Analysis

  • max time kernel
    97s
  • max time network
    118s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    17-07-2020 17:27

General

  • Target

    PURCHASE ORDER.exe

  • Size

    886KB

  • MD5

    fe2b0b6fc7dd1efa4432dd9fe80526e3

  • SHA1

    9e31d2f57c9fd074ede505f7611531940f38f475

  • SHA256

    e740917e01b79ee21d8d94164db1ab5e8fc4b82b50cb09d4c1e3bf24a0046cf3

  • SHA512

    120371d93576fc92e87294357450c4b628fc53c89d2cfb3b864ca1bb218267bd6ac9e81b7e672a88b04aacd1b53b291b8094aa2490b9c87405b0bee9271ee5c3

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.rezuit.pro
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    chukwuma22

Signatures

  • AgentTesla

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

  • Suspicious use of WriteProcessMemory 14 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

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

  • Creates scheduled task(s) 1 TTPs 1 IoCs

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

  • 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.

Processes

  • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
    "C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetThreadContext
    PID:3100
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\nGhwttSfF" /XML "C:\Users\Admin\AppData\Local\Temp\tmp873C.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:3368
    • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
      "{path}"
      2⤵
        PID:3188
      • C:\Users\Admin\AppData\Local\Temp\PURCHASE ORDER.exe
        "{path}"
        2⤵
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious behavior: EnumeratesProcesses
        PID:3364
    • C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
      C:\Windows\Microsoft.Net\Framework64\v3.0\WPF\PresentationFontCache.exe
      1⤵
        PID:4044

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/3364-5-0x0000000000400000-0x000000000044C000-memory.dmp

        Filesize

        304KB