General

  • Target

    a2a25a11d03c661d87d97e0a4dad239319ec0fe07bd058dee73d0f564c5c4d01

  • Size

    307KB

  • Sample

    221123-a12gfsaa7v

  • MD5

    7509f9c516e604f0bc4910e803d8663b

  • SHA1

    335366213d442c6c95089137d38c60159a3d47f4

  • SHA256

    a2a25a11d03c661d87d97e0a4dad239319ec0fe07bd058dee73d0f564c5c4d01

  • SHA512

    770dd92eacb93a3fc7963681139d27350e4db703e7b30b756671c888e25f28659b9409e82b7bd90d32c4598a6afe1184cb83fb46e503d37029847cc9f8068219

  • SSDEEP

    6144:0uePlEadOyvgW3jmqq42q86rX4lO6fE6N:0BldbvB9q4xNrDJ6N

Malware Config

Extracted

Family

djvu

C2

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

Attributes
  • extension

    .tcbu

  • offline_id

    JBPpFMvWlKMsKlJRmPJl5e09RSnYrRJya1oX8xt1

  • 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

55.8

Botnet

517

C2

https://t.me/headshotsonly

https://steamcommunity.com/profiles/76561199436777531

Attributes
  • profile_id

    517

Extracted

Family

redline

C2

185.215.113.83:60722

Attributes
  • auth_value

    674feb1d15af397f9322eb62587035b3

Targets

    • Target

      a2a25a11d03c661d87d97e0a4dad239319ec0fe07bd058dee73d0f564c5c4d01

    • Size

      307KB

    • MD5

      7509f9c516e604f0bc4910e803d8663b

    • SHA1

      335366213d442c6c95089137d38c60159a3d47f4

    • SHA256

      a2a25a11d03c661d87d97e0a4dad239319ec0fe07bd058dee73d0f564c5c4d01

    • SHA512

      770dd92eacb93a3fc7963681139d27350e4db703e7b30b756671c888e25f28659b9409e82b7bd90d32c4598a6afe1184cb83fb46e503d37029847cc9f8068219

    • SSDEEP

      6144:0uePlEadOyvgW3jmqq42q86rX4lO6fE6N:0BldbvB9q4xNrDJ6N

    • Amadey

      Amadey bot is a simple trojan bot primarily used for collecting reconnaissance information.

    • DcRat

      DarkCrystal(DC) is a new .NET RAT active since June 2019 capable of loading additional plugins.

    • Detected Djvu ransomware

    • Detects Smokeloader packer

    • Djvu Ransomware

      Ransomware which is a variant of the STOP family.

    • RedLine

      RedLine Stealer is a malware family written in C#, first appearing in early 2020.

    • RedLine payload

    • SmokeLoader

      Modular backdoor trojan in use since 2014.

    • Vidar

      Vidar is an infostealer based on Arkei stealer.

    • Blocklisted process makes network request

    • 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.

    • Uses the VBS compiler for execution

    • Accesses 2FA software files, possible credential harvesting

    • Accesses Microsoft Outlook profiles

    • 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.

    • Legitimate hosting services abused for malware hosting/C2

    • 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