Analysis

  • max time kernel
    133s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    09-03-2024 02:57

General

  • Target

    0706c9d8413a6ffb7dc68d6a69a9ced942ad2e9f3318a2cf2e535d44661b52a2.exe

  • Size

    346KB

  • MD5

    7842ecaa959d7d0779580ceda3e1cb0a

  • SHA1

    ce1f9d2d5ba044666c00b3debf3bb1a1834e621a

  • SHA256

    0706c9d8413a6ffb7dc68d6a69a9ced942ad2e9f3318a2cf2e535d44661b52a2

  • SHA512

    63f9cd40055ada60ae0d15bf7bb871c9c2b9aa51133c55d3856d3711a59aabd4a4d61741a2d55d6fbc488b5acd027578dd66dfeb726a5bee93f25720461426c8

  • SSDEEP

    6144:+YH3q/WyWn8IuzQM0fXrEyv6skuLoh6dpWf9P0:V3gWrvT36sBLoE

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 We have downloaded your confidential data and are ready to publish it on our blog 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: FE12FFD1C8F9DDEDF6154A91 5) You will see payment information and we can make free test decryption here 6)After payment, you will receive a tool for decrypting files, and we will delete the data that was taken from you 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.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (3271) files with added filename extension

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

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0706c9d8413a6ffb7dc68d6a69a9ced942ad2e9f3318a2cf2e535d44661b52a2.exe
    "C:\Users\Admin\AppData\Local\Temp\0706c9d8413a6ffb7dc68d6a69a9ced942ad2e9f3318a2cf2e535d44661b52a2.exe"
    1⤵
    • Checks computer location settings
    • Enumerates connected drives
    • Drops file in Program Files directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    • System policy modification
    PID:4500
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2968
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2356

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    27a09fa9b9cca6c358d54c8d5e2c4d11

    SHA1

    d5eade72eea90c4e17bb94a43b32dd82e400fc71

    SHA256

    8630b02d676c652d7c8c68597ef1d1e616092befeed8f328e85b35208aaa1bb0

    SHA512

    bc678841ed9c759c837ff2149d677f2d7388fea407e8f4e813a7ab0fa67a1c103029c56589e22956bdf9e3f9cc4c14e211a625dc1cde70141dfadaf12aa62367

  • C:\Program Files\WindowsApps\Microsoft.ZuneVideo_10.19071.19011.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\S-1-5-21-1497073144-2389943819-3385106915-1000-MergedResources-0.pri

    Filesize

    100KB

    MD5

    52e7ec63f37d79dc9f25a7313f410361

    SHA1

    28a82fb41cdf981f0dccb8d45dd161689be7758f

    SHA256

    1fbeeb462a7b493cdb2ffe3320bcc2a11c878e68ae4c729edb7379601e865f48

    SHA512

    e2b117528119d9b397d9b018fec6a117d95d05eacf9c6b98d349aa18a70b6666a994f0ac11246eaeb759a7c17c95c6b887e834f8c8cbd767aa30df454f307fd1

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\W8BIYKF7\JOA60EZS.txt

    Filesize

    12B

    MD5

    8cf4dec152a9d79a3d62202b886eda9b

    SHA1

    0c1b3d3d02c0b655aa3526a58486b84872f18cc2

    SHA256

    c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01

    SHA512

    a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd