Analysis
- max time kernel
143s - max time network
147s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
06/07/2023, 10:51
General
- Target a5bbf13f56f953eb2313a2b3d2c0c06d14bc1455a06f01ec91a7f4e2e3757297.exe
- Size 847KB
- Sample230706-mxtcwsbd9t
- SHA256 a5bbf13f56f953eb2313a2b3d2c0c06d14bc1455a06f01ec91a7f4e2e3757297
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- 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 50 IoCs
- Suspicious use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of WriteProcessMemory 12 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\a5bbf13f56f953eb2313a2b3d2c0c06d14bc1455a06f01ec91a7f4e2e3757297.exe"C:\Users\Admin\AppData\Local\Temp\a5bbf13f56f953eb2313a2b3d2c0c06d14bc1455a06f01ec91a7f4e2e3757297.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\SysWOW64\WindowsPowerShell\v1.0\powershell.exe"C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\BbtxSmFvqPT.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\SysWOW64\schtasks.exe"C:\Windows\System32\schtasks.exe" /Create /TN "Updates\BbtxSmFvqPT" /XML "C:\Users\Admin\AppData\Local\Temp\tmp318B.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\MSBuild.exe"2⤵
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
__PSScriptPolicyTest_kxguhxim.3fv.ps1
tmp318B.tmp
memory/1752-154-0x0000000005790000-0x00000000057F6000-memory.dmp
memory/1752-149-0x0000000002630000-0x0000000002640000-memory.dmp
memory/1752-186-0x0000000007470000-0x0000000007478000-memory.dmp
memory/1752-185-0x0000000007490000-0x00000000074AA000-memory.dmp
memory/1752-184-0x0000000007380000-0x000000000738E000-memory.dmp
memory/1752-144-0x0000000000C90000-0x0000000000CC6000-memory.dmp
memory/1752-183-0x00000000073D0000-0x0000000007466000-memory.dmp
memory/1752-146-0x0000000005060000-0x0000000005688000-memory.dmp
memory/1752-182-0x00000000071C0000-0x00000000071CA000-memory.dmp
memory/1752-177-0x00000000063F0000-0x000000000640E000-memory.dmp
memory/1752-150-0x0000000002630000-0x0000000002640000-memory.dmp
memory/1752-181-0x0000000007150000-0x000000000716A000-memory.dmp
memory/1752-152-0x0000000004E00000-0x0000000004E22000-memory.dmp
memory/1752-153-0x0000000004EA0000-0x0000000004F06000-memory.dmp
memory/1752-178-0x0000000002630000-0x0000000002640000-memory.dmp
memory/1752-180-0x000000007F1F0000-0x000000007F200000-memory.dmp
memory/1752-166-0x0000000006410000-0x0000000006442000-memory.dmp
memory/1752-165-0x0000000005E50000-0x0000000005E6E000-memory.dmp
memory/1752-179-0x0000000007790000-0x0000000007E0A000-memory.dmp
memory/1752-167-0x0000000071B00000-0x0000000071B4C000-memory.dmp
memory/3156-147-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3156-164-0x00000000013D0000-0x000000000171A000-memory.dmp
memory/3156-151-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3156-189-0x0000000000400000-0x000000000042F000-memory.dmp
memory/3588-134-0x0000000005180000-0x0000000005724000-memory.dmp
memory/3588-136-0x0000000004C80000-0x0000000004C8A000-memory.dmp
memory/3588-133-0x0000000000150000-0x000000000022A000-memory.dmp
memory/3588-135-0x0000000004BD0000-0x0000000004C62000-memory.dmp
memory/3588-139-0x0000000007C70000-0x0000000007D0C000-memory.dmp
memory/3588-138-0x0000000004D60000-0x0000000004D70000-memory.dmp
memory/3588-137-0x0000000004D60000-0x0000000004D70000-memory.dmp