Analysis

  • max time kernel
    137s
  • max time network
    140s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    20-11-2024 21:44

General

  • Target

    6e3028072a59205d2ee5f5ead732bb05d831ee42ecf365f888f50b803973cb1b.xlsm

  • Size

    20KB

  • MD5

    ad5fe5db4ffa5f34af82ca2b5f3c3ce8

  • SHA1

    f2bab3b9e4e409b8d235de737cfb929002ab20d6

  • SHA256

    6e3028072a59205d2ee5f5ead732bb05d831ee42ecf365f888f50b803973cb1b

  • SHA512

    fd3462f6d3024cd2641fef2bfc0abc16c382184295cceb74f709a10318ad9ef4649bf936533aa65a60ee034e5a509a4e0b21a9c056ce917d009efa67fe7cdddb

  • SSDEEP

    384:uVb1GNjxKo4CGzPd6ZIwISKb5CzgObff9kC+xbX7ZnR:eINco4FLhnCBn9kC+xbLv

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://avirtual.com.ar/portfolio_low/LJtA7G2nnfwBAYE/

xlm40.dropper

http://ard-paya.ir/cgi-bin/ddiue5yX5k28KC33EKw/

xlm40.dropper

http://ascendmedicalsupplies.co.ke/FUTH99YV/faflDNXWq0bPv/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • 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.

  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of SetWindowsHookEx 3 IoCs
  • Suspicious use of WriteProcessMemory 7 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\6e3028072a59205d2ee5f5ead732bb05d831ee42ecf365f888f50b803973cb1b.xlsm
    1⤵
    • System Location Discovery: System Language Discovery
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:1820
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\kytk.dll
      2⤵
      • Process spawned unexpected child process
      • System Location Discovery: System Language Discovery
      PID:2084

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\kytk.dll

    Filesize

    7KB

    MD5

    adcd72d536a231b6e2d2b54fd8d1ec53

    SHA1

    53a649c3044c8477d1d2e16e8a1172efd31effbf

    SHA256

    c7521c3fe257008afb7001f7643f4eff175b0c56dd1c8eeeee8be3f881d5dca8

    SHA512

    2492f491280326ab028d88ba1104909f172eb21e84f4d1c9277b1e1f07f8d6f9fa34c58d8be33e13bf9dc242fbd3e3a401ab9fd407d9fa83c0774cec99e868b7

  • memory/1820-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1820-1-0x0000000073D7D000-0x0000000073D88000-memory.dmp

    Filesize

    44KB

  • memory/1820-22-0x0000000073D7D000-0x0000000073D88000-memory.dmp

    Filesize

    44KB