894de5d02d14bf7a1ea6bbcd86378a83d4418f7002b01812c47212ee4ee70390

Analysis

max time kernel
117s
max time network
131s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
22/02/2024, 21:14

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General

Target

resources.pak
Size

5.2MB
MD5

7971a016aed2fb453c87eb1b8e3f5eb2
SHA1

92b91e352be8209fadcf081134334dea147e23b8
SHA256

9cfd5d29cde3de2f042e5e1da629743a7c95c1211e1b0b001e4eebc0f0741e06
SHA512

42082ac0c033655f2edae876425a320d96cdaee6423b85449032c63fc0f7d30914aa3531e65428451c07912265b85f5fee2ed0bbdb362994d3a1fa7b14186013
SSDEEP

98304:/Zgm9tHEEIcjWbEvKfwa2sEJFz993CNh1QeHQF5qrwrw5z0uxRRrY2kuDYj9ds:RgAtkEx4EKfatyNhHwFkkrw5IcRRtkFs

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-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pak	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.pak\ = "pak_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\pak_auto_file\shell\Read	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_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
2512	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2512	AcroRd32.exe
2512	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2772 wrote to memory of 2556	2772	cmd.exe	29
PID 2772 wrote to memory of 2556	2772	cmd.exe	29
PID 2772 wrote to memory of 2556	2772	cmd.exe	29
PID 2556 wrote to memory of 2512	2556	rundll32.exe	30
PID 2556 wrote to memory of 2512	2556	rundll32.exe	30
PID 2556 wrote to memory of 2512	2556	rundll32.exe	30
PID 2556 wrote to memory of 2512	2556	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\resources.pak
1⤵
- Suspicious use of WriteProcessMemory
PID:2772
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\resources.pak
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2556
- - 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\resources.pak"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2512

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

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Downloads

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

Filesize
3KB

MD5
c057f3daef3de8e7f7eee358432d41d2

SHA1
d83d0d9f10a6fa4a7f1d768965e1b5ab99952eac

SHA256
c1ddfd46d47a6c6c2fa0bec600f65cda242976380970f15e0ea9c0548a476577

SHA512
4d374ee5fc9e247e6396f3fccbf86b02755367c95a46f6e72ce0378be7e8781f23a74e5c8b0e40d9ebfb28cd972ceff62e7dee2ad54d4aff2edb682c031b6488

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