General
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Target
SMBKT-20242005.exe
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Size
733KB
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Sample
240521-nv861acd98
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MD5
52cd4c12a51d55526ceaa5f1e7f9e549
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SHA1
6ca86a42d595177b554b82b5ea3a8dd40d1c3280
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SHA256
c501ebcf488c9172ef490e70c37adb5926783f3aac132e8ff58f90b6b3232e03
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SHA512
285b4be0a187e86316b0335e5b587dffb23b77952afef1f48a879b567e602a6abbada2c7cd65a02f4afb2f532e2912b446849255b9d2e70448ab6e0cc5ceffe4
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SSDEEP
12288:q3nKIhswVenAJnEorRImS5INcHSXh6+QrDpLh/xWBdEhApcVXf2kR:4nKLmeYBWGcHMgFhZWBnsV
Static task
static1
Behavioral task
behavioral1
Sample
SMBKT-20242005.exe
Resource
win7-20240220-en
Malware Config
Extracted
agenttesla
Protocol: smtp- Host:
mail.stilbo.eu - Port:
587 - Username:
[email protected] - Password:
StilBO_#1 - Email To:
[email protected]
Targets
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Target
SMBKT-20242005.exe
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Size
733KB
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MD5
52cd4c12a51d55526ceaa5f1e7f9e549
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SHA1
6ca86a42d595177b554b82b5ea3a8dd40d1c3280
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SHA256
c501ebcf488c9172ef490e70c37adb5926783f3aac132e8ff58f90b6b3232e03
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SHA512
285b4be0a187e86316b0335e5b587dffb23b77952afef1f48a879b567e602a6abbada2c7cd65a02f4afb2f532e2912b446849255b9d2e70448ab6e0cc5ceffe4
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SSDEEP
12288:q3nKIhswVenAJnEorRImS5INcHSXh6+QrDpLh/xWBdEhApcVXf2kR:4nKLmeYBWGcHMgFhZWBnsV
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Command and Scripting Interpreter: PowerShell
Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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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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