867e3f33015a4401d2fe05d3f12be7bb7ba365e8916850a1c055844a178843aa

Analysis

max time kernel
42s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
01-12-2022 14:29

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General

Target

nuevo pedido.docx.rar
Size

852KB
MD5

99eabaf54c28eaf8bc9a910bd27d15bf
SHA1

7dbad624f6ac9dd056cf7b4d7bdcb8c5c6309b4e
SHA256

4b8ac2523efa7356d9f5638ac54a2ebe757f2ff439cbbfe5ca5326328dcc1510
SHA512

8e296126b78d86fc74eaff309ab1e4fc3184d4f9839258c4e47bd7342d6796003ca52acbbc3d9c64c9c7de68be9b7451a8d0f8e6d65e1e3172d42cc3bc8d1792
SSDEEP

24576:+Mp23FDeNJCy9q7BGLKtnoOhhxBGkISM65eqLv:BWD9zrhLn

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-1-5-21-3845472200-3839195424-595303356-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

1300 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

1300 vlc.exe
Suspicious use of FindShellTrayWindow 3 IoCs

Processes:

vlc.exe

pid process

1300 vlc.exe
1300 vlc.exe
1300 vlc.exe
Suspicious use of SendNotifyMessage 2 IoCs

Processes:

vlc.exe

pid process

1300 vlc.exe
1300 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

1300 vlc.exe

pid	process
1300	vlc.exe

pid	process
1300	vlc.exe

pid	process
1300	vlc.exe
1300	vlc.exe
1300	vlc.exe

pid	process
1300	vlc.exe
1300	vlc.exe

pid	process
1300	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1436 wrote to memory of 996	1436	cmd.exe	rundll32.exe
PID 1436 wrote to memory of 996	1436	cmd.exe	rundll32.exe
PID 1436 wrote to memory of 996	1436	cmd.exe	rundll32.exe
PID 996 wrote to memory of 1300	996	rundll32.exe	vlc.exe
PID 996 wrote to memory of 1300	996	rundll32.exe	vlc.exe
PID 996 wrote to memory of 1300	996	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\nuevo pedido.docx.rar"
1⤵
- Suspicious use of WriteProcessMemory
PID:1436

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\nuevo pedido.docx.rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:996

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\nuevo pedido.docx.rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1300

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/996-76-0x0000000000000000-mapping.dmp

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memory/1300-81-0x0000000000000000-mapping.dmp

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memory/1436-54-0x000007FEFB6A1000-0x000007FEFB6A3000-memory.dmp

Filesize
8KB

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