Analysis

  • max time kernel
    119s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20240708-en
  • resource tags

    arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system
  • submitted
    06-11-2024 02:03

General

  • Target

    06699c98ed2ef759b2434ac5777a2886b966c0ffa1c96c046f5cde77fe833784.exe

  • Size

    346KB

  • MD5

    9099859494363864de61fb30d6c201e6

  • SHA1

    90378c5fd151128287c12eea0ea3761833b0ad03

  • SHA256

    06699c98ed2ef759b2434ac5777a2886b966c0ffa1c96c046f5cde77fe833784

  • SHA512

    cae8c4970c6d8891d2da8924e6ba2331242c112ee5eec5823d8e55c29b40822b0f4287b64e5b6b5d71c0aa2cb8b998ac4533e2dd6326af820f29e9e5eadd59ba

  • SSDEEP

    6144:lbjhsyXpHunpQE/T/iSIDexeohXdbVeb:7XpOpplI8eoT

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: 1ADF7F8D284C47DBDCD4D84A 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.

  • Targetcompany family
  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (244) files with added filename extension

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

  • 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 2 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\06699c98ed2ef759b2434ac5777a2886b966c0ffa1c96c046f5cde77fe833784.exe
    "C:\Users\Admin\AppData\Local\Temp\06699c98ed2ef759b2434ac5777a2886b966c0ffa1c96c046f5cde77fe833784.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:2668
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2928
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2564
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2824
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2248

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    1KB

    MD5

    06716cced81ad9d3c4c650865b2ee9ed

    SHA1

    a2c5be12fa1b9a84136bf074a35345c27e0c2988

    SHA256

    b45b1822817fc3ddd5065c21a2608977de2a7474422a153803590e9416aacee0

    SHA512

    4c659ef454e5575cde370543501d4a500ebbd98917ad6028ff90f3b1ec48f6d0e930bb69116aa2913250f07d70773dccd7d71ac684fb07c7526e5f1018bc3f3e