General

  • Target

    1.bin.bin.zip

  • Size

    642KB

  • Sample

    230425-vzld3adf8x

  • MD5

    fb01fde5df1cb1a7cf4328fed8c56c25

  • SHA1

    35e0e57e39e6048d3c3568c000a02f0c66826a38

  • SHA256

    38957dd23de6288c1a0d84556d4c55843a33e0b10a96be0d209a821f2978a889

  • SHA512

    c430007a8bb2a4fbd240caf8248faa0782c0e134f14ee079113774309d2e70bfd9ed817a56ff69ea872439a0487976f7317d604db3ac930f8e62fe80bbe4ae01

  • SSDEEP

    12288:+ZuV9lsFMOhYj2/NsJ/M438YTsMN9WNNgstvVPSn6j6q26DErohi7oWqqgd1rxCr:MuV9OGI60DPhvk6b26Zh2oqgd1rx1ITD

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .coty

  • offline_id

    O8Ao46dcCReRPC4I1PGMYsRFFc9WI5eOp0O3MFt1

  • payload_url

    http://colisumy.com/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-EPBZCVAS8s 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: 0692JOsie

rsa_pubkey.plain

Extracted

Family

vidar

Version

3.6

Botnet

5cb879265de0011bfc7588d5d251aee6

C2

https://steamcommunity.com/profiles/76561199499188534

https://t.me/nutalse

Attributes
  • profile_id_v2

    5cb879265de0011bfc7588d5d251aee6

  • user_agent

    Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36

Targets

    • Target

      1.bin.bin

    • Size

      742KB

    • MD5

      d24c537fb5eb6d0971b50bd0a7ae069e

    • SHA1

      1e48205e2e4e8e013e4010b7bb99d642567a5860

    • SHA256

      505b1ba56111898bec9423264ff12643c5e793fbcdbc2559bc9694cee990bec1

    • SHA512

      e7c8cb2e4a1f0b0faeba22e62588310990a56a89e32ba61b056283b85ad4f091843b645414527d48410601569d4be1e68cbe07d7cb74ebaccc552acf669a826b

    • SSDEEP

      12288:oKVoCbfsRzMz20j5Ex89MIgjgzwgWv9zXcgaHCuIAxOZK6VM9D7XB1:oKVoCbEgjexp9UUryHCuI2OZBqR

    • 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