Analysis

  • max time kernel
    149s
  • max time network
    155s
  • 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 15:26

General

  • Target

    3742b60308d2a7fb47c69a625dfdaae16561db5ee7353ce9a8a02110961192f5.exe

  • Size

    337KB

  • MD5

    52650b037a3c20c4405cd699510d7047

  • SHA1

    7bc89286b3e1cd777881a7ab44d7c384d097d140

  • SHA256

    3742b60308d2a7fb47c69a625dfdaae16561db5ee7353ce9a8a02110961192f5

  • SHA512

    ce64e5f74396e33b8465a16dca8319ae3c02a6e3a36038153c8c91289284fd515985c45eec964ac7343f779eafb0793399ca0421e3b2a7b042d4d35b933e5107

  • SSDEEP

    6144:y10d91SHBFBnJwsOE/4tHzhvN3zXPyWYUJular92:y7HBFBnOc/4tHddz/yLr

Malware Config

Extracted

Path

F:\$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: CA8A258A6BFBE73CAB80810D 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.

  • Modifies boot configuration data using bcdedit 1 TTPs 2 IoCs
  • Renames multiple (3285) files with added filename extension

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

  • 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

Processes

  • C:\Users\Admin\AppData\Local\Temp\3742b60308d2a7fb47c69a625dfdaae16561db5ee7353ce9a8a02110961192f5.exe
    "C:\Users\Admin\AppData\Local\Temp\3742b60308d2a7fb47c69a625dfdaae16561db5ee7353ce9a8a02110961192f5.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:1584
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2520
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:4592
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2476

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Program Files\WindowsApps\Microsoft.WindowsFeedbackHub_1.1907.3152.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\S-1-5-21-2727153400-192325109-1870347593-1000-MergedResources-0.pri

    Filesize

    137KB

    MD5

    24839a09efbdace6b95dd4fcfff24968

    SHA1

    b58fc87aa0df1444d6e398137d29b4e1cbede97d

    SHA256

    f3e0d3bc1badea334c5e92fb97fbc31b0d0fe4b126581311a10abe8cdce4a266

    SHA512

    fa781a54da35eb4ce4b68566d735f7e1879a1a66b6d15a2c8ad02efefd866a66117caacf4bcf2f936d51368897c86f6dd0f3310de7114a3ac8b1953fe5af78fe

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

    Filesize

    80KB

    MD5

    4340d9594961c08f75600d43601b65b5

    SHA1

    ce2103c69a9e244719766c8d6a918a5927c21e63

    SHA256

    71ad63ed5a1f71dd6a628ecfb69aeb9085e397eda602387ba1be85bffbab859c

    SHA512

    69281d1b654dcd4f636dadf37e8b4ddf2163049423f55ce46a691258adfb210d91cc2c3c646d1f4b9cf9a1d8f30e12cb01a0f9e1513fc0b8596aa8cf1f129d95

  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\86GPDKUQ\6N9H1MQV.txt

    Filesize

    12B

    MD5

    8cf4dec152a9d79a3d62202b886eda9b

    SHA1

    0c1b3d3d02c0b655aa3526a58486b84872f18cc2

    SHA256

    c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01

    SHA512

    a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

  • F:\$RECYCLE.BIN\HOW TO BACK FILES.txt

    Filesize

    1KB

    MD5

    88115ac83f621749d9785a595f2becfb

    SHA1

    e1abf1ec484ad9893d0382803f7f24ea7a02b53c

    SHA256

    686d1c3e20bb1a207ba178fede70ef0f8f6385cbcbd8b8a25b563ca4b4d53fc1

    SHA512

    befa8e8e565b92be4f9f2bed5f6196f34e032f8a6a36d7e7ccf9ad140f289db97df09f72877dbad317c3377ea55ea4f7325ffe4b796dd9230a595d7252303256