76a1ff6c0d7827ecd0857e5a9b5298337f232662767abf0f011154c85b6da8ef

Analysis

max time kernel
122s
max time network
128s
platform
windows7_x64
resource
win7-20231215-en
resource tags

arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
submitted
09/01/2024, 00:33

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General

Target

shaders/composite5.fsh
Size

11KB
MD5

d153cb061e5f84fff281ada5bd5a0abd
SHA1

6d3fe373ad97062d0d090d60b9784a8b0a6ec31c
SHA256

df534893da49974cabccc30daddb9cb3e2bfe7be5f32ce2aed4e111c4c29e492
SHA512

a47ec8d0263ec8b840f84c46c3a8e515e06ec46a9b85a7f9fe7355b62b874c6d6f5cfcdea83d3e05613c6d050774be77f37a943ffd95ffe55373f86c46a05992
SSDEEP

192:JwZBawLjdrWYrobr2zfLLpHXHiz7gg1rETBwGMD77T:JwZw0j9WYrobr2zDdX47jEa7

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-1-5-21-3427588347-1492276948-3422228430-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\fsh_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\fsh_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_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-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\fsh_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.fsh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\.fsh\ = "fsh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\fsh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3427588347-1492276948-3422228430-1000_CLASSES\fsh_auto_file\shell\Read\command	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 2448 wrote to memory of 2292	2448	cmd.exe	29
PID 2448 wrote to memory of 2292	2448	cmd.exe	29
PID 2448 wrote to memory of 2292	2448	cmd.exe	29
PID 2292 wrote to memory of 2664	2292	rundll32.exe	30
PID 2292 wrote to memory of 2664	2292	rundll32.exe	30
PID 2292 wrote to memory of 2664	2292	rundll32.exe	30
PID 2292 wrote to memory of 2664	2292	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\shaders\composite5.fsh
1⤵
- Suspicious use of WriteProcessMemory
PID:2448
- 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.fsh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2292
- - 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.fsh"
    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

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Downloads

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

Filesize
3KB

MD5
0b7901f972108c2320b290cb78c0a51f

SHA1
6a71c1be16f1ed1cb86b2411388b602f6be3ffc2

SHA256
48aa80cc26fc81125d32e3e80fef7baab557e15fcc6d291d63b0deae72ed404a

SHA512
c60f6f1b6699929f53b50522441a3cd98148b01a0904b892e4e22d7532ce29c9b8c0d562c15d782412426bd42ed44fef2e3ffd9051efaa913d691058229aff6d

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