Analysis

  • max time kernel
    51s
  • max time network
    52s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240508-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240508-enlocale:en-usos:windows10-2004-x64system
  • submitted
    12-06-2024 02:20

General

  • Target

    d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe

  • Size

    1.2MB

  • MD5

    d69c9b286370b62f92c918391b634a58

  • SHA1

    cc1655427efdee76bcd035e4e49facdfc507428d

  • SHA256

    d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837

  • SHA512

    880a3d297dea7c682e860c430fb07dab87a13620fb8d5572bef06b091f41524ab0d2dab334ca4b747913cca11f8f093626fd1097d302e3276d98517b1c81543e

  • SSDEEP

    24576:ug8OekVBbj2Y9UHmZiJHtf2BqH6H/DyHqYbqG5LerJ2cVPX2JlxrM8CW:TFVBHRzExtD6/6Zk0J3rMw

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect packed .NET executables. Mostly AgentTeslaV4. 1 IoCs
  • Detects binaries (Windows and macOS) referencing many web browsers. Observed in information stealers. 1 IoCs
  • Detects executables referencing Windows vault credential objects. Observed in infostealers 1 IoCs
  • Detects executables referencing many confidential data stores found in browsers, mail clients, cryptocurreny wallets, etc. Observed in information stealers 1 IoCs
  • Detects executables referencing many email and collaboration clients. Observed in information stealers 1 IoCs
  • Detects executables referencing many file transfer clients. Observed in information stealers 1 IoCs
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Looks up external IP address via web service 1 IoCs

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

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 17 IoCs

Processes

  • C:\Windows\System32\WScript.exe
    "C:\Windows\System32\WScript.exe" "C:\Users\Admin\AppData\Local\Temp\d34512e149774ba06eb46d4678af8b8a6995fa019bc9bc352687d11915646837.vbe"
    1⤵
    • Checks computer location settings
    • Suspicious use of WriteProcessMemory
    PID:1124
    • C:\Users\Admin\AppData\Local\Temp\x.exe
      "C:\Users\Admin\AppData\Local\Temp\x.exe"
      2⤵
      • Executes dropped EXE
      • Suspicious use of SetThreadContext
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:4264
      • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
        "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
        3⤵
          PID:3972
        • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
          "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
          3⤵
            PID:2036
          • C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe
            "C:\Windows\Microsoft.NET\Framework\v4.0.30319\Caspol.exe"
            3⤵
            • Suspicious behavior: EnumeratesProcesses
            • Suspicious use of AdjustPrivilegeToken
            PID:2304

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

      Loading Replay Monitor...

      Downloads

      • C:\Users\Admin\AppData\Local\Temp\x.exe

        Filesize

        922KB

        MD5

        b00a0fe1481355a44e42eb0c8df8535a

        SHA1

        a564004203522c9f78334d5442fcfd11e1e292ce

        SHA256

        9b2071e0c54d09643e5d6bcaff25e747f2461ea0b1b062753a137489b7596d84

        SHA512

        4697ca800e7eac2c07ea16800eb73170aebfc2898eb1002e9867dea746abd5fba7bbfdc1ab1c9575fd59c46f29d5f594c74599a7397c32b89c58bd6bf07a13dc

      • memory/2304-17-0x0000000074670000-0x0000000074E20000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-13-0x0000000000400000-0x0000000000442000-memory.dmp

        Filesize

        264KB

      • memory/2304-15-0x0000000074670000-0x0000000074E20000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-16-0x0000000005950000-0x0000000005EF4000-memory.dmp

        Filesize

        5.6MB

      • memory/2304-18-0x00000000052A0000-0x0000000005306000-memory.dmp

        Filesize

        408KB

      • memory/2304-19-0x0000000006800000-0x0000000006850000-memory.dmp

        Filesize

        320KB

      • memory/2304-20-0x00000000068F0000-0x000000000698C000-memory.dmp

        Filesize

        624KB

      • memory/2304-21-0x0000000074670000-0x0000000074E20000-memory.dmp

        Filesize

        7.7MB

      • memory/2304-22-0x0000000006A30000-0x0000000006AC2000-memory.dmp

        Filesize

        584KB

      • memory/2304-23-0x0000000006990000-0x000000000699A000-memory.dmp

        Filesize

        40KB

      • memory/4264-12-0x0000000000CD0000-0x0000000000DBE000-memory.dmp

        Filesize

        952KB

      • memory/4264-11-0x000000007467E000-0x000000007467F000-memory.dmp

        Filesize

        4KB