Overview

overview

10

Static

static

10

2024-09-04...op.exe

windows7-x64

10

2024-09-04...op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    143s
  • max time network
    144s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04/09/2024, 03:46

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General

  • Target

    2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe

  • Size

    1.1MB

  • MD5

    591b5afb1f701910bb6b2a95e83b9f15

  • SHA1

    f3c0a74e0c38e75ec86195c83244831ae21cde58

  • SHA256

    25fee0d9c2bf841ad0c0271a34e450d2a82dcc91d6fd7c669b9882fc436e06ea

  • SHA512

    a66af28164683d16522e4c2a446ccaf1c9f64cbd743747c25359a2dc31e011683c1e852a829361ec61b9cdd7479114823fb684e28c7fa8754fd173f3c9b1f4ea

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8SWQHUq7:F0dwAYZt6C31WeTVRPOhS7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://vrta.top/nddddhsspen6/get.php

Attributes
  • extension

    .qscx

  • offline_id

    1CWYcKrbjXlx3TNdvKiBjYphw1eJfZy1dzTnE8t1

  • payload_url

    http://vrta.top/files/penelop/updatewin1.exe

    http://vrta.top/files/penelop/updatewin2.exe

    http://vrta.top/files/penelop/updatewin.exe

    http://vrta.top/files/penelop/3.exe

    http://vrta.top/files/penelop/4.exe

    http://vrta.top/files/penelop/5.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. You can get and look video overview decrypt tool: https://we.tl/t-V2fE396VPW Price of private key and decrypt software is $980. Discount 50% available if you contact us first 72 hours, that's price for you is $490. 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: 0303ewgfDd

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 1 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

    ransomwaredjvu
  • Checks computer location settings 2 TTPs 1 IoCs

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

  • Executes dropped EXE 1 IoCs
  • 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 4 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 4 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 6 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_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:460
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\4d899bc8-cc10-43f3-8527-8f72f76eca21" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:1644
    • C:\Users\Admin\AppData\Local\Temp\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:228
  • C:\Users\Admin\AppData\Local\4d899bc8-cc10-43f3-8527-8f72f76eca21\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe
    C:\Users\Admin\AppData\Local\4d899bc8-cc10-43f3-8527-8f72f76eca21\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe --Task
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:2276

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

    7fb5fa1534dcf77f2125b2403b30a0ee

    SHA1

    365d96812a69ac0a4611ea4b70a3f306576cc3ea

    SHA256

    33a39e9ec2133230533a686ec43760026e014a3828c703707acbc150fe40fd6f

    SHA512

    a9279fd60505a1bfeef6fb07834cad0fd5be02fd405573fc1a5f59b991e9f88f5e81c32fe910f69bdc6585e71f02559895149eaf49c25b8ff955459fd60c0d2e

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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

    6e4d5db4870b7ee13728002756519842

    SHA1

    c04560efef518d6141b06a6227869d099dba2e87

    SHA256

    c05782e5f4389aefc89dbed53bf093fd72b14bd046e7271afcc0653a7b3823b7

    SHA512

    cedc9d3fd6a323ab23d786c96fc90c98aec460e90291271f61fb80873c39e52de1194c218101db3af873db6ad278348aa0f85e8b9b91a3b3c4f9f6d481166d7b

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

    170B

    MD5

    cd5e54c2dc03872f26017df0bbd69b34

    SHA1

    ea95e80df7047b31414738f20a144f4382706014

    SHA256

    fb7399f57f0bd4c6edb725a5ad33994ddf6c8a77f6b0bd420637fc0772271f59

    SHA512

    116d3c1f0580df3ec2c31e9f90a111b052b629db6168a46b535787240103da5cd1904c608510bdd79962297f88341b89448c102510828c7085f2817932b82dce

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  • C:\Users\Admin\AppData\Local\4d899bc8-cc10-43f3-8527-8f72f76eca21\2024-09-04_591b5afb1f701910bb6b2a95e83b9f15_stop.exe
    Filesize

    1.1MB

    MD5

    591b5afb1f701910bb6b2a95e83b9f15

    SHA1

    f3c0a74e0c38e75ec86195c83244831ae21cde58

    SHA256

    25fee0d9c2bf841ad0c0271a34e450d2a82dcc91d6fd7c669b9882fc436e06ea

    SHA512

    a66af28164683d16522e4c2a446ccaf1c9f64cbd743747c25359a2dc31e011683c1e852a829361ec61b9cdd7479114823fb684e28c7fa8754fd173f3c9b1f4ea

    Download Submit