Overview

overview

10

Static

static

3

51e82831b3...a9.exe

windows7-x64

10

51e82831b3...a9.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    133s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-03-2024 10:54

Sharing

Copy URL
Twitter E-mail
Report Analysis Logs

General

  • Target

    51e82831b301e02b8550ba03e60848fa28d855361e61e16b47a717dd9c9d20a9.exe

  • Size

    370KB

  • MD5

    9c9571cee52af57541df7d700f7f4fdc

  • SHA1

    5578a2b6d813773a54db2591477d3d89ff0092a8

  • SHA256

    51e82831b301e02b8550ba03e60848fa28d855361e61e16b47a717dd9c9d20a9

  • SHA512

    d2e1ee0d0ec4d1850116e3a686b7570452e650721b5d15bbfa0471645e74ada1e639670b5c754e6696052872fc5c94ee9104e2c62e5e20521decce56671d4ff3

  • SSDEEP

    6144:n0gf2LaZd9sw69XKKDH308uOGKP/bxPyIrEL3/zBg:L0aZd9xXKDHhJGulP2S

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: E6671E7AE1CF7F713C184976 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 (6504) 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\51e82831b301e02b8550ba03e60848fa28d855361e61e16b47a717dd9c9d20a9.exe
    "C:\Users\Admin\AppData\Local\Temp\51e82831b301e02b8550ba03e60848fa28d855361e61e16b47a717dd9c9d20a9.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:4796
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1780
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3468
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3536
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:3208

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Program Files\WindowsApps\Microsoft.XboxGameOverlay_1.46.11001.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.b783ffe3.pri
    Filesize

    2KB

    MD5

    daa9d43d003565ae3658a5cfad3dc4f5

    SHA1

    f29c621551af2b914b5ea6aea0b39859b77eb66c

    SHA256

    d6aad4da48ba9124bba36f513d1b803e050ad4ec113379e6f0d108975ad020e3

    SHA512

    abcc1aa1d569b73bbbaf9780c4bbff1dd5eed03416731fce5fcb39263a1a44bbd79cced8a6cb6637e1680df46d91a0d1c9abe517e1a58a7f91c4b7df5e429a93

    Download Submit

  • C:\Program Files\WindowsApps\Microsoft.ZuneMusic_10.19071.19011.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\resources.35ca3df1.pri
    Filesize

    80KB

    MD5

    1480504bcced43a7672b9c510d9c157c

    SHA1

    81e27676b91db7613dc1f71682a1aff6ddbcd453

    SHA256

    8b306121ee3d16bbd11fdcad34e961eb04c48226a2e5a030fa188ddd26e1e593

    SHA512

    e04e10985f4fa7746c59edd0c4b9da13bddc927d508ae93f3cd5d211547d5ba1b3fd964d09f229d5bd706c99dfdd26b37b18e8864e40b6751690f956040222b5

    Download Submit

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\W8BIYKF7\4H7O8FAF.txt
    Filesize

    12B

    MD5

    8cf4dec152a9d79a3d62202b886eda9b

    SHA1

    0c1b3d3d02c0b655aa3526a58486b84872f18cc2

    SHA256

    c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01

    SHA512

    a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

    Download Submit

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

    1KB

    MD5

    81907e7c1aeacb718d72348fce73b978

    SHA1

    87ba5691712453b564dd3a66865a39edb57e87ba

    SHA256

    431b427f7566b07e14968c9c02b11fb0c9ece7af3469700047cbce30a36f8651

    SHA512

    f75897425ab676a79e44dac78dacb09e8421a6a0e16c67fd018cb30cd28be086efa1f9681eaa363e3d5097d8fb581ab231c95468087e0c85e8010f5ff3202d82

    Download Submit