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General

  • Target

    1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294.exe

  • Size

    838KB

  • Sample

    221103-rgwkjaddak

  • MD5

    693c542541c092a2919a76016021f7a5

  • SHA1

    4f655e256571b98b11e522f3cda3af6e158c9d9d

  • SHA256

    1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294

  • SHA512

    e28bef12d2b00e887833507b32bcdb5a7b46256608d519182d8ba6fa33329ca0fdcbfb27fd6636141063d25334055f0d2e7353b27356a2531c48c309c970a248

  • SSDEEP

    12288:fnhhTDJhDVtMqBhS36oZRk3FCR+c0X15x/qX9z1kxTeG7:vhhTDfDQqHS3RZKVEO/yz1oTe

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .bowd

  • offline_id

    oHp5e4SJxdFtxfvKYmeX06F4C5cn0EcsF5Ak9Wt1

  • payload_url

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

    http://fresherlights.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-dyi5UcwIT9 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: 0594Jhyjd

rsa_pubkey.plain

Targets

    • Target

      1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294.exe

    • Size

      838KB

    • MD5

      693c542541c092a2919a76016021f7a5

    • SHA1

      4f655e256571b98b11e522f3cda3af6e158c9d9d

    • SHA256

      1f81cb9bfb310048a11ee5c309ce7cdc9f6cfdd334b917830b2a9a78e5786294

    • SHA512

      e28bef12d2b00e887833507b32bcdb5a7b46256608d519182d8ba6fa33329ca0fdcbfb27fd6636141063d25334055f0d2e7353b27356a2531c48c309c970a248

    • SSDEEP

      12288:fnhhTDJhDVtMqBhS36oZRk3FCR+c0X15x/qX9z1kxTeG7:vhhTDfDQqHS3RZKVEO/yz1oTe

    • Detected Djvu ransomware

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • Downloads MZ/PE file

    • Executes dropped EXE

    • Checks computer location settings

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

    • 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