Analysis

  • max time kernel
    135s
  • max time network
    149s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    21-05-2024 12:30

General

  • Target

    Pago.exe

  • Size

    487KB

  • MD5

    a528672b089d077f76a71e5a42b043e5

  • SHA1

    006fe87dddcb4e3afa0b17f2881807c9c3ba13d1

  • SHA256

    780a88c79396f2df8841cf5f66f6807402e45b1db65e20f10d6814e6300cf8f5

  • SHA512

    5019448cd719661f7186babddf07d29200838eaa5e68f8d429ad95d8579ed53782c0bee530f14037ba34887ea316a7a87cada24ecfb0b63db7ab37d7fe510e09

  • SSDEEP

    12288:aILPtvuLRSkpGDgXXt9thbzWuPIxHobepLzF0sht5UXmiUQB:hLPNAo2OgHt9thbzWuP1bexF0sI

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.ru
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    princehero1234

Signatures

  • AgentTesla

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

  • AgentTesla payload 1 IoCs
  • 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • 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 use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Pago.exe
    "C:\Users\Admin\AppData\Local\Temp\Pago.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3156
    • C:\Users\Admin\AppData\Local\Temp\Pago.exe
      "C:\Users\Admin\AppData\Local\Temp\Pago.exe"
      2⤵
        PID:2224
      • C:\Users\Admin\AppData\Local\Temp\Pago.exe
        "C:\Users\Admin\AppData\Local\Temp\Pago.exe"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        • outlook_office_path
        • outlook_win_path
        PID:4116

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v4.0_32\UsageLogs\Pago.exe.log

      Filesize

      1KB

      MD5

      17573558c4e714f606f997e5157afaac

      SHA1

      13e16e9415ceef429aaf124139671ebeca09ed23

      SHA256

      c18db6aecad2436da4a63ff26af4e3a337cca48f01c21b8db494fe5ccc60e553

      SHA512

      f4edf13f05a0d142e4dd42802098c8c44988ee8869621a62c2b565a77c9a95857f636583ff8d6d9baa366603d98b9bfbf1fc75bc6f9f8f83c80cb1215b2941cc

    • memory/3156-12-0x00000000065B0000-0x00000000065F0000-memory.dmp

      Filesize

      256KB

    • memory/3156-8-0x0000000005550000-0x000000000555A000-memory.dmp

      Filesize

      40KB

    • memory/3156-11-0x0000000006550000-0x00000000065AA000-memory.dmp

      Filesize

      360KB

    • memory/3156-4-0x00000000055A0000-0x0000000005632000-memory.dmp

      Filesize

      584KB

    • memory/3156-5-0x0000000005490000-0x000000000549A000-memory.dmp

      Filesize

      40KB

    • memory/3156-6-0x0000000005640000-0x0000000005696000-memory.dmp

      Filesize

      344KB

    • memory/3156-7-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/3156-16-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/3156-9-0x00000000746DE000-0x00000000746DF000-memory.dmp

      Filesize

      4KB

    • memory/3156-0-0x00000000746DE000-0x00000000746DF000-memory.dmp

      Filesize

      4KB

    • memory/3156-3-0x0000000005AB0000-0x0000000006054000-memory.dmp

      Filesize

      5.6MB

    • memory/3156-2-0x00000000053E0000-0x000000000547C000-memory.dmp

      Filesize

      624KB

    • memory/3156-10-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/3156-1-0x0000000000990000-0x0000000000A10000-memory.dmp

      Filesize

      512KB

    • memory/4116-24-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-17-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-18-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-19-0x0000000005330000-0x0000000005348000-memory.dmp

      Filesize

      96KB

    • memory/4116-20-0x0000000005FD0000-0x0000000006036000-memory.dmp

      Filesize

      408KB

    • memory/4116-21-0x0000000006960000-0x00000000069B0000-memory.dmp

      Filesize

      320KB

    • memory/4116-22-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-23-0x00000000746D0000-0x0000000074E80000-memory.dmp

      Filesize

      7.7MB

    • memory/4116-13-0x0000000000400000-0x000000000043C000-memory.dmp

      Filesize

      240KB