Analysis

  • max time kernel
    131s
  • max time network
    122s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    13-07-2020 11:27

General

  • Target

    Order10049274pdf.exe

  • Size

    328KB

  • MD5

    c71732b7a6d89bac55bf2f525c6a3a2f

  • SHA1

    8d5b4f6a236b84075f987a01e470350837c35d1c

  • SHA256

    85d34a30b3163b6db32ec267c22e5fd5cbfab30533aa4a829f9d79ca55e779d2

  • SHA512

    eb89ebbc51bcceac01edfe399916385abfa7db20bfcd23f6bad0b915a1e3822df3f70b97661b6f92bd1b6eb7f4d4112422ad71a5026c14e2eba80a81a94e6686

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.saritatravels.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sameerb%$321

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    webmail.saritatravels.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    sameerb%$321

Signatures

  • AgentTesla

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

  • AgentTesla Payload 2 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
  • Enumerates physical storage devices 1 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 11 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Order10049274pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Order10049274pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:364
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\LIVtvxl" /XML "C:\Users\Admin\AppData\Local\Temp\tmp2D01.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:1232
    • C:\Users\Admin\AppData\Local\Temp\Order10049274pdf.exe
      "{path}"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:1548
  • C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
    1⤵
      PID:1008

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Order10049274pdf.exe.log
      MD5

      c33b4293a0023b388d1a816aba4901f1

      SHA1

      a793fe7d4694457873aa26a454a5d4b0207d7d54

      SHA256

      5b4a63ea1ce7cc18eb1be775ffb52b342bb678f265c88d4518d8e1fe44a55234

      SHA512

      d04308b55218a71bd09562de76a8030e6327fb0143695e01cb25fb5ad6a9b3715425e4782dc5d27b0aaaf0d71048f0886099df6ce87e29e796abe3727fd1ba53

    • C:\Users\Admin\AppData\Local\Temp\tmp2D01.tmp
      MD5

      a55700887954ace9704a3e5aaec7d853

      SHA1

      812f06670e0b8b2d77ecffa188cd1ce3300736df

      SHA256

      aba7f2e41c77422a5d30c9f2d73573d64fef82fb4e0c0a634aa4db24136dc296

      SHA512

      9c4ca4ee6c2bcbd9a6c968d214efda2c9c8c27dd2c278fc4168f4ef2e06efb28d71f09eb74d1b4d5bd92ac7c17f5a2fa0c50c4425878c40f4abf0cca293f4d2d

    • memory/1232-0-0x0000000000000000-mapping.dmp
    • memory/1548-2-0x0000000000400000-0x000000000044C000-memory.dmp
      Filesize

      304KB

    • memory/1548-3-0x0000000000446EFE-mapping.dmp