General

  • Target

    d89183dddceaaed625f4be9cdbcafbc68af7879fd82a714c414e0d3257785238

  • Size

    749KB

  • Sample

    230329-138xesbf9x

  • MD5

    4b4aadf3ad2fc2ce44a0488a3033faba

  • SHA1

    2f7d9b1075e504fcfb21eda5fb94986d97a394c3

  • SHA256

    d89183dddceaaed625f4be9cdbcafbc68af7879fd82a714c414e0d3257785238

  • SHA512

    958ee461bcf680075dca11d6ac0a8cbdef5b3ee22654d90a485f6d11011591801fef0c861ebfa961f7dcf4caabf1ce32394f5070204a5f792d958ed79017bd37

  • SSDEEP

    12288:8qfFUJibCC0bnQtZTU+OCYdZ1H6O6ZNEm13LJhmScz964UT50HbELVNJ0miU4nqq:89ibCRn2I+O9dHH6O6ZNb0ScQ4UNwciF

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .jywd

  • offline_id

    MEMHlobHgXqvmTWaMsLcwGZhDOd00bblO1yevst1

  • 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-fkW8qLaCVQ 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: 0675JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.2

Botnet

5df88deb5dde677ba658b77ad5f60248

C2

https://steamcommunity.com/profiles/76561199489580435

https://t.me/tabootalks

Attributes
  • profile_id_v2

    5df88deb5dde677ba658b77ad5f60248

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36 OPR/91.0.4516.79

Targets

    • Target

      d89183dddceaaed625f4be9cdbcafbc68af7879fd82a714c414e0d3257785238

    • Size

      749KB

    • MD5

      4b4aadf3ad2fc2ce44a0488a3033faba

    • SHA1

      2f7d9b1075e504fcfb21eda5fb94986d97a394c3

    • SHA256

      d89183dddceaaed625f4be9cdbcafbc68af7879fd82a714c414e0d3257785238

    • SHA512

      958ee461bcf680075dca11d6ac0a8cbdef5b3ee22654d90a485f6d11011591801fef0c861ebfa961f7dcf4caabf1ce32394f5070204a5f792d958ed79017bd37

    • SSDEEP

      12288:8qfFUJibCC0bnQtZTU+OCYdZ1H6O6ZNEm13LJhmScz964UT50HbELVNJ0miU4nqq:89ibCRn2I+O9dHH6O6ZNb0ScQ4UNwciF

    • 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