20ecc8d6a8738b7dc3bdd19c19c4348cb4206b4e7368d253d5516ccf07e90093

Analysis

max time kernel
122s
max time network
134s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 08:51

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

locales/ca.pak
Size

384KB
MD5

0312c87b6436e733a037bfb3084f7550
SHA1

e3f30b8f3bfc8ddbf4b8f85f845733ed5ac8c632
SHA256

b6c895fbca90c36ae2cfefefda989922162a2cc259603fbca066f0cfbf43c4ff
SHA512

24b7780211b9dcaf7cbe3915851c7b873562e0cff022c29ca1b4e159b9da152b517305f81dd33712a0224fc3b77e594405e432fe5eecf29b7a4f83f441d6905e
SSDEEP

12288:L0s8rijIs3cejEYBCqol3nbhj+YbHQluSwWwXiMjdLbpuQRBtryBiGIle3nei302:L0sLm+JzFMNSGhrKU5qzEK

Score

3^/10

Malware Config

Signatures

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Modifies registry class 9 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3787592910-3720486031-2929222812-1000_CLASSES\pak_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2664	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2664	AcroRd32.exe
2664	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2208 wrote to memory of 2800	2208	cmd.exe	29
PID 2208 wrote to memory of 2800	2208	cmd.exe	29
PID 2208 wrote to memory of 2800	2208	cmd.exe	29
PID 2800 wrote to memory of 2664	2800	rundll32.exe	30
PID 2800 wrote to memory of 2664	2800	rundll32.exe	30
PID 2800 wrote to memory of 2664	2800	rundll32.exe	30
PID 2800 wrote to memory of 2664	2800	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2208
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\locales\ca.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2800
- - 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\locales\ca.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

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

C:\Users\Admin\AppData\Roaming\Adobe\Acrobat\9.0\SharedDataEvents

Filesize
3KB

MD5
0a8f7ccb32b29dca7d415a52cd1f8b4a

SHA1
27da999d73c6ff1ba5de1eaf5092f0a68fb92195

SHA256
4c00c561013bf50362ad623596552df80259389fb2ede559d62f1ba5dca721d7

SHA512
a92945c4e9ffd276f4d0634c2a76de047523f4a7bad8bb8e9250c5d8a9b983e2589590dfa5f93417b14d3b04d55be6823c9688400717104f2e9b029f61f0c558

Download Submit