Analysis

  • max time kernel
    73s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220414-en
  • submitted
    21-05-2022 11:54

General

  • Target

    Bank Deposit_pdf.exe

  • Size

    846KB

  • MD5

    12bb6076dd7e2d3c4150ae025e7292d0

  • SHA1

    eeb7ed4ad7a419e5160ae862748a6fe34a1dc0f2

  • SHA256

    618fbb94c6c3b6726a543156d6d23efffb5515395c327d7e58cf8c9eb45b5825

  • SHA512

    84bbbc6552a45f3d224ab520d4e654d8f123beea001e7f3ac6ab4367c6bbc5245b7cfa1e8c1dc43de24060e3874a31924c2630b064ba424611a72d63e38c7ee7

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    smtp
  • Host:
    us2.smtp.mailhostbox.com
  • Port:
    587
  • Username:
    [email protected]
  • Password:
    jiucUVn4

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.

  • Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs
  • Adds Run key to start application 2 TTPs 1 IoCs
  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 3 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\Bank Deposit_pdf.exe
    "C:\Users\Admin\AppData\Local\Temp\Bank Deposit_pdf.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    • Suspicious use of WriteProcessMemory
    PID:1216
    • C:\Users\Admin\AppData\Local\Temp\Bank Deposit_pdf.exe
      "C:\Users\Admin\AppData\Local\Temp\Bank Deposit_pdf.exe"
      2⤵
      • Accesses Microsoft Outlook profiles
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      • outlook_office_path
      • outlook_win_path
      PID:1648
      • C:\Windows\SysWOW64\netsh.exe
        "netsh" wlan show profile
        3⤵
          PID:1168

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/1168-61-0x0000000000000000-mapping.dmp
    • memory/1216-54-0x00000000759F1000-0x00000000759F3000-memory.dmp
      Filesize

      8KB

    • memory/1216-56-0x0000000000400000-0x00000000004DA000-memory.dmp
      Filesize

      872KB

    • memory/1648-55-0x00000000004532BF-mapping.dmp
    • memory/1648-57-0x00000000004B0000-0x0000000000502000-memory.dmp
      Filesize

      328KB

    • memory/1648-58-0x00000000004B0000-0x0000000000502000-memory.dmp
      Filesize

      328KB

    • memory/1648-60-0x0000000074640000-0x0000000074BEB000-memory.dmp
      Filesize

      5.7MB