General
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Target
vbc.exe
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Size
790KB
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Sample
230328-lfggbsab55
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MD5
425124613fb9b4daa38460652fd75e38
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SHA1
542aaee07bd064ec6384685fa9ce9299915fb680
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SHA256
e867bb597f0b2dc98057b12a90fcef9eca9e78ae1081370f89593f0d210a5acb
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SHA512
915a482bd97fa5ac8e388b46bb89e011742595a56902c65fbba0edb1b218a1b600a31c7bf3cc2735c02f3f9b6d59995ebf9203e2701ad8cd03c7a2316e1208dd
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SSDEEP
24576:ImVZ9mZojJlboENPVbI/4WgyJMLpLJwK:93sojkEP1LWTep+K
Static task
static1
Behavioral task
behavioral1
Sample
vbc.exe
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
vbc.exe
Resource
win10v2004-20230220-en
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot5663632223:AAG5KHZDs7KWoaqTYx3lSyFlOdfD9vGegQo/
Targets
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Target
vbc.exe
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Size
790KB
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MD5
425124613fb9b4daa38460652fd75e38
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SHA1
542aaee07bd064ec6384685fa9ce9299915fb680
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SHA256
e867bb597f0b2dc98057b12a90fcef9eca9e78ae1081370f89593f0d210a5acb
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SHA512
915a482bd97fa5ac8e388b46bb89e011742595a56902c65fbba0edb1b218a1b600a31c7bf3cc2735c02f3f9b6d59995ebf9203e2701ad8cd03c7a2316e1208dd
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SSDEEP
24576:ImVZ9mZojJlboENPVbI/4WgyJMLpLJwK:93sojkEP1LWTep+K
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Uses the VBS compiler for execution
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Accesses Microsoft Outlook profiles
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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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