Analysis

  • max time kernel
    149s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    01/06/2024, 01:44

General

  • Target
    0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe
  • Size 365KB
  • Sample240601-b5248aeb92
  • SHA256 0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Extracted

Credentials
  • Protocol

    smtp

  • Host

    nffplp.com

  • Port

    587

  • Password

    $Nke%8XIIDtm

Extracted

Family
  • agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 2 IoCs
  • Program crash 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe
    "C:\Users\Admin\AppData\Local\Temp\0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:2396
    • C:\Users\Admin\AppData\Local\Temp\0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe
      "C:\Users\Admin\AppData\Local\Temp\0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe"
      2⤵
        PID:3096
        • C:\Windows\SysWOW64\WerFault.exe
          C:\Windows\SysWOW64\WerFault.exe -u -p 3096 -s 80
          3⤵
          • Program crash
          PID:3176
      • C:\Users\Admin\AppData\Local\Temp\0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe
        "C:\Users\Admin\AppData\Local\Temp\0b65fb604be623f2ec533d1ffce65badb705ece87d1ccebf23b6392df1edfdc8.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:4832
    • C:\Windows\SysWOW64\WerFault.exe
      C:\Windows\SysWOW64\WerFault.exe -pss -s 408 -p 3096 -ip 3096
      1⤵
        PID:2848

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            memory/2396-0-0x0000000074E6E000-0x0000000074E6F000-memory.dmp

            memory/2396-1-0x00000000008B0000-0x0000000000912000-memory.dmp

            memory/2396-2-0x0000000074E60000-0x0000000075610000-memory.dmp

            memory/4832-3-0x0000000000400000-0x0000000000442000-memory.dmp

            memory/4832-4-0x0000000074E60000-0x0000000075610000-memory.dmp

            memory/4832-5-0x00000000056B0000-0x0000000005C54000-memory.dmp

            memory/4832-6-0x0000000074E60000-0x0000000075610000-memory.dmp

            memory/4832-7-0x0000000005100000-0x0000000005166000-memory.dmp

            memory/4832-8-0x0000000006780000-0x00000000067D0000-memory.dmp

            memory/4832-9-0x0000000006870000-0x000000000690C000-memory.dmp

            memory/4832-10-0x0000000006AB0000-0x0000000006B42000-memory.dmp

            memory/4832-11-0x0000000006A70000-0x0000000006A7A000-memory.dmp

            memory/4832-12-0x0000000074E60000-0x0000000075610000-memory.dmp