Analysis

  • max time kernel
    114s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7
  • submitted
    07/07/2020, 18:47

General

  • Target

    Planilla de Facturacion Mensual 2020.exe

  • Size

    832KB

  • MD5

    fe8cf82b9b38593f689506026aedda9c

  • SHA1

    e679a6837691782468b0ecb593247b6e3b897a0c

  • SHA256

    8759dde700d0ea47fd29cad02f5d067431b7af49edbb7b409e5c25a22485ed3c

  • SHA512

    d7a230c3a7aca9856b36f144e0eecb1a73be2c42b4890c41c76f8fb19ce2131addb98a6cdfff3d484e1c7a75a98ec220e636a431f8b2cf779bf391da74151835

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    mail.mehatinfo.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    X6b{Z0&~hQ@Y

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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 9 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Planilla de Facturacion Mensual 2020.exe
    "C:\Users\Admin\AppData\Local\Temp\Planilla de Facturacion Mensual 2020.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:1072
    • C:\Users\Admin\AppData\Local\Temp\Planilla de Facturacion Mensual 2020.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1320

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1320-0-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1320-2-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB

  • memory/1320-3-0x0000000000400000-0x000000000044C000-memory.dmp

    Filesize

    304KB