Overview

overview

10

Static

static

3

JaffaCakes...51.exe

windows7-x64

10

JaffaCakes...51.exe

windows10-2004-x64

10

Sharing

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General

  • Target

    JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51

  • Size

    794KB

  • Sample

    241223-s17btatlgr

  • MD5

    43a54331fd7de4f56a2c17941f346637

  • SHA1

    238938de018a0e38c19a2d2a38287ac10ea92209

  • SHA256

    a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51

  • SHA512

    0d3dfb1913a0633ed42aec834fb6fec33c05b4f91ca21ad0689572a7c3eedaa42d435ae0913f0de547fd8c20a8bedd7e58eec5e63c95b43666d370728bfecc53

  • SSDEEP

    12288:phZ/cYe2dxXbiJbjlUo77KOcY4iwb7ay5f3puUj8Ny0eiJRaSEWvgwY:tze2zuWoHp4iPc31Aw0bljvv

Score
10/10
djvudiscoverypersistenceransomware

Malware Config

Extracted

Family

djvu

C2

http://ugll.org/test1/get.php

Attributes
  • extension

    .nnuz

  • offline_id

    vBBkNb2o254Xzi3oCcyyfpBNyU9yOZKLh1HH5Mt1

  • 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-wYSZeUnrpa 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: 0485JIjdm

rsa_pubkey.plain

Targets

    • Target

      JaffaCakes118_a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51

    • Size

      794KB

    • MD5

      43a54331fd7de4f56a2c17941f346637

    • SHA1

      238938de018a0e38c19a2d2a38287ac10ea92209

    • SHA256

      a77ddde732c33e1faf100031351f141b7afa88525c5ac6a03805f7e59720ad51

    • SHA512

      0d3dfb1913a0633ed42aec834fb6fec33c05b4f91ca21ad0689572a7c3eedaa42d435ae0913f0de547fd8c20a8bedd7e58eec5e63c95b43666d370728bfecc53

    • SSDEEP

      12288:phZ/cYe2dxXbiJbjlUo77KOcY4iwb7ay5f3puUj8Ny0eiJRaSEWvgwY:tze2zuWoHp4iPc31Aw0bljvv

    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