Analysis

  • max time kernel
    150s
  • max time network
    152s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240319-en
  • resource tags

    arch:x64arch:x86image:win11-20240319-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09/04/2024, 05:46

General

  • Target

    e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe

  • Size

    770KB

  • MD5

    1c020d417d5549c596a13af5dfb7710a

  • SHA1

    d1f64d8ca15f630ecedd0c0a9d029c92bdd9e9f3

  • SHA256

    e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca

  • SHA512

    28c2f404ebeaf893fe59bb8dbc61784b7c9fd844b9f93ec68ec3ffdfe04089bca4b920440c0d1ba0a9b930c1343e3b53f9ab8bfab8c333556f9189f1ed9077ff

  • SSDEEP

    12288:4GgVuusDHbpT8wLAzBkkYDs82CQ9KJlWRezsArPGz3mtMOCsGimISMx:HHbpT8DxYg82Em4/rPGLxJuSMx

Malware Config

Extracted

Family

djvu

C2

http://sajdfue.com/test2/get.php

Attributes
  • extension

    .uazq

  • offline_id

    Jx0i3k2ogR5cKxX1evmz0Ex7TUxOUlnbh2dvnIt1

  • payload_url

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

    http://sajdfue.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. Do not ask assistants from youtube and recovery data sites for help in recovering your data. They can use your free decryption quota and scam you. Our contact is emails in this text document only. You can get and look video overview decrypt tool: https://wetransfer.com/downloads/df01994dd8d37c2c33469922f8e7155a20240402134014/fd95b0 Price of private key and decrypt software is $999. Discount 50% available if you contact us first 72 hours, that's price for you is $499. 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: 0860PsawqS

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 18 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.

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
    "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3136
    • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
      "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3560
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\30317f4b-fb11-4721-9c67-ab8456b0098a" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3944
      • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
        "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:808
        • C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe
          "C:\Users\Admin\AppData\Local\Temp\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2076

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

          580071ebd24cccfd9268e1474bb8134e

          SHA1

          443665efe7009fe1d4c5bc4786dc9cc540e59ef6

          SHA256

          53e3fd53196b53d23b724612cf2704518edf3e979dca02f5674ac419b5f7b461

          SHA512

          13d52455d8a30a0af06c420cd01f13f55efc4c55b59883c5208bf4929352e7b783557bff6a157c4fc71a8e7cbfadf00d55eef8ebef4b984624d8feb116a960a4

        • 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

          6ea20bc0fc2c3e3bb425c61c7d9967b2

          SHA1

          db12abdb193aef1a9ff41d5cf118972b247ea2e2

          SHA256

          82c3805dea47ea6f81327c67223c8d046932d8b69d023f4be2f82402636cbfad

          SHA512

          a71b859abf6e2c04b8afc8750e6b376799942373f3e6b10269310cca3280ada1fce8458e774b3bac14c8daead7b1e9e550b95dc7cbcf11e7e73bd9647156ab49

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

          Filesize

          392B

          MD5

          65578eaa8bbb5c411d4830e825febee6

          SHA1

          856eb7f23a84e27a2d7203fb3db11d9be62c9875

          SHA256

          e2d57dd9b033674f58fedc33f1be282184dcb5064bfbd6108be701d891fd40fc

          SHA512

          6af5b5da7b557fd87e702b6ebe77373cf1570203f00316e84d89cc7a9d0f3ef2a8e72e552f8126e78cb004c8ecc71cd6d59afe874331cbe8382ade6e323654b3

        • C:\Users\Admin\AppData\Local\30317f4b-fb11-4721-9c67-ab8456b0098a\e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca.exe

          Filesize

          770KB

          MD5

          1c020d417d5549c596a13af5dfb7710a

          SHA1

          d1f64d8ca15f630ecedd0c0a9d029c92bdd9e9f3

          SHA256

          e10c60a6efc4fd73a466ece52c01ac8cd78ac338ff41f610645c60c7845b10ca

          SHA512

          28c2f404ebeaf893fe59bb8dbc61784b7c9fd844b9f93ec68ec3ffdfe04089bca4b920440c0d1ba0a9b930c1343e3b53f9ab8bfab8c333556f9189f1ed9077ff

        • memory/808-20-0x0000000004B10000-0x0000000004BAE000-memory.dmp

          Filesize

          632KB

        • memory/2076-29-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-30-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-39-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-23-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-24-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-38-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-36-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-37-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/2076-31-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3136-2-0x0000000004C90000-0x0000000004DAB000-memory.dmp

          Filesize

          1.1MB

        • memory/3136-1-0x0000000004BE0000-0x0000000004C81000-memory.dmp

          Filesize

          644KB

        • memory/3560-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3560-3-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3560-17-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3560-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/3560-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB