General

  • Target

    file

  • Size

    1.1MB

  • Sample

    231007-ekf8ssbc92

  • MD5

    686afd2a2d783cf0934b497a6a362b6d

  • SHA1

    b625263b63543e6ced3cc9057ca1d8a26e67cc51

  • SHA256

    2f010466c5ea6352d6a4c0f1d0cce95592c124900db7b3c7a3e3340e0149d768

  • SHA512

    f8f5b7dc86ac626126bd28a07e1663664fd7c2831a6c3bb839958ea563c4c530de7d9542df81b3c09cceb1f4809c2554ac833df730c5960be660aa9dc91962bc

  • SSDEEP

    24576:uybXjRlG68ZvaUB25KUkoK8/QH3gVlSrrdj1bd9n:9jVf8Zv/05Kn8/CalSrr51bd9

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

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

amadey

Version

3.83

C2

http://5.42.65.80/8bmeVwqx/index.php

Attributes
  • install_dir

    207aa4515d

  • install_file

    oneetx.exe

  • strings_key

    3e634dd0840c68ae2ced83c2be7bf0d4

rc4.plain

Extracted

Family

redline

Botnet

gigant

C2

77.91.124.55:19071

Extracted

Family

redline

Botnet

@ytlogsbot

C2

176.123.4.46:33783

Targets

    • Target

      file

    • Size

      1.1MB

    • MD5

      686afd2a2d783cf0934b497a6a362b6d

    • SHA1

      b625263b63543e6ced3cc9057ca1d8a26e67cc51

    • SHA256

      2f010466c5ea6352d6a4c0f1d0cce95592c124900db7b3c7a3e3340e0149d768

    • SHA512

      f8f5b7dc86ac626126bd28a07e1663664fd7c2831a6c3bb839958ea563c4c530de7d9542df81b3c09cceb1f4809c2554ac833df730c5960be660aa9dc91962bc

    • SSDEEP

      24576:uybXjRlG68ZvaUB25KUkoK8/QH3gVlSrrdj1bd9n:9jVf8Zv/05Kn8/CalSrr51bd9

    • 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.

    • Blocklisted process makes network request

    • Downloads MZ/PE file

    • Checks computer location settings

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

    • Executes dropped EXE

    • Loads dropped DLL

    • Uses the VBS compiler for execution

    • Windows security modification

    • Accesses cryptocurrency files/wallets, possible credential harvesting

    • Adds Run key to start application

    • Detected potential entity reuse from brand microsoft.

    • Suspicious use of SetThreadContext

MITRE ATT&CK Enterprise v15

Tasks