Overview

overview

10

Static

static

10

2024-10-30...op.exe

windows7-x64

10

2024-10-30...op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    134s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-10-2024 02:46

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General

  • Target

    2024-10-30_3439f3b37ecb66f7e3b5445ca83dff88_stop.exe

  • Size

    1.1MB

  • MD5

    3439f3b37ecb66f7e3b5445ca83dff88

  • SHA1

    d5d16f63fcb21a5348b56e172907d5b54df6d129

  • SHA256

    88b66e8ae5adcc9ae9f7c98cf1f2207e0ea3f378d3b01378990b178e0b91abaa

  • SHA512

    76999eaa8ad66aa2ed4065a0c17fac10684c42df38ec6872901bba24a88b7e8bb25d1d8eafc8a89f7acba10b81d6dc8af5db6dc9212f99e527e35572f777d598

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8wWQHUq7:F0dwAYZt6C31WeTVRPOhw7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test1/get.php

Attributes
  • extension

    .hlas

  • offline_id

    vyhLHcV0DMKjS0CgDoJGF0yJ299laBK7lZQM9Tt1

  • payload_url

  • 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. 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: 0878qual

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu
  • Djvu family
    djvu
  • 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
    discovery
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 3 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-10-30_3439f3b37ecb66f7e3b5445ca83dff88_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-10-30_3439f3b37ecb66f7e3b5445ca83dff88_stop.exe"
    1⤵
    • Checks computer location settings
    • Adds Run key to start application
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:908
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\5d7d206d-61d1-4f4d-8e99-5712c665bd17" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:3180
    • C:\Users\Admin\AppData\Local\Temp\2024-10-30_3439f3b37ecb66f7e3b5445ca83dff88_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-10-30_3439f3b37ecb66f7e3b5445ca83dff88_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4952

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\8B2B9A00839EED1DFDCCC3BFC2F5DF12
    Filesize

    1KB

    MD5

    67e486b2f148a3fca863728242b6273e

    SHA1

    452a84c183d7ea5b7c015b597e94af8eef66d44a

    SHA256

    facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb

    SHA512

    d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e

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  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\B46811C17859FFB409CF0E904A4AA8F8
    Filesize

    436B

    MD5

    971c514f84bba0785f80aa1c23edfd79

    SHA1

    732acea710a87530c6b08ecdf32a110d254a54c8

    SHA256

    f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895

    SHA512

    43dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58

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  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
    Filesize

    174B

    MD5

    0c74c6de989fefb82ba45173a47f3035

    SHA1

    3bc15647e3e5d56138407a174ac46c68d12cfc5b

    SHA256

    17f4d303ecf0f1e5e1f3041509571c4a8111e153803a0ef2bce339005b6bd0d5

    SHA512

    246f52044a9a620cc55bdca8291d4a15146762482399193b77fae767907a72fae8fc0460b9e4bb1bed8819fa09395962486fde24104f45977f67362e7df77da0

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  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
    Filesize

    170B

    MD5

    20cbe079b95d1d611691ce5f7fead3af

    SHA1

    8219d65aa7bf43e7bd13e79fa49992db388a024b

    SHA256

    cd044310f23ebaa07dd09c44088dd60ec4fc83cb87f5b34d2dd7f875f98832bc

    SHA512

    ae4761f897ab4ec44413ec1018df74d561033bc6457e1098a74b00b1711e846cf380ad8a97e14969b908af7782ca176f1eca075002752fd47328b5788b6ef061

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  • C:\Users\Admin\AppData\Local\5d7d206d-61d1-4f4d-8e99-5712c665bd17\2024-10-30_3439f3b37ecb66f7e3b5445ca83dff88_stop.exe
    Filesize

    1.1MB

    MD5

    3439f3b37ecb66f7e3b5445ca83dff88

    SHA1

    d5d16f63fcb21a5348b56e172907d5b54df6d129

    SHA256

    88b66e8ae5adcc9ae9f7c98cf1f2207e0ea3f378d3b01378990b178e0b91abaa

    SHA512

    76999eaa8ad66aa2ed4065a0c17fac10684c42df38ec6872901bba24a88b7e8bb25d1d8eafc8a89f7acba10b81d6dc8af5db6dc9212f99e527e35572f777d598

    Download Submit