Overview

overview

10

Static

static

3

F2D3.exe

windows7-x64

10

F2D3.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_d2c996657cc071187c1e84cd4720849addafb5f59a24d61b5ae49c646d0e748b

  • Size

    690KB

  • Sample

    241227-btfrvaxqgj

  • MD5

    1e9d36b563e2f8278e9668a63975bb4c

  • SHA1

    cf42a2e616b4f840c58c12de38ee4628dd079bf7

  • SHA256

    d2c996657cc071187c1e84cd4720849addafb5f59a24d61b5ae49c646d0e748b

  • SHA512

    5694be9c79f7a0ed60cd0b8790c40aa3081459f1be87f28fb2382313682b64edfeebe1fc8d3d194db5ff6128f46693862fa2e8dcafaec99a42861897649669be

  • SSDEEP

    12288:8L4hGTFoaEmMaaKGAyKg0mxf/AWPbesU6cEw1MazdfavyMtfiFIU3qEykvY:gTFsaCAyKgHf/TPbK4wxmyLFIkzRY

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .errz

  • offline_id

    e8w5MeiBrZVoHLoloPm9MNlKBzXH70BB3B2KQ7t1

  • payload_url

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

    http://ugll.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-2w6I3WpXEh 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: 0479JIjdm

rsa_pubkey.plain

Targets

    • Target

      F2D3.bin

    • Size

      833KB

    • MD5

      f48eb008b7dc078455742f66db4aa3c6

    • SHA1

      9fa4e5e57e1845f8127bf8786567d52631a485d2

    • SHA256

      57f531bb398323409f0e32d3d570eca0fc40c9aceda9baf4a6a0b92e02610f47

    • SHA512

      7a5c575b4556ad0f9d845eafc14eb9d523b9ae98003948c4aa48f3eca0b110341fa14db573ea0f39e6269b13cfdb7871294d6d81a3409371441e1e4f997ff88a

    • SSDEEP

      12288:wPb2JYkhvjPLBuCLgYWoQqMQTvU+w2ohi6927TNNlzgX8QjltSR4YgxQluu:wlSbLBucZ5nTMVX4hNZnQjAQyu

    Score
    10/10
    djvudiscoverypersistenceransomware

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

      ransomwaredjvu

    • Djvu family

      djvu

    • Checks computer location settings

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

    • Modifies file permissions

      discovery

    • Adds Run key to start application

      persistence

    • Looks up external IP address via web service

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

    • Suspicious use of SetThreadContext

    behavioral1behavioral2

MITRE ATT&CK Enterprise v15

Tasks