76a1ff6c0d7827ecd0857e5a9b5298337f232662767abf0f011154c85b6da8ef

Analysis

max time kernel
121s
max time network
122s
platform
windows7_x64
resource
win7-20231129-en
resource tags

arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 00:33

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General

Target

shaders/composite6.fsh
Size

5KB
MD5

b3ef3b7eabb824215070aae51f84851f
SHA1

9ffb3ed24d80a898e6d72a93afadf416d0f4cb39
SHA256

4e7695eed4b1873fa490c103f9cb5112fe0e8c6af53874df8025e3fb83811904
SHA512

f0457451f51d81a7c6f098b0645ac316815d8c5bb69f75b342dd4b8d3d729111be8d19197ecac5e56dac0cd13e6c97c32dc09e1a836ebd44507a7e18c81ec29b
SSDEEP

96:Jw+8RyVHr4d91t7xjek4OEuGLumFXPzEgDOc7djVUEk:JwZu0d91tm7CsP6WVUt

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-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.fsh\ = "fsh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\fsh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\fsh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\fsh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\fsh_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\fsh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\.fsh	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3627615824-4061627003-3019543961-1000_CLASSES\fsh_auto_file\shell\Read	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2612	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2612	AcroRd32.exe
2612	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2988 wrote to memory of 2596	2988	cmd.exe	17
PID 2988 wrote to memory of 2596	2988	cmd.exe	17
PID 2988 wrote to memory of 2596	2988	cmd.exe	17
PID 2596 wrote to memory of 2612	2596	rundll32.exe	30
PID 2596 wrote to memory of 2612	2596	rundll32.exe	30
PID 2596 wrote to memory of 2612	2596	rundll32.exe	30
PID 2596 wrote to memory of 2612	2596	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\shaders\composite6.fsh
1⤵
- Suspicious use of WriteProcessMemory
PID:2988
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\shaders\composite6.fsh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2596
- - 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\shaders\composite6.fsh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2612

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

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Downloads

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

Filesize
3KB

MD5
ea9b470947255b9d4576bcba08032b2d

SHA1
ffa707a7f2e652c507fca8a97d19031036396173

SHA256
3bfa7eb896a8333458c0a7fe848fccf0d56684669140d664490393e69655e7d8

SHA512
559b8db55a3bf057a09ac410153b9ad996c47b3ccce06432e4749171bb2506cc0eb9a846c51d6c6a20d120878b7847a88a23bbed69b68f4ebabe3f2c1c3ed11c

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