Analysis

  • max time kernel
    148s
  • max time network
    153s
  • 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 16:50

General

  • Target

    159aa84aae82f19779e73e0f8e8d82b7503b23740f946f79dc0b29ac7413e114.xls

  • Size

    47KB

  • MD5

    fdc9219b6986a4f508aa6dd2e4f85320

  • SHA1

    9ea577bdeb5bc2917cd372a477631c1250a486c5

  • SHA256

    159aa84aae82f19779e73e0f8e8d82b7503b23740f946f79dc0b29ac7413e114

  • SHA512

    f74a3f0bfb2b33ad14b7c34c6c2f878f76ddd4b6eb2b5eac10da71efce20784672897e0e49f7a3333650651b3bff03ef781003ff81fee7e2abd913b3aeca7471

  • SSDEEP

    768:4DM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JT5X6DGwUdh+pqjeSLjcvLtzrxFm:462tfQXi8vgLZkTOHkQT51Vp6AwPe8gz

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\159aa84aae82f19779e73e0f8e8d82b7503b23740f946f79dc0b29ac7413e114.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:4468
    • C:\Windows\SYSTEM32\regsvr32.exe
      regsvr32.exe ..\wnrul.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1488

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/4468-12-0x00007FFCB5380000-0x00007FFCB5390000-memory.dmp

    Filesize

    64KB

  • memory/4468-2-0x00007FFCB7890000-0x00007FFCB78A0000-memory.dmp

    Filesize

    64KB

  • memory/4468-9-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-6-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-5-0x00007FFCB7890000-0x00007FFCB78A0000-memory.dmp

    Filesize

    64KB

  • memory/4468-4-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-7-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-8-0x00007FFCB7890000-0x00007FFCB78A0000-memory.dmp

    Filesize

    64KB

  • memory/4468-14-0x00007FFCB5380000-0x00007FFCB5390000-memory.dmp

    Filesize

    64KB

  • memory/4468-1-0x00007FFCF78AD000-0x00007FFCF78AE000-memory.dmp

    Filesize

    4KB

  • memory/4468-42-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-3-0x00007FFCB7890000-0x00007FFCB78A0000-memory.dmp

    Filesize

    64KB

  • memory/4468-11-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-13-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-16-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-17-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-15-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-0-0x00007FFCB7890000-0x00007FFCB78A0000-memory.dmp

    Filesize

    64KB

  • memory/4468-39-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-40-0x00007FFCF78AD000-0x00007FFCF78AE000-memory.dmp

    Filesize

    4KB

  • memory/4468-41-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB

  • memory/4468-10-0x00007FFCF7810000-0x00007FFCF7A05000-memory.dmp

    Filesize

    2.0MB