61d6a12a61b3136a89d22eb3d4ee03e5456e64d7c7ada5381142f8e275d52ba9

Analysis

max time kernel
150s
max time network
45s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
29/11/2022, 12:48

Sharing

Copy URL Twitter E-mail

Report Analysis Logs

General

Target

eteyvfyhrefyscymb/wweukckn$galcwksskwjbfuyyre.class
Size

1KB
MD5

fa41e432222ecc94f4081006cb526c6c
SHA1

9961bfc7fa1185744a75f0af4f3e1b67ba0e8d26
SHA256

7f0fc643b6cd4492e458585794186a1f688b72c41b3ce54cdf349504b9c980f7
SHA512

7d26c1d297775b23612a83f3078994872e31bbf370c78c9bf803c739fec968e84c7d76a5c9ec711ef7fe065f374164c365f328b1d562dee7dc2420cbb11ee7e7

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\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
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
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_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-999675638-2867687379-27515722-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	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

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
952	AcroRd32.exe
952	AcroRd32.exe
952	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2012 wrote to memory of 792	2012	cmd.exe	27
PID 2012 wrote to memory of 792	2012	cmd.exe	27
PID 2012 wrote to memory of 792	2012	cmd.exe	27
PID 792 wrote to memory of 952	792	rundll32.exe	28
PID 792 wrote to memory of 952	792	rundll32.exe	28
PID 792 wrote to memory of 952	792	rundll32.exe	28
PID 792 wrote to memory of 952	792	rundll32.exe	28

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\eteyvfyhrefyscymb\wweukckn$galcwksskwjbfuyyre.class
1⤵
- Suspicious use of WriteProcessMemory
PID:2012
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\eteyvfyhrefyscymb\wweukckn$galcwksskwjbfuyyre.class
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:792
- - 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\eteyvfyhrefyscymb\wweukckn$galcwksskwjbfuyyre.class"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:952

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/952-82-0x0000000075E81000-0x0000000075E83000-memory.dmp

Filesize
8KB

Download
memory/2012-54-0x000007FEFB9F1000-0x000007FEFB9F3000-memory.dmp

Filesize
8KB

Download