Analysis

  • max time kernel
    149s
  • max time network
    155s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240221-en
  • resource tags

    arch:x64arch:x86image:win11-20240221-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    09/04/2024, 08:01

General

  • Target

    ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe

  • Size

    770KB

  • MD5

    853cc78a670e6ac494a7daf873b84d2b

  • SHA1

    65034a73ece0f47a512b0169b4bb8d7327eb5ee7

  • SHA256

    ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6

  • SHA512

    384379dc5bc40d1690bc1ed94c324e2b24dc17ad1ea08a41bcc66350a6619d1f2a51a1111b8b9c2e8fd7f5e21c291eb1f7b00ce942dc4666ddeff11acb357d83

  • SSDEEP

    12288:sqyhRwn3MMk9eh+cKpLJn0hQ30RDIyZ4b3XmuL/UysIJmvPb2nnJPZ33aDw4o4:GW3Ao+cKx0BktGuLsysFnb8JPZ3qDpR

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 17 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\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe
    "C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1636
    • C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe
      "C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4880
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\b3a32004-0fca-418c-8025-d7388bb7e214" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1924
      • C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe
        "C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:772
        • C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe
          "C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1180

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

          fc5408c48a55314c72e200b74330cac4

          SHA1

          7e8889ec3189a40e6078088927bf3612753fa628

          SHA256

          7ea2a016d97635b1367455af2250cbf9e9c34d293829d11fc21ce905347590c4

          SHA512

          481753ef755c188012919ea728ea0395f22b6ce83f2f9a11675be6072f154db141b2382dc62ad7c3c95e36596529176a66f40e3d118cf0e33ea8e6f716ae1d77

        • 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

          99b0f15a79de51abcd3082b95d9e94a5

          SHA1

          a703df786b0dd9ff6e1092219191037fa061ddd3

          SHA256

          18c1efe688d64db3e09df6c248ba890f5f37c3cf42089ad12abe978b3e56757c

          SHA512

          acd2349af80dade6ed74436bb173ddf6e8e6be507bab1ef79795d3e7a082faeb3a91e0153177e067dc60ef006386effcc589dad694b2e7a3cbebd295d59ce3b2

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

          Filesize

          392B

          MD5

          a34ff07789d8c10e95ab13e0317749f1

          SHA1

          e7025cbaf8e3853186f1c8363ef4311041bb2844

          SHA256

          3c719f08fdcf9de9664d442ad42e3ea122497f9a77762e1cebe88217cb6ba885

          SHA512

          cc29b9ddc6f385b5675f3168ffec8c9b346db3d2128d725ec2e408b3a4066e690d8a2677727a51fbe7f84356f41c60f315873ef5b8c132598c38979eba8384c6

        • C:\Users\Admin\AppData\Local\b3a32004-0fca-418c-8025-d7388bb7e214\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe

          Filesize

          770KB

          MD5

          853cc78a670e6ac494a7daf873b84d2b

          SHA1

          65034a73ece0f47a512b0169b4bb8d7327eb5ee7

          SHA256

          ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6

          SHA512

          384379dc5bc40d1690bc1ed94c324e2b24dc17ad1ea08a41bcc66350a6619d1f2a51a1111b8b9c2e8fd7f5e21c291eb1f7b00ce942dc4666ddeff11acb357d83

        • memory/772-20-0x0000000004AA0000-0x0000000004B39000-memory.dmp

          Filesize

          612KB

        • memory/1180-30-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-29-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-39-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-22-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-23-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-24-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-38-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-37-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-36-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-34-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1180-31-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/1636-2-0x0000000004B40000-0x0000000004C5B000-memory.dmp

          Filesize

          1.1MB

        • memory/1636-1-0x0000000004AA0000-0x0000000004B35000-memory.dmp

          Filesize

          596KB

        • memory/4880-6-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4880-3-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4880-18-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4880-4-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB

        • memory/4880-5-0x0000000000400000-0x0000000000537000-memory.dmp

          Filesize

          1.2MB