General
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Target
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
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Size
615KB
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Sample
240327-c4e4qsag89
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MD5
8e089d97fa7d7acabafb8ffd749876e5
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SHA1
625e04a12599d830249c86edb35b05a99b68f537
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SHA256
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee
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SHA512
471baa32b433bcd7585450fd2db4ea1ad186bf2d52244fe38dcdbd1c9a3c3b57ddc71475d3587570dd7d16f4f9451b18b77dde3a43b36d114d33562feac72a82
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SSDEEP
12288:fUBa5WiPawnvlHEwl9bvgmr5jgtsvEG+yusvkXOUfDJI8JDr7:sziPa0vlHpghtK+jBFJDr7
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.sintecno.gr - Port:
587 - Username:
[email protected] - Password:
k$&v8@,q0Pf# - Email To:
[email protected]
Targets
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Target
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee.exe
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Size
615KB
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MD5
8e089d97fa7d7acabafb8ffd749876e5
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SHA1
625e04a12599d830249c86edb35b05a99b68f537
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SHA256
b5cf618624df43618a33e366aed44a39db6c92c6e4c9dbe7905e415307028aee
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SHA512
471baa32b433bcd7585450fd2db4ea1ad186bf2d52244fe38dcdbd1c9a3c3b57ddc71475d3587570dd7d16f4f9451b18b77dde3a43b36d114d33562feac72a82
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SSDEEP
12288:fUBa5WiPawnvlHEwl9bvgmr5jgtsvEG+yusvkXOUfDJI8JDr7:sziPa0vlHpghtK+jBFJDr7
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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