cf60eacd48c1c27cad4b9d3754e6af6c6a6770748b4111916c53eda44f73b9f5

Analysis

max time kernel
150s
max time network
30s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
20-03-2023 23:02

Target

shaders/glsl/renderchunk.fragment
Size

1KB
MD5

9ea313a725f04a574f9ce8492df15e26
SHA1

960bd868b85324ed2f46c2af663bdb783fb798d6
SHA256

ac9bd0c97fdee3fdc85b0810ae2a402eeae6baf1308bd5208e58e84750b0ebc0
SHA512

20d13c5d116909c5edcec20ae961a1f02d5b8c7a60df770a17cd309348cfe10494f2d4460a51b4f32b5a2fedae5372ae5434d4c9b27b91291cbed14f7c2efb68

Score

3^/10

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Modifies registry class 10 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\fragment_auto_file\	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.fragment\ = "fragment_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\fragment_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\fragment_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.fragment	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\fragment_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\fragment_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\fragment_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Suspicious use of WriteProcessMemory 7 IoCs

description	pid	Process	procid_target
PID 1700 wrote to memory of 1456	1700	cmd.exe	29
PID 1700 wrote to memory of 1456	1700	cmd.exe	29
PID 1700 wrote to memory of 1456	1700	cmd.exe	29
PID 1456 wrote to memory of 1952	1456	rundll32.exe	30
PID 1456 wrote to memory of 1952	1456	rundll32.exe	30
PID 1456 wrote to memory of 1952	1456	rundll32.exe	30
PID 1456 wrote to memory of 1952	1456	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\shaders\glsl\renderchunk.fragment
1⤵
- Suspicious use of WriteProcessMemory
PID:1700
- C:\Windows\system32\rundll32.exe
  "C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\shaders\glsl\renderchunk.fragment
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:1456
- - 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\glsl\renderchunk.fragment"
    3⤵
    - Suspicious use of SetWindowsHookEx
    PID:1952

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

Lateral Movement

Collection

Command and Control

Exfiltration

Impact