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Analysis

  • max time kernel
    161s
  • max time network
    172s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    31/12/2023, 02:38

General

  • Target

    24c3546af255b3061c9984a94cf814c0.xls

  • Size

    36KB

  • MD5

    24c3546af255b3061c9984a94cf814c0

  • SHA1

    b832bd9188c388da763003f5ee2b0e6e2c529f53

  • SHA256

    48f6fd13e574d918e1151b8eceb63b697af0ab003e681d5bf765b1e0472f1c0a

  • SHA512

    a74216308f08283109dc1c6de74347ab5952042d03f07ebb5293085daa80451c001c1b07521d3c9134f74b5676a17583497c15b7e120ee67690e85c40daf30c1

  • SSDEEP

    768:CPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ/EYNuU64gKd2k:mok3hbdlylKsgqopeJBWhZFGkE+cL2Ng

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\24c3546af255b3061c9984a94cf814c0.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:4792
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\rg4gX.vbs
      2⤵
      • Process spawned unexpected child process
      PID:4224
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1720
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\rg4gX.vbs"
      2⤵
      • Blocklisted process makes network request
      PID:4580

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/4792-3-0x00007FFCA6610000-0x00007FFCA6620000-memory.dmp

    Filesize

    64KB

  • memory/4792-6-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-7-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-9-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-11-0x00007FFCA45B0000-0x00007FFCA45C0000-memory.dmp

    Filesize

    64KB

  • memory/4792-12-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-13-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-15-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-16-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-18-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-20-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-22-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-21-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-19-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-17-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-14-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-10-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-8-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-5-0x00007FFCA6610000-0x00007FFCA6620000-memory.dmp

    Filesize

    64KB

  • memory/4792-4-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB

  • memory/4792-2-0x00007FFCA6610000-0x00007FFCA6620000-memory.dmp

    Filesize

    64KB

  • memory/4792-1-0x00007FFCA6610000-0x00007FFCA6620000-memory.dmp

    Filesize

    64KB

  • memory/4792-0-0x00007FFCA6610000-0x00007FFCA6620000-memory.dmp

    Filesize

    64KB

  • memory/4792-26-0x00007FFCA45B0000-0x00007FFCA45C0000-memory.dmp

    Filesize

    64KB

  • memory/4792-35-0x00007FFCE6590000-0x00007FFCE6785000-memory.dmp

    Filesize

    2.0MB