Analysis

  • max time kernel
    90s
  • max time network
    140s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220414-en
  • submitted
    21-05-2022 01:24

General

  • Target

    Quotation Forms_GJN20SP-E0479.xls.exe

  • Size

    700KB

  • MD5

    51b226b1ae909650dfdfa844a3c73e37

  • SHA1

    deb329af0ccefaba8e3fd5f17c1e4eb26eed7006

  • SHA256

    9ebeccf2c2b987cf1506b20018874f44c8aa28c477cf33dc4f6ca45bb7f25a9d

  • SHA512

    9be2478a834c88426c204f2cb4dbe99267ea33f04dd4084bfe5a136f54c9e2e0abd88718c29014d7a2eae958c3d4aaf73cbca3b15dbaae5e1e06db82ae917b9b

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    secure197.inmotionhosting.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    GL@123456

Signatures

  • AgentTesla

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

  • AgentTesla Payload 1 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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 4 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 2 IoCs
  • Suspicious use of WriteProcessMemory 14 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Quotation Forms_GJN20SP-E0479.xls.exe
    "C:\Users\Admin\AppData\Local\Temp\Quotation Forms_GJN20SP-E0479.xls.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1452
    • C:\Users\Admin\AppData\Local\Temp\Quotation Forms_GJN20SP-E0479.xls.exe
      "{path}"
      2⤵
        PID:2920
      • C:\Users\Admin\AppData\Local\Temp\Quotation Forms_GJN20SP-E0479.xls.exe
        "{path}"
        2⤵
        • Accesses Microsoft Outlook profiles
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        • outlook_office_path
        • outlook_win_path
        PID:4400
        • C:\Windows\SysWOW64\netsh.exe
          "netsh" wlan show profile
          3⤵
            PID:916

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Microsoft\CLR_v2.0_32\UsageLogs\Quotation Forms_GJN20SP-E0479.xls.exe.log

        Filesize

        496B

        MD5

        7baa6583f69f63f7230df9bf98448356

        SHA1

        fe9eb85b57192362da704a3c130377fe83862320

        SHA256

        a632504621b4cac1d5ba5465c7ad9b30f3d036e9838682506782124a211bed4f

        SHA512

        0e72541791281c0fdac1f5fc6beea0b9eb8766b2a386aecb92cb8a44e5b59b7114c79194393ddeff957ffe86021a311caed7ce2731b863d97ad441870efbc051

      • memory/916-136-0x0000000000000000-mapping.dmp

      • memory/1452-130-0x0000000074690000-0x0000000074C41000-memory.dmp

        Filesize

        5.7MB

      • memory/2920-131-0x0000000000000000-mapping.dmp

      • memory/4400-132-0x0000000000000000-mapping.dmp

      • memory/4400-133-0x0000000000400000-0x0000000000452000-memory.dmp

        Filesize

        328KB

      • memory/4400-135-0x0000000074690000-0x0000000074C41000-memory.dmp

        Filesize

        5.7MB