Overview

overview

10

Static

static

CAII000080521.exe

windows7_x64

10

CAII000080521.exe

windows10_x64

1

Analysis

  • max time kernel
    143s
  • max time network
    18s
  • platform
    windows7_x64
  • resource
    win7v200430
  • submitted
    16/07/2020, 15:47

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General

  • Target
    CAII000080521.exe
  • Size 694KB
  • Sample200716-pc4d6987y2
  • SHA256 9058fb2048b5ce85299b45cbbaab0f50ee2eb485f472251640ae5d59868a91ba
  • MD5 SHA1 SHA512
Score
10/10
agentteslakeyloggerpersistencespywarestealertrojan

Malware Config

Extracted

Family

  • agenttesla

Credentials
  • Protocol

    smtp
  • Host

    mail.bandarsteel.com
  • Port

    587
  • Username

    [email protected]
  • Password

    factory123

Signatures

  • AgentTesla

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

    keyloggertrojanstealerspywareagenttesla
  • AgentTesla Payload 4 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 3 IoCs
  • 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 2 IoCs
    persistence
  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

  • Suspicious behavior: EnumeratesProcesses 8 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of WriteProcessMemory 24 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\CAII000080521.exe
    "C:\Users\Admin\AppData\Local\Temp\CAII000080521.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1304
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v application /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\application.exe"
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1792
      • C:\Windows\SysWOW64\reg.exe
        REG ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /f /v application /t REG_SZ /d C:\Windows\system32\pcalua.exe" -a C:\Users\Admin\AppData\Roaming\application.exe"
        3⤵
        • Adds Run key to start application
        PID:1788
    • C:\Users\Admin\AppData\Roaming\application.exe
      "C:\Users\Admin\AppData\Roaming\application.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:800
      • C:\Users\Admin\AppData\Local\Temp\RegAsm.exe
        "C:\Users\Admin\AppData\Local\Temp\RegAsm.exe"
        3⤵
        • Executes dropped EXE
        • Loads dropped DLL
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        PID:1584

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        memory/1584-14-0x0000000000400000-0x000000000044C000-memory.dmp
        Download

        memory/1584-17-0x0000000000400000-0x000000000044C000-memory.dmp
        Download

        memory/1584-18-0x0000000000400000-0x000000000044C000-memory.dmp
        Download