Overview

overview

10

Static

static

3

6b3bdf071c...5c.exe

windows7-x64

10

6b3bdf071c...5c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    118s
  • max time network
    121s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-03-2024 08:05

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General

  • Target

    6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c.exe

  • Size

    337KB

  • MD5

    09ef5908cf7ee21a6005f237c38c3171

  • SHA1

    e8c7e758ff49edeade8b0fc25a16fb9c7f7d90e5

  • SHA256

    6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c

  • SHA512

    e44b5601bc290de81c239fff6253ef76712698b7629a57ce6ef0338490c739ff38eca90924584d1fabfcce0addbd95625d206697e3f34983c7969dd1f2a15e71

  • SSDEEP

    6144:/0UEeLo+tRGwFfdhi/G45TDjwCZpwCc4T9dbh:8eLo+tRnFfz941ECTwCcuh

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

F:\$RECYCLE.BIN\S-1-5-21-406356229-2805545415-1236085040-1000\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: B9BE46D88C9B8327C4DDB40C 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
  • Renames multiple (2680) 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 2 IoCs
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c.exe
    "C:\Users\Admin\AppData\Local\Temp\6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c.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:2224
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2172
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2748
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2508
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1996

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • F:\$RECYCLE.BIN\S-1-5-21-406356229-2805545415-1236085040-1000\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    dca5873bc95b45cff49ecd3d6c001b9c

    SHA1

    021219a86bf944fcef95646224e3027bfa6b7717

    SHA256

    b30fea5d13edf6e39336eaa8d7a0dfe4df2d3f07b68ac1e410e4b5c1aa0ed099

    SHA512

    ad8709dc729838eb0fdf2ca6a3373952d6860d96457cf35847ec6aedb674d70d3d82bccb7588eadd2996cc9c9fe60d29ec7705cfbd32959193b537cc8a5e56d3

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