Analysis
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max time kernel
91s -
max time network
154s -
platform
windows10-2004_x64 -
resource
win10v2004-20220812-en -
resource tags
arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system -
submitted
15/02/2023, 14:59
Static task
static1
Behavioral task
behavioral1
Sample
file.exe
Resource
win7-20220812-en
Behavioral task
behavioral2
Sample
file.exe
Resource
win10v2004-20220812-en
General
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Target
file.exe
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Size
109KB
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MD5
3fce78722810e0401bbcc3e4a34f7968
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SHA1
94a9a29b18b11c638d2afaa354ba4e977275554d
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SHA256
45cfdf58e57165604dac0d03c127f143c3474fe41d2f3c7e11397775ddef198d
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SHA512
8f63b89798886c9f350aaafeb9650a923d953c6991f203bea5f27abdc223d43aa6314a9356bd781f3dfa87d83388b6d3c616ad5e6b68e66ccaad7a05147d3dd1
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SSDEEP
1536:Xtl+apfNkYJTrgdiPluOcN6IBVQqqTxJHWe2zm4uz5dh3Hkq4/T6dcE19gLIMLme:T/pf9ttcQIToHWef4u136E/gLIML8Y
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.
description ioc Process Key value queried \REGISTRY\USER\S-1-5-21-2891029575-1462575-1165213807-1000\Control Panel\International\Geo\Nation file.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\Zwrpcwpgnqm = "\"C:\\Users\\Admin\\AppData\\Roaming\\Ozdoijutr\\Zwrpcwpgnqm.exe\"" file.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
pid pid_target Process procid_target 3188 5004 WerFault.exe 78 -
Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 4904 powershell.exe 4904 powershell.exe -
Suspicious use of AdjustPrivilegeToken 2 IoCs
description pid Process Token: SeDebugPrivilege 5004 file.exe Token: SeDebugPrivilege 4904 powershell.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 5004 wrote to memory of 4904 5004 file.exe 79 PID 5004 wrote to memory of 4904 5004 file.exe 79 PID 5004 wrote to memory of 4904 5004 file.exe 79
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Checks computer location settings
- Adds Run key to start application
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:5004 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ENC cwB0AGEAcgB0AC0AcwBsAGUAZQBwACAALQBzAGUAYwBvAG4AZABzACAAMgAwAA==2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:4904
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 5004 -s 21642⤵
- Program crash
PID:3188
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C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 200 -p 5004 -ip 50041⤵PID:1100