Analysis

  • max time kernel
    83s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    18/08/2020, 18:11

General

  • Target
    Copia de pago Ref __ No.08172020 __0936_escanear.exe
  • Size 602KB
  • Sample200818-nttzvvbr4a
  • SHA256 88ca3229bbbcdfa0efd9ba8533253fc7cb11206b266d0bcdde54e2c10ac87e35
  • MD5 SHA1 SHA512

Malware Config

Signatures

  • AgentTesla

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

  • AgentTesla Payload 7 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
  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 13 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Copia de pago Ref __ No.08172020 __0936_escanear.exe
    "C:\Users\Admin\AppData\Local\Temp\Copia de pago Ref __ No.08172020 __0936_escanear.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1156
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\jfcmzw" /XML "C:\Users\Admin\AppData\Local\Temp\tmpD171.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1432
    • C:\Users\Admin\AppData\Local\Temp\Copia de pago Ref __ No.08172020 __0936_escanear.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:276

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/276-5-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/276-7-0x0000000000400000-0x000000000045A000-memory.dmp

        memory/276-8-0x0000000000400000-0x000000000045A000-memory.dmp