General
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Target
7dfcbf301686c56d31874642114b1c6ff8f78dfd76f4b88c2f056b7aff8fb19b.bin
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Size
1.2MB
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Sample
220101-zjrclaaaa5
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MD5
09d73a4f9a9b1f31e90978e5f32f97cd
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SHA1
6482d6d44f2ec6a9477d365a7d547ae86724da5f
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SHA256
7dfcbf301686c56d31874642114b1c6ff8f78dfd76f4b88c2f056b7aff8fb19b
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SHA512
f3afb2ce031d58063a66642dc07c535e35f3ead6c6c88b5104177a37d15082d7680a18e0a1ee349f7b2bdcaa0ac36f5e2d07ff49b6696e21039e5338d73d7147
Static task
static1
Behavioral task
behavioral1
Sample
7dfcbf301686c56d31874642114b1c6ff8f78dfd76f4b88c2f056b7aff8fb19b.bin.exe
Resource
win7-en-20211208
Behavioral task
behavioral2
Sample
7dfcbf301686c56d31874642114b1c6ff8f78dfd76f4b88c2f056b7aff8fb19b.bin.exe
Resource
win10-en-20211208
Malware Config
Extracted
C:\ProgramData\Service\SURTR_README.txt
Extracted
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\SURTR_README.hta
Extracted
C:\ProgramData\Service\SURTR_README.txt
Extracted
C:\ProgramData\Microsoft\Windows\Start Menu\Programs\StartUp\SURTR_README.hta
Targets
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Target
7dfcbf301686c56d31874642114b1c6ff8f78dfd76f4b88c2f056b7aff8fb19b.bin
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Size
1.2MB
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MD5
09d73a4f9a9b1f31e90978e5f32f97cd
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SHA1
6482d6d44f2ec6a9477d365a7d547ae86724da5f
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SHA256
7dfcbf301686c56d31874642114b1c6ff8f78dfd76f4b88c2f056b7aff8fb19b
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SHA512
f3afb2ce031d58063a66642dc07c535e35f3ead6c6c88b5104177a37d15082d7680a18e0a1ee349f7b2bdcaa0ac36f5e2d07ff49b6696e21039e5338d73d7147
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Clears Windows event logs
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Modifies boot configuration data using bcdedit
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Blocklisted process makes network request
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Disables Task Manager via registry modification
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Disables use of System Restore points
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Drops startup file
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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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Sets desktop wallpaper using registry
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MITRE ATT&CK Enterprise v6
Persistence
Hidden Files and Directories
1Registry Run Keys / Startup Folder
1Scheduled Task
1Defense Evasion
Bypass User Account Control
1Disabling Security Tools
1File Deletion
2Hidden Files and Directories
1Indicator Removal on Host
1Modify Registry
4