Analysis

  • max time kernel
    142s
  • max time network
    146s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    26/01/2024, 00:35

General

  • Target

    baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.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\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
    "C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2436
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\e91b4fd8-90ab-4a03-8c18-bf9ed6092053" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      PID:2688
    • C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe
      "C:\Users\Admin\AppData\Local\Temp\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      PID:2612

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

          c5b8fff9183e0c3f560a43a0ec147841

          SHA1

          8cf7a72f8e7242823a932e29749f4b011193f092

          SHA256

          05fb64a509c823988adb43ef3248b46a7b5a8a59e3efc339aeffab444bec2b63

          SHA512

          397065559c23e61227362168e4ceafbe1d1ca0e12f13bb77a4b9dccf208735669a30e2ec17d97c7796da49adc69f3e03d5bbb5c3a6a508487e4421219e666100

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

          Filesize

          344B

          MD5

          57d77b8cc0c8c921813007bcf36f4962

          SHA1

          3da90ee146114e0259244e62e9d241ad4dcc8e2c

          SHA256

          45ac0cafa869f8c36ce3ee96f4c5611f082e13517b81ee040bd88fd813243f00

          SHA512

          a1b7adbf73ce59c8f0cc60bd2672f916d604a9a2021b678451f9a6931653c2c44cbd138155a77c63bb19bcd9b467186c30f9dfe1ecdd43f472d42440c6d3b89c

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

          Filesize

          392B

          MD5

          9092075ae624bc27db0e5c3ae2400451

          SHA1

          b013b30c0c58362273f070e340121b8aa743d438

          SHA256

          8079111a395ce837aa7ca8847e3136c9d69b382dedd5bb8b15c42feec9ad6c80

          SHA512

          a3526f04d69879686f1f1e51e6eebd0d0c691c89f007d111247d564f75a175bd491ba090965fa11ceda65f3cfac4d4efc8f5931f5fc658ffdcb42a636c4bfd03

        • C:\Users\Admin\AppData\Local\Temp\Cab92ED.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\e91b4fd8-90ab-4a03-8c18-bf9ed6092053\baaf76a5d567125252c32a834369f3658341d8224c4a058275c6760c43d7545b_payload.exe

          Filesize

          1.1MB

          MD5

          5cacd6f1b5cec25f3f0b0b3c4d5807d3

          SHA1

          41b8851bc57462502b0113ee1f2579dff5d94f4f

          SHA256

          c73cb93ad9ad6d003b505ce2b960d75467ad612786e0559c74dca18426fb9400

          SHA512

          7d46037825e5f34f02105c45ee05e03e4c2d7e73889a43c4e47704e27e563cae63f5d0dffb01a2d628ad0b3962e31cebf44dbed5892b6e1a995c45ee2c0714b4