Analysis
- max time kernel
143s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20230703-en - resource tags
- submitted
06/08/2023, 09:58
General
- Target 7da5b2207cf789cf6807b6cc3373048cbc951d7fd09ca8fb858693cfa5f5edbaexe_JC.exe
- Size 254KB
- Sample230806-lztk1agh97
- SHA256 7da5b2207cf789cf6807b6cc3373048cbc951d7fd09ca8fb858693cfa5f5edba
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
- 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: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 4 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\7da5b2207cf789cf6807b6cc3373048cbc951d7fd09ca8fb858693cfa5f5edbaexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\7da5b2207cf789cf6807b6cc3373048cbc951d7fd09ca8fb858693cfa5f5edbaexe_JC.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\7da5b2207cf789cf6807b6cc3373048cbc951d7fd09ca8fb858693cfa5f5edbaexe_JC.exe"C:\Users\Admin\AppData\Local\Temp\7da5b2207cf789cf6807b6cc3373048cbc951d7fd09ca8fb858693cfa5f5edbaexe_JC.exe"2⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
System.dll
alfaquins.ini
memory/4512-357-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4512-358-0x0000000001660000-0x0000000002F70000-memory.dmp
memory/4512-359-0x0000000001660000-0x0000000002F70000-memory.dmp
memory/4512-360-0x0000000077E28000-0x0000000077E29000-memory.dmp
memory/4512-361-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4512-362-0x0000000077DA1000-0x0000000077EC1000-memory.dmp
memory/4956-353-0x00000000052E0000-0x0000000006BF0000-memory.dmp
memory/4956-354-0x00000000052E0000-0x0000000006BF0000-memory.dmp
memory/4956-355-0x0000000077DA1000-0x0000000077EC1000-memory.dmp
memory/4956-356-0x0000000074C00000-0x0000000074C06000-memory.dmp