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Analysis

  • max time kernel
    133s
  • max time network
    150s
  • 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, 21:27

General

  • Target

    87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.xls

  • Size

    142KB

  • MD5

    50cfa17901314c512629f9cb2373c222

  • SHA1

    47ce5bb1efe924260f8653baaea8c9d0ad3cccb2

  • SHA256

    87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2

  • SHA512

    ec383e5176fc8c521b83ff47d7578bb00115f97c1b83c5d272ce4fe0956510b32611191584bf7c93e9e0b339ce7b7ea50db8d3a2e737c25e93faca6c2fe26b4c

  • SSDEEP

    3072:kfKpbdrHYrMue8q7QPX+5xtekEdi8/dgR/c/mrWmngyYXnMJelsSKThsdskl4WjN:8KpbdrHYrMue8q7QPX+5xtFEdi8/dgRQ

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source
URLs
xlm40.dropper

https://www.certika-bolivia.com/omeltxveatup/9Gb/

xlm40.dropper

https://www.cfoodsnepal.com/index/rvAYVKkJgVWiCwt0wV/

xlm40.dropper

https://www.cgaei.com/fonts/ABuQi/

xlm40.dropper

https://www.chotdonhang.com/noi-dung/w1hMfkjuwAne4W2epiP/

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\87ec8b6572dcbffe635e0727af61a071b6f38a52a009f93c5b9b6016c77f1ec2.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:2572
    • C:\Windows\SysWow64\regsvr32.exe
      C:\Windows\SysWow64\regsvr32.exe -s ..\lnau.dll
      2⤵
      • Process spawned unexpected child process
      • System Location Discovery: System Language Discovery
      PID:4768

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

    1KB

    MD5

    a9999af2f5ce86d7a7caf4d36dc4ace6

    SHA1

    10192e1fe87e1993d766ff6903b1a87b8d72d797

    SHA256

    e64c1ca6b48b1254dd6e8937a8ef7927c97f8359b46dc3dabb31610787335980

    SHA512

    8ec5953bb9d9652b04f61ba347ebfbc0db19a11772f8b50410166118d238a8b36e3a2badefa18acae3312597a9432f32f036443b0ea19ec6dbc1d6861b407b6d

  • C:\Users\Admin\lnau.dll

    Filesize

    85KB

    MD5

    6bc8a28d166f55a88509b0ae07a019fc

    SHA1

    9f565474e4ac1269eeb796874ad4e644d4a6d0fa

    SHA256

    78f353e278bc0e5aa860301e4566645aabf58bc9db5f14020d6e4f87af4a3eb8

    SHA512

    23661130130959bd8b3134b01bc70f2a3de71eb69ab1f7c109045eddec510a60af7278c878f8e51dd5e740da8357a558a66efd57719b3f137f88c2c83a04e6c7

  • memory/2572-14-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-12-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-4-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-5-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-7-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-11-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-13-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-15-0x00007FFB42650000-0x00007FFB42660000-memory.dmp

    Filesize

    64KB

  • memory/2572-0-0x00007FFB44A10000-0x00007FFB44A20000-memory.dmp

    Filesize

    64KB

  • memory/2572-2-0x00007FFB44A10000-0x00007FFB44A20000-memory.dmp

    Filesize

    64KB

  • memory/2572-10-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-9-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-8-0x00007FFB44A10000-0x00007FFB44A20000-memory.dmp

    Filesize

    64KB

  • memory/2572-6-0x00007FFB44A10000-0x00007FFB44A20000-memory.dmp

    Filesize

    64KB

  • memory/2572-16-0x00007FFB42650000-0x00007FFB42660000-memory.dmp

    Filesize

    64KB

  • memory/2572-32-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-33-0x00007FFB84A2D000-0x00007FFB84A2E000-memory.dmp

    Filesize

    4KB

  • memory/2572-34-0x00007FFB84990000-0x00007FFB84B85000-memory.dmp

    Filesize

    2.0MB

  • memory/2572-3-0x00007FFB44A10000-0x00007FFB44A20000-memory.dmp

    Filesize

    64KB

  • memory/2572-1-0x00007FFB84A2D000-0x00007FFB84A2E000-memory.dmp

    Filesize

    4KB