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Analysis
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max time kernel
151s -
max time network
146s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
09/01/2024, 11:31
Behavioral task
behavioral1
Sample
63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe
Resource
win7-20231129-en
Behavioral task
behavioral2
Sample
63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe
Resource
win10v2004-20231215-en
General
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Target
63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe
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Size
898KB
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MD5
3a6ff68a44349ca9b20a285ef1df0336
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SHA1
f39f558e923468f714627876a6e9b6b5c5942b4f
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SHA256
63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624
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SHA512
7823bab27d2090aaac192257b9c2cf2d0e27fb0a054507f85a3f41db31c66736098fa282a6516b320ce9446d7f3ebb8effe1475ea2337daecb8b317b413ddaea
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SSDEEP
12288:ZEmC92VnpahSR7BwkASR49lkQHMIWnDp2f47z4PUUhyVb4yDKUgM03qcmT1Pd2K0:ZEF96C6BwkP2lsl8fEQemdM03zmT1P+
Malware Config
Signatures
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Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\Control Panel\International\Geo\Nation 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe -
resource yara_rule behavioral2/memory/1312-0-0x0000000000230000-0x000000000036C000-memory.dmp upx behavioral2/memory/1312-36-0x0000000000230000-0x000000000036C000-memory.dmp upx behavioral2/memory/1312-37-0x0000000000230000-0x000000000036C000-memory.dmp upx -
Drops file in Windows directory 2 IoCs
description ioc Process File opened for modification C:\Windows\WindowSystemNewUpdate827.log unregmp2.exe File opened for modification C:\Windows\WindowsShell85144.log 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 3 IoCs
description pid Process Token: SeDebugPrivilege 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe Token: SeDebugPrivilege 1436 unregmp2.exe Token: SeIncBasePriorityPrivilege 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe -
Suspicious use of WriteProcessMemory 9 IoCs
description pid Process procid_target PID 1312 wrote to memory of 1436 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 89 PID 1312 wrote to memory of 1436 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 89 PID 1312 wrote to memory of 1436 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 89 PID 1312 wrote to memory of 1436 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 89 PID 1312 wrote to memory of 1436 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 89 PID 1312 wrote to memory of 1436 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 89 PID 1312 wrote to memory of 3912 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 92 PID 1312 wrote to memory of 3912 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 92 PID 1312 wrote to memory of 3912 1312 63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe 92
Processes
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C:\Users\Admin\AppData\Local\Temp\63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe"C:\Users\Admin\AppData\Local\Temp\63b78afc8267d9cf78149ae67b68c53985d8565a6de074a7b51a491c425e4624.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1312 -
C:\Windows\SysWOW64\unregmp2.exe"C:\Windows\SysWOW64\unregmp2.exe"2⤵
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
PID:1436
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\63B78A~1.EXE > nul2⤵PID:3912
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