General
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Target
b1d833987e962980bfddb58f3f40d044ad3d248e6e4a1c9cd00df8b3c13af0b5
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Size
239KB
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Sample
240430-b4zmpshb9x
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MD5
601172b7aaaacf005837b8125f68d5d3
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SHA1
93c0c3687e60c5ad3143ec98bec80a100d89ec2a
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SHA256
b1d833987e962980bfddb58f3f40d044ad3d248e6e4a1c9cd00df8b3c13af0b5
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SHA512
a2f3eb8a470b1fbfbc07b31ca6ee0883938acb52e38b6891010d40c00061815f4a36e500ccef9b9f1cbbc0c6bc3cf5b4c579c85c3f9e0be4f0a2d5aa1c0920c0
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SSDEEP
6144:Id4UcLe0JOqPQZR8MDdATCR3tSv0W8Fo8+FeKCT6:DUP/qPQZR8MxAm/S8W8FocKCT
Static task
static1
Behavioral task
behavioral1
Sample
b1d833987e962980bfddb58f3f40d044ad3d248e6e4a1c9cd00df8b3c13af0b5.xls
Resource
win7-20240220-en
Behavioral task
behavioral2
Sample
b1d833987e962980bfddb58f3f40d044ad3d248e6e4a1c9cd00df8b3c13af0b5.xls
Resource
win10v2004-20240419-en
Malware Config
Extracted
agenttesla
https://api.telegram.org/bot7109324415:AAEtV_HPY0H5mFN38xCDvDx9wl-kKb9q3qg/
Targets
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Target
b1d833987e962980bfddb58f3f40d044ad3d248e6e4a1c9cd00df8b3c13af0b5
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Size
239KB
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MD5
601172b7aaaacf005837b8125f68d5d3
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SHA1
93c0c3687e60c5ad3143ec98bec80a100d89ec2a
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SHA256
b1d833987e962980bfddb58f3f40d044ad3d248e6e4a1c9cd00df8b3c13af0b5
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SHA512
a2f3eb8a470b1fbfbc07b31ca6ee0883938acb52e38b6891010d40c00061815f4a36e500ccef9b9f1cbbc0c6bc3cf5b4c579c85c3f9e0be4f0a2d5aa1c0920c0
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SSDEEP
6144:Id4UcLe0JOqPQZR8MDdATCR3tSv0W8Fo8+FeKCT6:DUP/qPQZR8MxAm/S8W8FocKCT
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AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
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Blocklisted process makes network request
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Abuses OpenXML format to download file from external location
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Adds Run key to start application
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Enumerates connected drives
Attempts to read the root path of hard drives other than the default C: drive.
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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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Drops file in System32 directory
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Suspicious use of SetThreadContext
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MITRE ATT&CK Matrix ATT&CK v13
Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Credential Access
Unsecured Credentials
4Credentials In Files
3Credentials in Registry
1