General
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Target
09d3784d1f2f53fa0f4f30ea6a707acf92def296e10b25d3a42625db5823bfaa.exe
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Size
2.3MB
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Sample
240523-bfazfaga58
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MD5
93865833b3053530f78b1383f9209814
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SHA1
a79c8913e2dfb460e44b8d2e6a50d7fd92ea6612
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SHA256
09d3784d1f2f53fa0f4f30ea6a707acf92def296e10b25d3a42625db5823bfaa
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SHA512
4d46193d703504886e3e10276be867a31c92e922b3e2e461c85fbd573f54819756388d51c090d6c39d16c097b0785ad740405ca4f3309fc72b03ca4480e1c1e0
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SSDEEP
49152:2/VZrC9C/srB/8CO253KJf+vqioQIEh6U+Y70e1tBgT1ETeRxn5aa:2/z6CEJZ953K1+f+M+m0e1tBg2mxn8a
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
66.29.151.236 - Port:
587 - Username:
[email protected] - Password:
YuWsikfV67lD - Email To:
[email protected]
Extracted
Protocol: smtp- Host:
66.29.151.236 - Port:
587 - Username:
[email protected] - Password:
YuWsikfV67lD
Targets
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Target
09d3784d1f2f53fa0f4f30ea6a707acf92def296e10b25d3a42625db5823bfaa.exe
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Size
2.3MB
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MD5
93865833b3053530f78b1383f9209814
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SHA1
a79c8913e2dfb460e44b8d2e6a50d7fd92ea6612
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SHA256
09d3784d1f2f53fa0f4f30ea6a707acf92def296e10b25d3a42625db5823bfaa
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SHA512
4d46193d703504886e3e10276be867a31c92e922b3e2e461c85fbd573f54819756388d51c090d6c39d16c097b0785ad740405ca4f3309fc72b03ca4480e1c1e0
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SSDEEP
49152:2/VZrC9C/srB/8CO253KJf+vqioQIEh6U+Y70e1tBgT1ETeRxn5aa:2/z6CEJZ953K1+f+M+m0e1tBg2mxn8a
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 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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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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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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