eb4a7d75e1661dc1d9e158317a788eaf1c280da115c0c78662d0cba514b1e59b

Analysis

max time kernel
214s
max time network
100s
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

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General

Target

Setup/Locales/de.pak
Size

326KB
MD5

14f8f2f240b301d114f5b4e4ab5b8e0a
SHA1

0bcb1d2615e33eade38b2e3363abc1dea1151755
SHA256

f4d2c292d2ffc4e75e1064f1829db1d8d4d13a3d96aa3548b9bbebdde338f9b5
SHA512

05f86eb4dad977778ae4ab4f748e0798aa20464c68afdc86cebed8e485a0b8456549a6a3d0cfb12bbaea42178d9d5bd89968d4d8eef3887df1e172f4feecc993
SSDEEP

6144:F9KU5i98V9o/k00+gQF9TMqgxO6H/XphwlL5mq2URSgq:d5ii9o/k00iF9IHJ/X25qOSgq

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
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_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-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3406023954-474543476-3319432036-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
1532	AcroRd32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

pid	Process
1532	AcroRd32.exe
1532	AcroRd32.exe
1532	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 584 wrote to memory of 700	584	cmd.exe	29
PID 584 wrote to memory of 700	584	cmd.exe	29
PID 584 wrote to memory of 700	584	cmd.exe	29
PID 700 wrote to memory of 1532	700	rundll32.exe	30
PID 700 wrote to memory of 1532	700	rundll32.exe	30
PID 700 wrote to memory of 1532	700	rundll32.exe	30
PID 700 wrote to memory of 1532	700	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\Setup\Locales\de.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:584
- 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\de.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:700
- - 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\de.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:1532

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

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Downloads

memory/584-54-0x000007FEFC421000-0x000007FEFC423000-memory.dmp

Filesize
8KB

Download
memory/1532-82-0x00000000767D1000-0x00000000767D3000-memory.dmp

Filesize
8KB

Download