Analysis

  • max time kernel
    140s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-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.

  • 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 2 IoCs
  • Suspicious use of WriteProcessMemory 8 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⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:1784
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\d45561ba-d9af-44d8-83d8-31c929b151e5" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:2724
    • 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⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2452

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

          337bc85d3bf6d4743c6f8d9d522049dc

          SHA1

          e9f8fc10f4e51b41bb5a39f28a452cafd556b33f

          SHA256

          415a8e78c7bc700a8c656cbdb3f93d3e7000d1c881b8bb2a9099091eae316304

          SHA512

          a3e53adf31899650375a2727884a763b93ce5a2d56b7ca987d616eac1f56494309ed957e6dc9e0d778c511c055e48cf255fbb514593451c5c5b39e84a6ebf4b0

        • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015

          Filesize

          344B

          MD5

          61d57fc111152577c747f945f981a007

          SHA1

          408c6d0996c50510b8a10d9a43e6339ebf0f6183

          SHA256

          deb826f3401508280aed829b3de31c0e86fccb7e4d413e3adae8d866d9b4e5aa

          SHA512

          aea61d9b3a1e91a248f8b7954eb3b64fc96fb3e59ec50a042759af9b1762a9a16c0fc1e2265387944eca218c07472120fde945e033be5d4245133e444f92d170

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

          Filesize

          392B

          MD5

          28079b21f0900600d2886a7ace964a5d

          SHA1

          cf54dde59d38138c68bdbbbc54ddf9619be62eae

          SHA256

          033c97658e0a97fcf81d21507b2321cabf28194b8084df18529beaa266ef9423

          SHA512

          f3f90e6a308d268c3084da18a14e4637b4d5931d10a0db28e22bb01f8345a1a09e679db65404091acb16afdd05659cc84115588419726ab0d7d7629a427b7357

        • C:\Users\Admin\AppData\Local\Temp\Cab1620.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\d45561ba-d9af-44d8-83d8-31c929b151e5\2024-01-26_5cacd6f1b5cec25f3f0b0b3c4d5807d3_stop.exe

          Filesize

          1.1MB

          MD5

          5cacd6f1b5cec25f3f0b0b3c4d5807d3

          SHA1

          41b8851bc57462502b0113ee1f2579dff5d94f4f

          SHA256

          c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400

          SHA512

          7d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4