6ca47c3e4b2b2b1952bba1d201a6777deca4089d9b261c03447190ed5ecf3b7a

Analysis

max time kernel
120s
max time network
127s
platform
windows7_x64
resource
win7-20240611-en
resource tags

arch:x64arch:x86image:win7-20240611-enlocale:en-usos:windows7-x64system
submitted
15-06-2024 13:43

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General

Target

Lossless Scaling/Shaders/ANIME4K_L_3.cso
Size

16KB
MD5

1b6a8ffb9c9f877a4f959d189d19e23d
SHA1

fb16289880af3c2630f8751b15edd4a188a184bb
SHA256

df0900d18b17b38c3594a903ba05146785dfefe6b68fd5a0bcad4179c710a66b
SHA512

12fcda09a1337c8d3c41c075e2cb674e62a5d43d9abb79e38e097a06645d362e4c9850706aecc9e5c314f847a6e7e12baae2068140a85d0d9caf85b8ab34f1ad
SSDEEP

192:Dp173wv0/c1YdGGB1U2s3LmEtZlgVL7KmB6KtCIQByydkeUzgWyPkZkLbOLYYm:DP81OvB9EtmVjrgWW

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-1-5-21-39690363-730359138-1046745555-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.cso	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\cso_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\cso_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\cso_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\cso_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\cso_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\cso_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-39690363-730359138-1046745555-1000_CLASSES\.cso\ = "cso_auto_file"	rundll32.exe

Suspicious behavior: GetForegroundWindowSpam 1 IoCs

pid	Process
2876	AcroRd32.exe

Suspicious use of SetWindowsHookEx 2 IoCs

pid	Process
2876	AcroRd32.exe
2876	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 840 wrote to memory of 2664	840	cmd.exe	29
PID 840 wrote to memory of 2664	840	cmd.exe	29
PID 840 wrote to memory of 2664	840	cmd.exe	29
PID 2664 wrote to memory of 2876	2664	rundll32.exe	31
PID 2664 wrote to memory of 2876	2664	rundll32.exe	31
PID 2664 wrote to memory of 2876	2664	rundll32.exe	31
PID 2664 wrote to memory of 2876	2664	rundll32.exe	31

C:\Windows\system32\cmd.exe
cmd /c "C:\Users\Admin\AppData\Local\Temp\Lossless Scaling\Shaders\ANIME4K_L_3.cso"
1⤵
- Suspicious use of WriteProcessMemory
PID:840
- 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_L_3.cso
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2664
- - 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_L_3.cso"
    3⤵
    - Suspicious behavior: GetForegroundWindowSpam
    - Suspicious use of SetWindowsHookEx
    PID:2876

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
749f3b83b14ba0a3839ab017413987df

SHA1
1ab5d6c1db692ec4a564261361af546b767beaf6

SHA256
8d186be9e8265f81d040e9a473d92624bb92aa72807819851a9d7dc75800a9ef

SHA512
0f8e015896fc5e2211b19023f7a992c55b9d2622299d756234850354d7622b7943b6cc98c2b3d2347668e72af5ad1cd96a9525b175434996c64875684d6080ab

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