Analysis

  • max time kernel
    122s
  • max time network
    117s
  • platform
    windows10_x64
  • resource
    win10
  • submitted
    08/07/2020, 09:48

General

  • Target

    PO345678.exe

  • Size

    883KB

  • MD5

    49176bcb0b146d290d9a02e78b57d4df

  • SHA1

    aa04d97bfbe65b9cbce4ffe9488df2f25b3b91e5

  • SHA256

    943cfd0d793dc383dfa4672bf1d2b6b67d4e4dd75b3de9fefcbbdf1f33027f8c

  • SHA512

    9c3ca652ba81e748e7499934494acce2bbd3f36968423098c71f23223c3ff430c658ac8214ebbd2ac987267e29e3f5997b5f97121511e55ae463e2ccd24ce565

Malware Config

Extracted

Credentials

  • Protocol:
    smtp
  • Host:
    smtp.yandex.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    ikem123456789

Signatures

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • 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 6 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.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

Processes

  • C:\Users\Admin\AppData\Local\Temp\PO345678.exe
    "C:\Users\Admin\AppData\Local\Temp\PO345678.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetThreadContext
    PID:976
    • C:\Users\Admin\AppData\Local\Temp\PO345678.exe
      "{path}"
      2⤵
        PID:3900
      • C:\Users\Admin\AppData\Local\Temp\PO345678.exe
        "{path}"
        2⤵
          PID:3928
        • C:\Users\Admin\AppData\Local\Temp\PO345678.exe
          "{path}"
          2⤵
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious behavior: EnumeratesProcesses
          PID:3948

      Network

            MITRE ATT&CK Enterprise v6

            Replay Monitor

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            Downloads

            • memory/3948-0-0x0000000000400000-0x000000000044C000-memory.dmp

              Filesize

              304KB