General
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Target
DocuSign01210021100.vbs
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Size
117KB
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Sample
241120-nt4j5awncv
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MD5
09b37aa6f30c0b1d83529d21212f416c
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SHA1
c1d1d0159bc1a8bb36c4a078ea653531707d27c0
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SHA256
b28413ca3c1fa5b50a96d5e9afc5e365efd8ac6be834e82b25c5bf323284f774
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SHA512
b87bd64f420b21ac3f68f1aa069c0569a3e685f29f55b86527a020a8ee91e0f4b3c0f1b368ed4d63240608dc59dff8b8cff191a2812833f36b9f298ae803de7b
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SSDEEP
1536:pwwwwwwwwQ+xgv0zmbqGwwwwwwwwwwwwwwwwwr:iu
Static task
static1
Behavioral task
behavioral1
Sample
DocuSign01210021100.vbs
Resource
win7-20240903-en
Behavioral task
behavioral2
Sample
DocuSign01210021100.vbs
Resource
win10v2004-20241007-en
Malware Config
Extracted
https://drive.google.com/uc?export=download&id=
Extracted
Protocol: ftp- Host:
ftp.desckvbrat.com.br - Port:
21 - Username:
desckvbrat1 - Password:
fYudY1578@@@@@@
Targets
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Target
DocuSign01210021100.vbs
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Size
117KB
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MD5
09b37aa6f30c0b1d83529d21212f416c
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SHA1
c1d1d0159bc1a8bb36c4a078ea653531707d27c0
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SHA256
b28413ca3c1fa5b50a96d5e9afc5e365efd8ac6be834e82b25c5bf323284f774
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SHA512
b87bd64f420b21ac3f68f1aa069c0569a3e685f29f55b86527a020a8ee91e0f4b3c0f1b368ed4d63240608dc59dff8b8cff191a2812833f36b9f298ae803de7b
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SSDEEP
1536:pwwwwwwwwQ+xgv0zmbqGwwwwwwwwwwwwwwwwwr:iu
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Detects ZharkBot payload
ZharkBot is a botnet written C++.
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Zharkbot family
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Blocklisted process makes network request
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Checks computer location settings
Looks up country code configured in the registry, likely geofence.
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Drops startup file
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Adds Run key to start application
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Hide Artifacts: Hidden Window
Windows that would typically be displayed when an application carries out an operation can be hidden.
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Indicator Removal: File Deletion
Adversaries may delete files left behind by the actions of their intrusion activity.
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Legitimate hosting services abused for malware hosting/C2
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Suspicious use of SetThreadContext
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MITRE ATT&CK Enterprise v15
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Defense Evasion
Hide Artifacts
1Hidden Window
1Indicator Removal
1File Deletion
1Modify Registry
1