ca9ebb765d73b6379c2c037f86d2823144137a366bf79a4a974063beff45d55a

Analysis

max time kernel
91s
max time network
113s
platform
windows10-2004_x64
resource
win10v2004-20220414-en
submitted
14/06/2022, 22:13

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General

Target
ca9ebb765d73b6379c2c037f86d2823144137a366bf79a4a974063beff45d55a.vbs
Size 545KB
Sample220614-148caafdcr
SHA256 ca9ebb765d73b6379c2c037f86d2823144137a366bf79a4a974063beff45d55a
MD5 97770c143d6f911ad2fb667089f3254b
SHA1 eb2be9136ecad2479b0f8348ce154d48f6c89d25
SHA512 51962e2f84cb1a753268c4ff79a166d754c7d13caaa41d53e1119999a14774721fab4cd9fb05dbf99913db42c9e0b16061685b6945159892ade604821efb734a
MD5 SHA1 SHA512

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 1 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

description	pid	pid_target	Process	procid_target
Parent C:\Windows\system32\wbem\wmiprvse.exe is not expected to spawn this process	4420	1004	regsvr32.exe	35

Loads dropped DLL 1 IoCs

pid	Process
720	regsvr32.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
4168	WScript.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4420 wrote to memory of 720	4420	regsvr32.exe	83
PID 4420 wrote to memory of 720	4420	regsvr32.exe	83
PID 4420 wrote to memory of 720	4420	regsvr32.exe	83

C:\Windows\System32\WScript.exe
"C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\ca9ebb765d73b6379c2c037f86d2823144137a366bf79a4a974063beff45d55a.vbs"
1⤵
- Suspicious use of FindShellTrayWindow
PID:4168

C:\Windows\system32\regsvr32.exe
regsvr32.exe -s C:\Users\Admin\AppData\Local\Temp\BVKQBhyq.txt
1⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:4420
- C:\Windows\SysWOW64\regsvr32.exe
  -s C:\Users\Admin\AppData\Local\Temp\BVKQBhyq.txt
  2⤵
  - Loads dropped DLL
  PID:720

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

BVKQBhyq.txt

Path C:\Users\Admin\AppData\Local\Temp\BVKQBhyq.txt
Size 138KB
SHA256 c1cbc33ffd320ea7657a732db883c989370e501fd902dcabfc8a1924b9e4d16b
MD5 ea193f350cbcdd48d5bd55e7ea934838
SHA1 b22ca46d1da866f4675916580cf2e8cb690f984b
SHA512 b84dec2a5a9f01d051021018e3f67fc545c11b1d3aec329e95495d411fa7d761feac66034eeea33974260b8c9974111897a51fb50bd68ec71e507d4bcdc22e65
SSDEEP 1536:bd8MIMZT8M4FWScld2H+uc79phaLRgOzl3OZdmzZZ/NpsCB3JDk5Wvals:bybMF8h0PZ8WOzZkqZZFpsCZfv
MD5 SHA1 SHA512 SSDEEP

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