General

  • Target

    16239fd023bc9cf3b827ff8e52e15b97b504eac112924550b34e38b04e44889d

  • Size

    720KB

  • Sample

    220221-3jjjjabfd8

  • MD5

    ff5f0a439e56b1a27ad7443ac5b671fa

  • SHA1

    c2f55ec434bc16ee084830f643d3e52bf446f696

  • SHA256

    16239fd023bc9cf3b827ff8e52e15b97b504eac112924550b34e38b04e44889d

  • SHA512

    7f3fd444e4920712833f45f5705bb56b7f2d5b98841c6bbfd26dd3876547ebed44b9c11874b2b496303f72d79f5ddc035838c29f9265eda103981033953736c0

Malware Config

Targets

    • Target

      090008000000000000.exe

    • Size

      1.2MB

    • MD5

      4c7fe9c4af3c08960d1490c0ba409694

    • SHA1

      67b090a0aab7e6452d4fba12f2d625e276402096

    • SHA256

      614f64c6f6fb4e6a6bdb91333773972139b112937bff6a22e19c9a5d283b8097

    • SHA512

      a5d70d3958b0979f39d2417cdfb26de1aac81482d48151310fa8cf99ad0d7ddeb83f1812ac611debd7ee052adb7bd109d5828e09a2fd765be2dbf5e35a3889a6

    • AgentTesla

      Agent Tesla is a remote access tool (RAT) written in visual basic.

    • Matiex

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

    • Matiex Main Payload

    • Snake Keylogger

      Keylogger and Infostealer first seen in November 2020.

    • AgentTesla Payload

    • Executes dropped EXE

    • Drops startup file

    • 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