f08e988868a2471178c8c1c432f1691dd48f2ca976a935958a233621b80b679c

Resubmissions

14/02/2023, 14:03

230214-rcwpqsdh681

14/02/2023, 14:02

230214-rchg4sdh641

14/02/2023, 14:00

230214-rbfbcsdh553

Analysis

max time kernel
54s
max time network
30s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
14/02/2023, 14:00

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General

Target
uozqIDJQikBkuDxDgluuWeb220.prx
Size 475KB
Sample230214-rbfbcsdh55
SHA256 f08e988868a2471178c8c1c432f1691dd48f2ca976a935958a233621b80b679c
MD5 e5d8e05ba590d7240569ce05514b3377
SHA1 2fc78531c797ca0ee25f1ac06bd576e446fb53d4
SHA512 062332bc091a3b5acdbc27cee681276507081231c78106af628e60ec024b89c967b1574b740c708777d50853dcb779e78ce6d56b4c8cd0fe04d8f2cc191c1d31
SSDEEP 12288:aeZZHKG4zspGLakaaq9oWdNvLLpL5VwpKY2f6aXV:awHj4zHiaTWPBIpRD+
MD5 SHA1 SHA512 SSDEEP

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

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

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
688	NOTEPAD.EXE

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
292	rundll32.exe

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 1756 wrote to memory of 292	1756	cmd.exe	29
PID 1756 wrote to memory of 292	1756	cmd.exe	29
PID 1756 wrote to memory of 292	1756	cmd.exe	29
PID 292 wrote to memory of 688	292	rundll32.exe	30
PID 292 wrote to memory of 688	292	rundll32.exe	30
PID 292 wrote to memory of 688	292	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\uozqIDJQikBkuDxDgluuWeb220.prx
1⤵
- Suspicious use of WriteProcessMemory
PID:1756
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\uozqIDJQikBkuDxDgluuWeb220.prx
  2⤵
  - Modifies registry class
  - Suspicious behavior: GetForegroundWindowSpam
  - Suspicious use of WriteProcessMemory
  PID:292
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\uozqIDJQikBkuDxDgluuWeb220.prx
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:688

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/1756-54-0x000007FEFBB31000-0x000007FEFBB33000-memory.dmp

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