General
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Target
Trojan;MSIL.FormBook.AFO!MTB.zip
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Size
196KB
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Sample
240601-tb2wgaga8t
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MD5
7b62401dd82be69f3f95f7883fc7e0d9
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SHA1
6adab9ef01fec2977a9c6cb3f6ff60b01fed124f
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SHA256
69811fd3a031d56a72428c7f3f74573b551c2dc9b5fb827fe6740a03eae55f31
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SHA512
faf526a594d2dec297072f66cb5db65b32f2313ffa5f2e25f66a85e40f51b1effcf1f40e02b2e62382275414c6acd3212b30d78855c3ce70f4bd54949840df15
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SSDEEP
6144:jHgkWXiqhrYVZCmZLZ5r8n2ys/xdbFqm2WJ:yX1hUbLZJ88PbMm2M
Static task
static1
Behavioral task
behavioral1
Sample
Trojan;MSIL.FormBook.AFO!MTB.zip
Resource
win11-20240508-en
Malware Config
Extracted
http://94.103.188.126/jerry/putty.zip
Extracted
http://49.13.194.118/ADServices.exe
Extracted
asyncrat
AsyncRAT
Fresh
pepecasas123.net:4608
AsyncMutex_5952
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delay
3
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install
false
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install_folder
%AppData%
Extracted
\Device\HarddiskVolume1\HOW TO BACK FILES.txt
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin
http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion
Extracted
amadey
4.21
49e482
http://147.45.47.70
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install_dir
1b29d73536
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install_file
axplont.exe
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strings_key
4d31dd1a190d9879c21fac6d87dc0043
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url_paths
/tr8nomy/index.php
Extracted
redline
@LOGSCLOUDYT_BOT
185.172.128.33:8970
Extracted
redline
1
185.215.113.67:40960
Targets
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Target
Trojan;MSIL.FormBook.AFO!MTB.zip
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Size
196KB
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MD5
7b62401dd82be69f3f95f7883fc7e0d9
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SHA1
6adab9ef01fec2977a9c6cb3f6ff60b01fed124f
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SHA256
69811fd3a031d56a72428c7f3f74573b551c2dc9b5fb827fe6740a03eae55f31
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SHA512
faf526a594d2dec297072f66cb5db65b32f2313ffa5f2e25f66a85e40f51b1effcf1f40e02b2e62382275414c6acd3212b30d78855c3ce70f4bd54949840df15
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SSDEEP
6144:jHgkWXiqhrYVZCmZLZ5r8n2ys/xdbFqm2WJ:yX1hUbLZJ88PbMm2M
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Exela Stealer
Exela Stealer is an open source stealer originally written in .NET and later transitioned to Python that was first observed in August 2023.
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Modifies firewall policy service
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PrivateLoader
PrivateLoader is a downloader sold as a pay-per-install malware distribution service.
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RedLine
RedLine Stealer is a malware family written in C#, first appearing in early 2020.
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RedLine payload
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TargetCompany,Mallox
TargetCompany (aka Mallox) is a ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.
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Grants admin privileges
Uses net.exe to modify the user's privileges.
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Identifies VirtualBox via ACPI registry values (likely anti-VM)
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Modifies boot configuration data using bcdedit
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Renames multiple (7042) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Blocklisted process makes network request
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Downloads MZ/PE file
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Modifies Windows Firewall
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Possible privilege escalation attempt
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.NET Reactor proctector
Detects an executable protected by an unregistered version of Eziriz's .NET Reactor.
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Checks BIOS information in registry
BIOS information is often read in order to detect sandboxing environments.
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Drops startup file
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Executes dropped EXE
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Identifies Wine through registry keys
Wine is a compatibility layer capable of running Windows applications, which can be used as sandboxing environment.
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Loads dropped DLL
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Modifies file permissions
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Accesses Microsoft Outlook profiles
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Accesses cryptocurrency files/wallets, possible credential harvesting
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Adds Run key to start application
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Checks installed software on the system
Looks up Uninstall key entries in the registry to enumerate software on the system.
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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Legitimate hosting services abused for malware hosting/C2
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Looks up external IP address via web service
Uses a legitimate IP lookup service to find the infected system's external IP.
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Writes to the Master Boot Record (MBR)
Bootkits write to the MBR to gain persistence at a level below the operating system.
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AutoIT Executable
AutoIT scripts compiled to PE executables.
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Drops file in System32 directory
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Suspicious use of NtSetInformationThreadHideFromDebugger
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Execution
Command and Scripting Interpreter
2PowerShell
1Scheduled Task/Job
1System Services
1Service Execution
1Persistence
Account Manipulation
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
4Windows Service
4Pre-OS Boot
1Bootkit
1Scheduled Task/Job
1Privilege Escalation
Abuse Elevation Control Mechanism
1Bypass User Account Control
1Account Manipulation
1Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
4Windows Service
4Scheduled Task/Job
1Defense Evasion
Abuse Elevation Control Mechanism
1Bypass User Account Control
1File and Directory Permissions Modification
1Hide Artifacts
1Hidden Files and Directories
1Impair Defenses
6Disable or Modify System Firewall
1Disable or Modify Tools
4Modify Registry
8Pre-OS Boot
1Bootkit
1Subvert Trust Controls
1Install Root Certificate
1Virtualization/Sandbox Evasion
2