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General

  • Target

    c5de56a2378408c7ae0617935a6b93eec289ff0d54894f28a261beb7bf03fc63

  • Size

    791KB

  • Sample

    230308-aeafvada28

  • MD5

    2ced2fef3d834a40e2ce021fe2f2cd10

  • SHA1

    4094cb3351e549142ff3551d600fc3c334c0dce9

  • SHA256

    c5de56a2378408c7ae0617935a6b93eec289ff0d54894f28a261beb7bf03fc63

  • SHA512

    83099d9435c84100dbe3ae484e407c16f86c76e1bccdf268e1589519d2a0b5598a9abdda3e2231477ada2f0ed457c9a1f281130b89134bf3408cc682870a918e

  • SSDEEP

    12288:YSkHDpgwnv5+3iSk2n49oru40fNLX49c56HCFX+/H769tct4Zc1U8:YVRSiSRru40fNLX+OX6O9tk1n

Malware Config

Extracted

Family

djvu

C2

http://zexeq.com/test1/get.php

Attributes
  • extension

    .cosw

  • offline_id

    fTU4hYOJ0niv7WAg9utRTzxXv2TcoEvGPJhzIot1

  • payload_url

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

    http://zexeq.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. You can get and look video overview decrypt tool: https://we.tl/t-hhA4nKfJBj 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: 0658JOsie

rsa_pubkey.plain

Targets

    • Target

      c5de56a2378408c7ae0617935a6b93eec289ff0d54894f28a261beb7bf03fc63

    • Size

      791KB

    • MD5

      2ced2fef3d834a40e2ce021fe2f2cd10

    • SHA1

      4094cb3351e549142ff3551d600fc3c334c0dce9

    • SHA256

      c5de56a2378408c7ae0617935a6b93eec289ff0d54894f28a261beb7bf03fc63

    • SHA512

      83099d9435c84100dbe3ae484e407c16f86c76e1bccdf268e1589519d2a0b5598a9abdda3e2231477ada2f0ed457c9a1f281130b89134bf3408cc682870a918e

    • SSDEEP

      12288:YSkHDpgwnv5+3iSk2n49oru40fNLX49c56HCFX+/H769tct4Zc1U8:YVRSiSRru40fNLX+OX6O9tk1n

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Modifies file permissions

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

    • Accesses 2FA software files, possible credential harvesting

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Checks installed software on the system

      Looks up Uninstall key entries in the registry to enumerate software on the system.

    • 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

MITRE ATT&CK Enterprise v6

Tasks