Analysis
- max time kernel
90s - max time network
154s - platform
windows10-2004_x64 - resource
win10v2004-20220812-en - resource tags
- submitted
21/11/2022, 10:32
General
- Target file.exe
- Size 1.3MB
- Sample221121-mkyrvaeh66
- SHA256 5f481aff11c34f58b7dea44fe59a3311560bc9deae9afc8de4e10b344cdfd846
Score
8/10
Malware Config
Signatures
- Executes dropped EXE 2 IoCs
- Loads dropped DLL 1 IoCs
- Checks installed software on the system 1 TTPs
Looks up Uninstall key entries in the registry to enumerate software on the system.
- Drops file in Program Files directory 9 IoCs
- Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.
- Suspicious use of WriteProcessMemory 6 IoCs
Processes
-
C:\Users\Admin\AppData\Local\Temp\file.exe"C:\Users\Admin\AppData\Local\Temp\file.exe"1⤵
- Suspicious use of WriteProcessMemory
-
C:\Users\Admin\AppData\Local\Temp\is-LTU2E.tmp\is-JTFJS.tmp"C:\Users\Admin\AppData\Local\Temp\is-LTU2E.tmp\is-JTFJS.tmp" /SL4 $80028 "C:\Users\Admin\AppData\Local\Temp\file.exe" 1083831 517122⤵
- Executes dropped EXE
- Loads dropped DLL
- Drops file in Program Files directory
- Suspicious use of WriteProcessMemory
-
C:\Program Files (x86)\PrintFolders\PrintFolders.exe"C:\Program Files (x86)\PrintFolders\PrintFolders.exe"3⤵
- Executes dropped EXE
-
-
Network
MITRE ATT&CK Enterprise v6
Replay Monitor
Loading Replay Monitor...
Downloads
PrintFolders.exe
PrintFolders.exe
_iscrypt.dll
is-JTFJS.tmp
is-JTFJS.tmp
memory/2228-142-0x0000000000400000-0x000000000137F000-memory.dmp
memory/2228-144-0x0000000000400000-0x000000000137F000-memory.dmp
memory/4684-132-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4684-137-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4684-143-0x0000000000400000-0x0000000000413000-memory.dmp