Analysis

  • max time kernel
    148s
  • max time network
    151s
  • 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 21:20

General

  • Target

    1f27d56f0a1d1598591124f21a4a13cc7ae88e1b69ae208f06326b390bb5065b.xls

  • Size

    47KB

  • MD5

    07a8e6bd83c12cd49647fcc32353da25

  • SHA1

    06b0b3eede09550e8c89fa0e44693d852c188895

  • SHA256

    1f27d56f0a1d1598591124f21a4a13cc7ae88e1b69ae208f06326b390bb5065b

  • SHA512

    f4e6b8fab8387d2778699f42a45455ba58a50a4b63a0165b72150464b980fb1913bc958e95103b113f046c2fd039a3642be93b14a537bf7ba60ba7d9a159f607

  • SSDEEP

    768:4DM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JT5X6DGwUdh+pqjeSLjcvLtzrxFW:462tfQXi8vgLZkTOHkQT51Vp6AwPe8gD

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\1f27d56f0a1d1598591124f21a4a13cc7ae88e1b69ae208f06326b390bb5065b.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:3132
    • C:\Windows\SYSTEM32\regsvr32.exe
      regsvr32.exe ..\wnrul.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1680

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/3132-15-0x00007FFDBABF0000-0x00007FFDBAC00000-memory.dmp

    Filesize

    64KB

  • memory/3132-2-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

    Filesize

    64KB

  • memory/3132-11-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-10-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-16-0x00007FFDBABF0000-0x00007FFDBAC00000-memory.dmp

    Filesize

    64KB

  • memory/3132-9-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-12-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-13-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-14-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-0-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

    Filesize

    64KB

  • memory/3132-4-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

    Filesize

    64KB

  • memory/3132-3-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

    Filesize

    64KB

  • memory/3132-5-0x00007FFDBCE10000-0x00007FFDBCE20000-memory.dmp

    Filesize

    64KB

  • memory/3132-8-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-7-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-6-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-1-0x00007FFDFCE2D000-0x00007FFDFCE2E000-memory.dmp

    Filesize

    4KB

  • memory/3132-40-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-41-0x00007FFDFCE2D000-0x00007FFDFCE2E000-memory.dmp

    Filesize

    4KB

  • memory/3132-42-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB

  • memory/3132-43-0x00007FFDFCD90000-0x00007FFDFCF85000-memory.dmp

    Filesize

    2.0MB