Analysis
- max time kernel
141s - max time network
145s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
04/04/2024, 01:06
General
- Target Gammadyne Mailer.exe
- Size 668KB
- Sample240404-bf3pfsae47
- SHA256 b7737850b4f9843c60a23ca39b81fecdb60a04fbcd5839326f854f0a092f95c5
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\Gammadyne Mailer.exe"C:\Users\Admin\AppData\Local\Temp\Gammadyne Mailer.exe"1⤵
- Checks computer location settings
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\.exe"C:\Users\Admin\AppData\Local\Temp\.exe"2⤵
- Executes dropped EXE
-
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
.exe
memory/4960-0-0x0000000074670000-0x0000000074E20000-memory.dmp
memory/4960-1-0x0000000000840000-0x00000000008EC000-memory.dmp
memory/4960-2-0x0000000002C90000-0x0000000002CA0000-memory.dmp
memory/4960-13-0x0000000074670000-0x0000000074E20000-memory.dmp
memory/5080-12-0x0000000000400000-0x000000000043D000-memory.dmp