Analysis
- max time kernel
136s - max time network
108s - platform
windows10-2004_x64 - resource
win10v2004-20240709-en - resource tags
- submitted
29/07/2024, 11:44
General
- Target CEMENTOS-DOC.exe
- Size 60KB
- Sample240729-nwl3vsxapm
- SHA256 994655b2cfd0979f7b96ae1f4423510633a82adf92fa6486dfd2f3243e96618d
Score
10/10
Malware Config
Extracted
Family
-
guloader
C2
-
https://drive.google.com/uc?export=download&id=1LmyqIluFJ5HoNT0VjWSvtPFmVfK-cvxy
xor.base64
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.
- Suspicious use of NtSetInformationThreadHideFromDebugger 1 IoCs
- System Location Discovery: System Language Discovery 1 TTPs 1 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
- Suspicious use of SetWindowsHookEx 1 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\CEMENTOS-DOC.exe"C:\Users\Admin\AppData\Local\Temp\CEMENTOS-DOC.exe"1⤵
- Checks QEMU agent file
- Suspicious use of NtSetInformationThreadHideFromDebugger
- System Location Discovery: System Language Discovery
- Suspicious use of SetWindowsHookEx
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
memory/5020-2-0x0000000002240000-0x000000000224A000-memory.dmp
memory/5020-3-0x00000000773A1000-0x00000000774C1000-memory.dmp
memory/5020-4-0x0000000002240000-0x000000000224A000-memory.dmp