Overview

overview

10

Static

static

3

6b3bdf071c...5c.exe

windows7-x64

10

6b3bdf071c...5c.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    150s
  • 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
    09-03-2024 08:05

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General

  • Target

    6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c.exe

  • Size

    337KB

  • MD5

    09ef5908cf7ee21a6005f237c38c3171

  • SHA1

    e8c7e758ff49edeade8b0fc25a16fb9c7f7d90e5

  • SHA256

    6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c

  • SHA512

    e44b5601bc290de81c239fff6253ef76712698b7629a57ce6ef0338490c739ff38eca90924584d1fabfcce0addbd95625d206697e3f34983c7969dd1f2a15e71

  • SSDEEP

    6144:/0UEeLo+tRGwFfdhi/G45TDjwCZpwCc4T9dbh:8eLo+tRnFfz941ECTwCcuh

Score
10/10
targetcompanyevasionransomware

Malware Config

Extracted

Path

C:\$Recycle.Bin\S-1-5-21-2727153400-192325109-1870347593-1000\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: B9BE46D88C9B8327C4DDB40C 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 (3282) 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\6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c.exe
    "C:\Users\Admin\AppData\Local\Temp\6b3bdf071c44fdffd4d6a4884c823e2cdc26df9c72e396afe00e42e95761d35c.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:2272
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} bootstatuspolicy ignoreallfailures
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2720
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} bootstatuspolicy ignoreallfailures
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:1144
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c bcdedit /set {current} recoveryenabled no
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2420
      • C:\Windows\system32\bcdedit.exe
        bcdedit /set {current} recoveryenabled no
        3⤵
        • Modifies boot configuration data using bcdedit
        PID:2020

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\$Recycle.Bin\S-1-5-21-2727153400-192325109-1870347593-1000\HOW TO BACK FILES.txt
    Filesize

    1KB

    MD5

    dca5873bc95b45cff49ecd3d6c001b9c

    SHA1

    021219a86bf944fcef95646224e3027bfa6b7717

    SHA256

    b30fea5d13edf6e39336eaa8d7a0dfe4df2d3f07b68ac1e410e4b5c1aa0ed099

    SHA512

    ad8709dc729838eb0fdf2ca6a3373952d6860d96457cf35847ec6aedb674d70d3d82bccb7588eadd2996cc9c9fe60d29ec7705cfbd32959193b537cc8a5e56d3

    Download Submit

  • 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

    28572ecb6d4bc180dad3fb73160ddd42

    SHA1

    1a9fc6abff23a51280b052e8c387d663a69fde38

    SHA256

    89d39db40e517d1158d07dac8b8f2f8d1dec323b2e92b5c9b19a88411702a402

    SHA512

    14de69983fa7adac756c5b211553d64160ea5ee8af864e1a605b7144bac833d984578d639378394a784d376e97c5fec8e1a78894cc7c1cdb54a701e0c37f39a3

    Download Submit

  • C:\Program Files\WindowsApps\Microsoft.XboxGamingOverlay_2.34.28001.0_x64__8wekyb3d8bbwe\microsoft.system.package.metadata\S-1-5-21-2727153400-192325109-1870347593-1000-MergedResources-0.pri
    Filesize

    35KB

    MD5

    61d572f42a7d2e0ca36f1473755153cc

    SHA1

    e113fd8f8811669c350fae64029447bb9a553923

    SHA256

    be1171c16290ac8159daf9b210912614547e6703dd1993439c250b500fdaa37a

    SHA512

    3efd87bdd64efd5e2bacc37fac3a5b8e0ffe77fcc78ea57bd8826ca00937c538d97b063a418039ce850d4d67d26c2cd129c68678f7743b1ad7f0dbffc6bd641b

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

    80KB

    MD5

    41d6d7cae3ee7a8668f040d1c2f26bde

    SHA1

    6282d9c1ae4bb71e7d389df2b2058547d372074e

    SHA256

    d863d303d886a58e3a1225d872e1b9f023fb55b26632ca6e6438b8276d71e888

    SHA512

    5a2631d9cdf0e0e821111585845b3de98bea3f83e4a0fd0ccbf0cb9d6b9c73d8f66f4bff68c2b3d8dd6645558c4f3e9e8f7ab7c8b09671503a89c51a94f1c68b

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  • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\86GPDKUQ\VB3P1NFT.txt
    Filesize

    12B

    MD5

    8cf4dec152a9d79a3d62202b886eda9b

    SHA1

    0c1b3d3d02c0b655aa3526a58486b84872f18cc2

    SHA256

    c30e56c9c8fe30ffa4a4ff712cf2fa1808ee82ca258cd4c8ebefcc82250b6c01

    SHA512

    a5a65f0604f8553d0be07bd5214db52d3f167e7511d29cb64e3fa9d8c510cc79976ff2a5acb9b8c09b666f306ac8e4ad389f9a2de3ca46d57b1e91060a4c50fd

    Download Submit