General

  • Target

    4b1af9151e630b14fa80f5826274d9b0e3b4117b81bdf49ada918ea7815b788c

  • Size

    186KB

  • Sample

    221123-gbqf8aga7y

  • MD5

    8635292b56f59b5416370b5b21a763ad

  • SHA1

    e3938cbff4a2f2a7c3dccb8c0869a1c978823f83

  • SHA256

    4b1af9151e630b14fa80f5826274d9b0e3b4117b81bdf49ada918ea7815b788c

  • SHA512

    d1a0c5d2b9d0d06695ca5a7b39b88a6baffc5e32f0376f5a7eb22973ff5742ca14900a878cd6d8ceb9043a866658fc53fb4a4165327978abca37b128b089013f

  • SSDEEP

    3072:1EKd7wz7ax5LsyXV4Wvjj551RbqMHbBIFuygEx+9IaSX2iRgg:Rd7XLdXeMBYMHlIFR09JV

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

Extracted

Family

amadey

Version

3.50

C2

193.56.146.174/g84kvj4jck/index.php

Targets

    • Target

      4b1af9151e630b14fa80f5826274d9b0e3b4117b81bdf49ada918ea7815b788c

    • Size

      186KB

    • MD5

      8635292b56f59b5416370b5b21a763ad

    • SHA1

      e3938cbff4a2f2a7c3dccb8c0869a1c978823f83

    • SHA256

      4b1af9151e630b14fa80f5826274d9b0e3b4117b81bdf49ada918ea7815b788c

    • SHA512

      d1a0c5d2b9d0d06695ca5a7b39b88a6baffc5e32f0376f5a7eb22973ff5742ca14900a878cd6d8ceb9043a866658fc53fb4a4165327978abca37b128b089013f

    • SSDEEP

      3072:1EKd7wz7ax5LsyXV4Wvjj551RbqMHbBIFuygEx+9IaSX2iRgg:Rd7XLdXeMBYMHlIFR09JV

    • 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.

    • 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