General
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Target
f17d07b910370d463155b794970c54a2624cadbcd809c252f0e8567dc68ce4c6.tar
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Size
770KB
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Sample
240522-c5dx3ahh3w
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MD5
24a8505c2bda522c6fcac5e2dce48945
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SHA1
fca5ccb5f1d83aed72a7a305ed89ba5ebf2dd047
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SHA256
f17d07b910370d463155b794970c54a2624cadbcd809c252f0e8567dc68ce4c6
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SHA512
4ebe85c8f0fbcd7d5b2ceb731a7fe61a5dfec8eeaee013c4a53e58dac8505d2d16ec4627f75bc9bbf83cd68604106aee29e5325769b603ba312d137f2ee4d9be
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SSDEEP
12288:lIeWET/mr9K+22BEEzFatnhghS5+v+DUVNf5MWl0axTbo+i1Cv7z2CjH8mri7jY3:5Wtb3BEMhS5qOk5SVC+CjcmWg
Static task
static1
Behavioral task
behavioral1
Sample
Invoice,cost inquiry_PDF.exe
Resource
win7-20240221-en
Behavioral task
behavioral2
Sample
Invoice,cost inquiry_PDF.exe
Resource
win10v2004-20240508-en
Malware Config
Extracted
Protocol: smtp- Host:
mail.deblokhoeve.be - Port:
587 - Username:
[email protected] - Password:
Blokhoeve2490.i
Extracted
agenttesla
Protocol: smtp- Host:
mail.deblokhoeve.be - Port:
587 - Username:
[email protected] - Password:
Blokhoeve2490.i - Email To:
[email protected]
Targets
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Target
Invoice,cost inquiry_PDF.exe
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Size
768KB
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MD5
aa2e0331db7bdc7c4a51a4d9ca2f4832
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SHA1
fc6ee67838401e8cbcef4e2c547d06cb56f12628
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SHA256
f0e352c3fbf73706c4c0fd2e118cf10b241dd880b58ceb67491b585fa5719fad
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SHA512
42c7e114bd9fa67301724481c893bfaa95ec633b53328d157b95e26fe6c4ca29e29cbda5ac0bcc73577865d18d4c3875fc2c08f6747f4ec926868e41c20957c3
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SSDEEP
12288:+IeWET/mr9K+22BEEzFatnhghS5+v+DUVNf5MWl0axTbo+i1Cv7z2CjH8mri7jY3:OWtb3BEMhS5qOk5SVC+CjcmWg
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Detect packed .NET executables. Mostly AgentTeslaV4.
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Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers.
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Detects executables referencing Windows vault credential objects. Observed in infostealers
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Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers
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Detects executables referencing many email and collaboration clients. Observed in information stealers
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Detects executables referencing many file transfer clients. Observed in information stealers
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Adds Run key to start application
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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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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Scheduled Task/Job
1