745176e618244e7f1df960c5ee854ec0a759a595040bea33ca03376a307e1e43

Analysis

max time kernel
150s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
11/04/2023, 19:07

Target

ATUj75dxouYTzPv.torrent
Size

67KB
MD5

96a7ffd48dea544f1bb70429f78ef65d
SHA1

2de677b86cf9342fbbd34deeee7dd0109e661bdc
SHA256

745176e618244e7f1df960c5ee854ec0a759a595040bea33ca03376a307e1e43
SHA512

fc15d8d33019a3aee12c2a1319dd135cb8e8395e999d6f41a1e0588e76170b0300be7f2f94a2e65868f8198a386a1c364fe89766474cb38814565c1031345094
SSDEEP

1536:arYCC0A1A/p8zrl341Vay+HZ0CEOLlorMR4BA3dCF1YXHFRgMV:k8PS2pHflOI3dCSPgMV

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.torrent	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\.torrent\ = "torrent_auto_file"	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\torrent_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\torrent_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\torrent_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\torrent_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\torrent_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3948302646-268491222-1934009652-1000_CLASSES\torrent_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
1756	AcroRd32.exe
1756	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1388 wrote to memory of 1456	1388	cmd.exe	29
PID 1388 wrote to memory of 1456	1388	cmd.exe	29
PID 1388 wrote to memory of 1456	1388	cmd.exe	29
PID 1456 wrote to memory of 1756	1456	rundll32.exe	30
PID 1456 wrote to memory of 1756	1456	rundll32.exe	30
PID 1456 wrote to memory of 1756	1456	rundll32.exe	30
PID 1456 wrote to memory of 1756	1456	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ATUj75dxouYTzPv.torrent
1⤵
- Suspicious use of WriteProcessMemory
PID:1388
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ATUj75dxouYTzPv.torrent
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1456
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\ATUj75dxouYTzPv.torrent"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1756

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact