Overview

overview

10

Static

static

10

2024-09-06...op.exe

windows7-x64

10

2024-09-06...op.exe

windows10-2004-x64

10

Analysis

  • max time kernel
    95s
  • max time network
    123s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    06/09/2024, 02:41

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General

  • Target

    2024-09-06_86dbb6ed19cb1e8f2da1c3dfa22f32b0_stop.exe

  • Size

    1.1MB

  • MD5

    86dbb6ed19cb1e8f2da1c3dfa22f32b0

  • SHA1

    528ac12a59b58fab81b25500384a65e5d6d23a84

  • SHA256

    0ba115b3fee2afb35dee040675291100006d24a9684232be8c730f166b3b431f

  • SHA512

    e2e9bb68dd565b530cf451d5a7e37f66c110859126407eb1c12ffb8ec5f05cd36cc7fc931cf69e290b0901834c4530d372fec3c4f0c76c16fdf7f0459ff57b61

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8OWQHUq7:F0dwAYZt6C31WeTVRPOhO7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://rlrz.org/lancer/get.php

Attributes
  • extension

    .rivd

  • offline_id

    WbO7bkwHxaepEmevfYYUBNgcxNJGpd7hoNKokRt1

  • payload_url

    http://znpst.top/dl/build2.exe

    http://rlrz.org/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. You can get and look video overview decrypt tool: https://we.tl/t-CcXGxzXf71 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: 0342gSd743d

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.

  • 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\2024-09-06_86dbb6ed19cb1e8f2da1c3dfa22f32b0_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_86dbb6ed19cb1e8f2da1c3dfa22f32b0_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:228
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\27e1d14d-23b2-46ec-84b7-1ea7c8385d8d" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:2196
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_86dbb6ed19cb1e8f2da1c3dfa22f32b0_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_86dbb6ed19cb1e8f2da1c3dfa22f32b0_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3448

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

    f97223820fb379a97255b770aac80f63

    SHA1

    03f7da2387f9f3174380fe8268c3182b05022bfb

    SHA256

    96b58a72bd2b6622e9079e347931295a058f2e49393072e99ab4f5652ee391ba

    SHA512

    b79b0314309864923a188ce28eec3cd305fefad96fb7f34554aa28280e0d9417c7450625b4d267c614cb47faf295c8f43aa4f799b3b2c3cbbbed84e81e1f0c71

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

    170B

    MD5

    895826358c2e3c66a722998342e6afaf

    SHA1

    c51ff900dbed61dd19878faa5532225d67084650

    SHA256

    346357b3cca8e34064ece538a86ba89b0011537bd16a4704ae20cf252461ad5e

    SHA512

    8d3423c8ffda5248931d7ddd00aed2545749324a2dedff00fb0644d8f0524d1a4e1c38abb829f2b6e118e90a825f782026321ebfb2ce702075c0500b50887465

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  • C:\Users\Admin\AppData\Local\27e1d14d-23b2-46ec-84b7-1ea7c8385d8d\2024-09-06_86dbb6ed19cb1e8f2da1c3dfa22f32b0_stop.exe
    Filesize

    1.1MB

    MD5

    86dbb6ed19cb1e8f2da1c3dfa22f32b0

    SHA1

    528ac12a59b58fab81b25500384a65e5d6d23a84

    SHA256

    0ba115b3fee2afb35dee040675291100006d24a9684232be8c730f166b3b431f

    SHA512

    e2e9bb68dd565b530cf451d5a7e37f66c110859126407eb1c12ffb8ec5f05cd36cc7fc931cf69e290b0901834c4530d372fec3c4f0c76c16fdf7f0459ff57b61

    Download Submit