Analysis
- max time kernel
142s - max time network
87s - platform
windows10-2004_x64 - resource
win10v2004-20230220-en - resource tags
- submitted
08/06/2023, 10:58
General
- Target d0f5e5711e53f7f7cafbfedf8b7614341a9685043411bdfd2b0d1f1aebb1ac3f.exe
- Size 609KB
- Sample230608-m2tt8aee69
- SHA256 d0f5e5711e53f7f7cafbfedf8b7614341a9685043411bdfd2b0d1f1aebb1ac3f
Malware Config
Signatures
- Guloader,Cloudeye
A shellcode based downloader first seen in 2020.
- Checks QEMU agent file 2 TTPs 2 IoCs
Checks presence of QEMU agent, possibly to detect virtualization.
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- Suspicious use of NtCreateThreadExHideFromDebugger 1 IoCs
- Suspicious use of NtSetInformationThreadHideFromDebugger 2 IoCs
- Suspicious use of SetThreadContext 1 IoCs
- Drops file in Windows directory 1 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious behavior: EnumeratesProcesses 2 IoCs
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\d0f5e5711e53f7f7cafbfedf8b7614341a9685043411bdfd2b0d1f1aebb1ac3f.exe"C:\Users\Admin\AppData\Local\Temp\d0f5e5711e53f7f7cafbfedf8b7614341a9685043411bdfd2b0d1f1aebb1ac3f.exe"1⤵
- Checks QEMU agent file
- Loads dropped DLL
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious use of SetThreadContext
- Drops file in Windows directory
- Suspicious behavior: MapViewOfSection
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\d0f5e5711e53f7f7cafbfedf8b7614341a9685043411bdfd2b0d1f1aebb1ac3f.exe"C:\Users\Admin\AppData\Local\Temp\d0f5e5711e53f7f7cafbfedf8b7614341a9685043411bdfd2b0d1f1aebb1ac3f.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtCreateThreadExHideFromDebugger
- Suspicious use of NtSetInformationThreadHideFromDebugger
- Suspicious behavior: EnumeratesProcesses
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
System.dll
memory/1120-166-0x0000000004530000-0x00000000073FC000-memory.dmp
memory/1120-167-0x0000000004530000-0x00000000073FC000-memory.dmp
memory/2492-168-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2492-169-0x0000000001660000-0x000000000452C000-memory.dmp
memory/2492-170-0x0000000001660000-0x000000000452C000-memory.dmp
memory/2492-183-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2492-184-0x0000000001660000-0x000000000452C000-memory.dmp
memory/2492-185-0x0000000001660000-0x000000000452C000-memory.dmp
memory/2492-186-0x0000000000400000-0x0000000001654000-memory.dmp
memory/2492-187-0x0000000034BA0000-0x0000000034EEA000-memory.dmp