Analysis

  • max time kernel
    149s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240412-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240412-enlocale:en-usos:windows10-2004-x64system
  • submitted
    25-04-2024 12:54

General

  • Target

    e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe

  • Size

    777KB

  • MD5

    48d4294f3a64649dcb9759bb193275db

  • SHA1

    49f828f60cfffee57e49ed7f914c169d818235c3

  • SHA256

    e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9

  • SHA512

    6734b025313c47c9279561517f445eeddeb75dae5be93f9a651df503a56fe1e1193fe9b531372a54f1d1f4ac48548938dd9f375d5c1a5276665e28ca05902565

  • SSDEEP

    12288:i2M47t7YdXZj0H0qsSPz/jSNFBcARd36GL6j7ZgmiY4G:i2M4B65cXzKpcUKISmmic

Malware Config

Extracted

Family

djvu

C2

http://cajgtus.com/test2/get.php

Attributes
  • extension

    .bgzq

  • offline_id

    Z6iwSvCoAt8T8K2ROxecuXHPNHv7eDyWrc8Ks7t1

  • payload_url

    http://sdfjhuz.com/dl/build2.exe

    http://cajgtus.com/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. 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: https://wetransfer.com/downloads/54cdfd152fe98eedb628a1f4ddb7076420240421150208/403a27 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: 0864PsawqS

rsa_pubkey.plain

Signatures

  • Detected Djvu ransomware 17 IoCs
  • Djvu Ransomware

    Ransomware which is a variant of the STOP family.

  • 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
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Looks up external IP address via web service 3 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe
    "C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:724
    • C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe
      "C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe"
      2⤵
      • Checks computer location settings
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\SysWOW64\icacls.exe
        icacls "C:\Users\Admin\AppData\Local\bfe932e3-2575-4100-a02f-054847462462" /deny *S-1-1-0:(OI)(CI)(DE,DC)
        3⤵
        • Modifies file permissions
        PID:3508
      • C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe
        "C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe" --Admin IsNotAutoStart IsNotTask
        3⤵
        • Suspicious use of SetThreadContext
        • Suspicious use of WriteProcessMemory
        PID:4984
        • C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe
          "C:\Users\Admin\AppData\Local\Temp\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe" --Admin IsNotAutoStart IsNotTask
          4⤵
          • Suspicious behavior: EnumeratesProcesses
          PID:2488

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
    Filesize

    1KB

    MD5

    cb9e9c73d3688b51ee1899e25cd1cc7e

    SHA1

    b2d472d87ac099a708b7536b5c30e5e6f0d28b7e

    SHA256

    382e6d80f80afb665a9c3065602a8fb4a6c3ff73c06a0a6937ffc178466d97a2

    SHA512

    74f1d7c3c68c0ae4ebc7b1c270c2138f578b78b591d8c6af4b7bb56fd4f23e5cebdf9748e7045521c72c000e5a4f35adce8e62951470e65c531f95b26b52a54e

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
    Filesize

    724B

    MD5

    8202a1cd02e7d69597995cabbe881a12

    SHA1

    8858d9d934b7aa9330ee73de6c476acf19929ff6

    SHA256

    58f381c3a0a0ace6321da22e40bd44a597bd98b9c9390ab9258426b5cf75a7a5

    SHA512

    97ba9fceab995d4bef706f8deef99e06862999734ebe6a05832c710104479c6337cbf0a76e1c1e0f91566a61334dc100d837dfd049e20da765fe49def684f9c9

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\24BD96D5497F70B3F510A6B53CD43F3E_3A89246FB90C5EE6620004F1AE0EB0EA
    Filesize

    410B

    MD5

    167b00d24955b4503b1a2249e8c53cf5

    SHA1

    97721f600919d018e7e5f8dce711b548f2d1b16c

    SHA256

    5e65b6771375f17b841a97a56a911b5cd997cb6234f850016b9166506d41db93

    SHA512

    1f1f0f3817532c156c9d2c56dda5f01d3eee1111b95b1c70718daee6ac440e48f486e33b304ff481c081e3f3e62582205f788effcd564ab6cb8b9c5edae11fb2

  • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\CAF4703619713E3F18D8A9D5D88D6288_F2DAF19C1F776537105D08FC8D978464
    Filesize

    392B

    MD5

    d83adec536819f7654fa11a00e36b589

    SHA1

    fec2bebee537c4f4ac5eda9001224618d98395d2

    SHA256

    bb95b1ba3f37b3c28377d1a34c1371929739b0473928fb1378f4671cde7d352f

    SHA512

    8fc6a264a18556135b0da58e62c23b9d8f162202615ea90488ac9f632dbc228d838b60090236b7da1cf04959c690a693774d2d736b23ef732d56913549501289

  • C:\Users\Admin\AppData\Local\bfe932e3-2575-4100-a02f-054847462462\e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9.exe
    Filesize

    777KB

    MD5

    48d4294f3a64649dcb9759bb193275db

    SHA1

    49f828f60cfffee57e49ed7f914c169d818235c3

    SHA256

    e96eda3865b1b37a0c95e3ffcf3f08a17fed74fcfb3a9c25b0264850e5c1f4f9

    SHA512

    6734b025313c47c9279561517f445eeddeb75dae5be93f9a651df503a56fe1e1193fe9b531372a54f1d1f4ac48548938dd9f375d5c1a5276665e28ca05902565

  • memory/724-2-0x0000000004A40000-0x0000000004B5B000-memory.dmp
    Filesize

    1.1MB

  • memory/724-1-0x0000000003160000-0x0000000003200000-memory.dmp
    Filesize

    640KB

  • memory/2488-28-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-34-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-20-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-21-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-22-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-37-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-36-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-35-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-32-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-27-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/2488-29-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4264-6-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4264-15-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4264-3-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4264-4-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4264-5-0x0000000000400000-0x0000000000537000-memory.dmp
    Filesize

    1.2MB

  • memory/4984-18-0x0000000003130000-0x00000000031C3000-memory.dmp
    Filesize

    588KB