Analysis

  • max time kernel
    122s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    03/05/2024, 13:08

General

  • Target

    document.XLSxm.exe

  • Size

    2.2MB

  • MD5

    8c8eb8a5f4a10cb4ec685e3c00e55236

  • SHA1

    515f359f2280ca1274357a79f6eaa5c2617ad06d

  • SHA256

    fa5e0fa6c5ad1d8b07047591ab54b91b8d1f152a43b0f9df0d3acea792f012a3

  • SHA512

    891faaddf8225de5c0d0190b5231dcec368417fb5c43df66feb45a412611f0d75032c93f1061ff94bc2aa295c2645d47fd4c4da4c89f95d4bc829674a5daf633

  • SSDEEP

    49152:uSEOK4/mJ0D7nZiHq5/E7rcivg4GedSUcrAkcF0DsJKvejIPHlE+m+:0qBZiHqxwfgDTaF0AJKGjI9EV

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

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

  • Detect ZGRat V1 34 IoCs
  • ZGRat

    ZGRat is remote access trojan written in C#.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • 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.

  • Adds Run key to start application 2 TTPs 2 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 2 IoCs
  • Suspicious use of AdjustPrivilegeToken 3 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\document.XLSxm.exe
    "C:\Users\Admin\AppData\Local\Temp\document.XLSxm.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious use of SetThreadContext
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:3048
    • C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe
      "C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegAsm.exe"
      2⤵
      • Adds Run key to start application
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of SetWindowsHookEx
      PID:2768

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2768-4907-0x0000000000400000-0x0000000000442000-memory.dmp

          Filesize

          264KB

        • memory/3048-40-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-36-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-6-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-3-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-4-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-14-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-16-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-18-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-20-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-22-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-24-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-26-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-12-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-66-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-32-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-50-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-34-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-28-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-10-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-8-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-38-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-0-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

          Filesize

          4KB

        • memory/3048-2-0x0000000004D70000-0x0000000004FA0000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-46-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-30-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-52-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-64-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-62-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-60-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-58-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-56-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-54-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-48-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-44-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-42-0x0000000004D70000-0x0000000004F9B000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-4884-0x0000000000CE0000-0x0000000000D2C000-memory.dmp

          Filesize

          304KB

        • memory/3048-4883-0x0000000000C10000-0x0000000000C7C000-memory.dmp

          Filesize

          432KB

        • memory/3048-4885-0x0000000074BF0000-0x00000000752DE000-memory.dmp

          Filesize

          6.9MB

        • memory/3048-4886-0x0000000074BF0000-0x00000000752DE000-memory.dmp

          Filesize

          6.9MB

        • memory/3048-4887-0x0000000074BFE000-0x0000000074BFF000-memory.dmp

          Filesize

          4KB

        • memory/3048-4888-0x0000000074BF0000-0x00000000752DE000-memory.dmp

          Filesize

          6.9MB

        • memory/3048-4889-0x0000000074BF0000-0x00000000752DE000-memory.dmp

          Filesize

          6.9MB

        • memory/3048-4890-0x0000000000C90000-0x0000000000CE4000-memory.dmp

          Filesize

          336KB

        • memory/3048-1-0x0000000000D70000-0x0000000000FB0000-memory.dmp

          Filesize

          2.2MB

        • memory/3048-4908-0x0000000074BF0000-0x00000000752DE000-memory.dmp

          Filesize

          6.9MB