e8f18a59a3c4a7b9d8f00c203d1c3cecb8b2353d79ba6546e78084796e36f56f

Resubmissions

23-02-2024 14:34

240223-rxp3paca7y 7

25-01-2024 16:04

240125-th1a8abbek 10

Analysis

max time kernel
122s
max time network
129s
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/cdt.h
Size

10KB
MD5

dc01d3bd3ff84be7470b319574472922
SHA1

a97a5bdcf53363f611f014edecf2798361b60b02
SHA256

613df36c43b370d312d5fe00980b088cc2459412db5c50d3616fc93f0d47a11c
SHA512

3f238d58ca91c00cc8e79c431930dd2f7ad254162d843ce3f5cfc980b5f546d0404f2f11a9c0b9a888ff30f2edcb7acd128511a7c54998557b69bc5795581898
SSDEEP

192:xBTkxMZj+xkHBdoAadGqq7ksdErI8hErIfJgvgvgfg0gpglghgagNgKgygBgNgwb:xB4xMJ+xWBdoHdpH2EbhEwJgvgvgfg0n

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-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\.h	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell\open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\.h\ = "h_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell\edit	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_CLASSES\h_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-778096762-2241304387-192235952-1000_Classes\Local Settings	rundll32.exe

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

Processes:

NOTEPAD.EXE

pid process

2404 NOTEPAD.EXE

pid	process
2404	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

Processes:

cmd.exerundll32.exe

description	pid	process	target process
PID 2816 wrote to memory of 2640	2816	cmd.exe	rundll32.exe
PID 2816 wrote to memory of 2640	2816	cmd.exe	rundll32.exe
PID 2816 wrote to memory of 2640	2816	cmd.exe	rundll32.exe
PID 2640 wrote to memory of 2404	2640	rundll32.exe	NOTEPAD.EXE
PID 2640 wrote to memory of 2404	2640	rundll32.exe	NOTEPAD.EXE
PID 2640 wrote to memory of 2404	2640	rundll32.exe	NOTEPAD.EXE

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\include\graphviz\cdt.h
1⤵
- Suspicious use of WriteProcessMemory
PID:2816

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\cdt.h
2⤵
- Modifies registry class
- Suspicious use of WriteProcessMemory
PID:2640

C:\Windows\system32\NOTEPAD.EXE
"C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\include\graphviz\cdt.h
3⤵
- Opens file in notepad (likely ransom note)
PID:2404

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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