Analysis
- max time kernel
143s - max time network
148s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
22/08/2023, 10:20
General
- Target RFQ20230822_Commercial list.exe
- Size 337KB
- Sample230822-mc3qtsbf68
- SHA256 5e9f2794e4c145fbd68caacb0ddf07d1d35fc9b8b748b2efd1b4063e489f8223
Malware Config
Signatures
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 2 IoCs
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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 NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of AdjustPrivilegeToken 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\RFQ20230822_Commercial list.exe"C:\Users\Admin\AppData\Local\Temp\RFQ20230822_Commercial list.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Windows\Microsoft.NET\Framework\v4.0.30319\caspol.exe"C:\Users\Admin\AppData\Local\Temp\RFQ20230822_Commercial list.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 2656 -s 25883⤵
- Program crash
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-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 424 -p 2656 -ip 26561⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
System.dll
System.dll
memory/2656-166-0x0000000038C50000-0x0000000038C60000-memory.dmp
memory/2656-165-0x0000000071C80000-0x0000000072430000-memory.dmp
memory/2656-147-0x00000000773E8000-0x00000000773E9000-memory.dmp
memory/2656-148-0x0000000077405000-0x0000000077406000-memory.dmp
memory/2656-161-0x0000000073340000-0x0000000074594000-memory.dmp
memory/2656-162-0x0000000000DB0000-0x000000000608A000-memory.dmp
memory/2656-163-0x0000000073340000-0x0000000073384000-memory.dmp
memory/2656-173-0x0000000071C80000-0x0000000072430000-memory.dmp
memory/2656-164-0x0000000039210000-0x00000000397B4000-memory.dmp
memory/2656-171-0x0000000000DB0000-0x000000000608A000-memory.dmp
memory/2656-167-0x0000000038AA0000-0x0000000038B06000-memory.dmp
memory/2656-168-0x0000000077361000-0x0000000077481000-memory.dmp
memory/2656-170-0x0000000071C80000-0x0000000072430000-memory.dmp
memory/4760-145-0x0000000077361000-0x0000000077481000-memory.dmp
memory/4760-146-0x0000000010000000-0x0000000010006000-memory.dmp