e8f18a59a3c4a7b9d8f00c203d1c3cecb8b2353d79ba6546e78084796e36f56f

Resubmissions

23-02-2024 14:34

240223-rxp3paca7y 7

25-01-2024 16:04

240125-th1a8abbek 10

Analysis

max time kernel
121s
max time network
127s
platform
windows7_x64
resource
win7-20240221-en
resource tags

arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
submitted
23-02-2024 14:34

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General

Target

include/graphviz/GVRenderData.h
Size

1KB
MD5

a1e203d032345049d7f49c578a11a7de
SHA1

9970a5ab813c5eb32391ef56390c6727c076680d
SHA256

b3aa11404ee808febd739fa0a6bb32cb68b164d90bd20c25bb1812f344133cc4
SHA512

ccb131db05da34a2f1e50021caf8dc39e983dd11d26d9a52616e62688013123bc6dcc6f6ca8bb85e8a22d4325951fba66294ef8473248e36b818417f4d8c6ceb

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 12 IoCs

Processes:

rundll32.exe

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.h	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\edit\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\open	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\.h\ = "h_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\edit	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-330940541-141609230-1670313778-1000_CLASSES\h_auto_file\shell\open\command	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs
ransomware

Processes:

NOTEPAD.EXE

pid process

2500 NOTEPAD.EXE

pid	process
2500	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 1720 wrote to memory of 2580	1720	cmd.exe	rundll32.exe
PID 1720 wrote to memory of 2580	1720	cmd.exe	rundll32.exe
PID 1720 wrote to memory of 2580	1720	cmd.exe	rundll32.exe
PID 2580 wrote to memory of 2500	2580	rundll32.exe	NOTEPAD.EXE
PID 2580 wrote to memory of 2500	2580	rundll32.exe	NOTEPAD.EXE
PID 2580 wrote to memory of 2500	2580	rundll32.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\include\graphviz\GVRenderData.h
1⤵
- Suspicious use of WriteProcessMemory
PID:1720

C:\Windows\system32\rundll32.exe
"C:\Windows\system32\rundll32.exe" C:\Windows\system32\shell32.dll,OpenAs_RunDLL C:\Users\Admin\AppData\Local\Temp\include\graphviz\GVRenderData.h
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2580

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\include\graphviz\GVRenderData.h
3⤵
- Opens file in notepad (likely ransom note)
PID:2500

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

Resubmissions

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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