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Analysis
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max time kernel
91s -
max time network
155s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
27/11/2022, 07:42
Static task
static1
Behavioral task
behavioral1
Sample
1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe
Resource
win10v2004-20220812-en
General
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Target
1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe
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Size
151KB
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MD5
ae94b23012157c6c7205b8428466fd47
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SHA1
b630a8f7ee8806263b2abe5b0a0884ecf2193ba5
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SHA256
1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1
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SHA512
c828f741706e9a3f5c2772e1f8e217718e7ed4d54bf1bd55b61bb29b96ae1a668362e031252184b9898e9f6ed8a9d78aaaf2dd0bda05fc4a2f615f32fae27fb6
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SSDEEP
3072:sLANnN/I9YHmMxd55YjB+4GSvquAJvJDsuMqd:sLANnq983vS5AN5t
Malware Config
Signatures
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Executes dropped EXE 2 IoCs
pid Process 4828 svhst.exe 4764 svhst.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-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation 1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\run = "C:\\Users\\Admin\\AppData\\Roaming\\test\\svhst.exe" 1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe -
Suspicious use of SetThreadContext 1 IoCs
description pid Process procid_target PID 4828 set thread context of 4764 4828 svhst.exe 83 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Program crash 3 IoCs
pid pid_target Process procid_target 1692 4764 WerFault.exe 83 4040 4828 WerFault.exe 80 2272 4764 WerFault.exe 83 -
Suspicious use of SetWindowsHookEx 2 IoCs
pid Process 1168 1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe 4828 svhst.exe -
Suspicious use of WriteProcessMemory 12 IoCs
description pid Process procid_target PID 1168 wrote to memory of 4828 1168 1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe 80 PID 1168 wrote to memory of 4828 1168 1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe 80 PID 1168 wrote to memory of 4828 1168 1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe 80 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83 PID 4828 wrote to memory of 4764 4828 svhst.exe 83
Processes
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C:\Users\Admin\AppData\Local\Temp\1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe"C:\Users\Admin\AppData\Local\Temp\1777653d60edd3e15c0670e99b2fa0d7efed3400614e59b3036b1196d67198d1.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1168 -
C:\Users\Admin\AppData\Roaming\test\svhst.exe"C:\Users\Admin\AppData\Roaming\test\svhst.exe"2⤵
- Executes dropped EXE
- Suspicious use of SetThreadContext
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Users\Admin\AppData\Roaming\test\svhst.exe"C:\Users\Admin\AppData\Roaming\test\svhst.exe"3⤵
- Executes dropped EXE
PID:4764 -
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1804⤵
- Program crash
PID:1692
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4764 -s 1844⤵
- Program crash
PID:2272
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 4828 -s 7803⤵
- Program crash
PID:4040
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 436 -p 4828 -ip 48281⤵PID:640
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 184 -p 4764 -ip 47641⤵PID:788
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 556 -p 4764 -ip 47641⤵PID:1772
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
151KB
MD5e8c3557fad4cb5036c931301b0dcb171
SHA1f145b92cbeb588b18c1a7784f566eba89e7dc97a
SHA25638af47e3d3304ff9448b51a214883f8347d3802d7f677ff43374c3ef046a8706
SHA512bf7c2cb74e7c469d51f7c025701223cdaaa1813243843e07186ff1675c9df8b5bf1ef1626fa15e9cbc96ab456e7797162517d42de198112c910b3a2279c7ddc3
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Filesize
151KB
MD5e8c3557fad4cb5036c931301b0dcb171
SHA1f145b92cbeb588b18c1a7784f566eba89e7dc97a
SHA25638af47e3d3304ff9448b51a214883f8347d3802d7f677ff43374c3ef046a8706
SHA512bf7c2cb74e7c469d51f7c025701223cdaaa1813243843e07186ff1675c9df8b5bf1ef1626fa15e9cbc96ab456e7797162517d42de198112c910b3a2279c7ddc3
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Filesize
151KB
MD5e8c3557fad4cb5036c931301b0dcb171
SHA1f145b92cbeb588b18c1a7784f566eba89e7dc97a
SHA25638af47e3d3304ff9448b51a214883f8347d3802d7f677ff43374c3ef046a8706
SHA512bf7c2cb74e7c469d51f7c025701223cdaaa1813243843e07186ff1675c9df8b5bf1ef1626fa15e9cbc96ab456e7797162517d42de198112c910b3a2279c7ddc3