Analysis

  • max time kernel
    140s
  • max time network
    141s
  • platform
    windows7_x64
  • resource
    win7-en
  • submitted
    07/09/2021, 10:36

General

  • Target
    SCAN3000098653022131.07092021.exe
  • Size 855KB
  • Sample210907-mm9bcsffcm
  • SHA256 eeb62d009f6218f682660a9b3e30a9af0d493102aff9d697b24212d83fdddf46
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.moseg.com.mx

  • Port

    587

  • Password

    Enero2019@

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

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

  • Reads user/profile data of web browsers 2 TTPs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\SCAN3000098653022131.07092021.exe
    "C:\Users\Admin\AppData\Local\Temp\SCAN3000098653022131.07092021.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1664
    • C:\Users\Admin\AppData\Local\Temp\SCAN3000098653022131.07092021.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:268

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/268-59-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/268-61-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/268-63-0x00000000048F0000-0x00000000048F1000-memory.dmp

        memory/268-64-0x00000000048F1000-0x00000000048F2000-memory.dmp

        memory/1664-52-0x0000000000CD0000-0x0000000000CD1000-memory.dmp

        memory/1664-54-0x00000000004E0000-0x0000000000562000-memory.dmp

        memory/1664-55-0x00000000049F0000-0x00000000049F1000-memory.dmp

        memory/1664-56-0x00000000001E0000-0x00000000001EE000-memory.dmp

        memory/1664-57-0x0000000004E30000-0x0000000004EC1000-memory.dmp

        memory/1664-58-0x0000000000C10000-0x0000000000C5D000-memory.dmp