Analysis
- max time kernel
140s - max time network
146s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
10/08/2023, 10:21
General
- Target tmp.exe
- Size 476KB
- Sample230810-mdv3dabh68
- SHA256 2e97f4d6bf16c0c918f48301129830bf11639ac0090c6eb937b126345fcc2185
Score
10/10
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 1 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 2 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\tmp.exe"C:\Users\Admin\AppData\Local\Temp\tmp.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 1184 -s 10762⤵
- Program crash
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 444 -p 1184 -ip 11841⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
System.dll
System.dll
System.dll
memory/1184-145-0x00000000032A0000-0x00000000058C6000-memory.dmp
memory/1184-146-0x00000000032A0000-0x00000000058C6000-memory.dmp
memory/1184-147-0x0000000077A71000-0x0000000077B91000-memory.dmp
memory/1184-148-0x00000000032A0000-0x00000000058C6000-memory.dmp