71f5f09ec8f0e4b1296da50a6a4e4e87c10e85aadc1a8261f0c6f2ecde4a5ac5

Analysis

max time kernel
36s
max time network
47s
platform
windows7_x64
resource
win7-20220414-en
submitted
21-05-2022 00:19

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General

Target

71f5f09ec8f0e4b1296da50a6a4e4e87c10e85aadc1a8261f0c6f2ecde4a5ac5.rar
Size

563KB
MD5

929ddd432949a0809329d50896cbd7cc
SHA1

01f6eb2d1a897dbc346cbb713df2dbb85918bf28
SHA256

71f5f09ec8f0e4b1296da50a6a4e4e87c10e85aadc1a8261f0c6f2ecde4a5ac5
SHA512

5e144052f47b123457d346f35af3227546dd9e619f951762ec8184c6edafb2a63e02002be3bcb225a5f72131bbc43909d556b8caa5224e3d9c659d27738d665e

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-1-5-21-2277218442-1199762539-2004043321-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2277218442-1199762539-2004043321-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

1744 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

1744 vlc.exe
Suspicious use of FindShellTrayWindow 7 IoCs

Processes:

vlc.exe

pid process

1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
Suspicious use of SendNotifyMessage 6 IoCs

Processes:

vlc.exe

pid process

1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
1744 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

1744 vlc.exe

pid	process
1744	vlc.exe

pid	process
1744	vlc.exe

pid	process
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe

pid	process
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe
1744	vlc.exe

pid	process
1744	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1064 wrote to memory of 1980	1064	cmd.exe	rundll32.exe
PID 1064 wrote to memory of 1980	1064	cmd.exe	rundll32.exe
PID 1064 wrote to memory of 1980	1064	cmd.exe	rundll32.exe
PID 1980 wrote to memory of 1744	1980	rundll32.exe	vlc.exe
PID 1980 wrote to memory of 1744	1980	rundll32.exe	vlc.exe
PID 1980 wrote to memory of 1744	1980	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\71f5f09ec8f0e4b1296da50a6a4e4e87c10e85aadc1a8261f0c6f2ecde4a5ac5.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1064

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\71f5f09ec8f0e4b1296da50a6a4e4e87c10e85aadc1a8261f0c6f2ecde4a5ac5.rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1980

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\71f5f09ec8f0e4b1296da50a6a4e4e87c10e85aadc1a8261f0c6f2ecde4a5ac5.rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1744

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/1064-54-0x000007FEFC5C1000-0x000007FEFC5C3000-memory.dmp

Filesize
8KB

Download
memory/1744-81-0x0000000000000000-mapping.dmp

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memory/1980-76-0x0000000000000000-mapping.dmp

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