Analysis

  • max time kernel
    119s
  • max time network
    93s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    07-12-2022 11:54

General

  • Target

    FedExInvoiceDetailsDec.exe

  • Size

    904KB

  • MD5

    68a8baf4c81bc06fc0d7218f136ceca2

  • SHA1

    b327c03d081a642b1611986cf4d3b5056333d18b

  • SHA256

    eaf9f04e7b89ff0fd3fa3ab826230ffc410762cb6485c252d6682cd4d7630343

  • SHA512

    6e513893daa1531bd0644f558ba51f4a230055d20350e2a1332489eba978fd7af59772c141a57846c86cd7ceb8f2e24c6229d9b598498203638813adb44a7106

  • SSDEEP

    12288:9SoQgKZ/nXt7virmWhlGLaQYIEjmaP8LspX7/dRzI3Nsl3pSQgWnxwt+T3OigMOD:9fKspDRpo7WnSs9D64Iho

Malware Config

Extracted

Family

agenttesla

C2

https://api.telegram.org/bot5702698141:AAH3zArxBJTzE6y3KAwr-22tBuWNisJ3iEg/

Signatures

  • AgentTesla

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

  • 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
  • Looks up external IP address via web service 2 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Suspicious use of SetThreadContext 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs
  • outlook_office_path 1 IoCs
  • outlook_win_path 1 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe
    "C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1016
    • C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe
      "C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe"
      2⤵
        PID:832
      • C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe
        "C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe"
        2⤵
          PID:1104
        • C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe
          "C:\Users\Admin\AppData\Local\Temp\FedExInvoiceDetailsDec.exe"
          2⤵
          • Accesses Microsoft Outlook profiles
          • Adds Run key to start application
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of AdjustPrivilegeToken
          • Suspicious use of SetWindowsHookEx
          • outlook_office_path
          • outlook_win_path
          PID:1452

      Network

      MITRE ATT&CK Enterprise v6

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • memory/1016-54-0x0000000000D30000-0x0000000000E18000-memory.dmp

        Filesize

        928KB

      • memory/1016-55-0x00000000756B1000-0x00000000756B3000-memory.dmp

        Filesize

        8KB

      • memory/1016-56-0x0000000000270000-0x0000000000286000-memory.dmp

        Filesize

        88KB

      • memory/1016-57-0x0000000000280000-0x000000000028E000-memory.dmp

        Filesize

        56KB

      • memory/1016-58-0x0000000005F40000-0x0000000005FDC000-memory.dmp

        Filesize

        624KB

      • memory/1016-59-0x0000000000620000-0x0000000000682000-memory.dmp

        Filesize

        392KB

      • memory/1452-60-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1452-61-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1452-63-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1452-64-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1452-66-0x0000000000437C4E-mapping.dmp

      • memory/1452-65-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1452-68-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB

      • memory/1452-70-0x0000000000400000-0x000000000043C000-memory.dmp

        Filesize

        240KB