6ca47c3e4b2b2b1952bba1d201a6777deca4089d9b261c03447190ed5ecf3b7a

Analysis

max time kernel
119s
max time network
126s
platform
windows7_x64
resource
win7-20240220-en
resource tags

arch:x64arch:x86image:win7-20240220-enlocale:en-usos:windows7-x64system
submitted
15-06-2024 13:43

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General

Target

Lossless Scaling/Shaders/ANIME4K_M_6.cso
Size

5KB
MD5

5ed9a904cbaba1578b2e440e12030b6b
SHA1

b828fa3dcc56d4479a1df80291d4ce96a15ee3cc
SHA256

483921a542242dc850da6a8e91e0e089df67b952b8b9e0654aaea6e6e184a2d0
SHA512

2b9e1268060e8c43a327f07d2ea5aeb23bad60e83cf56e52bf8ceb6881132902a5c864a1878f26be03ad1a04698dedd569ee69c5c3966549f3ebf7789599c83f
SSDEEP

96:nlUwSlDKeb07qzohK4fEATWB/zfnVe/pZClZXfobw5j9kfPqvBrPf+UgdqQvfdts:nSlRQ7km8l/4hZClZPow5jCPqvBz+fdg

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-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\cso_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\cso_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.cso	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\.cso\ = "cso_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\cso_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\cso_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\cso_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-2721934792-624042501-2768869379-1000_CLASSES\cso_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
2840	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2840	AcroRd32.exe
2840	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1788 wrote to memory of 2656	1788	cmd.exe	29
PID 1788 wrote to memory of 2656	1788	cmd.exe	29
PID 1788 wrote to memory of 2656	1788	cmd.exe	29
PID 2656 wrote to memory of 2840	2656	rundll32.exe	30
PID 2656 wrote to memory of 2840	2656	rundll32.exe	30
PID 2656 wrote to memory of 2840	2656	rundll32.exe	30
PID 2656 wrote to memory of 2840	2656	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Lossless Scaling\Shaders\ANIME4K_M_6.cso"
1⤵
- Suspicious use of WriteProcessMemory
PID:1788
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\Lossless Scaling\Shaders\ANIME4K_M_6.cso
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2656
- - 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\Lossless Scaling\Shaders\ANIME4K_M_6.cso"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2840

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
229794a1282865ff9114b34fc1344780

SHA1
bb04f01a7491986466d058a6765d97952fa96c7e

SHA256
c7b30461be01ab6a9fc6c01bdd2bf6d8889360dcd4a5e5079354696d5e28d595

SHA512
cece6579e33dc2b4d5a996111455548115980fd4369c0e405e38bf4280319affa429240adea3a3469b50778416b90883405874496cc3a32f5ca5dfb3be73880c

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