General

  • Target

    13a5ac3426c7fe528b0a5436ca0928ab81ad39247799e7a538d118baa8854810

  • Size

    706KB

  • Sample

    221124-x2k77adg34

  • MD5

    1c38bf84b747c8bc3d650f4bdfcb0850

  • SHA1

    608c077f04401b6e5ae27a54c88c7fc9e688e16d

  • SHA256

    13a5ac3426c7fe528b0a5436ca0928ab81ad39247799e7a538d118baa8854810

  • SHA512

    c1b79a16f6c2182bc0a53f31c3e8da4f783857fd914864a6dbbf0e1739725a2136a037decb44e2e72d5d17a562da8295571abc87458414132b17758646023256

Malware Config

Extracted

Family

djvu

C2

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

Attributes
extension
.kcvp
offline_id
hlqzhQ6w5SquNDF4Ul2XBDJQkSIKbAT6rmRBTit1
payload_url
http://uaery.top/dl/build2.exe
http://fresherlights.com/files/1/build3.exe
ransomnote
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rsa_pubkey.plain

Extracted

Family

vidar

Version

55.9

Botnet

517

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
profile_id
517

Targets

    • Target

      13a5ac3426c7fe528b0a5436ca0928ab81ad39247799e7a538d118baa8854810

    • Size

      706KB

    • MD5

      1c38bf84b747c8bc3d650f4bdfcb0850

    • SHA1

      608c077f04401b6e5ae27a54c88c7fc9e688e16d

    • SHA256

      13a5ac3426c7fe528b0a5436ca0928ab81ad39247799e7a538d118baa8854810

    • SHA512

      c1b79a16f6c2182bc0a53f31c3e8da4f783857fd914864a6dbbf0e1739725a2136a037decb44e2e72d5d17a562da8295571abc87458414132b17758646023256

    • 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

    • 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 Matrix

Command and Control

    Credential Access

    Execution

      Exfiltration

        Impact

          Initial Access

            Lateral Movement

              Privilege Escalation