Overview

overview

10

Static

static

pago.jar.exe

windows7_x64

10

pago.jar.exe

windows10_x64

10

Analysis

  • max time kernel
    92s
  • max time network
    149s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    05/10/2020, 11:36

Sharing

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General

  • Target
    pago.jar.exe
  • Size 705KB
  • Sample201005-t289ejt5sx
  • SHA256 8ee2c58f8a8fc555dc2be25df0f819e83f2c6c36a7513c18ddafe160ac94bf11
  • MD5 SHA1 SHA512
Score
10/10
agentteslakeyloggerpersistencespywarestealertrojanupx

Malware Config

Extracted

Family

  • agenttesla

Credentials
  • Protocol

    smtp
  • Host

    smtp.nutex-cn.com
  • Port

    587
  • Username

    [email protected]
  • Password

    UApNoPJ4

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 3 IoCs
  • Drops file in Drivers directory 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

    upx
  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

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

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

    spyware
  • Reads user/profile data of web browsers 2 TTPs

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

    spyware
  • Adds Run key to start application 2 TTPs 1 IoCs
    persistence
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\pago.jar.exe
    "C:\Users\Admin\AppData\Local\Temp\pago.jar.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:3868
    • C:\Users\Admin\AppData\Local\Temp\pago.jar.exe
      "C:\Users\Admin\AppData\Local\Temp\pago.jar.exe"
      2⤵
      • Drops file in Drivers directory
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: RenamesItself
      • Suspicious use of AdjustPrivilegeToken
      PID:1012

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1012-1-0x0000000000400000-0x0000000000485000-memory.dmp
        Download

        memory/1012-3-0x0000000000400000-0x0000000000485000-memory.dmp
        Download

        memory/1012-4-0x0000000000400000-0x0000000000485000-memory.dmp
        Download

        memory/1012-5-0x0000000000960000-0x000000000099C000-memory.dmp
        Download

        memory/1012-6-0x00000000022D2000-0x00000000022D3000-memory.dmp
        Download

        memory/3868-0-0x0000000000400000-0x00000000004B7000-memory.dmp
        Download