General

  • Target

    IMG_71103.doc

  • Size

    579KB

  • Sample

    210118-jw8tnb7fjj

  • MD5

    336ce8279d6f4852a60c45c01a76c983

  • SHA1

    568bbda16104bee5125b860670fc5c0bc5e93250

  • SHA256

    03cdab92c6e2cf5df9fd307cba44334d112a0dbf3d497effe798ee6881de00f2

  • SHA512

    dffcc9d2d0d3e608012c59f8a7ae5754849d1c0493b0207398654a117ffd3de2b07cce09dc116d348ceb3860695cde0e6071503c66e995c99944b014eb161802

Malware Config

Targets

    • Target

      IMG_71103.doc

    • Size

      579KB

    • MD5

      336ce8279d6f4852a60c45c01a76c983

    • SHA1

      568bbda16104bee5125b860670fc5c0bc5e93250

    • SHA256

      03cdab92c6e2cf5df9fd307cba44334d112a0dbf3d497effe798ee6881de00f2

    • SHA512

      dffcc9d2d0d3e608012c59f8a7ae5754849d1c0493b0207398654a117ffd3de2b07cce09dc116d348ceb3860695cde0e6071503c66e995c99944b014eb161802

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • Snake Keylogger Payload

    • Blocklisted process makes network request

    • 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.

    • Adds Run key to start application

    • 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