Analysis

  • max time kernel
    133s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    19/11/2024, 19:08

General

  • Target

    e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602.xls

  • Size

    47KB

  • MD5

    6b9445e8cb9b46e27b9d06714e3f8d75

  • SHA1

    8f602e6fc2e12d67273b7fb8a2bca07835a75554

  • SHA256

    e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602

  • SHA512

    3baf1778aecff4935af04c2198bff97e9e557595f5de093b605161b68655c1029dce8e2cbc08d88b2e56face6b81367487424cbb31c297fa072f1ba45389a444

  • SSDEEP

    768:4DM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JT5X6DGwUdh+pqjeSLjcvLtzrxF6:462tfQXi8vgLZkTOHkQT51Vp6AwPe8go

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.escueladecinemza.com.ar/_installation/IBlj/

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • 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 14 IoCs
  • Suspicious use of WriteProcessMemory 2 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\e8acd27775be36af0b822c4d151afd1fe699530807744be4b6c0356a7f221602.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:3540
    • C:\Windows\SYSTEM32\regsvr32.exe
      regsvr32.exe ..\wnrul.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1244

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\wnrul.ocx

    Filesize

    86KB

    MD5

    dfdb83bd3445e3f2ea46b104976c8d43

    SHA1

    78e1237f69e9ba18a68a2c72b6a78179fc01c29b

    SHA256

    76e4a6a2d7ade92678bdc5dd447199ce8f16496d32b36b000726053a89e89443

    SHA512

    6950cad2b1e7f9a20015ee358a44a7def9db96cb395c21a21fece6348e24cf4d307e10091b5f84edeb84368d9f435a82366ed992bcb372e078571a7b97cc328a

  • memory/3540-12-0x00007FFA28EC0000-0x00007FFA28ED0000-memory.dmp

    Filesize

    64KB

  • memory/3540-41-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-0-0x00007FFA2AF50000-0x00007FFA2AF60000-memory.dmp

    Filesize

    64KB

  • memory/3540-5-0x00007FFA2AF50000-0x00007FFA2AF60000-memory.dmp

    Filesize

    64KB

  • memory/3540-4-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-8-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-7-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-10-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-9-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-6-0x00007FFA2AF50000-0x00007FFA2AF60000-memory.dmp

    Filesize

    64KB

  • memory/3540-11-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-13-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-14-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-2-0x00007FFA2AF50000-0x00007FFA2AF60000-memory.dmp

    Filesize

    64KB

  • memory/3540-1-0x00007FFA2AF50000-0x00007FFA2AF60000-memory.dmp

    Filesize

    64KB

  • memory/3540-15-0x00007FFA28EC0000-0x00007FFA28ED0000-memory.dmp

    Filesize

    64KB

  • memory/3540-43-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-38-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-39-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-40-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-3-0x00007FFA6AF6D000-0x00007FFA6AF6E000-memory.dmp

    Filesize

    4KB

  • memory/3540-42-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-37-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-44-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-45-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-46-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-47-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-48-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-50-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB

  • memory/3540-49-0x00007FFA6AED0000-0x00007FFA6B0C5000-memory.dmp

    Filesize

    2.0MB