Analysis

  • max time kernel
    146s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20240412-en
  • resource tags

    arch:x64arch:x86image:win11-20240412-enlocale:en-usos:windows11-21h2-x64system
  • submitted
    15/04/2024, 16:14

General

  • Target

    e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe

  • Size

    804KB

  • MD5

    c5c1ca56d106806d9b23a85fd3dd08dc

  • SHA1

    c665b88616eb5c4283c25188ff078145b218f07d

  • SHA256

    e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148

  • SHA512

    a0517342af6f496eba51b823e0d96ab33a1d6079fa2f6c01bc754f29ca28ed5324b88c8e82175a3b97e8e6d5ff029f20640a419aa7ba49089e57af813a8113e9

  • SSDEEP

    12288:Kirakz6ZgXYHgPMbfwNHRsMqGZ8KimyNbfh0GMUBCL4eFu87oDIEDE8SnCcD:KiQdfw4Mq08Kmbh77I/T

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\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
    "C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:4524
    • C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
      "C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:3444
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\72d955fc-7c30-4782-96cd-245dfafc7346" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:2868
      • C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
        "C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:3876
        • C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe
          "C:\Users\Admin\AppData\Local\Temp\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:1360

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

    f741810cb830974aebab5f43eb80bc43

    SHA1

    1019ffd11ba07f662659b7f244d2743b4b1562c3

    SHA256

    20c4d592f763227cd6ed7fc812ae9d65edd6e046c30a70e7c694c579d9f1580a

    SHA512

    607ca542510b2a90fbade08569e449fdf35673dc4f045c4ca61982666fe2dd694d265835ebe2d90146dfcecedc7f229804c8e235d8eb9ca36f761064522539f4

  • 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

    7371cd129f3b63bde1c1cd814e0b92fc

    SHA1

    e51674e55951bf5bcbeb3d937de4750e7c7d5f51

    SHA256

    a8ac7fa3cb85c5c3d42c9fb3c902eab5df256646f038f2245869def0518c8efc

    SHA512

    bbbdc9e89e54db3a36aeaeaa8a0f8075bb22ae8f49c7ab15d04f96622990b0d7deb62783ea5bbec9631ea9f11798ddde7dd48cea547ea59b9fe6ee0f84e11633

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

    Filesize

    392B

    MD5

    3a9b423c973618dc59ac56206f2c0661

    SHA1

    6acb97b51ecae83085335275a8de4d6a21b06007

    SHA256

    d23dc95d1fc8f6ab032ba288173da2c4e4c3d1a84d09167e89e9716dc2537fbf

    SHA512

    6af9082f35a6c1e91c892885defb89bd7540508a4b242f1cfa179913b856f0a37718167aaa9e0837e3b56a4ad07c7ddd463e9a0cf29e563ef5dcd1b6c4fcc182

  • C:\Users\Admin\AppData\Local\72d955fc-7c30-4782-96cd-245dfafc7346\e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148.exe

    Filesize

    804KB

    MD5

    c5c1ca56d106806d9b23a85fd3dd08dc

    SHA1

    c665b88616eb5c4283c25188ff078145b218f07d

    SHA256

    e904ad323124cfdc673dbdaa260b75f2cd592bacc5f4b442d2c00d759538f148

    SHA512

    a0517342af6f496eba51b823e0d96ab33a1d6079fa2f6c01bc754f29ca28ed5324b88c8e82175a3b97e8e6d5ff029f20640a419aa7ba49089e57af813a8113e9

  • memory/1360-30-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-31-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-39-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-38-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-23-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-24-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/1360-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3444-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3444-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3444-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3444-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3444-17-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/3876-20-0x0000000004AD0000-0x0000000004B67000-memory.dmp

    Filesize

    604KB

  • memory/4524-2-0x0000000004C90000-0x0000000004DAB000-memory.dmp

    Filesize

    1.1MB

  • memory/4524-1-0x0000000004BF0000-0x0000000004C8B000-memory.dmp

    Filesize

    620KB