fd0544bdeb691b88a388b2a51da072c4de37b5f7d9af2a1948d45aed755a80a2

Analysis

max time kernel
599s
max time network
444s
platform
windows10-2004_x64
resource
win10v2004-20240426-en
resource tags

arch:x64arch:x86image:win10v2004-20240426-enlocale:en-usos:windows10-2004-x64system
submitted
08/06/2024, 16:39

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General

Target
blxstealer.pyc
Size 40KB
Sample240608-t58acadd4t
SHA256 429107a9b3716479f48147c1de776bb5e41d8a29de248893378e9483e1d70d96
MD5 f91a2cad1ee847984dfde520d8dfb693
SHA1 10d295589a036c1c8ba85db9b6067f381dc44603
SHA512 8c9fbf28ae1134cc549356e4938278d1d77981c4a52e4170f13da7603a508ee05a01464764f806144f8d1a914f910b78932d7025b37fc040cc0dc94b1323542e
SSDEEP 768:zUq+ewxN8R6PjYHA1LgKoX3d7bCsmySr5VUIHrseH53A2UcVAQnb0RwC:DKuRqt2ksmywVlflUcOQQR9
MD5 SHA1 SHA512 SSDEEP

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 2 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000_Classes\Local Settings	cmd.exe
Key created	\REGISTRY\USER\S-1-5-21-4018855536-2201274732-320770143-1000_Classes\Local Settings	OpenWith.exe

Opens file in notepad (likely ransom note) 1 IoCs

ransomware

pid	Process
4484	NOTEPAD.EXE

Suspicious use of FindShellTrayWindow 2 IoCs

pid	Process
4484	NOTEPAD.EXE
4484	NOTEPAD.EXE

Suspicious use of SetWindowsHookEx 13 IoCs

pid	Process
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe
3632	OpenWith.exe

Suspicious use of WriteProcessMemory 2 IoCs

description	pid	Process	procid_target
PID 3632 wrote to memory of 4484	3632	OpenWith.exe	100
PID 3632 wrote to memory of 4484	3632	OpenWith.exe	100

C:\Windows\system32\cmd.exe
cmd /c C:\Users\Admin\AppData\Local\Temp\blxstealer.pyc
1⤵
- Modifies registry class
PID:4480

C:\Windows\system32\OpenWith.exe
C:\Windows\system32\OpenWith.exe -Embedding
1⤵
- Modifies registry class
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:3632
- C:\Windows\system32\NOTEPAD.EXE
  "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\AppData\Local\Temp\blxstealer.pyc
  2⤵
  - Opens file in notepad (likely ransom note)
  - Suspicious use of FindShellTrayWindow
  PID:4484

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

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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