Analysis

  • max time kernel
    90s
  • max time network
    72s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    24/07/2020, 05:54

General

  • Target
    sheet#4407465.email.exe
  • Size 450KB
  • Sample200724-eqecawfjws
  • SHA256 415ceff1ef1fa3bfc448613f3f6cc2435051f49ed8961b1cab030d75ee8bd65f
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.ibc.by

  • Port

    587

  • Password

    QWErty654321

Signatures

  • AgentTesla

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

  • AgentTesla Payload 4 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 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\sheet#4407465.email.exe
    "C:\Users\Admin\AppData\Local\Temp\sheet#4407465.email.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1032
    • C:\Users\Admin\AppData\Local\Temp\sheet#4407465.email.exe
      "{path}"
      2⤵
        PID:1424
      • C:\Users\Admin\AppData\Local\Temp\sheet#4407465.email.exe
        "{path}"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1436

    Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          memory/1436-2-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/1436-4-0x0000000000400000-0x000000000044C000-memory.dmp

          memory/1436-5-0x0000000000400000-0x000000000044C000-memory.dmp