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Analysis

  • max time kernel
    158s
  • max time network
    174s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    28/12/2023, 09:56

General

  • Target

    d75651ae3fbdbe217dfa2987fd54428a.xls

  • Size

    36KB

  • MD5

    d75651ae3fbdbe217dfa2987fd54428a

  • SHA1

    6c469a60c759854d2e67287c9dd4490a086e5982

  • SHA256

    dee859920efe084ddf9a27836d7deecbf31e8148bc439263da378e1a193e63a6

  • SHA512

    1a2a002b9207af58a45645e9a4fbb10a71ede6495e73688a2b670a48070c6867a1dc7fa092998496c6769518bef4e87a184c3cad66f63f365b616d79abc8ff40

  • SSDEEP

    768:0PqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJaJPq7t5ahuAieNJ:wok3hbdlylKsgqopeJBWhZFGkE+cL2Nh

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\d75651ae3fbdbe217dfa2987fd54428a.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:2372
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\wIM4E7R.vbs
      2⤵
      • Process spawned unexpected child process
      PID:1544
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1404
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\wIM4E7R.vbs"
      2⤵
      • Blocklisted process makes network request
      PID:1788

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Public\Documents\wIM4E7R.vbs

    Filesize

    610B

    MD5

    7bd3b776cf1495d0aa9c0187fef24c9c

    SHA1

    ecff7f65ad9c361def5a732f3995365cafe0c97e

    SHA256

    6fa155791a870a7a74fac29f1798985e380f4f97e1fccd11d9e397a151217d13

    SHA512

    1e7261c7bd4e4f0a81a3487d67ae793d4446c784703111c1810980090cc1869050e9323f33f2288f94fb52a409bf8b5a3957e4fea77e235339c483fe6903ef13

  • memory/2372-10-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-12-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-3-0x00007FF97DA70000-0x00007FF97DA80000-memory.dmp

    Filesize

    64KB

  • memory/2372-5-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-4-0x00007FF97DA70000-0x00007FF97DA80000-memory.dmp

    Filesize

    64KB

  • memory/2372-6-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-7-0x00007FF97DA70000-0x00007FF97DA80000-memory.dmp

    Filesize

    64KB

  • memory/2372-8-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-9-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-13-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-2-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-11-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-1-0x00007FF97DA70000-0x00007FF97DA80000-memory.dmp

    Filesize

    64KB

  • memory/2372-14-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-15-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-16-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-17-0x00007FF97BA10000-0x00007FF97BA20000-memory.dmp

    Filesize

    64KB

  • memory/2372-19-0x00007FF97BA10000-0x00007FF97BA20000-memory.dmp

    Filesize

    64KB

  • memory/2372-28-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-0-0x00007FF97DA70000-0x00007FF97DA80000-memory.dmp

    Filesize

    64KB

  • memory/2372-31-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB

  • memory/2372-32-0x00007FF9BD9F0000-0x00007FF9BDBE5000-memory.dmp

    Filesize

    2.0MB