f8f9d2a20b2b0c1aafc075d51dc7df924601b468ba867422419304ac321a2cb7

Analysis

max time kernel
150s
max time network
48s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
18-03-2023 22:57

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General

Target

wallpaper_engine/assets/effects/blend/effect.json
Size

419B
MD5

f729c42e8be0bac75f8991819ea3e476
SHA1

f7954a3e6671eff365ba021fb4f7b35d121838f1
SHA256

9bfd3ceb343c11998696c1dcc0ae5fc9f3c68f4131876c417fe7bf1791d77c98
SHA512

e994be40848cec9aba115a0bd8d694a679c5da955528d8082753b0c282791a4abeeab4d777512d9314d42d701375c4d4c41f103b057bcc50f1dcd8c865a447f7

Score

3^/10

Malware Config

Signatures

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 9 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\json_auto_file	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.json	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\json_auto_file\shell\Read\command\ = "\"C:\\Program Files (x86)\\Adobe\\Reader 9.0\\Reader\\AcroRd32.exe\" \"%1\""	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3499517378-2376672570-1134980332-1000_CLASSES\json_auto_file\	rundll32.exe

Suspicious use of SetWindowsHookEx 3 IoCs

Processes:

AcroRd32.exe

pid process

1888 AcroRd32.exe
1888 AcroRd32.exe
1888 AcroRd32.exe

pid	process
1888	AcroRd32.exe
1888	AcroRd32.exe
1888	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1508 wrote to memory of 1916	1508	cmd.exe	rundll32.exe
PID 1508 wrote to memory of 1916	1508	cmd.exe	rundll32.exe
PID 1508 wrote to memory of 1916	1508	cmd.exe	rundll32.exe
PID 1916 wrote to memory of 1888	1916	rundll32.exe	AcroRd32.exe
PID 1916 wrote to memory of 1888	1916	rundll32.exe	AcroRd32.exe
PID 1916 wrote to memory of 1888	1916	rundll32.exe	AcroRd32.exe
PID 1916 wrote to memory of 1888	1916	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\wallpaper_engine\assets\effects\blend\effect.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1508

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\wallpaper_engine\assets\effects\blend\effect.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:1916

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\wallpaper_engine\assets\effects\blend\effect.json"
3⤵
- Suspicious use of SetWindowsHookEx
PID:1888

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

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