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Analysis
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max time kernel
118s -
max time network
150s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
25/10/2022, 16:15
Static task
static1
Behavioral task
behavioral1
Sample
D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe
Resource
win7-20220812-en
General
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Target
D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe
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Size
222KB
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MD5
ad6cf8a4d980c85d0e357003068a74c0
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SHA1
09fa60806d733bbfa6088708e9efb9c70abbd962
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SHA256
d8cf6c04ef24dae0e6292747296741cec4ae6849ec5ee3be112cd79c8d9757c7
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SHA512
1ba27b4428f43bdfd7bd0579314433caff594b2bb546c875c8f6ab07aa22fdff574a140b6f936fcef1e752bc34d1b725f3a263d7ed29c5fc04840c1be6d9d528
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SSDEEP
6144:ViZ0VevyvkENll/Iy9QAt3oC8ugJrDKNrO+L:IXEiy9tCugJrDKT
Malware Config
Signatures
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Executes dropped EXE 3 IoCs
pid Process 4828 wfyoot.exe 2680 wfyoot.exe 1452 wfyoot.exe -
Checks computer location settings 2 TTPs 2 IoCs
Looks up country code configured in the registry, likely geofence.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe Key value queried \REGISTRY\USER\S-1-5-21-2295526160-1155304984-640977766-1000\Control Panel\International\Geo\Nation wfyoot.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
pid Process 4760 schtasks.exe -
Suspicious use of WriteProcessMemory 6 IoCs
description pid Process procid_target PID 744 wrote to memory of 4828 744 D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe 83 PID 744 wrote to memory of 4828 744 D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe 83 PID 744 wrote to memory of 4828 744 D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe 83 PID 4828 wrote to memory of 4760 4828 wfyoot.exe 84 PID 4828 wrote to memory of 4760 4828 wfyoot.exe 84 PID 4828 wrote to memory of 4760 4828 wfyoot.exe 84
Processes
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C:\Users\Admin\AppData\Local\Temp\D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe"C:\Users\Admin\AppData\Local\Temp\D8CF6C04EF24DAE0E6292747296741CEC4AE6849EC5EE.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:744 -
C:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exe"C:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exe"2⤵
- Executes dropped EXE
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:4828 -
C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /SC MINUTE /MO 1 /TN wfyoot.exe /TR "C:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exe" /F3⤵
- Creates scheduled task(s)
PID:4760
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C:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exeC:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exe1⤵
- Executes dropped EXE
PID:2680
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C:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exeC:\Users\Admin\AppData\Local\Temp\358fd4ed64\wfyoot.exe1⤵
- Executes dropped EXE
PID:1452
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
222KB
MD5ad6cf8a4d980c85d0e357003068a74c0
SHA109fa60806d733bbfa6088708e9efb9c70abbd962
SHA256d8cf6c04ef24dae0e6292747296741cec4ae6849ec5ee3be112cd79c8d9757c7
SHA5121ba27b4428f43bdfd7bd0579314433caff594b2bb546c875c8f6ab07aa22fdff574a140b6f936fcef1e752bc34d1b725f3a263d7ed29c5fc04840c1be6d9d528
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Filesize
222KB
MD5ad6cf8a4d980c85d0e357003068a74c0
SHA109fa60806d733bbfa6088708e9efb9c70abbd962
SHA256d8cf6c04ef24dae0e6292747296741cec4ae6849ec5ee3be112cd79c8d9757c7
SHA5121ba27b4428f43bdfd7bd0579314433caff594b2bb546c875c8f6ab07aa22fdff574a140b6f936fcef1e752bc34d1b725f3a263d7ed29c5fc04840c1be6d9d528
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Filesize
222KB
MD5ad6cf8a4d980c85d0e357003068a74c0
SHA109fa60806d733bbfa6088708e9efb9c70abbd962
SHA256d8cf6c04ef24dae0e6292747296741cec4ae6849ec5ee3be112cd79c8d9757c7
SHA5121ba27b4428f43bdfd7bd0579314433caff594b2bb546c875c8f6ab07aa22fdff574a140b6f936fcef1e752bc34d1b725f3a263d7ed29c5fc04840c1be6d9d528
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Filesize
222KB
MD5ad6cf8a4d980c85d0e357003068a74c0
SHA109fa60806d733bbfa6088708e9efb9c70abbd962
SHA256d8cf6c04ef24dae0e6292747296741cec4ae6849ec5ee3be112cd79c8d9757c7
SHA5121ba27b4428f43bdfd7bd0579314433caff594b2bb546c875c8f6ab07aa22fdff574a140b6f936fcef1e752bc34d1b725f3a263d7ed29c5fc04840c1be6d9d528