Analysis

  • max time kernel
    59s
  • max time network
    33s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240802-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
  • submitted
    04-09-2024 22:15

General

  • Target

    cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.xls

  • Size

    36KB

  • MD5

    2b5149912c390e158c2223ad3bb99250

  • SHA1

    c7624e874c7633f85595360952d41a4d034f1b21

  • SHA256

    cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef

  • SHA512

    18ef3b79ed2e2f54670e72b1989ec15bff4fe4f1b17f4a34cf4c62009fd0394b5bb77f89fbf19a952172c55a1ad44888a8243819f130b91a7b263fbaa675193d

  • SSDEEP

    768:xPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJRkxGv1QEE68DC:5ok3hbdlylKsgqopeJBWhZFGkE+cL2Nw

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 1 IoCs

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

  • Blocklisted process makes network request 2 IoCs
  • 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
  • Modifies registry class 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 4 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\cf21083a9520752fc79b15e5bbc932dbbef4828ef0299180551e147395c2c6ef.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:2096
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\aMv.vbs
      2⤵
      • Process spawned unexpected child process
      PID:4544
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:3064
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\aMv.vbs"
      2⤵
      • Blocklisted process makes network request
      PID:1372

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Public\Documents\aMv.vbs

    Filesize

    609B

    MD5

    e11baa18fd0e452d849b4018707feb84

    SHA1

    38c785ce317c8cd17adaf3d1a60cca5f59ffe596

    SHA256

    adffabbc135bd0726a3e7865b3d2312d063086e70e02c041991722a842e13578

    SHA512

    b1b0ba6a44c5d3eea035ece368d9fa612e35554b788381330302159d77d0b7da277b90d143445bfa7c115b7fa17e0b64942e1588a9665f4377e7be6bcdfaac2c

  • memory/2096-16-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-1-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

    Filesize

    64KB

  • memory/2096-18-0x00007FFB633D0000-0x00007FFB633E0000-memory.dmp

    Filesize

    64KB

  • memory/2096-0-0x00007FFBA5AAD000-0x00007FFBA5AAE000-memory.dmp

    Filesize

    4KB

  • memory/2096-7-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

    Filesize

    64KB

  • memory/2096-12-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-13-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-11-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-17-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-3-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

    Filesize

    64KB

  • memory/2096-34-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-2-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

    Filesize

    64KB

  • memory/2096-14-0x00007FFB633D0000-0x00007FFB633E0000-memory.dmp

    Filesize

    64KB

  • memory/2096-10-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-9-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-8-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-6-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-5-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-4-0x00007FFB65A90000-0x00007FFB65AA0000-memory.dmp

    Filesize

    64KB

  • memory/2096-32-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB

  • memory/2096-33-0x00007FFBA5AAD000-0x00007FFBA5AAE000-memory.dmp

    Filesize

    4KB

  • memory/2096-15-0x00007FFBA5A10000-0x00007FFBA5C05000-memory.dmp

    Filesize

    2.0MB