96349b4ca999a16f0e3b2159c41d25685e3dca999322b3a29b25369a24f63ed1

Analysis

max time kernel
150s
max time network
33s
platform
windows7_x64
resource
win7-20230220-en
resource tags

arch:x64arch:x86image:win7-20230220-enlocale:en-usos:windows7-x64system
submitted
23-03-2023 18:19

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General

Target

themes.json
Size

2KB
MD5

ecc97a512f2bee4c4344a7a4126b5a5b
SHA1

73cd4d3e586b17d307decebd1ba8bea105977e29
SHA256

b5eeb2b5d8656f0399220039f15e50c2566bf13124681f67c65f8b042d8fdc4c
SHA512

4d411ea0b3c67f2b38034fc9c1491dca070801e6521cc7cd8cdf91e2343a7caa7861313445e3d53cbe8dc8f64a0ce8169b191a054536c186dc2d1dcfba25bd18

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 10 IoCs

Processes:

rundll32.exe

description	ioc	process
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\Local Settings\Software\Microsoft\Windows\Shell\MuiCache	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.json\ = "json_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell\Read\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_Classes\Local Settings	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\.json	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell\Read	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3430344531-3702557399-3004411149-1000_CLASSES\json_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

Processes:

AcroRd32.exe

pid process

588 AcroRd32.exe
588 AcroRd32.exe
588 AcroRd32.exe

pid	process
588	AcroRd32.exe
588	AcroRd32.exe
588	AcroRd32.exe

Suspicious use of WriteProcessMemory 7 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1820 wrote to memory of 472	1820	cmd.exe	rundll32.exe
PID 1820 wrote to memory of 472	1820	cmd.exe	rundll32.exe
PID 1820 wrote to memory of 472	1820	cmd.exe	rundll32.exe
PID 472 wrote to memory of 588	472	rundll32.exe	AcroRd32.exe
PID 472 wrote to memory of 588	472	rundll32.exe	AcroRd32.exe
PID 472 wrote to memory of 588	472	rundll32.exe	AcroRd32.exe
PID 472 wrote to memory of 588	472	rundll32.exe	AcroRd32.exe

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\themes.json
1⤵
- Suspicious use of WriteProcessMemory
PID:1820

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\themes.json
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:472

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\themes.json"
3⤵
- Suspicious use of SetWindowsHookEx
PID:588

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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