19d156d205df792a4a8c881b2201c561c9f74babc40cdb8ecd7f55d68f3c135b

Analysis

Target

ExeFilter-1.1.2-alpha3/DEMO.bat
Size

40B
MD5

2b34480d75ba452ce0d826d75bcce5f9
SHA1

2c0c0daeb77eea418091fd0b55a9fb1cce30b117
SHA256

f46514b4b88e3af161019ab12d009f2b81a5e7c4234049e0e5b5cf70eccc7258
SHA512

737451a9cf516e596ed8841c759ea7dae3f54f36c639c9e169856a3f7823df82bf8265aaefe6cf371d3aff0446c6191fb188f7f67dd8d54bb761338c4b58a0a8

Score

3^/10

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\py_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\py_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\py_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\py_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\.py	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\.py\ = "py_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\py_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2932610838-281738825-1127631353-1000_CLASSES\py_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

AcroRd32.exe

pid process

584 AcroRd32.exe
Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

584 AcroRd32.exe
584 AcroRd32.exe
584 AcroRd32.exe

pid	process
584	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1920 wrote to memory of 1004	1920	cmd.exe	rundll32.exe
PID 1920 wrote to memory of 1004	1920	cmd.exe	rundll32.exe
PID 1920 wrote to memory of 1004	1920	cmd.exe	rundll32.exe
PID 1004 wrote to memory of 584	1004	rundll32.exe	AcroRd32.exe
PID 1004 wrote to memory of 584	1004	rundll32.exe	AcroRd32.exe
PID 1004 wrote to memory of 584	1004	rundll32.exe	AcroRd32.exe
PID 1004 wrote to memory of 584	1004	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\ExeFilter-1.1.2-alpha3\DEMO.bat"
1⤵
- Suspicious use of WriteProcessMemory
PID:1920

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

memory/584-81-0x0000000000000000-mapping.dmp

Download
memory/584-82-0x0000000076361000-0x0000000076363000-memory.dmp

Filesize
8KB

Download
memory/1004-76-0x0000000000000000-mapping.dmp

Download
memory/1920-54-0x000007FEFBCC1000-0x000007FEFBCC3000-memory.dmp

Filesize
8KB

Download