ec4c4a9fdafd66d72e7b9126954134d29133ac10757f85586d4f899954f5d49e

Analysis

max time kernel
34s
max time network
44s
platform
windows7_x64
resource
win7-20220715-en
resource tags

arch:x64arch:x86image:win7-20220715-enlocale:en-usos:windows7-x64system
submitted
27-07-2022 18:52

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General

Target

ec4c4a9fdafd66d72e7b9126954134d29133ac10757f85586d4f899954f5d49e.rar
Size

7.1MB
MD5

df54c3125186517caab50a4ffef47798
SHA1

1044aab8a2dd1a5e3ae7af4bd612a5ac8eddd81a
SHA256

ec4c4a9fdafd66d72e7b9126954134d29133ac10757f85586d4f899954f5d49e
SHA512

77cffdd55b502682304002df74b04df4c6cd18b050e0521351323f44e9fd7a6265be83d3a92abaf4d1f914632e9a17902378f0e894be6b0b06f52fcdb3054aa1

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-1-5-21-335065374-4263250628-1829373619-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-335065374-4263250628-1829373619-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe

Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

vlc.exe

pid process

1428 vlc.exe
Suspicious behavior: GetForegroundWindowSpam 1 IoCs

Processes:

vlc.exe

pid process

1428 vlc.exe
Suspicious use of FindShellTrayWindow 9 IoCs

Processes:

vlc.exe

pid process

1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
Suspicious use of SendNotifyMessage 8 IoCs

Processes:

vlc.exe

pid process

1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
1428 vlc.exe
Suspicious use of SetWindowsHookEx 1 IoCs

Processes:

vlc.exe

pid process

1428 vlc.exe

pid	process
1428	vlc.exe

pid	process
1428	vlc.exe

pid	process
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe

pid	process
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe
1428	vlc.exe

pid	process
1428	vlc.exe

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1220 wrote to memory of 1536	1220	cmd.exe	rundll32.exe
PID 1220 wrote to memory of 1536	1220	cmd.exe	rundll32.exe
PID 1220 wrote to memory of 1536	1220	cmd.exe	rundll32.exe
PID 1536 wrote to memory of 1428	1536	rundll32.exe	vlc.exe
PID 1536 wrote to memory of 1428	1536	rundll32.exe	vlc.exe
PID 1536 wrote to memory of 1428	1536	rundll32.exe	vlc.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\ec4c4a9fdafd66d72e7b9126954134d29133ac10757f85586d4f899954f5d49e.rar
1⤵
- Suspicious use of WriteProcessMemory
PID:1220

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\ec4c4a9fdafd66d72e7b9126954134d29133ac10757f85586d4f899954f5d49e.rar
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1536

C:\Program Files\VideoLAN\VLC\vlc.exe
"C:\Program Files\VideoLAN\VLC\vlc.exe" --started-from-file "C:\Users\Admin\AppData\Local\Temp\ec4c4a9fdafd66d72e7b9126954134d29133ac10757f85586d4f899954f5d49e.rar"
3⤵
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: GetForegroundWindowSpam
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of SetWindowsHookEx
PID:1428

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/1220-54-0x000007FEFC001000-0x000007FEFC003000-memory.dmp

Filesize
8KB

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memory/1428-81-0x0000000000000000-mapping.dmp

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memory/1536-76-0x0000000000000000-mapping.dmp

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