Analysis

  • max time kernel
    86s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231222-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231222-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/01/2024, 06:21

General

  • Target

    2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe

  • Size

    1.1MB

  • MD5

    5cacd6f1b5cec25f3f0b0b3c4d5807d3

  • SHA1

    41b8851bc57462502b0113ee1f2579dff5d94f4f

  • SHA256

    c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400

  • SHA512

    7d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO82WQHUq7:F0dwAYZt6C31WeTVRPOh27Uq7

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/raud/get.php

Attributes
  • extension

    .vapo

  • offline_id

    BUcuB8PRg0LNi380axIJs5BS8nCUdeo9U88L2Lt1

  • payload_url

    http://colisumy.com/dl/build2.exe

    http://zexeq.com/files/1/build3.exe

  • ransomnote

    ATTENTION! Don't worry, you can return all your files! All your files like pictures, databases, documents and other important are encrypted with strongest encryption and unique key. The only method of recovering files is to purchase decrypt tool and unique key for you. This software will decrypt all your encrypted files. What guarantees you have? You can send one of your encrypted file from your PC and we decrypt it for free. But we can decrypt only 1 file for free. File must not contain valuable information. You can get and look video overview decrypt tool: https://we.tl/t-tnzomMj6HU Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. Please note that you'll never restore your data without payment. Check your e-mail "Spam" or "Junk" folder if you don't get answer more than 6 hours. To get this software you need write on our e-mail: [email protected] Reserve e-mail address to contact us: [email protected] Your personal ID: 0717JOsie

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • Checks computer location settings 2 TTPs 2 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Modifies file permissions 1 TTPs 1 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:624
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\88287fd5-0f51-4ef2-83b0-6d4eed0ca0e4" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:4608
    • C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Checks computer location settings
      • Suspicious behavior: EnumeratesProcesses
      PID:4032

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          1KB

          MD5

          8daed5fecd6b7116eb16ea66eda552e0

          SHA1

          bb2149a2541f11dc4da8df7f4579dd65c341ce8b

          SHA256

          076f87f4acbece273de34b83b72bb1a4cf38135f1cf27c49722ce8dfe5c60d71

          SHA512

          eeb7e9bea6db27a316e09dd4cdaae0ccbb3d895e56dad92f54e59a6bb13e450fb6bfb09972f7a23aadba82960af004a7b72852d477b14b80d9d5a68dd6859fc7

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

          Filesize

          724B

          MD5

          8202a1cd02e7d69597995cabbe881a12

          SHA1

          8858d9d934b7aa9330ee73de6c476acf19929ff6

          SHA256

          58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

          SHA512

          97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA

          Filesize

          410B

          MD5

          c9571b842d2b33d1d800a8e5b2cbcd44

          SHA1

          8fd8d53d1489ba4a8ee03b73324fafde93e617b7

          SHA256

          040ee48c9f7e87642537425106d7e84d18983a3637b70a20c7afa4f95a2be71f

          SHA512

          191d326e9dd821e1e8dadad9f8833b9ab6d195eb54430e5777327109f9c234160425be5a2dd6eec3ce9faa7cefce4322729238632f88ee32bcb62ad43f7ddcb8

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464

          Filesize

          392B

          MD5

          cb767efea648e7ee7d43d1b8a745f8da

          SHA1

          4acbb3acaeb44cbc73fdc2cdf906569e755bb401

          SHA256

          ef3f5e08dd5568da42bf9dbf29638529abb776d8290345c2c25be375a0a62b01

          SHA512

          815ac3e11f0bfa170d6a19e811691801859712e9a17671f5beee41a1a7ccc9e58be7404b852b6f39d759289d6a5c9b8c012fea5a15d27d23ca596298ff575c78

        • C:\Users\Admin\AppData\Local\88287fd5-0f51-4ef2-83b0-6d4eed0ca0e4\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe

          Filesize

          1.1MB

          MD5

          5cacd6f1b5cec25f3f0b0b3c4d5807d3

          SHA1

          41b8851bc57462502b0113ee1f2579dff5d94f4f

          SHA256

          c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400

          SHA512

          7d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4

        • C:\Users\Admin\AppData\Local\8bbf0cd2-1e53-4eeb-b685-d9b78a8a2442\build3.exe

          Filesize

          859B

          MD5

          61bb6956d202cdd7d061a546d2f00162

          SHA1

          de5f774f3b949d3b226cf097d221652fc4cd9bcc

          SHA256

          3f8372424f809ca0ac4e87a6e9ca057d401b5c9797d339c2c553e00f32b9be29

          SHA512

          90214586fd1ca92c0d15d9140c6897c1c442a31152128d9b3716245ea33b772680d0b6251f85334c9a0c687765350d04008aba9e3aee02f2b083e7a98d64c8e6