Analysis

  • max time kernel
    123s
  • max time network
    133s
  • platform
    windows10_x64
  • resource
    win10v20210408
  • submitted
    06/09/2021, 05:16

General

  • Target
    INVOICE PACKINGLIST600286 600357.exe
  • Size 959KB
  • Sample210906-fx5ycsabd7
  • SHA256 2b7b76eada5efd718343761b04df3d0910bf58a382535060d0e078736d1cedca
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • agenttesla

Credentials
  • Protocol

    smtp

  • Host

    mail.prinutrition.com

  • Port

    587

  • Password

    forrest

Signatures

  • AgentTesla

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

  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 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 SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\INVOICE PACKINGLIST600286 600357.exe
    "C:\Users\Admin\AppData\Local\Temp\INVOICE PACKINGLIST600286 600357.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Users\Admin\AppData\Local\Temp\INVOICE PACKINGLIST600286 600357.exe
      "{path}"
      2⤵
      • Drops file in Drivers directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2300

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/1404-119-0x0000000005B30000-0x000000000602E000-memory.dmp

        memory/1404-123-0x0000000007730000-0x00000000077C2000-memory.dmp

        memory/1404-118-0x00000000059E0000-0x00000000059E1000-memory.dmp

        memory/1404-114-0x0000000000FA0000-0x0000000000FA1000-memory.dmp

        memory/1404-120-0x0000000003350000-0x0000000003351000-memory.dmp

        memory/1404-121-0x0000000005BF0000-0x0000000005BF1000-memory.dmp

        memory/1404-117-0x0000000006030000-0x0000000006031000-memory.dmp

        memory/1404-116-0x0000000005940000-0x0000000005941000-memory.dmp

        memory/1404-122-0x0000000003250000-0x000000000325E000-memory.dmp

        memory/1404-124-0x00000000077D0000-0x000000000781B000-memory.dmp

        memory/2300-125-0x0000000000400000-0x000000000043C000-memory.dmp

        memory/2300-132-0x00000000057E0000-0x0000000005CDE000-memory.dmp

        memory/2300-133-0x0000000005860000-0x0000000005861000-memory.dmp

        memory/2300-134-0x00000000063D0000-0x00000000063D1000-memory.dmp