Analysis
- max time kernel
145s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
10/01/2023, 19:00
General
- Target DHL document.exe
- Size 731KB
- Sample230110-xnnfdsch8t
- SHA256 f8067bcbd115afe0e506baf9b9de74c07f088a6b9a4cbdaa70826c26b0d0fa95
Malware Config
Signatures
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Looks up external IP address via web service 2 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
- 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 use of AdjustPrivilegeToken 3 IoCs
- Suspicious use of SetWindowsHookEx 1 IoCs
- Suspicious use of WriteProcessMemory 14 IoCs
Processes
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C:\Users\Admin\AppData\Local\Temp\DHL document.exe"C:\Users\Admin\AppData\Local\Temp\DHL document.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\yAVvexgcxLjQP.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\yAVvexgcxLjQP" /XML "C:\Users\Admin\AppData\Local\Temp\tmpFD50.tmp"2⤵
- Creates scheduled task(s)
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C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe"2⤵
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of SetWindowsHookEx
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
tmpFD50.tmp
memory/2552-133-0x0000000005C70000-0x0000000006214000-memory.dmp
memory/2552-134-0x0000000005760000-0x00000000057F2000-memory.dmp
memory/2552-135-0x0000000005730000-0x000000000573A000-memory.dmp
memory/2552-136-0x0000000007F30000-0x0000000007FCC000-memory.dmp
memory/2552-132-0x0000000000CD0000-0x0000000000D8C000-memory.dmp
memory/3344-150-0x00000000078E0000-0x00000000078FE000-memory.dmp
memory/3344-151-0x0000000008270000-0x00000000088EA000-memory.dmp
memory/3344-157-0x0000000007F50000-0x0000000007F58000-memory.dmp
memory/3344-142-0x0000000005A40000-0x0000000006068000-memory.dmp
memory/3344-156-0x0000000007F70000-0x0000000007F8A000-memory.dmp
memory/3344-155-0x0000000007E60000-0x0000000007E6E000-memory.dmp
memory/3344-144-0x0000000005960000-0x0000000005982000-memory.dmp
memory/3344-154-0x0000000007EB0000-0x0000000007F46000-memory.dmp
memory/3344-146-0x0000000006260000-0x00000000062C6000-memory.dmp
memory/3344-147-0x0000000006920000-0x000000000693E000-memory.dmp
memory/3344-148-0x0000000006EF0000-0x0000000006F22000-memory.dmp
memory/3344-149-0x0000000070900000-0x000000007094C000-memory.dmp
memory/3344-139-0x0000000003010000-0x0000000003046000-memory.dmp
memory/3344-152-0x0000000007C30000-0x0000000007C4A000-memory.dmp
memory/3344-153-0x0000000007CA0000-0x0000000007CAA000-memory.dmp
memory/4748-145-0x0000000005670000-0x00000000056D6000-memory.dmp
memory/4748-143-0x0000000000400000-0x0000000000430000-memory.dmp