General
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Target
63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe
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Size
740KB
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Sample
240329-crbksaff36
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MD5
172ee9c18f5ccdc214e7beebcf9d8778
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SHA1
66ac5a38d22c834aa3672961d46ff111bf67e72c
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SHA256
63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079
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SHA512
54a83a65eeeca1821b89d809ea730d640fd9511e2b29f58009eb3d8138968c28f58fbd02e08552c4ca7a0828326a8b9649c2fe146aefd0e7a318d855fde11e18
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SSDEEP
12288:bSG0YOwqyjo4Gzzsj+YuFVQMJ2FE0KBxHPhzbwxwJlCMo1FPpXPtH:OWO7yn+Yucbex9wqJlz
Malware Config
Extracted
Protocol: smtp- Host:
mail.hoangtruongphat.com - Port:
587 - Username:
[email protected] - Password:
hoangtruongphat818
Extracted
agenttesla
Protocol: smtp- Host:
mail.hoangtruongphat.com - Port:
587 - Username:
[email protected] - Password:
hoangtruongphat818 - Email To:
[email protected]
Targets
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Target
63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079.exe
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Size
740KB
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MD5
172ee9c18f5ccdc214e7beebcf9d8778
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SHA1
66ac5a38d22c834aa3672961d46ff111bf67e72c
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SHA256
63235afcdd767af4bb5bd09488642bbdfb0124e9b4066d00b4815050faae9079
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SHA512
54a83a65eeeca1821b89d809ea730d640fd9511e2b29f58009eb3d8138968c28f58fbd02e08552c4ca7a0828326a8b9649c2fe146aefd0e7a318d855fde11e18
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SSDEEP
12288:bSG0YOwqyjo4Gzzsj+YuFVQMJ2FE0KBxHPhzbwxwJlCMo1FPpXPtH:OWO7yn+Yucbex9wqJlz
Score10/10-
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 binaries and memory artifacts referencing sandbox DLLs typically observed in sandbox evasion
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Detects executables packed with SmartAssembly
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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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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Reads WinSCP keys stored on the system
Tries to access WinSCP stored sessions.
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Reads data files stored by FTP clients
Tries to access configuration files associated with programs like FileZilla.
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Reads user/profile data of local email clients
Email clients store some user data on disk where infostealers will often target it.
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Reads user/profile data of web browsers
Infostealers often target stored browser data, which can include saved credentials etc.
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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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