d0a308cf2654dcb6507295b09704c183ff81efd2d9ad213b44a0fdcb26b5edb3

Analysis

max time kernel
31s
max time network
34s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
14/02/2023, 10:07

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

istx64f.rar
Size

6.9MB
MD5

fdf973533459d2ef7d83f4f36e76a55e
SHA1

ef414c7901487098c99cfd6b3f9a53c9996d13b6
SHA256

00b7fa24222238325940b80b949d336f4b0c9a947940307d3878d61e4cb557da
SHA512

3fbf2e29c8ede5229942e3415b4495501b9e56b8b7de5372c27b3ab7a9f26207dfcbd29cf4a1453d6a0d026acd85a20c967cfa3adec52300b03c4a117a0c8ca0
SSDEEP

196608:ZoZCXktvsxY/K52LVLq/rG3YMFlcfo4SJoGsy:ZoZGovsxSKgLVLq/uJDcfovL

Score

3^/10

Malware Config

Signatures

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 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_Classes\Local Settings	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

pid	Process
780	vlc.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
780	vlc.exe

Suspicious use of FindShellTrayWindow 9 IoCs

pid	Process
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe

Suspicious use of SendNotifyMessage 8 IoCs

pid	Process
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe
780	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

pid	Process
780	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1996 wrote to memory of 568	1996	cmd.exe	29
PID 1996 wrote to memory of 568	1996	cmd.exe	29
PID 1996 wrote to memory of 568	1996	cmd.exe	29
PID 568 wrote to memory of 780	568	rundll32.exe	30
PID 568 wrote to memory of 780	568	rundll32.exe	30
PID 568 wrote to memory of 780	568	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\istx64f.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1996
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\istx64f.rar
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:568
- - C:\Program Files\VideoLAN\VLC\vlc.exe
    "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\istx64f.rar"
    3⤵
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of SetWindowsHookEx
    PID:780

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

memory/1996-54-0x000007FEFBBC1000-0x000007FEFBBC3000-memory.dmp

Filesize
8KB

Download