Analysis
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max time kernel
140s -
max time network
182s -
platform
windows10-2004_x64 -
resource
win10v2004-20220721-en -
resource tags
arch:x64arch:x86image:win10v2004-20220721-enlocale:en-usos:windows10-2004-x64system -
submitted
24-07-2022 22:42
Static task
static1
Behavioral task
behavioral1
Sample
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe
Resource
win7-20220715-en
Behavioral task
behavioral2
Sample
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe
Resource
win10v2004-20220721-en
General
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Target
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe
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Size
220KB
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MD5
6f479074761ed9fcd8eab62e378dd861
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SHA1
8dfbcabb2c4c5c7aeaf13849c142073b14ed7c45
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SHA256
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178
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SHA512
171dfb6f9fabbdc794cf070e37e37900c985c5c7c1cd34fb944ffae18d552d1e0da58531b64a681d76c1d60d27552ad08220c633beb8e1a52a58ea9d070c7946
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.
Processes:
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exedescription ioc process Key value queried \REGISTRY\USER\S-1-5-21-1101907861-274115917-2188613224-1000\Control Panel\International\Geo\Nation 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe -
Suspicious use of SetThreadContext 1 IoCs
Processes:
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exedescription pid process target process PID 1996 set thread context of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 1 IoCs
Processes:
WerFault.exepid pid_target process target process 1472 4508 WerFault.exe svchost.exe -
NTFS ADS 1 IoCs
Processes:
cmd.exedescription ioc process File created C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe:Zone.Identifier cmd.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
Processes:
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exedescription pid process Token: SeDebugPrivilege 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe -
Suspicious use of WriteProcessMemory 13 IoCs
Processes:
8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exedescription pid process target process PID 1996 wrote to memory of 2868 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe cmd.exe PID 1996 wrote to memory of 2868 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe cmd.exe PID 1996 wrote to memory of 2868 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe cmd.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe PID 1996 wrote to memory of 4508 1996 8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe svchost.exe
Processes
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C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe"C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe"1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:1996 -
C:\Windows\SysWOW64\cmd.exe"C:\Windows\System32\cmd.exe" /C type nul > "C:\Users\Admin\AppData\Local\Temp\8d81b5ca59d55a84a33424e8d19502255ed81b56e08d00ebd2741598f7d4c178.exe:Zone.Identifier"2⤵
- NTFS ADS
PID:2868
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C:\Windows\SysWOW64\svchost.exeC:\Windows\system32\svchost.exe2⤵PID:4508
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4508 -s 4643⤵
- Program crash
PID:1472
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 428 -p 4508 -ip 45081⤵PID:3328