Overview

overview

10

Static

static

3

40c3fe2af5...63.exe

windows7-x64

10

40c3fe2af5...63.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    64s
  • max time network
    129s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    20-03-2024 10:53

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General

  • Target

    40c3fe2af51ddb86b33a2ba395f341192710bea911fa9d9904fb22a395e3ee63.exe

  • Size

    370KB

  • MD5

    074ed7619b968a6f609b58297a86e86d

  • SHA1

    f0dbcb60598d521896924ab40b7ea8837f14c2b1

  • SHA256

    40c3fe2af51ddb86b33a2ba395f341192710bea911fa9d9904fb22a395e3ee63

  • SHA512

    a133aa304c1cb07a31a1640c0b57ffadf3228e248409e2ca172a504bd54dee00ce522fbd879c4d6a1e353ba7a7a1d33e5b91bfff3c1bb47e070b3d1e2d1559a7

  • SSDEEP

    6144:d0H9hC0Ad6SkwEcXDVVIrElO2Z3WhrGJpxxFe50QZ2BCn:shnAd6SJxhVIrELBWhGJpxClEy

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 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: 918418F1DDB6528155D70CC9 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 (1508) 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\40c3fe2af51ddb86b33a2ba395f341192710bea911fa9d9904fb22a395e3ee63.exe
    "C:\Users\Admin\AppData\Local\Temp\40c3fe2af51ddb86b33a2ba395f341192710bea911fa9d9904fb22a395e3ee63.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:1640
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2308
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2816
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2832

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    1KB

    MD5

    689bbd461d71c70c26dd8b2b9cda438e

    SHA1

    3d20439ad8d8d43fc36ef9de4bdac6264076344e

    SHA256

    b963e6e756e3edd952c2948f1a749a7bcd8e4d29ac501ec2f37fea0d6041e248

    SHA512

    6796380c39030c0e9fd8eeb9caff2e4f9fc7b69165160b3ea55ce70cabefeb04c3fcef31a7f1260be1c25e4a4463f077f64e6ddb442629064c052f4dfca3c2e6

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