e8f18a59a3c4a7b9d8f00c203d1c3cecb8b2353d79ba6546e78084796e36f56f

Resubmissions

23/02/2024, 14:34

240223-rxp3paca7y 7

25/01/2024, 16:04

240125-th1a8abbek 10

Analysis

max time kernel
120s
max time network
124s
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/geom.h
Size

2KB
MD5

d9a3336dd4b68ad8ab4f7aa8d88ae1c7
SHA1

219b36d912bca59a1a1c2b4fc22d03d112243468
SHA256

e2709e9a05aa064ca24257cf5729506aa981f718f2f2aa0b0265193286199873
SHA512

f911b7847e35589c5b349b7235149b7a1d0d492a1fa9ab8a2eda99cb981f27b22a36ec247b51570917f63bf2a444a8ee9d5bf482efc74372107f0f2b66907c47

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

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell\edit	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell\open\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell\edit\command	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell\edit\command\ = "%SystemRoot%\\system32\\NOTEPAD.EXE %1"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell\open	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell\open\command	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_Classes\Local Settings	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.h	rundll32.exe
Set value (str)	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\.h\ = "h_auto_file"	rundll32.exe
Key created	\REGISTRY\USER\S-1-5-21-3452737119-3959686427-228443150-1000_CLASSES\h_auto_file\shell	rundll32.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
2716	NOTEPAD.EXE

Suspicious use of WriteProcessMemory 6 IoCs

description	pid	Process	procid_target
PID 868 wrote to memory of 2704	868	cmd.exe	29
PID 868 wrote to memory of 2704	868	cmd.exe	29
PID 868 wrote to memory of 2704	868	cmd.exe	29
PID 2704 wrote to memory of 2716	2704	rundll32.exe	30
PID 2704 wrote to memory of 2716	2704	rundll32.exe	30
PID 2704 wrote to memory of 2716	2704	rundll32.exe	30

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\include\graphviz\geom.h
1⤵
- Suspicious use of WriteProcessMemory
PID:868
- 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\geom.h
  2⤵
  - Modifies registry class
  - Suspicious use of WriteProcessMemory
  PID:2704
- - C:\Windows\system32\NOTEPAD.EXE
    "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\include\graphviz\geom.h
    3⤵
    - Opens file in notepad (likely ransom note)
    PID:2716

Network

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

Windows 7 deprecation

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