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Analysis
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max time kernel
60s -
max time network
31s -
platform
windows7_x64 -
resource
win7-20221111-en -
resource tags
arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system -
submitted
03/12/2022, 20:43
Static task
static1
Behavioral task
behavioral1
Sample
c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Resource
win7-20221111-en
Behavioral task
behavioral2
Sample
c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
Resource
win10v2004-20220812-en
General
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Target
c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe
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Size
532KB
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MD5
5add16bad399367a797077a9b4e8f05e
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SHA1
72c2a88f0888ffba938641b20034848aaee5f61d
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SHA256
c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70
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SHA512
2870f810777d5b25999b6b0ebe3cda2c13d0e6254d97350d21ab7c73526950cb6de1d74f994b6b779975abe55e2439c3e315798d891e47652c4370e66b7092d0
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SSDEEP
12288:9E4Zlkz9u7YmKpRJmqzV/GwcLQo3wkZC/:9Eglkz9u7YFRwqp/GwaQkwp
Malware Config
Signatures
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Checks BIOS information in registry 2 TTPs 2 IoCs
BIOS information is often read in order to detect sandboxing environments.
description ioc Process Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosVersion c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\SystemBiosDate c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe -
Program crash 1 IoCs
pid pid_target Process procid_target 668 1152 WerFault.exe 12 -
Modifies registry class 9 IoCs
description ioc Process Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\Assembly = "Microsoft.Vbe.Interop, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C" c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0\Assembly = "Microsoft.Vbe.Interop, Version=14.0.0.0, Culture=neutral, PublicKeyToken=71E9BCE111E9429C" c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0\RuntimeVersion = "v2.0.50727" c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA} c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Key created \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\Class = "Microsoft.Vbe.Interop.LinkedWindowsClass" c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\RuntimeVersion = "v2.0.50727" c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\Classes\Wow6432Node\CLSID\{BD211730-848A-F6FE-25B7-CBFA4A410CDA}\InprocServer32\14.0.0.0\Class = "Microsoft.Vbe.Interop.LinkedWindowsClass" c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: 33 1152 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe Token: SeIncBasePriorityPrivilege 1152 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe -
Suspicious use of WriteProcessMemory 4 IoCs
description pid Process procid_target PID 1152 wrote to memory of 668 1152 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe 28 PID 1152 wrote to memory of 668 1152 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe 28 PID 1152 wrote to memory of 668 1152 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe 28 PID 1152 wrote to memory of 668 1152 c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe 28
Processes
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C:\Users\Admin\AppData\Local\Temp\c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe"C:\Users\Admin\AppData\Local\Temp\c4ba87799a700ca2a6c9d76af47cce6b8dc2abb72322153a36caaae9a7dc7d70.exe"1⤵
- Checks BIOS information in registry
- Modifies registry class
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1152 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1152 -s 4762⤵
- Program crash
PID:668
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