Overview

overview

7

Static

static

3

MEMZ.exe

windows7-x64

6

MEMZ.exe

windows10-2004-x64

7

Analysis

  • max time kernel
    64s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20241010-en
  • resource tags

    arch:x64arch:x86image:win7-20241010-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2024 00:04

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General

  • Target

    MEMZ.exe

  • Size

    14KB

  • MD5

    19dbec50735b5f2a72d4199c4e184960

  • SHA1

    6fed7732f7cb6f59743795b2ab154a3676f4c822

  • SHA256

    a3d5715a81f2fbeb5f76c88c9c21eeee87142909716472f911ff6950c790c24d

  • SHA512

    aa8a6bbb1ec516d5d5acf8be6863a4c6c5d754cee12b3d374c3a6acb393376806edc422f0ffb661c210e5b9485da88521e4a0956a4b7b08a5467cfaacd90591d

  • SSDEEP

    192:sIvxdXSQeWSg9JJS/lcIEiwqZKBkDFR43xWTM3LHn8f26gyr6yfFCj3r:sMVSaSEglcIqq3agmLc+6gyWqFCj

Score
6/10
bootkitdiscoverypersistence

Malware Config

Signatures

  • Writes to the Master Boot Record (MBR) 1 TTPs 1 IoCs

    Bootkits write to the MBR to gain persistence at a level below the operating system.

    bootkitpersistence
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • System Location Discovery: System Language Discovery 1 TTPs 9 IoCs

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

    discovery
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of FindShellTrayWindow 44 IoCs
  • Suspicious use of SendNotifyMessage 43 IoCs
  • Suspicious use of SetWindowsHookEx 64 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
    "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2224
    • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2792
    • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2844
    • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2840
    • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2916
    • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /watchdog
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of SetWindowsHookEx
      PID:2144
    • C:\Users\Admin\AppData\Local\Temp\MEMZ.exe
      "C:\Users\Admin\AppData\Local\Temp\MEMZ.exe" /main
      2⤵
      • Writes to the Master Boot Record (MBR)
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:1432
      • C:\Windows\SysWOW64\notepad.exe
        "C:\Windows\System32\notepad.exe" \note.txt
        3⤵
        • System Location Discovery: System Language Discovery
        • Suspicious use of FindShellTrayWindow
        PID:1604
      • C:\Windows\SysWOW64\mspaint.exe
        "C:\Windows\System32\mspaint.exe"
        3⤵
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        PID:2628
  • C:\Windows\system32\taskmgr.exe
    "C:\Windows\system32\taskmgr.exe" /4
    1⤵
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SendNotifyMessage
    PID:2660

Network

MITRE ATT&CK Enterprise v15

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Downloads

  • C:\note.txt
    Filesize

    218B

    MD5

    afa6955439b8d516721231029fb9ca1b

    SHA1

    087a043cc123c0c0df2ffadcf8e71e3ac86bbae9

    SHA256

    8e9f20f6864c66576536c0b866c6ffdcf11397db67fe120e972e244c3c022270

    SHA512

    5da21a31fbc4e8250dffed30f66b896bdf007ac91948140334fe36a3f010e1bac3e70a07e9f3eb9da8633189091fd5cadcabbaacd3e01da0fe7ae28a11b3dddf

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  • memory/2660-2-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

    Download

  • memory/2660-3-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

    Download

  • memory/2660-4-0x0000000140000000-0x00000001405E8000-memory.dmp

    Filesize

    5.9MB

    Download