Analysis
- max time kernel
147s - max time network
163s - platform
windows10-2004_x64 - resource
win10v2004-20240226-en - resource tags
- submitted
06/04/2024, 22:23
General
- Target COBRA election-notice.pdf.exe
- Size 8.8MB
- Sample240406-2asv6sdd47
- SHA256 17ad92c5d4b0707380de23f0dc97a7d50319d3f332be6a6d9cf30d239d49f744
Score
10/10
Malware Config
Extracted
Family
-
marsstealer
Botnet
-
Default
C2
-
kenesrakishev.net/wp-includes/pomo/po.php
Signatures
- Mars Stealer
An infostealer written in C++ based on other infostealers.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Program crash 1 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\COBRA election-notice.pdf.exe"C:\Users\Admin\AppData\Local\Temp\COBRA election-notice.pdf.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\BETH3DA.exe"C:\Users\Admin\AppData\Local\Temp\Microsoft Visual C++ 2010 x64 Redistributable Setup_10.0.40219\BETH3DA.exe"2⤵
- Executes dropped EXE
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -u -p 3032 -s 16643⤵
- Program crash
-
-
-
C:\Windows\SysWOW64\WerFault.exeC:\Windows\SysWOW64\WerFault.exe -pss -s 404 -p 3032 -ip 30321⤵
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
Loading Replay Monitor...
Downloads
BETH3DA.exe
memory/1788-0-0x0000000000580000-0x0000000000622000-memory.dmp
memory/1788-1-0x0000000074590000-0x0000000074D40000-memory.dmp
memory/1788-2-0x00000000050F0000-0x0000000005100000-memory.dmp
memory/1788-13-0x0000000074590000-0x0000000074D40000-memory.dmp
memory/3032-11-0x0000000000400000-0x000000000043D000-memory.dmp
memory/3032-21-0x0000000000400000-0x000000000043D000-memory.dmp