Analysis

  • max time kernel
    147s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    16/04/2024, 00:01

General

  • Target

    2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe

  • Size

    811KB

  • MD5

    ebdd98ee7607a3d6300406ddcdb955b1

  • SHA1

    659a2dd87be33c334fc153c9a7d6867f4beea607

  • SHA256

    2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138

  • SHA512

    d8f240d51c6ca1ddee7c1602cd397c39ddd4aab8d050bc454fdbbcb65b7663ab0f53708b981eb2daa8b85cfe5892242b8f575784409fb8795838647d6673e350

  • SSDEEP

    12288:pbrgWXLSO3or/ljxXbIdRvr6ku0Hyi50njpAmvyiHZTnx0RYcD:pbxLrKJxELvrE0Hy00xvySf0RYY

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.

  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • 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\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe
    "C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2292
    • C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe
      "C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:60
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\dafa3828-ae75-4115-83ce-b4cd1a24279c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3216
      • C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe
        "C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:5060
        • C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe
          "C:\Users\Admin\AppData\Local\Temp\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:4060

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

    3c6a98dff2c8e5d41183fb934602bccf

    SHA1

    389eea4f6c8b9a19dd6efd65b2c979feeb4262a7

    SHA256

    8c5e90026091280487ae42d5c0f266528cacb6de18c7f3d693ecfdb547b06ac8

    SHA512

    fde8e5de812641dc896e8d8182dcf4244670e431f3310aba576f0f330a9d8a4221eb7513005e9755512d0c645cbf164c4c5f8872689d2e52a58b3f39668de8fd

  • 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

    abd1057f75d426321573780e1e3e21cc

    SHA1

    528ae9bf35e5a85d7bfef9ed0d16d5f6b5ae8530

    SHA256

    86c102bc1032a57f161f0c27e196d6eec00622129e7919d9b9a793d4fe7a07d4

    SHA512

    adbfc0f380a03792bd09441b06bae4d0fb3c3030b3b3880f91fddce4dfdc774d220de770dffd7baabd3c8fea90659a810e9a9f3f73ff7069253ffef328fa3256

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

    Filesize

    392B

    MD5

    7a33b03ec4f6168285117dddd7b4f2b3

    SHA1

    2c4b71fc2713dba0efc0269cb45078c6b6eed50f

    SHA256

    fdc51462614302a924a8b5567df082c05d3750a90ec8f00933b3ab298a506625

    SHA512

    041ed3cb105c37f768be7b3ec089c5c63883eb2b29d9878b0c7c60d8f85cbf3b4184c06a579a91a8f6bf78b02716296c6957436a82e7b563e95d377656b9a52b

  • C:\Users\Admin\AppData\Local\dafa3828-ae75-4115-83ce-b4cd1a24279c\2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138.exe

    Filesize

    811KB

    MD5

    ebdd98ee7607a3d6300406ddcdb955b1

    SHA1

    659a2dd87be33c334fc153c9a7d6867f4beea607

    SHA256

    2f75621a9d1b0e38358b5a1e21bf0ddddadb8a6a1d714d761efa77024241a138

    SHA512

    d8f240d51c6ca1ddee7c1602cd397c39ddd4aab8d050bc454fdbbcb65b7663ab0f53708b981eb2daa8b85cfe5892242b8f575784409fb8795838647d6673e350

  • memory/60-5-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/60-15-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/60-6-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/60-3-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/60-4-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/2292-1-0x0000000004B30000-0x0000000004BC6000-memory.dmp

    Filesize

    600KB

  • memory/2292-2-0x0000000004BD0000-0x0000000004CEB000-memory.dmp

    Filesize

    1.1MB

  • memory/4060-20-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-22-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-21-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-27-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-28-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-29-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-32-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-34-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-35-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-36-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/4060-37-0x0000000000400000-0x0000000000537000-memory.dmp

    Filesize

    1.2MB

  • memory/5060-18-0x0000000004A00000-0x0000000004A95000-memory.dmp

    Filesize

    596KB