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Depending on the Ramsay version, file collection won’t be restricted to the local system drive, but also will search additional drives such as network or removable drives | ['T1039'] |
We were able to expand on some of the findings about the group and provide insights into the additional variants that it uses. We were able to trace the implant back to at least 2015, where it also had variants intended to hijack the execution of the Telegram and Chrome applications as a persistence method | ['T1036.005'] |
During execution, the code employs byte randomization to obscure its behavior. This is achieved by using the host’s current time as a seed for a pseudorandom number generator, and then performing additional operations against that output. The resulting values are used to overwrite blocks of previously executed code. Th... | ['T1001.001'] |
The worm deploys the XMRig mining tool to mine monero crypto-currency and generate cash for the attackers. One of the Mining pools they use provides detailed information about the systems the worm has compromised | ['T1496'] |
Avira’s Advanced Threat Research team, has been tracking Mustang Panda APT for a while. According to Avira’s telemetry data, Mustang Panda mostly targets Asia-Pacific (APAC) countries and uses Cobalt or PlugX as payload | ['T1204.002', 'T1049', 'T1560.001', 'T1057', 'T1016', 'T1083'] |
It also deletes Windows Event Logs : Application, Security, Setup, System. It is less focused on deleting documents | ['T1070.001'] |
We have been tracking RDAT since 2017, when we first saw this tool uploaded to a webshell related to the TwoFace webshell discussed in our Striking Oil blog published on September 26, 2017. RDAT has been under active development since 2017, resulting in multiple variations of the tool that rely on both HTTP and DNS tun... | ['T1071.003', 'T1001.002'] |
Comnie Malware Family Comnie uses the RC4 algorithm in multiple locations both to obfuscate strings used by the malware, as well as for network communication. More information about how Comnie handles identified security products may be found in the technical analysis in the Appendix. Comnie is able to achieve persiste... | ['T1547.001'] |
DropBook’s capabilities include checking installed programs and file names for reconnaissance, executing shell commands received from Facebook or Simplenote, and fetching additional payloads from Dropbox and running them | ['T1059.003', 'T1105', 'T1083'] |
The malware uploads the stolen data to third-party cloud storage providers. The sample identified in the wild is configured to upload to pCloud, but functionality to upload to Dropbox, Box and Yandex Cloud is also included | ['T1102.002'] |
Valak C2 traffic returns data as encoded ASCII text that is decoded on the victim host and saved as malware items like script files, EXE used during the infection and data for registry updates for the Valak infection | ['T1564.004', 'T1132.001', 'T1132.001'] |
In addition to the encrypted strings table, BitPaymer replaces the remaining strings in the binary with hashes and uses an algorithm to match these hashes with strings that exist on the host. The hash algorithm has been replicated in Python below | ['T1547.001'] |
It is notable that we have only seen these exploitation attempts leverage publicly available malware such as Cobalt Strike and Meterpreter. While these backdoors are full featured, in previous incidents APT41 has waited to deploy more advanced malware until they have fully understood where they were and carried out som... | ['T1059.001'] |
In the old campaign the actor used TextBoxes to store its data while in the new one the content has been base64 encoded within the document content. In the new campaign JavaScript files have been used to execute batch and PowerShell files. The new campaign uses Powershell and URLMON API calls to download the cab file w... | ['T1560'] |
The “sysid” parameter contains a campaign ID in newer versions of the malware, the Windows version running on the infected machine, system architecture, username, and a random integer | ['T1082'] |
Two days later, a second email — purportedly a warning from a Pakistani military about the Pegasus spyware — containing a cutt.ly link to a malicious encrypted Word document and the password for decryption will be sent to the target. The sender address impersonates a service similar to that on the first email (alert@is... | ['T1566.002'] |
Key points PureCrypter is a fully-featured loader being sold since at least March 2021 The malware has been observed distributing a variety of remote access trojans and information stealers The loader is a .NET executable obfuscated with SmartAssembly and makes use of compression, encryption and obfuscation to evade an... | ['T1547.001'] |
The Gamaredon group has been active since at least 2013. Contrary to other APT groups, the Gamaredon group seems to make no effort in trying to stay under the radar. Typical Gamaredon compromise chain . While most of the recent publications have focused on the spearphishing emails together with the downloaders they con... | ['T1119'] |
Emotet is an advanced, modular banking Trojan that primarily functions as a downloader or dropper of other banking Trojans. Additionally, Emotet is a polymorphic banking Trojan that can evade typical signature-based detection. It has several methods for maintaining persistence, including auto-start registry keys and se... | ['T1547.001'] |
The vmtools.dll file is a modified DLL that both ensures persistence and loads MSBuild.exe, which is the BADNEWS malware renamed to spoof a legitimate Microsoft Visual Studio tool. A number of commands are provided to the attackers, including the ability to download and execute additional information, upload documents ... | ['T1105'] |
Fast-paced intrusion • Very stealthy • Rapidly changing tactics • Employed advanced attack techniques 4) 4. All rights reserved.23 Our Response: Tackled Attacker WMI Usage ADVANCED ATTACK TECHNIQUES 24) 24. Captured entire functions of PS scripts, attacker commands, script output, etc. Wrote indicators based on observe... | ['T1550.003'] |
Stage2.exe is a beaconing implant that performs an HTTPS connection to download a JPG file hosted on Discord’s content delivery network (CDN). Discord’s CDN is a user-created service that allows users to host attachments and is not malicious. The hosted file is retrieved from the following URL | ['T1102'] |
Volgmer payloads have been observed in 32-bit form as either executables or dynamic-link library (.dll) files. The malware uses a custom binary protocol to beacon back to the command and control (C2) server, often via TCP port 8080 or 8088, with some payloads implementing Secure Socket Layer (SSL) encryption to obfusca... | ['T1573.002'] |
Encrypting the data. Exfiltrating gathered data through a POST request or by uploading it to an FTP server. Sending execution logs to a remote server | ['T1048.003'] |
Spreadsheets and documents with customer lists, investments and trading operations - Internal presentations - Software licenses and credentials for trading software/platforms - Cookies and session information from browsers - Email credentials - Customer credit card information and proof of address/identity documents | ['T1539'] |
The C# variant of RogueRobin attempts to detect if it is executing in a sandbox environment using the same commands as in the PowerShell variant of RogueRobin. The series of commands, as seen in Table 2, include checks for virtualized environments, low memory, and processor counts, in addition to checks for common anal... | ['T1047', 'T1497.001'] |
APT39 facilitates lateral movement through myriad tools such as Remote Desktop Protocol (RDP), Secure Shell (SSH), PsExec, RemCom, and xCmdSvc. Custom tools such as REDTRIP, PINKTRIP, and BLUETRIP have also been used to create SOCKS5 proxies between infected hosts. In addition to using RDP for lateral movement, APT39 h... | ['T1547.001', 'T1021.004', 'T1018', 'T1560.001', 'T1021.001', 'T1090.001'] |
is responsible for a vast amount of information stealing, and is able to collect information through hooking, clipboard usage, and monitoring the keystate | ['T1115'] |
At this time, Janicab is not detected by most anti-virus software, and it slips right past the built-in defenses of Mac OS X in the hands of an unobservant or unsavvy user. Further, seeing other malware using a signed app is troubling, as it may indicate that Gatekeeper will not offer as much security as had been hoped... | ['T1553.002'] |
All this information is stored in the C:\Users\Public\Videos\si.ini file and sent in an email message, as an attachment, via SMTPS, using the default port 465. The email body contains the string SI (which probably stands for System Information), the recipient is sym777.g@post.cz. For all email exchange, the message’s S... | ['T1074.001'] |
If no exceptions occur, the Windows executable drops a DLL file in the user's AppData\Local\Temp\ directory, creates a randomly-named folder under C:\ProgramData\ directory and moves the DLL under that folder as a random file name. This Redaman DLL is made persistent through a scheduled Windows task with the following ... | ['T1036.004'] |
This report provides background on Windows container vulnerabilities, gives a technical overview of Siloscape and offers recommendations on best practices for securing Windows containers | ['T1068'] |
Fine-tuning DaserfOur analyses revealed Daserf regularly undergo technical improvements to keep itself under the radar against traditional anti-virus (AV) detection. Daserf 1.72 and later versions use the alternative base64+RC4 to encrypt the feedback data, while others use different encryption such as 1.50Z, which use... | ['T1027.002', 'T1027.005', 'T1027'] |
MSTIC previously tracked ACTINIUM activity as DEV-0157, and this group is also referred to publicly as Gamaredon | ['T1105', 'T1608.001', 'T1059.001', 'T1059.005'] |
At first glance, these links generally cause less suspicion for the targets. After opening the links and several redirections, the victims are led to final phishing domains such as “mobile[.]recover-session-service[.]site” etc | ['T1583.001'] |
On July 18, 2018, one day after the AZORult update above was announced, we observed a campaign delivering thousands of messages targeting North America that used the new version of AZORult. The messages used employment-related subjects such as “About a role” and “Job Application”. The attached documents used file names... | ['T1140'] |
The final payload created by the aforementioned process is a well known backdoor, also known as ROKRAT by Cisco Talos. One of its main functions is to steal information. Upon execution, this malware creates 10 random directory paths and uses them for a specially designated purpose | ['T1083'] |
The executables installed by the compiled AutoIt scripts is a backdoor that Molerats has used in many attack campaigns. Based on our research, the Spark backdoor has been used by Molerats since at least early 2017, as it was the main payload in the Operation Parliament campaign reported by Kaspersky | ['T1218.007'] |
To obtain the session ID and pre-shared key, the payload will issue a query to resolve the following domain: mail. random number between 100000 and 999999>.<c2 name> This request notifies the C2 server that the payload is about to send system specific data as part of the initial handshake | ['T1016'] |
Numbered Panda has a long list of high-profile victims and is known by a number of names including: DYNCALC, IXESHE, JOY RAT, APT-12, etc. Numbered Panda has targeted a variety of victims including but not limited to media outlets, high-tech companies, and multiple governments. Numbered Panda has targeted organizations... | ['T1102.002'] |
To perform this task, the developer used the GDI API: A keylogger is also present in the analyzed sample. The SetWindowsHookEx() API is used to retrieve the stroked keys. The GetKeyNameText() API is used to retrieve a string that represents the name of a key. In addition to the key, the title of the foreground window i... | ['T1010'] |
Key Points PrivateLoader is a downloader malware family that was first identified in early 2021 The loader’s primary purpose is to download and execute additional malware as part of a pay-per-install (PPI) malware distribution service PrivateLoader is used by multiple threat actors to distribute ransomware, information... | ['T1105'] |
AT&T Alien Labs has discovered new malicious files distributed by the threat actor TeamTNT. The use of open-source tools like Lazagne allows TeamTNT to stay below the radar for a while, making it more difficult for anti-virus companies to detect | ['T1082', 'T1049'] |
It also creates a pipe for inter-process communication (IPC) by calling the pipe() function for getting two file descriptors for reading and writing data. It also enables non-blocking I/O for the writing file descriptor by using ioctl | ['T1559'] |
The threat actor abused the stolen credentials to create rogue, high-privileged domain user accounts which they then used to take malicious action. By creating these accounts, they ensured they would maintain access between different waves of the attack. Once the threat actor regains their foothold, they already have a... | ['T1078', 'T1136.002'] |
Since September of 2018, Redaman banking malware has been distributed through malspam. These emails have file attachments. These file attachments are archived Windows executable files disguised as a PDF document. In September 2018, the attachments were zip archives. In October 2018, the attachments were zip archives, 7... | ['T1027', 'T1566.001', 'T1036'] |
Volexity has worked with multiple victim organizations to assist with incident response efforts and to remedy their compromised systems. This process lead to the identification of different ways the OceanLotus group gains access to the compromised websites and how they maintain access | ['T1505.003'] |
Anomali Labs has detected a new campaign by the threat group Rocke. In this campaign, the group has changed from using a Python-based malware to a malware written in Golang. The detection of this new malware is nearly non-existent. In addition, the group uses a private mining pool to reduce the risks of being detected | ['T1059.006'] |
Winnti Linux variant’s core functionality is within ‘libxselinux’. Upon execution, an embedded configuration is decoded from the data section using a simple XOR cipher. An example Python function to decode this configuration is shown below | ['T1027', 'T1140'] |
Lazarus Group is one of the most sophisticated North Korean APTs that has been active since 2009. The group is responsible for many high profile attacks in the past and has gained worldwide attention. The Malwarebytes Threat Intelligence team is actively monitoring its activities and was able to spot a new campaign on ... | ['T1105'] |
The payload is an application that creates a hidden window (the name of the class and the window is SK_Parasite | ['T1564.003'] |
kaudited — A file installed as /usr/bin/kaudited. This binary will drop and install several loadable kernel modules (LKMs) on the infected machine. To ensure that the infected machine won’t crash due to the kernel-mode rootkits, it uses different modules for specific kernel versions. The kaudited binary also drops a wa... | ['T1105'] |
These credentials are used in a credential stuffing or password spraying attack against the victim’s remote services, such as webmail or other internet reachable mail services. After obtaining a valid account, they use this account to access the victim’s VPN, Citrix or another remote service that allows access to the n... | ['T1078.002'] |
TIN WOODLAWNTIN WOODLAWN is a targeted threat group, active since at least 2014, that CTU researchers assess with moderate confidence is operated or tasked by the Vietnamese government. TIN WOODLAWN is technically capable and uses a range of techniques including template injection, obfuscated macros and steganography f... | ['T1059.001'] |
As mentioned in our earlier technical report on Trojan.Hydraq, the back door allows the attacker to perform any of the following activities: - Adjust token privileges. Create, modify, and delete registry subkeys. Retrieve a list of logical drives. Uninstall itself by deleting the HKEY_LOCAL_MACHINE\SYSTEM\CurrentContro... | ['T1012'] |
Hancitor, a loader that provides Malware as a Service, has been observed distributing malware such as FickerStealer | ['T1566.001'] |
The third campaign deployed a different custom RPC backdoor to that used in the second campaign. This backdoor used code derived from the publicly available PowerShellRunner tool to execute PowerShell scripts without using powershell.exe. Prior to execution, the PowerShell scripts were stored Base64-encoded in the regi... | ['T1059.003'] |
A typical response from the C2 server is a legitimate-looking webpage containing the string “!DOCTYPE html”, which the malware checks. The malware then locates a Base64-encoded blob, which it decodes and proceeds to load as a shellcode | ['T1140'] |
One of the Cobalt 2.0 Group’s latest campaigns, an attack that leads to a Cobalt Strike beacon and to JavaScript backdoor, was investigated and presented by the Talos research team. Morphisec has investigated different samples from the same campaign. The following analysis presents our findings, focusing on the additio... | ['T1059.007'] |
The malware will collect data from the victim machine and write this information to LOCALAPPDATA%\MicroSoft Updatea\uplog.tmp. The following information is collected from the victim | ['T1074.001'] |
Like most ransomware, Sodinokibi encrypts files and adds a random extension such as “test.jpg.1cd8t9ahd5” (Data Encrypted for Impact, ATT&CK T1486). It also drops a ransom note in folders that contain encrypted files. The name of the ransom note is the random extension added to the encrypted files. For example, if ... | ['T1486'] |
The DUBNIUM samples are distributed in various ways, one instance was using a zero-day exploit that targets Adobe Flash, in December 2015 | ['T1203'] |
The payload decryption routine uses a custom symmetric algorithm based on arithmetic and byte-shift instructions – a combination of SHL/SHR/SUB/ADD/XOR – with hardcoded keys | ['T1140'] |
This recent APT10 activity has included both traditional spear phishing and access to victim’s networks through service providers. For more information on infection via service providers see M-Trends 2016). APT10 spear phishes have been relatively unsophisticated, leveraging .lnk files within archives, files with doubl... | ['T1204.002'] |
Malicious web shell activity as observed in the Cybereason solution. Commands executed via a modified version of the China Chopper web shell | ['T1059.003', 'T1505.003'] |
This campaign is different from prior activity because a new dropper was observed being used by Rocke that is written in Go (Golang) instead of Python. The detection for the malware on VirusTotal (VT) is nearly non-existent. Figure 1, below, shows the detections for the most recent sample submitted to VT. It can be see... | ['T1057'] |
On June 12, QakBot continued its evolution. The delivery method of a .ZIP file to malicious .VBS was the same, but this time QakBot also dropped a Zloader payload on its victim. Beginning around 14:24 UTC, Falcon Complete observed QakBot threat actors using a new .VBS payload | ['T1059.005'] |
While the decoy in Figure 2 is displayed, the macro will search the document for the delimiter ###$$$ and write the base64 encoded text that follows this delimiter to the file %APPDATA%\Base.txt. OopsIE Trojan Analysis The OopsIE Trojan delivered in these attacks is packed with SmartAssembly and further obfuscated with... | ['T1041'] |
Replying to @ESETresearchAttackers replaced win_fw.dll, an internal component that is executed during IDA Pro installation, with a malicious DLL. The malicious win_fw.dll creates a Windows scheduled task that starts a second malicious component, idahelper.dll, from the IDA plugins folder | ['T1036.004', 'T1574.002'] |
The maldocs used in this campaign typically contain a malicious VBA macro that downloads and activates the next stage of the infection chain. Although the VBA macro contains an auto open subroutine, it uses several VBA functions registered to trigger if the "Typing replaces selection" property is enabled in Microsoft W... | ['T1140'] |
The injection function is responsible for resolving all the required API calls. It then opens a handle to the target process by using the OpenProcess API. It uses the SizeOfImage field in the NT header of the DLL to be injected into allocated space into the target process along with a separate space for the init_dll fu... | ['T1104'] |
SDBbot is a new remote access Trojan (RAT) written in C++ that has been delivered by the Get2 downloader in recent TA505 campaigns. Its name is derived from the debugging log file (sdb.log.txt) and DLL name (BotDLL[.]dll) used in the initial analyzed sample. SDBbot is composed of three pieces: an installer, a loader, a... | ['T1055.001', 'T1105'] |
This would save them the trouble of needing to load additional malware to exfiltrate files or other material. We are aware of no evidence of follow-up interactions between the operators and successful victims as part of any extortion attempts. Furthermore, Stealth Falcon’s use of JavaScript to profile and de-anonymize ... | ['T1005'] |
Siloscape mimics CExecSvc.exe privileges by impersonating its main thread and then calls NtSetInformationSymbolicLink on a newly created symbolic link to break out of the container | ['T1134.001'] |
One unique and fairly recent variant is a plain downloader that follows a similar convention to the aforementioned MarkiRAT implants. It also leverages MFC and embeds its logic within a CDialog class, getting executed upon initiation of an MFC dialog object during runtime. The use of this sample diverges from those use... | ['T1071.001'] |
The implementation details of Seaduke also have some similarities to WellMess, as both use encrypted cookies to transfer metadata about the data being sent and use obfuscated base64 data in HTTP requests as the contents of communications. These techniques are not unique to Blue Kitsune but provide an interesting correl... | ['T1071.001'] |
1) The group delivers a malicious Office lure document to victims, most likely via a spear-phishing email. 2) These lure documents use titles with government, military, and diplomatic themes, and the file names are written in English or Cyrillic languages. These documents are not very sophisticated, but evidence of inf... | ['T1566.001'] |
In past attacks, the Ragnar Locker group has used exploits of managed service providers or attacks on Windows Remote Desktop Protocol (RDP) connections to gain a foothold on targeted networks | ['T1569.002', 'T1543.003'] |
DOMAIN} nltest /domain_trusts /all_trusts net share route print netstat -nao net localgroup qwinsta WMI Query ROOT\CIMV2:Win32_BIOS WMI Query ROOT\CIMV2:Win32_DiskDrive WMI Query ROOT\CIMV2:Win32_PhysicalMemory WMI Query ROOT\CIMV2:Win32_Product WMI Query ROOT\CIMV2:Win32_PnPEntity - whoami /all - arp -a - ipconfig /al... | ['T1047'] |
Once gaining the initial foothold into a container, Hildegard establishes either a tmate session or an IRC channel back to the C2. It is unclear how TeamTNT chooses and tasks between these two C2 channels, as both can serve the same purpose. Unit 42 researchers have not observed any commands in the IRC channel. However... | ['T1071'] |
Grants system privileges via Windows services - Uses DLL sideloading technique to evade security solutions - Starts and injects code to a new svchost process to prevent tracking | ['T1543.003', 'T1055'] |
This component overwrites the master boot record (MBR) of an infected host with a malicious 16-bit bootloader with a SHA256 hash of | ['T1561.002'] |
Analysis of BRONZE BUTLER's operations, targeting, and capability led CTU researchers to assess that it is likely that the group is located in the PRC. The group has used spearphishing, strategic web compromises (SWCs), and an exploit of a zero-day vulnerability to compromise targeted systems. After exfiltrating target... | ['T1087.002'] |
Also, the PlugX that Mustang Panda APT uses has some extra features, including spreading through USB, gathering information, and stealing documents in air-gaped networks via USB | ['T1560.003', 'T1074.001'] |
The following commands were used to create and add the DefaultUser account to the local Administrators group, and subsequently hide the account from the Windows logon screen | ['T1087.001', 'T1098', 'T1136.001', 'T1564.002'] |
At this point the C2 sends a JSON with commands to execute, including uploading/downloading files, taking a screenshot and finding *.rar archives on the host | ['T1041'] |
The captured sample used in this analysis is an MSI file named “view-(AVISO)2020.msi” that is spread through a ZIP archive, just as with the previous variant. In the previous analysis, I showed that this MSI file is parsed and executed automatically by MsiExec.exe when a user double clicks on it in Windows OS | ['T1218.007'] |
After gaining an initial foothold on a compromised system, the NICKEL actors routinely performed reconnaissance on the network, working to gain access to additional accounts or higher-value systems. NICKEL typically deployed a keylogger to capture credentials from users on compromised systems | ['T1070', 'T1114.002'] |
In 2011, while still at McAfee, he went on to reveal Comment Crew (which he calls Comment Panda) operating alongside Elderwood. It's called that because the group so often uses a technique involving internal software "comment" features on web pages as a tool to infiltrate target computers | ['T1189'] |
The threat actor initially conducts system reconnaissance to assess the AV software installed and the user privilege | ['T1518.001'] |
We observed the threat group upload a second stage malware, known as BUBBLEWRAP (also known as Backdoor.APT.FakeWinHTTPHelper) to their Dropbox account along with the following command | ['T1049', 'T1069.001'] |
Finally, it deletes Shadow Volume Copies and prevent the victim from using Shadow Volumes to recover their encrypted files | ['T1047', 'T1490'] |
Deriving C2 URLs from a Domain Generation Algorithm (DGA) using lists of domain names, subdomains, top-level domains (TLDs), Uniform Resource Identifiers (URIs), file names, and file extensions | ['T1568.002'] |
These fake updates are served via legitimate websites that have been compromised, and use social engineering to trick users into downloading and running a malicious executable. These fake update campaigns appear to be a pay-per-install service that is simply used by INDRIK SPIDER to deliver its malware, as other malwar... | ['T1105'] |
Although the developers attempt to use a denylist of files and directories to skip, it was observed encrypting core Windows operating system files, which caused the operating system to become unstable and crash. This was observed when running the ransomware on a Windows 2012 machine | ['T1486'] |
In a new sample of the REvil ransomware discovered by MalwareHunterTeam, a new -smode command-line argument was added that forces the computer to reboot into Safe Mode before encrypting a device | ['T1562.009'] |
The BackConfig custom trojan has a flexible plug-in architecture for components offering various features, including the ability to gather system and keylog information and to upload and execute additional payloads | ['T1105', 'T1082'] |
Since then, the threat actors have expanded delivery to include malicious spam campaigns, RDP attacks, and other attack vectors. In other reports, threat actors breached at least three managed service providers (MSPs) and used the access to deploy REvil to the MSPs' customers | ['T1566'] |
The following diagram illustrates the changes applied to targeted executables after infection has taken place and how these components interact on execution | ['T1091'] |
Basic system enumeration – The script collects the Windows OS version, computer name, and the contents of a file Ni.txt in $APPDATA path; the file is presumably created and filled by different modules that will be downloaded by the main module | ['T1082'] |
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