General

  • Target

    file

  • Size

    1.8MB

  • Sample

    231004-ya2arsgd96

  • MD5

    ee820ce41f07e371136ade6b830c8376

  • SHA1

    8d7708f162f9fa9fa2b844107728ba3b67846050

  • SHA256

    4c2630c919499937b6e218c5086a18f005cd2f32f9e08152109ae102604673d9

  • SHA512

    abf99cdbf1477d0d90ccf8630753aba5fd29a56330ab15d7b76d3e0df808437795444d01025413f37ddb17f696825a182a5f476162db512b8112f4e6fb9e6833

  • SSDEEP

    49152:Sf6yd3w8oRhPMIJHnkWPaYtgTGdqxjzgp:fyd3w930IJH9RKwq1z

Malware Config

Extracted

Family

mystic

C2

http://5.42.92.211/loghub/master

Extracted

Family

redline

Botnet

frant

C2

77.91.124.55:19071

Extracted

Family

smokeloader

Version

2022

C2

http://77.91.68.29/fks/

rc4.i32
rc4.i32

Extracted

Family

redline

Botnet

gigant

C2

77.91.124.55:19071

Extracted

Family

amadey

Version

3.89

C2

http://77.91.124.1/theme/index.php

Attributes
  • install_dir

    fefffe8cea

  • install_file

    explothe.exe

  • strings_key

    36a96139c1118a354edf72b1080d4b2f

rc4.plain

Extracted

Family

redline

Botnet

@ytlogsbot

C2

176.123.4.46:33783

Targets

    • Target

      file

    • Size

      1.8MB

    • MD5

      ee820ce41f07e371136ade6b830c8376

    • SHA1

      8d7708f162f9fa9fa2b844107728ba3b67846050

    • SHA256

      4c2630c919499937b6e218c5086a18f005cd2f32f9e08152109ae102604673d9

    • SHA512

      abf99cdbf1477d0d90ccf8630753aba5fd29a56330ab15d7b76d3e0df808437795444d01025413f37ddb17f696825a182a5f476162db512b8112f4e6fb9e6833

    • SSDEEP

      49152:Sf6yd3w8oRhPMIJHnkWPaYtgTGdqxjzgp:fyd3w930IJH9RKwq1z

    • 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.

    • Detect Mystic stealer payload

    • Detects Healer an antivirus disabler dropper

    • Healer

      Healer an antivirus disabler dropper.

    • Modifies Windows Defender Real-time Protection settings

    • Mystic

      Mystic is an infostealer written in C++.

    • 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.

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • 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

    • Windows security modification

    • 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.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks