Overview

overview

10

Static

static

3

555bfc9992...c7.exe

windows7-x64

10

555bfc9992...c7.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    129s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-03-2024 10:54

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General

  • Target

    555bfc999269f23d099be1e6e3f068d378bb197f0d4297fe263f1dc8f75609c7.exe

  • Size

    343KB

  • MD5

    2518b64669bc0515e6716b6247044871

  • SHA1

    a2cbf781e7beebfe405109a10a55ed231d77c431

  • SHA256

    555bfc999269f23d099be1e6e3f068d378bb197f0d4297fe263f1dc8f75609c7

  • SHA512

    8252c133d3f7ac42b8b368e86310c882174d540b6dda1da5b793a46a7f5f942af9a33f0ba1e4d1931e643668e9d63cc728a4ab591301ec211701f9f16a78d4b5

  • SSDEEP

    6144:fn07StolR/dwUqXdWrwiBfubs57BtNVw:fZtolR/SrdWfluI9BT

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

F:\$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: 55DB9B6F31AA0EA8F5DA8D19 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.

    ransomwaretargetcompany
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
    ransomwareevasion
  • 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 64 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • System policy modification 1 TTPs 1 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\555bfc999269f23d099be1e6e3f068d378bb197f0d4297fe263f1dc8f75609c7.exe
    "C:\Users\Admin\AppData\Local\Temp\555bfc999269f23d099be1e6e3f068d378bb197f0d4297fe263f1dc8f75609c7.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:4248
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4640
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4536
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3888
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3220
  • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
    "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=1340 --field-trial-handle=2276,i,11674642242468042059,14711253743544118298,262144 --variations-seed-version /prefetch:8
    1⤵
      PID:4500

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • F:\$RECYCLE.BIN\HOW TO BACK FILES.txt
      Filesize

      1KB

      MD5

      f1e86eaca71ae8afdbb866ab7204ad23

      SHA1

      8b1254f5d7c6f393fe353774597c4b11a9ff6776

      SHA256

      4d07c6653d4e671a83bc2ee94da2f687ff9a94226fd452921b51431654b022d1

      SHA512

      a58776d9ed88bca36e6cfd1d8662178cd07f690dacdd5da1fc08eb0acd1ddd7e12772e6e103a889d32bdc09c7d5287d7e4beb14a16340a2a1cb22dc978824115

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