Analysis
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max time kernel
147s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20240226-en -
resource tags
arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system -
submitted
08/04/2024, 19:07
Behavioral task
behavioral1
Sample
1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe
Resource
win7-20240221-en
General
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Target
1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe
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Size
82KB
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MD5
3c640fc1b364a3f18ebe78eb5c74dfe4
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SHA1
4452d32eae4e1267eb3c8c12d5a8a5be143d403a
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SHA256
1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d
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SHA512
fac2fe1fd26152cb00db2c04ee2da41b386a5e4e650adcb96177988fada7960b5b1c654b82d590dd3dd83c6427ab7db8716c923563ee423d94454774aa70146a
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SSDEEP
1536:yr3Z5IfQmv81a7pP1xF3yX2tM/jTEwwwEiiiiR:WJOfQm01q9X3yX2q/jTA
Malware Config
Signatures
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Detects Windows executables referencing non-Windows User-Agents 4 IoCs
resource yara_rule behavioral2/memory/1048-0-0x0000000000400000-0x0000000000416000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/files/0x000800000002322e-3.dat INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2128-5-0x0000000000400000-0x0000000000416000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA behavioral2/memory/2128-6-0x0000000000400000-0x0000000000416000-memory.dmp INDICATOR_SUSPICIOUS_EXE_NoneWindowsUA -
UPX dump on OEP (original entry point) 4 IoCs
resource yara_rule behavioral2/memory/1048-0-0x0000000000400000-0x0000000000416000-memory.dmp UPX behavioral2/files/0x000800000002322e-3.dat UPX behavioral2/memory/2128-5-0x0000000000400000-0x0000000000416000-memory.dmp UPX behavioral2/memory/2128-6-0x0000000000400000-0x0000000000416000-memory.dmp UPX -
Sets file to hidden 1 TTPs 1 IoCs
Modifies file attributes to stop it showing in Explorer etc.
pid Process 2952 attrib.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-1-5-21-3045580317-3728985860-206385570-1000\Control Panel\International\Geo\Nation 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe -
Executes dropped EXE 1 IoCs
pid Process 2128 vgkhost.exe -
resource yara_rule behavioral2/memory/1048-0-0x0000000000400000-0x0000000000416000-memory.dmp upx behavioral2/files/0x000800000002322e-3.dat upx behavioral2/memory/2128-5-0x0000000000400000-0x0000000000416000-memory.dmp upx behavioral2/memory/2128-6-0x0000000000400000-0x0000000000416000-memory.dmp upx -
Drops file in Windows directory 3 IoCs
description ioc Process File created C:\Windows\Debug\vgkhost.exe 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe File opened for modification C:\Windows\Debug\vgkhost.exe 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe File opened for modification C:\Windows\Debug\vgkhost.exe attrib.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks processor information in registry 2 TTPs 2 IoCs
Processor information is often read in order to detect sandboxing environments.
description ioc Process Key opened \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0 vgkhost.exe Key value queried \REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz vgkhost.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeIncBasePriorityPrivilege 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 1048 wrote to memory of 2952 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe 85 PID 1048 wrote to memory of 2952 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe 85 PID 1048 wrote to memory of 2952 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe 85 PID 1048 wrote to memory of 3992 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe 90 PID 1048 wrote to memory of 3992 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe 90 PID 1048 wrote to memory of 3992 1048 1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe 90 -
Views/modifies file attributes 1 TTPs 1 IoCs
pid Process 2952 attrib.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe"C:\Users\Admin\AppData\Local\Temp\1aae2e1eda0f7430aebdf5fdbc1924b31a1c198abaee61f34f23e341f603fe3d.exe"1⤵
- Checks computer location settings
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1048 -
C:\Windows\SysWOW64\attrib.exeattrib +a +s +h +r C:\Windows\Debug\vgkhost.exe2⤵
- Sets file to hidden
- Drops file in Windows directory
- Views/modifies file attributes
PID:2952
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C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del C:\Users\Admin\AppData\Local\Temp\1AAE2E~1.EXE > nul2⤵PID:3992
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C:\Windows\Debug\vgkhost.exeC:\Windows\Debug\vgkhost.exe1⤵
- Executes dropped EXE
- Checks processor information in registry
PID:2128
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
82KB
MD5865def54b77b942d6d56034a74db5618
SHA189711c606ff583f4331f603e6aaf1b6c07646a6a
SHA25694cc6bdef94c1960efcae7c43b1d05124213b2d5a1f12fdf50debabf57d70208
SHA512ad01922666996518ee397fa7c9cdc350be23e5fbd6b29239586e5a73da7a4bc1a72ac2d3c94ab92ef162b5f4ed9cf85717dd0e962f792cd9adf4f060a3330aa8