Analysis
- max time kernel
150s - max time network
157s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
12/10/2023, 23:09
General
- Target 1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5.exe
- Size 517KB
- Sample231012-25dpqsgc46
- 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.exe"C:\Users\Admin\AppData\Local\Temp\1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5.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.exe"C:\Users\Admin\AppData\Local\Temp\1b144c08fe6d2f1233097067e5957b097a990154946e3cd359271db5aac1d4d5.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/4780-17-0x0000000005220000-0x0000000006D78000-memory.dmp
memory/4780-18-0x0000000005220000-0x0000000006D78000-memory.dmp
memory/4780-19-0x0000000076E81000-0x0000000076FA1000-memory.dmp
memory/4780-20-0x0000000073CE0000-0x0000000073CE6000-memory.dmp
memory/4948-21-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4948-22-0x0000000001660000-0x00000000031B8000-memory.dmp
memory/4948-23-0x0000000001660000-0x00000000031B8000-memory.dmp
memory/4948-24-0x0000000076F08000-0x0000000076F09000-memory.dmp
memory/4948-25-0x0000000076F25000-0x0000000076F26000-memory.dmp
memory/4948-35-0x0000000000400000-0x0000000001654000-memory.dmp
memory/4948-36-0x0000000076E81000-0x0000000076FA1000-memory.dmp