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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
    11/11/2024, 21:38

General

  • Target

    69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0.xls

  • Size

    47KB

  • MD5

    569282d3f4b16dbbf8f08fecb4ed1238

  • SHA1

    a68f628dd386eb91153094039747e539559a9354

  • SHA256

    69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0

  • SHA512

    a88773aed711b960c491411995639acbd3b0e49dadfa28e12701915eb723bfd1f277bb8f6e1f47c0a713d16f300abbeef7d41ea866ccceece10495ba8e499455

  • SSDEEP

    768:4DM52tfQXi8vgLZkTOHkQT51Vp6AwPdM8gQ6JT5X6DGwUdh+pqjeSLjcvLtzrxFG:462tfQXi8vgLZkTOHkQT51Vp6AwPe8gT

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\69df28d8d6fe5462f43d6220a7fd1550b05bf678e63edb53e72c2a80b2117eb0.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:3184
    • C:\Windows\SYSTEM32\regsvr32.exe
      regsvr32.exe ..\wnrul.ocx
      2⤵
      • Process spawned unexpected child process
      PID:1004

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

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

    Filesize

    2KB

    MD5

    8881bfd671929f232599ceca354fb42e

    SHA1

    06198c6b2dc384ffbe3306d3b8330b449af598e7

    SHA256

    05eb76ac5263882b53501f842fe8648c5c03acaf9d4f59748e5ee9a49c3282f6

    SHA512

    a7ae906c2bca6d467153eb94ac540470f3a3075f1b1b897fe4acbede2e3e782a3c394de12ad2e9f7c92f0555fc72be1f6351367caf811ba6cf8712d01ab4e628

  • C:\Users\Admin\wnrul.ocx

    Filesize

    86KB

    MD5

    3ffd9a2715e478a2442c309536507f93

    SHA1

    1d3a2db3cf0e80f972084f0d83adbf7f77578f75

    SHA256

    35e3dd8043744d5c6ea3f008188d397312d355ada64cbed3b2c641daf28f5ae3

    SHA512

    311c4b871903a69053910b65e01285d181659d1117d9e5332c12ad801a3d9f5087ae7ae9ecfe507121126205bcb5b40debfc6589715b8ccfed6e8e7cfe6317b9

  • memory/3184-10-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-12-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-4-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

    Filesize

    64KB

  • memory/3184-5-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

    Filesize

    64KB

  • memory/3184-9-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-11-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-13-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-8-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-16-0x00007FF89A110000-0x00007FF89A120000-memory.dmp

    Filesize

    64KB

  • memory/3184-15-0x00007FF89A110000-0x00007FF89A120000-memory.dmp

    Filesize

    64KB

  • memory/3184-3-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

    Filesize

    64KB

  • memory/3184-0-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

    Filesize

    64KB

  • memory/3184-14-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-17-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-18-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-7-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-6-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-39-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-2-0x00007FF89CA70000-0x00007FF89CA80000-memory.dmp

    Filesize

    64KB

  • memory/3184-41-0x00007FF8DCA8D000-0x00007FF8DCA8E000-memory.dmp

    Filesize

    4KB

  • memory/3184-42-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-43-0x00007FF8DC9F0000-0x00007FF8DCBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/3184-1-0x00007FF8DCA8D000-0x00007FF8DCA8E000-memory.dmp

    Filesize

    4KB