Analysis
- max time kernel
346s - max time network
347s - platform
windows10-2004_x64 - resource
win10v2004-20221111-en - resource tags
- submitted
04/12/2022, 15:16
General
- Target file.exe
- Size 3.4MB
- Sample221204-snf9vsah95
- SHA256 9c172339a4c308869567a6b15aad0e0b00635fd72dcc067cfeb8e300ac630afe
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
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C:\Users\Admin\AppData\Local\Temp\is-2BU8U.tmp\is-JO993.tmp"C:\Users\Admin\AppData\Local\Temp\is-2BU8U.tmp\is-JO993.tmp" /SL4 $C01CE "C:\Users\Admin\AppData\Local\Temp\file.exe" 3367295 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
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Network
MITRE ATT&CK Enterprise v6
Replay Monitor
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Downloads
PrintFolders.exe
PrintFolders.exe
is-JO993.tmp
is-JO993.tmp
_iscrypt.dll
memory/3056-132-0x0000000000400000-0x0000000000413000-memory.dmp
memory/3056-137-0x0000000000400000-0x0000000000413000-memory.dmp
memory/4596-142-0x0000000000400000-0x00000000017C6000-memory.dmp