Analysis
- max time kernel
148s - max time network
152s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
13/10/2023, 02:55
General
- Target 1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5_JC.exe
- Size 517KB
- Sample231013-dee8wabf2v
- SHA256 1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5
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
- Legitimate hosting services abused for malware hosting/C2 1 TTPs
- 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).
- Suspicious behavior: MapViewOfSection 1 IoCs
- Suspicious use of WriteProcessMemory 5 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5_JC.exe"C:\Users\Admin\AppData\Local\Temp\1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5_JC.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:\Users\Admin\AppData\Local\Temp\1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5_JC.exe"C:\Users\Admin\AppData\Local\Temp\1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5_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
memory/2332-17-0x0000000004A40000-0x0000000006598000-memory.dmp
memory/2332-18-0x0000000004A40000-0x0000000006598000-memory.dmp
memory/2332-19-0x0000000077D81000-0x0000000077EA1000-memory.dmp
memory/2332-20-0x0000000074BE0000-0x0000000074BE6000-memory.dmp
memory/3964-21-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3964-22-0x0000000001660000-0x00000000031B8000-memory.dmp
memory/3964-23-0x0000000001660000-0x00000000031B8000-memory.dmp
memory/3964-24-0x0000000077E08000-0x0000000077E09000-memory.dmp
memory/3964-25-0x0000000077E25000-0x0000000077E26000-memory.dmp
memory/3964-26-0x0000000000400000-0x0000000001654000-memory.dmp
memory/3964-27-0x0000000077D81000-0x0000000077EA1000-memory.dmp