Overview

overview

10

Static

static

bf7b01b358...b2.exe

windows7_x64

10

bf7b01b358...b2.exe

windows10_x64

10

Sharing

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General

  • Target
    bf7b01b358903416117bc4de8e0861b2
  • Size 196KB
  • Sample210614-ye6rt9mdn2
  • SHA256 f2ed40ab9c2eb52484d79b485a78e2779dd300b7513eac17ec4e39fd4a9614a8
  • MD5 SHA1 SHA512
Score
10/10
asyncratmatiexkeyloggerpersistenceratspywarestealer

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.7B

C2

  • 127.0.0.1:4771

  • 136.144.41.4:4771

Mutex

  • AsyncMutex_6SI8OkPnk

Attributes
  • aes_key

    QC5yo2zkgXpQvYIuqVhwItzoZLTyoXrn

  • anti_detection

    false

  • autorun

    false

  • bdos

    false

  • delay

    Default

  • host

    127.0.0.1,136.144.41.4

  • hwid

    3

  • install_file

  • install_folder

    %AppData%

  • mutex

    AsyncMutex_6SI8OkPnk

  • pastebin_config

    null

  • port

    4771

  • version

    0.5.7B

aes.plain

Extracted

Family

  • matiex

C2

  • https://api.telegram.org/bot1510981839:AAENaIJ1q1JUO3VLgnB26e9ByEbfYfE5YJM/sendMessage?chat_id=1680674675

Targets

    • Target
      bf7b01b358903416117bc4de8e0861b2
    • Size 196KB
    • SHA256 f2ed40ab9c2eb52484d79b485a78e2779dd300b7513eac17ec4e39fd4a9614a8
    • MD5 SHA1 SHA512
    Score
    10/10
    asyncratmatiexkeyloggerpersistenceratspywarestealer

    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

      ratasyncrat

    • Matiex

      Matiex is a keylogger and infostealer first seen in July 2020.

      stealerkeyloggermatiex

    • Matiex Main Payload

    • Modifies system executable filetype association

      persistence

    • Async RAT payload

      rat

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads user/profile data of local email clients

      Email clients store some user data on disk where infostealers will often target it.

      spywarestealer

    • Reads user/profile data of web browsers

      Infostealers often target stored browser data, which can include saved credentials etc.

      spywarestealer

    • 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

    behavioral1behavioral2

MITRE ATT&CK Enterprise v6

Tasks