2a3c5075363be6ad673b7c6daca4acfbf14c537e3951b784f8f24ebc39352cb0

Analysis

max time kernel
57s
max time network
38s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
26-11-2022 08:28

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General

Target

2a3c5075363be6ad673b7c6daca4acfbf14c537e3951b784f8f24ebc39352cb0.rar
Size

207KB
MD5

4a46e340e13d0cdb5a45a75a35845e34
SHA1

2eba7746c710ab298c4195c0e6985c0cf96c9113
SHA256

2a3c5075363be6ad673b7c6daca4acfbf14c537e3951b784f8f24ebc39352cb0
SHA512

0f4a40e21fdfa01dfeec9048885fe1a146e6c55ef404215f0d860511be13a4495e64ae3804346ab51a684db0f4ca569bcad1f3e0dcc6348e759d0ed594c6856f
SSDEEP

6144:YPEMEfg0R1lKQQxlf4JZr/FXhdPhm2GqNamJ7NfStV:PMeg4lPE4JlJhdpmYPJ7NfY

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

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3385717845-2518323428-350143044-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

1356 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

1356 vlc.exe

Suspicious use of FindShellTrayWindow 18 IoCs

Processes:

vlc.exe

pid	process
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe

Suspicious use of SendNotifyMessage 17 IoCs

Processes:

vlc.exe

pid	process
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe
1356	vlc.exe

Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

1356 vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2024 wrote to memory of 556	2024	cmd.exe	rundll32.exe
PID 2024 wrote to memory of 556	2024	cmd.exe	rundll32.exe
PID 2024 wrote to memory of 556	2024	cmd.exe	rundll32.exe
PID 556 wrote to memory of 1356	556	rundll32.exe	vlc.exe
PID 556 wrote to memory of 1356	556	rundll32.exe	vlc.exe
PID 556 wrote to memory of 1356	556	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\2a3c5075363be6ad673b7c6daca4acfbf14c537e3951b784f8f24ebc39352cb0.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:2024
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\2a3c5075363be6ad673b7c6daca4acfbf14c537e3951b784f8f24ebc39352cb0.rar
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:556
- - C:\Program Files\VideoLAN\VLC\vlc.exe
    "C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\2a3c5075363be6ad673b7c6daca4acfbf14c537e3951b784f8f24ebc39352cb0.rar"
    3⤵
    - Suspicious behavior: AddClipboardFormatListener
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of FindShellTrayWindow
    - Suspicious use of SendNotifyMessage
    - Suspicious use of SetWindowsHookEx
    PID:1356

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

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Downloads

memory/556-76-0x0000000000000000-mapping.dmp

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memory/1356-81-0x0000000000000000-mapping.dmp

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memory/2024-54-0x000007FEFC2E1000-0x000007FEFC2E3000-memory.dmp

Filesize
8KB

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