76a1ff6c0d7827ecd0857e5a9b5298337f232662767abf0f011154c85b6da8ef

Analysis

max time kernel
119s
max time network
121s
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/composite2.fsh
Size

59KB
MD5

de1189da99d1b54b8bd3080b27d58da6
SHA1

e9ec19c00db748fbe63906843dfe325b842f4f6c
SHA256

2f1d9d881416a5257ee1e82f2cd2ca606b51e22a16927d112c92bbaecf80eee2
SHA512

5f3f6305cda8e806f2e909671a57b7ed7bf8bf56168db9a81882b54f720da33e52e07b6c951ac76247f0f1188d665bdf3cd5a787690efda5486a57ac096aa5d0
SSDEEP

1536:JwG0lMNFavdBOR5KsLmHH609tryxYaYXqme9FAwO:JwnnH

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\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.fsh	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\.fsh\ = "fsh_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\fsh_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\fsh_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\fsh_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\fsh_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\fsh_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3470981204-343661084-3367201002-1000_CLASSES\fsh_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
2748	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2748	AcroRd32.exe
2748	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 2196 wrote to memory of 2336	2196	cmd.exe	29
PID 2196 wrote to memory of 2336	2196	cmd.exe	29
PID 2196 wrote to memory of 2336	2196	cmd.exe	29
PID 2336 wrote to memory of 2748	2336	rundll32.exe	30
PID 2336 wrote to memory of 2748	2336	rundll32.exe	30
PID 2336 wrote to memory of 2748	2336	rundll32.exe	30
PID 2336 wrote to memory of 2748	2336	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\shaders\composite2.fsh
1⤵
- Suspicious use of WriteProcessMemory
PID:2196
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\shaders\composite2.fsh
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2336
- - 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\composite2.fsh"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2748

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
620117afb8a4bd6716180cf4797c971c

SHA1
2b4955fd99735fbfaffdd5257f3674bd496f4c74

SHA256
69320321981d87ab0abb19cf5fba73dbe211520d7606334a85f047a557621682

SHA512
65f5c61e296ff791b823478c1ed6f2a0e5f430f4cec5d3f8b5dafa8819d03e5d6549dc9cda1cc98c28b4461ce0d183046a4c1bdfb0c2f0e482030fd918786334

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