eb4a7d75e1661dc1d9e158317a788eaf1c280da115c0c78662d0cba514b1e59b

Analysis

max time kernel
217s
max time network
84s
platform
windows7_x64
resource
win7-20221111-en
resource tags

arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
submitted
04/02/2023, 21:09

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

Setup/Locales/fi.pak
Size

291KB
MD5

a14eb6a83d450b6cb446000531905bb4
SHA1

d189aebc78a6a5ae0467d8681e460b49cf55f357
SHA256

304302bfed0f9f8a45439d86ee13d96060a3369ebf821ffa4fd779dc07f75080
SHA512

f36184300460185bc9a6418d56d3648b48b438b2a35a7dd0929a6a5ab096636ad4cf4811a6bf6b5bed78049a0671e1f471d24df6c8625e5b3c931fd6b87c1403
SSDEEP

6144:OgEzuIxpVNqWOEInULq53+o1E918PnRm0qX1w5:OgEaPR53+kE918Pp

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-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-1214520366-621468234-4062160515-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1728	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1728	AcroRd32.exe
1728	AcroRd32.exe
1728	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 572 wrote to memory of 1928	572	cmd.exe	29
PID 572 wrote to memory of 1928	572	cmd.exe	29
PID 572 wrote to memory of 1928	572	cmd.exe	29
PID 1928 wrote to memory of 1728	1928	rundll32.exe	30
PID 1928 wrote to memory of 1728	1928	rundll32.exe	30
PID 1928 wrote to memory of 1728	1928	rundll32.exe	30
PID 1928 wrote to memory of 1728	1928	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\Locales\fi.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:572
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Setup\Locales\fi.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1928
- - 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\Setup\Locales\fi.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1728

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/572-54-0x000007FEFBF61000-0x000007FEFBF63000-memory.dmp

Filesize
8KB

Download
memory/1728-82-0x0000000076771000-0x0000000076773000-memory.dmp

Filesize
8KB

Download