Overview

overview

10

Static

static

3

1c615da28d...84.exe

windows7-x64

10

1c615da28d...84.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    150s
  • 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 10:39

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General

  • Target

    1c615da28dac08f6434eb7737f6102484cef6c90564a6562320e1dc3fe48e584.exe

  • Size

    370KB

  • MD5

    0272d1999cb6fbf3515156af63069c09

  • SHA1

    5cadbf8b6769a034d709dab997e6b3b919fcbaad

  • SHA256

    1c615da28dac08f6434eb7737f6102484cef6c90564a6562320e1dc3fe48e584

  • SHA512

    bb6eb1a92136d9423cabb684a37daaf5eafe1caa0dbc4d735f9b9532d2a2e0a2ef1507f5b3d6a822afa47dc23eb92f90fe1d1670611d5c398e32f6dad71c86a6

  • SSDEEP

    6144:G0H9hC0Ad6SkwEcXDVVIrElO2Z3WhrGJpFxFe5/QZ2BCn:/hnAd6SJxhVIrELBWhGJpFCCEy

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: 95C0AF0165A5E0D2EA3CAEC1 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 (6514) files with added filename extension

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

    ransomware
  • 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
    evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\1c615da28dac08f6434eb7737f6102484cef6c90564a6562320e1dc3fe48e584.exe
    "C:\Users\Admin\AppData\Local\Temp\1c615da28dac08f6434eb7737f6102484cef6c90564a6562320e1dc3fe48e584.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:468
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3420
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4776
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2204
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2156

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    1KB

    MD5

    4019a2b39bb6be7c9cd55e6ecd6f1044

    SHA1

    a51994f63e53e5d595996a14d8baab0e7831c45e

    SHA256

    943031b77b38e260eb720e8f5a333c843336045411d43be09e73e960493e2d23

    SHA512

    bdb2e055456ea80cbc7dbd4f4fbe01237e2ecf69dc384ea4e68d6fb6491370fa38b31408f26000bd0bbbcf9b0138929cbe9aa965ca9b388a34cf3f0f73090f0b

    Download Submit

  • C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.ff33ee1b.pri
    Filesize

    137KB

    MD5

    e2e9b8eb130f65dcff89a090f2957701

    SHA1

    16a0bb05808d82e666bf8e95997aa9e2f4384c78

    SHA256

    a685b00ecaf5c09486c193f62ab27fbf6c1d0596f0d8cd9747c0674e3bd160ef

    SHA512

    c251ba41c9b2bd77b50812d006fd5aec66356b68318915fa38cc667609ae50e986029520fe1ac411a8820e68d3f2f29558b27b83e18435ee3a9ffa75c7550c2f

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GAXHX86M\YU3PXE5X.txt
    Filesize

    12B

    MD5

    8cf4dec152a9d79a3d62202b886eda9b

    SHA1

    0c1b3d3d02c0b655aa3526a58486b84872f18cc2

    SHA256

    c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01

    SHA512

    a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

    Download Submit