Analysis

  • max time kernel
    133s
  • max time network
    142s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    20-11-2024 23:31

General

  • Target

    bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b.xlsm

  • Size

    20KB

  • MD5

    eb6e240307081ed655ac931e76510fd1

  • SHA1

    2855d8a522e16facdf958f3c89bec78e4c743ac7

  • SHA256

    bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b

  • SHA512

    72361d8bca6c3e60ad709eb69b921606f987441e951ad86d9c2009d861b0240aff2be86fae0d7903bd6b366efc6a0ef136a563f21e2347572a480dccbbcc35bb

  • SSDEEP

    384:2KAVb1GNjYTo4CGzPd6ZIwL0AOKb5CzgObff9kC+xbX7jvIv:2KYINmo4FLyCBn9kC+xbLA

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.manchesterslt.co.uk/a-to-z-of-slt/9wq2ESVcG/

xlm40.dropper

http://festival.artdialog.ch/contact/RGhcwH4DRBM/

xlm40.dropper

http://bramynapilota.com.pl/wp-admin/NHk/

xlm40.dropper

http://brwconsultoria.com.br/img/Vl0i9o/

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 1 IoCs

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

  • 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 12 IoCs
  • Suspicious use of WriteProcessMemory 3 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\bdbe915e3b57f025f109f99463c4459773e2573a76e9a55e92142a930d6da99b.xlsm"
    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:1828
    • 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:3916

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\b8ab77100df80ab2.customDestinations-ms

    Filesize

    1KB

    MD5

    1d6a4e97312fdf8ec2bd2751f4f3bb6b

    SHA1

    6edcf6915045068cd16c6ef89c3a072ae931ff5d

    SHA256

    1dffdef853d25184b5c61f0fc129f543fdba0170bb202bc5670de9a45dce5e42

    SHA512

    0a5e3588803099fc0797a7633d7f9ba964a75d945fdb4a549146303d18fb93568d70614e1d158b7a7aa001a9247841d940405f5c34f608c4f46c290aab5f6629

  • C:\Users\Admin\kytk.dll

    Filesize

    1KB

    MD5

    1326c16a18441423830933fbb3a6a290

    SHA1

    d62b5f0ec9ae7a82209938c347311519b9fc1084

    SHA256

    3bb40456027c77d05b991e4686f10e51739a6ebdca3e33ec5edcd1e2c28b34cf

    SHA512

    2b9076d43ccc836c89bcd4cc1946008b1d0268edf432d37659960f4ffb9836ca65e638b61305f374ba71b2fa21ac3210482c0e6287288e75bcd44d4fbeb3e528

  • memory/1828-13-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-8-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-16-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-6-0x00007FFD9C970000-0x00007FFD9C980000-memory.dmp

    Filesize

    64KB

  • memory/1828-7-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-12-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-11-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-20-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-14-0x00007FFD9A0E0000-0x00007FFD9A0F0000-memory.dmp

    Filesize

    64KB

  • memory/1828-15-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-0-0x00007FFD9C970000-0x00007FFD9C980000-memory.dmp

    Filesize

    64KB

  • memory/1828-17-0x00007FFD9A0E0000-0x00007FFD9A0F0000-memory.dmp

    Filesize

    64KB

  • memory/1828-9-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-5-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-10-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-21-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-19-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-18-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-2-0x00007FFD9C970000-0x00007FFD9C980000-memory.dmp

    Filesize

    64KB

  • memory/1828-1-0x00007FFDDC98D000-0x00007FFDDC98E000-memory.dmp

    Filesize

    4KB

  • memory/1828-48-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-50-0x00007FFDDC98D000-0x00007FFDDC98E000-memory.dmp

    Filesize

    4KB

  • memory/1828-4-0x00007FFD9C970000-0x00007FFD9C980000-memory.dmp

    Filesize

    64KB

  • memory/1828-55-0x00007FFDDC8F0000-0x00007FFDDCAE5000-memory.dmp

    Filesize

    2.0MB

  • memory/1828-3-0x00007FFD9C970000-0x00007FFD9C980000-memory.dmp

    Filesize

    64KB