e5953af7cf24bd0896a43e962331e0b6a41638ff252d68a91750ba9e5ee0f5b7

Analysis

max time kernel
119s
max time network
127s
platform
windows7_x64
resource
win7-20240419-en
resource tags

arch:x64arch:x86image:win7-20240419-enlocale:en-usos:windows7-x64system
submitted
01-05-2024 23:53

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General

Target

e5953af7cf24bd0896a43e962331e0b6a41638ff252d68a91750ba9e5ee0f5b7.dex
Size

79.0MB
MD5

ce99383631ceeea8a49f59b2f61c4001
SHA1

492de633813fa1fd1f261948b0ea683b335ec616
SHA256

e5953af7cf24bd0896a43e962331e0b6a41638ff252d68a91750ba9e5ee0f5b7
SHA512

d23571d1e63bee0517c807eb8f25dcfb1ed53f74c2d004af3bb753141c0118e22c1e49e7e5b9ff411b6bae9aa38095bab5221a3d42749dbe801495fa6db38cd6
SSDEEP

393216:69AsW8Iz4fPn9c0aueeBi1JN7M2UuqkCFk5hR+/L4+7osQq8175f1/dbR4p6Pvn7:69Ap8gqn9TaaqJlMRFkfRaosQN55RrVj

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
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\dex_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\dex_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\dex_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\dex_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.dex	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\.dex\ = "dex_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\dex_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-481678230-3773327859-3495911762-1000_CLASSES\dex_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2652	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2652	AcroRd32.exe
2652	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2432 wrote to memory of 2756	2432	cmd.exe	29
PID 2432 wrote to memory of 2756	2432	cmd.exe	29
PID 2432 wrote to memory of 2756	2432	cmd.exe	29
PID 2756 wrote to memory of 2652	2756	rundll32.exe	30
PID 2756 wrote to memory of 2652	2756	rundll32.exe	30
PID 2756 wrote to memory of 2652	2756	rundll32.exe	30
PID 2756 wrote to memory of 2652	2756	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\e5953af7cf24bd0896a43e962331e0b6a41638ff252d68a91750ba9e5ee0f5b7.dex
1⤵
- Suspicious use of WriteProcessMemory
PID:2432
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\e5953af7cf24bd0896a43e962331e0b6a41638ff252d68a91750ba9e5ee0f5b7.dex
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2756
- - 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\e5953af7cf24bd0896a43e962331e0b6a41638ff252d68a91750ba9e5ee0f5b7.dex"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2652

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
75714ab6c5e62453d1779073e943e3a7

SHA1
07d4fd53a363e848bc3bd403897beca35e0c6a8f

SHA256
c69ec36e486734466455a81a2479cba95c5b20b51ac64706d88bf6a5171992dc

SHA512
b8ed9326a3dd7065653a02dd778894823fb60948bed9155165a4a25b48c63634fc720f836e85e0c332b8374558d016f1e4b9eb11456751f157c5cd22dfc2700f

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