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Analysis
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max time kernel
154s -
max time network
158s -
platform
windows10-2004_x64 -
resource
win10v2004-20231215-en -
resource tags
arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system -
submitted
19/01/2024, 05:50
Behavioral task
behavioral1
Sample
3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe
Resource
win10v2004-20231215-en
General
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Target
3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe
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Size
48KB
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MD5
76946303d472f728b2cc2b67c1453fee
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SHA1
a070923cf779145dd2244d339061e4a1dceaf4aa
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SHA256
f3f9271ae8799336acfda326fba3e1cd7dbba9fe2b07aa4b1eda90e79e649793
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SHA512
846358a5852c193846d3607a9e993b23f58b76cbab7f2a3b0e013cbff737d1f18c25f115aba3c0cc8d1611f0e78a1d85764dc7f660a2f865ebaa145e52d41e9d
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SSDEEP
384:VPoWtkEwn65rgjAsGipk55D16xgXakhbZD0mRvR6JZlbw8hqIusZzZGS:Vo7O89p2rRpcnuK
Malware Config
Signatures
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Modifies Windows Firewall 1 TTPs 1 IoCs
pid Process 5028 netsh.exe -
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 3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe -
Executes dropped EXE 1 IoCs
pid Process 380 uhyhher.exe -
Adds Run key to start application 2 TTPs 2 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3073191680-435865314-2862784915-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\162f71f7ffbaf34cff578886b8650868 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\uhyhher.exe\" .." uhyhher.exe Set value (str) \REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\162f71f7ffbaf34cff578886b8650868 = "\"C:\\Users\\Admin\\AppData\\Local\\Temp\\uhyhher.exe\" .." uhyhher.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Suspicious use of AdjustPrivilegeToken 31 IoCs
description pid Process Token: SeDebugPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe Token: 33 380 uhyhher.exe Token: SeIncBasePriorityPrivilege 380 uhyhher.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 4672 wrote to memory of 380 4672 3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe 92 PID 4672 wrote to memory of 380 4672 3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe 92 PID 4672 wrote to memory of 380 4672 3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe 92 PID 380 wrote to memory of 5028 380 uhyhher.exe 96 PID 380 wrote to memory of 5028 380 uhyhher.exe 96 PID 380 wrote to memory of 5028 380 uhyhher.exe 96
Processes
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C:\Users\Admin\AppData\Local\Temp\3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe"C:\Users\Admin\AppData\Local\Temp\3020-4-0x00000000021A0000-0x00000000021AC000-memory.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4672 -
C:\Users\Admin\AppData\Local\Temp\uhyhher.exe"C:\Users\Admin\AppData\Local\Temp\uhyhher.exe"2⤵
- Executes dropped EXE
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:380 -
C:\Windows\SysWOW64\netsh.exenetsh firewall add allowedprogram "C:\Users\Admin\AppData\Local\Temp\uhyhher.exe" "uhyhher.exe" ENABLE3⤵
- Modifies Windows Firewall
PID:5028
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Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
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Downloads
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Filesize
48KB
MD576946303d472f728b2cc2b67c1453fee
SHA1a070923cf779145dd2244d339061e4a1dceaf4aa
SHA256f3f9271ae8799336acfda326fba3e1cd7dbba9fe2b07aa4b1eda90e79e649793
SHA512846358a5852c193846d3607a9e993b23f58b76cbab7f2a3b0e013cbff737d1f18c25f115aba3c0cc8d1611f0e78a1d85764dc7f660a2f865ebaa145e52d41e9d