601eabe782aff7a264fb37953d0ff488118936bb1a3e2a23e822d4919783c86c

Analysis

max time kernel
153s
max time network
44s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/10/2022, 00:38

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

a/G.class
Size

1KB
MD5

e5563ccbd26b9b95c810c7174ced2efb
SHA1

ac5c751e6d51ce3f0a3673e2ceecb1ef2d6ee718
SHA256

1fb7f6570f4fb53823f8bda7b29327930eda0d7d4af53d22648bf2a79a173b3d
SHA512

dba3c8e9874fc988d03a3e630fe9a58bd3a89295dea526007c99ae42e5b48846dc9b6f97bf6277f571dcff89c72c23b5cfa9aa93696eb86c444447ff2e344710

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 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\.class\ = "class_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\class_auto_file	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
380	AcroRd32.exe
380	AcroRd32.exe
380	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1492 wrote to memory of 1984	1492	cmd.exe	27
PID 1492 wrote to memory of 1984	1492	cmd.exe	27
PID 1492 wrote to memory of 1984	1492	cmd.exe	27
PID 1984 wrote to memory of 380	1984	rundll32.exe	28
PID 1984 wrote to memory of 380	1984	rundll32.exe	28
PID 1984 wrote to memory of 380	1984	rundll32.exe	28
PID 1984 wrote to memory of 380	1984	rundll32.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\a\G.class
1⤵
- Suspicious use of WriteProcessMemory
PID:1492
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\a\G.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1984
- - C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe
    "C:\Program Files (x86)\Adobe\Reader 9.0\Reader\AcroRd32.exe" "C:\Users\Admin\AppData\Local\Temp\a\G.class"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:380

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

Loading Replay Monitor...

Downloads

memory/380-82-0x0000000075451000-0x0000000075453000-memory.dmp

Filesize
8KB

Download
memory/1492-54-0x000007FEFBD81000-0x000007FEFBD83000-memory.dmp

Filesize
8KB

Download