Overview

overview

10

Static

static

3

9871a7d556...84.exe

windows7-x64

10

9871a7d556...84.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    121s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240215-en
  • resource tags

    arch:x64arch:x86image:win7-20240215-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 10:56

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General

  • Target

    9871a7d5560f903ef52df5e90cc9a1240f32ff2e4bd734a17cea8add91b9d484.exe

  • Size

    374KB

  • MD5

    23e49d0db29fd798e7ab27292dcb3784

  • SHA1

    1f400b6d8de46d76608c24dc6d898c7e8a449c96

  • SHA256

    9871a7d5560f903ef52df5e90cc9a1240f32ff2e4bd734a17cea8add91b9d484

  • SHA512

    811f5592a824c69d83ad508ee4e92c07adc48d236a5d1ee636611b3c41d0f5ed87929963963743a4dc3593700ec13263b1136f6c089378d3ff88996663cd6ebe

  • SSDEEP

    6144:60dryUTkT5ZLewnleutuIsjrwtO/C3mT+OFGMTZazxBBKq:XyUc5ZLnc6uIsjrwtv2TPFGMVazoq

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\HOW TO BACK FILES.txt

Family

targetcompany

Ransom Note
Hello Your files are encrypted and can not be used To return your files in work condition you need decryption tool Follow the instructions to decrypt all your data Do not try to change or restore files yourself, this will break them If you want, on our site you can decrypt one file for free. Free test decryption allowed only for not valuable file with size less than 3MB How to get decryption tool: 1) Download and install TOR browser by this link: https://www.torproject.org/download/ 2) If TOR blocked in your country and you can't access to the link then use any VPN software 3) Run TOR browser and open the site: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin 4) Copy your private ID in the input field. Your Private key: 63967B63EED04CAC69AF1BFD 5) You will see payment information and we can make free test decryption here Our blog of leaked companies: wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion If you are unable to contact us through the site, then you can email us: [email protected] Waiting for a response via mail can be several days. Do not use it if you have not tried contacting through the site.�
URLs

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion/mallox/privateSignin

http://wtyafjyhwqrgo4a45wdvvwhen3cx4euie73qvlhkhvlrexljoyuklaad.onion

Signatures

  • TargetCompany,Mallox

    TargetCompany (aka Mallox) is a ransomware which encrypts files using a combination of ChaCha20, AES-128, and Curve25519, first seen in June 2021.

    ransomwaretargetcompany
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • Renames multiple (7300) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • Enumerates connected drives 3 TTPs 24 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Looks up external IP address via web service 1 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in Program Files directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\9871a7d5560f903ef52df5e90cc9a1240f32ff2e4bd734a17cea8add91b9d484.exe
    "C:\Users\Admin\AppData\Local\Temp\9871a7d5560f903ef52df5e90cc9a1240f32ff2e4bd734a17cea8add91b9d484.exe"
    1⤵
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:1256
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2132
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2124
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2248
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    aa6429e68b22fd6d351be6d38e2f4277

    SHA1

    503f2cb8a0319c22d5ddcab8e3893b8175d5ac15

    SHA256

    0b7bcd7606483d8dcfb0aee90128310f5056a2d2667ea4616877e437cd98873d

    SHA512

    2c8b513b6ecc736235c4f8ecf03f90058a5189959b850c9bab74395a11bfc13e8e8bf351928c9ffbc90f4593aac3d0b32ea1f461f833ab8eadcfd999f404f549

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