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
    145s
  • 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 02:46

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General

  • Target

    2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe

  • Size

    1.1MB

  • MD5

    b44a4cb8600e10c1c9fc218f1af0abdb

  • SHA1

    64a3c362ab62d76dc9e589ec0d728592b830c71f

  • SHA256

    e5d1067f803ffebbca20c29d6be72c150ffbc23a2ba5c017a68bbd70ba6eb451

  • SHA512

    8e78aee3d63d461f1fb77f2a9ac2aaa96f967d2f54d7077175007446362c21244a63e17571847c1681538f7c507df71b5e27bea3889c1ce8436f5b1096b5fe8e

  • SSDEEP

    24576:ZBUIKn/vwOXGUXAjCymYZiVtElVIBT2roqnTSSxWeT/dRPOO8bWQHUq7:F0dwAYZt6C31WeTVRPOhb7Uq7

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
  • Renames multiple (167) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

    ransomware
  • 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 5 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 8 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
    "C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_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:1308
    • C:\Windows\SysWOW64\icacls.exe
      icacls "C:\Users\Admin\AppData\Local\4f956820-e07d-4a9f-8b30-d6d70ed64a46" /deny *S-1-1-0:(OI)(CI)(DE,DC)
      2⤵
      • Modifies file permissions
      • System Location Discovery: System Language Discovery
      PID:4716
    • C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
      "C:\Users\Admin\AppData\Local\Temp\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe" --Admin IsNotAutoStart IsNotTask
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      PID:3248
  • C:\Users\Admin\AppData\Local\4f956820-e07d-4a9f-8b30-d6d70ed64a46\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
    C:\Users\Admin\AppData\Local\4f956820-e07d-4a9f-8b30-d6d70ed64a46\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe --Task
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    PID:4308

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

    0a50576e9b2d2c47e4ec27a7446c200c

    SHA1

    4e85fb916bf199013a2bbb0084f31332bd810343

    SHA256

    e2782f49080e37e83b662685f45bab8748d5d33530287d26b8a6ac091827d409

    SHA512

    9be829761b4a14f47ddaa2b7ec61c5cc36a3afd1ff1e0e247847be5e1a2ef731d2ebb696fd7ec2f160cbbc040bdcb7d8d0c5eb4068205f981319a6aac2f4f994

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

    170B

    MD5

    f6f78c5adb5369b43429913d999bc10c

    SHA1

    57ebbd0314158bd0a3aa85d673745c3b56456f0d

    SHA256

    99a8beea8b0675205c7e8456539407b9dcac648a441c940a4070c6c6da8849ac

    SHA512

    d42e9fd3ef0a6e5f98e2abe42adb7ad1b81af2b89385cfdf61812ca0eaaf2f726b9dd90c3a68b09a9864c6a513e7619f5687df2fd3c592af43ce84f556e37606

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  • C:\Users\Admin\AppData\Local\4f956820-e07d-4a9f-8b30-d6d70ed64a46\2024-09-06_b44a4cb8600e10c1c9fc218f1af0abdb_stop.exe
    Filesize

    1.1MB

    MD5

    b44a4cb8600e10c1c9fc218f1af0abdb

    SHA1

    64a3c362ab62d76dc9e589ec0d728592b830c71f

    SHA256

    e5d1067f803ffebbca20c29d6be72c150ffbc23a2ba5c017a68bbd70ba6eb451

    SHA512

    8e78aee3d63d461f1fb77f2a9ac2aaa96f967d2f54d7077175007446362c21244a63e17571847c1681538f7c507df71b5e27bea3889c1ce8436f5b1096b5fe8e

    Download Submit