Analysis
- max time kernel
18s - max time network
153s - platform
windows10-2004_x64 - resource
win10v2004-20230915-en - resource tags
- submitted
13/10/2023, 02:04
General
- Target f26a5adb365053bf4a3729bfbf8864a4ec773888382245ddd8a3a6cc11840511_JC.exe
- Size 437KB
- Sample231013-chf4xaad3s
- SHA256 f26a5adb365053bf4a3729bfbf8864a4ec773888382245ddd8a3a6cc11840511
Score
10/10
Malware Config
Extracted
Family
-
marsstealer
Botnet
-
Default
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
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\f26a5adb365053bf4a3729bfbf8864a4ec773888382245ddd8a3a6cc11840511_JC.exe"C:\Users\Admin\AppData\Local\Temp\f26a5adb365053bf4a3729bfbf8864a4ec773888382245ddd8a3a6cc11840511_JC.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\ProgramData\USOShared\VWQ50RMOZF167.exe"C:\ProgramData\USOShared\VWQ50RMOZF167.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
VWQ50RMOZF167.exe
VWQ50RMOZF167.exe
VWQ50RMOZF167.exe
memory/2520-0-0x00000000007C0000-0x0000000000832000-memory.dmp
memory/2520-10-0x00007FF9DCA70000-0x00007FF9DD531000-memory.dmp
memory/2520-12-0x00007FF9DCA70000-0x00007FF9DD531000-memory.dmp
memory/4576-11-0x0000000000400000-0x000000000043D000-memory.dmp
memory/4576-13-0x0000000000400000-0x000000000043D000-memory.dmp