Analysis

  • max time kernel
    100s
  • max time network
    109s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231130-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231130-enlocale:en-usos:windows10-2004-x64system
  • submitted
    03-12-2023 02:32

General

  • Target

    ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe

  • Size

    258KB

  • MD5

    65293cadc0467021b330d4248c666670

  • SHA1

    af8f8b65d172a3b6ac355bd4e042b416062b1993

  • SHA256

    ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a

  • SHA512

    1dfb47818d1a0336866f09aaa400a9b48bad542af47936e3a78910ea3885bc6704b4d54a04757d21f4caa5900c7d46e369700fcaea414c03639835f55d9bfd02

  • SSDEEP

    6144:HQNCwXX3Z2hUX8A4+s/i0ZkA0CkSCObc5a/zyRv+:oBpCUMA4L/i0ZkA0TSCso

Malware Config

Extracted

Family

agenttesla

Credentials

  • Protocol:
    ftp
  • Host:
    ftp://mydevelopmentstory.com
  • Port:
    21
  • Username:
    [email protected]
  • Password:
    ENugu@042EN

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.

  • 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 4 IoCs
  • Suspicious behavior: EnumeratesProcesses 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe
    "C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious use of WriteProcessMemory
    PID:3616
    • C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe
      "C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe"
      2⤵
        PID:3628
      • C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe
        "C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe"
        2⤵
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of SetWindowsHookEx
        PID:2536
      • C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe
        "C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe"
        2⤵
          PID:1644
        • C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe
          "C:\Users\Admin\AppData\Local\Temp\ac8b06ad0407f8c2f9d39bfa0f0683d0719272c8332e8d92b003ac386729e90a.exe"
          2⤵
            PID:1604

        Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/1644-13-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB

        • memory/2536-15-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB

        • memory/2536-21-0x0000000006800000-0x000000000680A000-memory.dmp

          Filesize

          40KB

        • memory/2536-20-0x00000000068E0000-0x0000000006972000-memory.dmp

          Filesize

          584KB

        • memory/2536-3-0x0000000000400000-0x0000000000444000-memory.dmp

          Filesize

          272KB

        • memory/2536-19-0x0000000006840000-0x00000000068DC000-memory.dmp

          Filesize

          624KB

        • memory/2536-8-0x0000000005470000-0x0000000005A14000-memory.dmp

          Filesize

          5.6MB

        • memory/2536-7-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB

        • memory/2536-18-0x0000000006750000-0x00000000067A0000-memory.dmp

          Filesize

          320KB

        • memory/2536-17-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

          Filesize

          64KB

        • memory/2536-10-0x0000000004EC0000-0x0000000004F26000-memory.dmp

          Filesize

          408KB

        • memory/2536-14-0x0000000004EB0000-0x0000000004EC0000-memory.dmp

          Filesize

          64KB

        • memory/3616-4-0x00000000056E0000-0x00000000056E1000-memory.dmp

          Filesize

          4KB

        • memory/3616-12-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB

        • memory/3616-0-0x0000000000D40000-0x0000000000D86000-memory.dmp

          Filesize

          280KB

        • memory/3616-2-0x0000000005760000-0x0000000005770000-memory.dmp

          Filesize

          64KB

        • memory/3616-1-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB

        • memory/3628-16-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB

        • memory/3628-11-0x0000000075330000-0x0000000075AE0000-memory.dmp

          Filesize

          7.7MB