Analysis
- max time kernel
147s - max time network
151s - platform
windows10-2004_x64 - resource
win10v2004-20231215-en - resource tags
- submitted
16/01/2024, 10:41
General
- Target 5fb1da1d27e51c036e788d171e641819.exe
- Size 49KB
- Sample240116-mrmcdsaabm
- SHA256 00b99ea9c4a00742c356b29dee039c17891eb9cef040aec7842b7c38899622b6
Malware Config
Extracted
-
metasploit
-
encoder/fnstenv_mov
Signatures
- MetaSploit
Detected malicious payload which is part of the Metasploit Framework, likely generated with msfvenom or similar.
- Checks computer location settings 2 TTPs 1 IoCs
Looks up country code configured in the registry, likely geofence.
- Executes dropped EXE 1 IoCs
- UPX packed file 10 IoCs
Detects executables packed with UPX/modified UPX open source packer.
- Adds Run key to start application 2 TTPs 1 IoCs
- Drops file in System32 directory 5 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
- Suspicious use of AdjustPrivilegeToken 4 IoCs
- Suspicious use of WriteProcessMemory 3 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\5fb1da1d27e51c036e788d171e641819.exe"C:\Users\Admin\AppData\Local\Temp\5fb1da1d27e51c036e788d171e641819.exe"1⤵
- Checks computer location settings
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
-
C:\Windows\SysWOW64\cmd.exe"C:\Windows\system32\cmd.exe" /c del "C:\Users\Admin\AppData\Local\Temp\5FB1DA~1.EXE" >> NUL2⤵
-
-
C:\Windows\SysWOW64\msdlli.exeC:\Windows\SysWOW64\msdlli.exe1⤵
- Executes dropped EXE
- Adds Run key to start application
- Drops file in System32 directory
- Suspicious use of AdjustPrivilegeToken
Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
msdlli.exe
msdlli.exe
memory/2940-0-0x0000000000400000-0x0000000000422000-memory.dmp
memory/2940-5-0x0000000000400000-0x0000000000422000-memory.dmp
memory/5056-8-0x0000000000400000-0x0000000000422000-memory.dmp
memory/5056-10-0x0000000000400000-0x0000000000422000-memory.dmp
memory/5056-14-0x0000000000400000-0x0000000000422000-memory.dmp
memory/5056-16-0x0000000000400000-0x0000000000422000-memory.dmp
memory/5056-18-0x0000000000400000-0x0000000000422000-memory.dmp
memory/5056-20-0x0000000000400000-0x0000000000422000-memory.dmp