Overview

overview

10

Static

static

3

3fc75983ed...d9.exe

windows7-x64

10

3fc75983ed...d9.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
    08-03-2024 20:57

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General

  • Target

    3fc75983ed3c5ac1879d862760523e2986907fc9a177c9b740b5b36e6e28f9d9.exe

  • Size

    337KB

  • MD5

    6b50f4c0c2680b858660f4fac7da7997

  • SHA1

    d072d2599c066127bbe7498a22d6be36cb2520a0

  • SHA256

    3fc75983ed3c5ac1879d862760523e2986907fc9a177c9b740b5b36e6e28f9d9

  • SHA512

    5a2d0145a027f6291d6b44e01f162877a90f75f9430244279c4ff3dad20a3bd7c7d8f3579e589d8f43855b936f81bdd6735cca4d1e075b35dc524a42593c3718

  • SSDEEP

    6144:x10dQ9HvBKnLUJwsPnER47ST0vfnRX3yZY4J2laK92:xBHvwnLUO1R47S6fRny2n

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

C:\Users\Admin\Contacts\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: 731C020AD8B17208755103A2 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 (3301) 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\3fc75983ed3c5ac1879d862760523e2986907fc9a177c9b740b5b36e6e28f9d9.exe
    "C:\Users\Admin\AppData\Local\Temp\3fc75983ed3c5ac1879d862760523e2986907fc9a177c9b740b5b36e6e28f9d9.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:3656
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3188
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2088
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1404
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2692

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\WindowsApps\Microsoft.SkypeApp_14.53.77.0_x64__kzf8qxf38zg5c\microsoft.system.package.metadata\S-1-5-21-3270530367-132075249-2153716227-1000-MergedResources-0.pri
    Filesize

    17KB

    MD5

    230e3ae65dc06056f40f21a176b9616b

    SHA1

    01d0bd15dcc140901380f1857f1f5c3575ea9443

    SHA256

    535d45e1cb8185ef8508eb3187e2cf8bc973560ca8337c27570d3765d3327c88

    SHA512

    4fd14907f98b5eac556ba1c0c412c2505e9ce9f98791c51d527608913388376b99ba473a353f604ac3ad5b136585ff26e6a09eb7cdbe5919546928178d6c008e

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  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\GAXHX86M\OCO59G5X.txt
    Filesize

    12B

    MD5

    8cf4dec152a9d79a3d62202b886eda9b

    SHA1

    0c1b3d3d02c0b655aa3526a58486b84872f18cc2

    SHA256

    c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01

    SHA512

    a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

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  • C:\Users\Admin\Contacts\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    99380b5a764118bec04e48bb587c1671

    SHA1

    6b9c1e0c224ac7643ff5b551213d939a98f32e24

    SHA256

    24f94e326153f7c57fcccf96d7a5b671b9c4756d5b8b3c20f97dd5cd61abab5b

    SHA512

    fa7cce202485c9b1f4126be6ddc290900b99cc69456bfb2a51c08fd119a8d463a7b0d456215eddb4e170de4320e1b8c9b603c58b63ae00be33d020c8036b589a

    Download Submit