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
    144s
  • max time network
    145s
  • 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 02:50

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General

  • Target

    2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe

  • Size

    1.1MB

  • MD5

    d347d2311e222e500c2c57177da3401b

  • SHA1

    4286cbc13cd3c98390cd64f29d02589697b39390

  • SHA256

    1775ad37586327ca8ed067f898056f7a6aa5d6037d2a319dd372e54547024872

  • SHA512

    3335eba799b54cc76c23862d2c41c55fe91d15163ca937a7e937ff93ca1e7d2ab283cc36bac5ac7bcdfb41d861aa851bd6b624303f718727574a54671812ed37

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8TWQHUq7:F0dwAYZt6C31WeTVRPOhT7Uq7

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .sspq

  • offline_id

    ppmn5q6DzrybvhIkCuuqaearFxJ8Rc3difSaWft1

  • 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-eglcxvZv1s 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: 0304ewgfDd

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\2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_d347d2311e222e500c2c57177da3401b_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:4768
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\135ed5e3-9416-429f-a982-11eb6db2f86c" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:4924
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:4032
  • C:\Users\Admin\AppData\Local\135ed5e3-9416-429f-a982-11eb6db2f86c\2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe
    C:\Users\Admin\AppData\Local\135ed5e3-9416-429f-a982-11eb6db2f86c\2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe --Task
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:4080

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

    93836275d9ab4a7e1a586a333473c622

    SHA1

    d5fe19ed9be1a437c15b03aa9640f38e7e430aa9

    SHA256

    640d325416519e0c67f49b282a902f08c53fbe38f00bb0e85d190f71f8a02622

    SHA512

    72adddaf6e9f87366b50dd77614af77ad850fbea97008ce42ea6411124c5aba9378b4eff7074a43b28d8871a3d26217a26b7fdabe9f59adde209184325fc38ab

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

    170B

    MD5

    0a7ad3768902fb00711042abb105ecb0

    SHA1

    93c12a0e1050b885211e439126ca1d7e03de180d

    SHA256

    9b1bbe7ff62c5524f641f6f57d542e3ae9ad59620ff8b2855c37fc2495ee2ff6

    SHA512

    8072a0563c9f07114047f4b40ef53d67953046746a05247b25a129f39b0dc87754918730f888f6d4a999eb33b64269150d9b65daa462a606507be590cf00dde0

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  • C:\Users\Admin\AppData\Local\135ed5e3-9416-429f-a982-11eb6db2f86c\2024-09-06_d347d2311e222e500c2c57177da3401b_stop.exe
    Filesize

    1.1MB

    MD5

    d347d2311e222e500c2c57177da3401b

    SHA1

    4286cbc13cd3c98390cd64f29d02589697b39390

    SHA256

    1775ad37586327ca8ed067f898056f7a6aa5d6037d2a319dd372e54547024872

    SHA512

    3335eba799b54cc76c23862d2c41c55fe91d15163ca937a7e937ff93ca1e7d2ab283cc36bac5ac7bcdfb41d861aa851bd6b624303f718727574a54671812ed37

    Download Submit