General

  • Target
    736aa6026a89fedde2c507de5789c81e.exe
  • Size 495KB
  • Sample211115-h8dz5aedfl
  • SHA256 ac601a34b6e00a6409580aa29283f241b44a33785757354c846b3df4a3bf676f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • asyncrat

Version
  • 0.5.7B

Botnet
  • Nov

C2
  • bbccdd.duckdns.org:1616

Mutex
  • AsyncMutex_6SI9741001021OkPnk

Attributes
  • anti_vm

    false

  • bsod

    false

  • delay

    3

  • install

    false

  • install_folder

    %AppData%

  • pastebin_config

    null

aes.plain

Extracted

Family
  • snakekeylogger

Credentials
  • Protocol

    smtp

  • Host

    budgetn.shop

  • Port

    587

  • Password

    s)Z4bO(8nKHT

Targets

    • Target
      736aa6026a89fedde2c507de5789c81e.exe
    • Size 495KB
    • SHA256 ac601a34b6e00a6409580aa29283f241b44a33785757354c846b3df4a3bf676f
    • MD5 SHA1 SHA512
    • AsyncRat

      AsyncRAT is designed to remotely monitor and control other computers.

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

      suricata: ET MALWARE Observed Malicious SSL Cert (AsyncRAT Server)

    • Async RAT payload

    • Executes dropped EXE

    • Loads dropped DLL

    • Reads data files stored by FTP clients

      Tries to access configuration files associated with programs like FileZilla.

    • Reads user/profile data of local email clients

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

    • Reads user/profile data of web browsers

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

    • Accesses Microsoft Outlook profiles

    • 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