Analysis

  • max time kernel
    143s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-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 9 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 2 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).

  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 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:4036
    • C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe
      "C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:732
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\d8acdbf3-1d14-4016-af26-97057cb9b9c6" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:1640
      • 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:4548
        • C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe
          "C:\Users\Admin\AppData\Local\Temp\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
            PID:4568
            • C:\Windows\SysWOW64\WerFault.exe
              C:\Windows\SysWOW64\WerFault.exe -u -p 4568 -s 568
              5⤵
              • Program crash
              PID:3368
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 380 -p 4568 -ip 4568
      1⤵
        PID:1628
      • C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe
        "C:\Program Files (x86)\Microsoft\Edge\Application\msedge.exe" --type=utility --utility-sub-type=asset_store.mojom.AssetStoreService --lang=en-US --service-sandbox-type=asset_store_service --no-appcompat-clear --mojo-platform-channel-handle=3696 --field-trial-handle=3192,i,2785050981002401924,4037047756083432660,262144 --variations-seed-version /prefetch:8
        1⤵
          PID:1680

        Network

              MITRE ATT&CK Enterprise v15

              Replay Monitor

              Loading Replay Monitor...

              Downloads

              • C:\Users\Admin\AppData\Local\d8acdbf3-1d14-4016-af26-97057cb9b9c6\ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6.exe

                Filesize

                770KB

                MD5

                853cc78a670e6ac494a7daf873b84d2b

                SHA1

                65034a73ece0f47a512b0169b4bb8d7327eb5ee7

                SHA256

                ed47d943001dc4d214f723f83e7443f91dfbe0e72a17f9bc1f536465c9036cb6

                SHA512

                384379dc5bc40d1690bc1ed94c324e2b24dc17ad1ea08a41bcc66350a6619d1f2a51a1111b8b9c2e8fd7f5e21c291eb1f7b00ce942dc4666ddeff11acb357d83

              • memory/732-3-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/732-4-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/732-5-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/732-6-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/732-15-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/4036-1-0x0000000004A70000-0x0000000004B0E000-memory.dmp

                Filesize

                632KB

              • memory/4036-2-0x0000000004B10000-0x0000000004C2B000-memory.dmp

                Filesize

                1.1MB

              • memory/4548-18-0x0000000002F40000-0x0000000002FD3000-memory.dmp

                Filesize

                588KB

              • memory/4568-20-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/4568-21-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB

              • memory/4568-23-0x0000000000400000-0x0000000000537000-memory.dmp

                Filesize

                1.2MB