General
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Target
4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
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Size
713KB
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Sample
240522-b1nq2agd5v
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MD5
a68f9e8fe3a6b2a073267af477c2bf31
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SHA1
96a682c454cfb32ae2928801e89e67b043e47a4e
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SHA256
4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5
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SHA512
4e283db9f2f7f013b34e37755005f8eea84153d74b3eed513a07fd97ac3bf11c805d4c34ecd68320defe194fde3fb19bd2ff7759659d75dc703bfc51645a60eb
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SSDEEP
12288:dU9jA6JPQbRhkYvg86stzDpi4L3HIb66KWlyaiZAuW1md+:AbsPTL3HIb66rsUD
Malware Config
Extracted
Protocol: smtp- Host:
mail.avtorska.com.mk - Port:
587 - Username:
[email protected] - Password:
avtorska2014@
Extracted
agenttesla
Protocol: smtp- Host:
mail.avtorska.com.mk - Port:
587 - Username:
[email protected] - Password:
avtorska2014@ - Email To:
[email protected]
Targets
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Target
4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5.exe
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Size
713KB
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MD5
a68f9e8fe3a6b2a073267af477c2bf31
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SHA1
96a682c454cfb32ae2928801e89e67b043e47a4e
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SHA256
4da3b16ba44f07d99f82116f4a316e47d83862e575a6e4185f504d52e69cc6f5
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SHA512
4e283db9f2f7f013b34e37755005f8eea84153d74b3eed513a07fd97ac3bf11c805d4c34ecd68320defe194fde3fb19bd2ff7759659d75dc703bfc51645a60eb
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SSDEEP
12288:dU9jA6JPQbRhkYvg86stzDpi4L3HIb66KWlyaiZAuW1md+:AbsPTL3HIb66rsUD
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 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 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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