76a1ff6c0d7827ecd0857e5a9b5298337f232662767abf0f011154c85b6da8ef

Analysis

max time kernel
119s
max time network
120s
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/composite5.vsh
Size

1KB
MD5

d3607ca07f1623409ad8b1514062fa3f
SHA1

d30239816db40ef8af9c2b96511077d1c2cef602
SHA256

3e14e56ea02ec0c24b4c378bb9d27b2e943ab5844d14bcab850bbe75006108be
SHA512

c41d2ac0a435984bbabecedb3b058125386cbb337614596a17df59eae92d0c17610e66b8608de8554ba0d6cceb7d6aa9e1ee7328b87663828964b2e86274504f

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-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\vsh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\vsh_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\vsh_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\vsh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.vsh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\vsh_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.vsh\ = "vsh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\vsh_auto_file\shell	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2304	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2304	AcroRd32.exe
2304	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2156 wrote to memory of 2672	2156	cmd.exe	29
PID 2156 wrote to memory of 2672	2156	cmd.exe	29
PID 2156 wrote to memory of 2672	2156	cmd.exe	29
PID 2672 wrote to memory of 2304	2672	rundll32.exe	30
PID 2672 wrote to memory of 2304	2672	rundll32.exe	30
PID 2672 wrote to memory of 2304	2672	rundll32.exe	30
PID 2672 wrote to memory of 2304	2672	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\shaders\composite5.vsh
1⤵
- Suspicious use of WriteProcessMemory
PID:2156
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\shaders\composite5.vsh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2672
- - 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\composite5.vsh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2304

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
8049f619bd523adfd95c4a16edc6914c

SHA1
ca1b291eb4428696c5f83271e54d5bb44967f3b8

SHA256
05e0727b38b2c4116076f29d71d79369f4a5e572be8b3d2f40b4c18747b4d310

SHA512
dc22242d9d63913c196ad12caa00809c51cb40338e18e1758fd06f371c3126de0eebeb6e683fd6ee35a8b894e5218391ae3eda34b4c7a2ccd887efda7a4c6b91

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