Analysis

  • max time kernel
    59s
  • max time network
    35s
  • 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 22:04

General

  • Target

    a79c44d70d375a1114be86656363f59bfd2e3f675f090ef124a47e4e87e042d4.xls

  • Size

    36KB

  • MD5

    8ca4889cfb1abbd167fc1f1b55ccff10

  • SHA1

    6fb4fb185edaf0fea9e8bdcbe2a08c8177360c9d

  • SHA256

    a79c44d70d375a1114be86656363f59bfd2e3f675f090ef124a47e4e87e042d4

  • SHA512

    a9f24db0a162d16e8896d537aaddcac3b5ad241ef5fb438c2cd96e40baa73a53dc7f17b3138d4c849b408258df5097d16d3697b0aafc5f0a898bf9f4c6870798

  • SSDEEP

    768:TPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJieRjSjtRuHqcTai8J:Lok3hbdlylKsgqopeJBWhZFGkE+cL2NB

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.

  • 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\a79c44d70d375a1114be86656363f59bfd2e3f675f090ef124a47e4e87e042d4.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:4728
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\YrkHXr.vbs
      2⤵
      • Process spawned unexpected child process
      PID:2656
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1108
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\YrkHXr.vbs"
      2⤵
        PID:1348

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

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

      Filesize

      580B

      MD5

      e44f54f266828b01033e537ef1ea23d3

      SHA1

      98695dacefc757ef56d39f0eda3200f7a3708c52

      SHA256

      8b66942c59fa01cea50ed02e8fc9fed096fa8c981ef8e16dc4a5a216271ebd60

      SHA512

      65e7e53b287df0ca76f38514f1739d020ed9c91583708e821ec806094c3d5ce8f36fc4e4eba6b4fffc7aab625c430e06121d3035371ccc2a4cddfbf2076f72be

    • memory/4728-15-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-3-0x00007FFEB2110000-0x00007FFEB2120000-memory.dmp

      Filesize

      64KB

    • memory/4728-16-0x00007FFEAFCD0000-0x00007FFEAFCE0000-memory.dmp

      Filesize

      64KB

    • memory/4728-2-0x00007FFEB2110000-0x00007FFEB2120000-memory.dmp

      Filesize

      64KB

    • memory/4728-5-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-6-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-7-0x00007FFEB2110000-0x00007FFEB2120000-memory.dmp

      Filesize

      64KB

    • memory/4728-9-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-13-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-0-0x00007FFEB2110000-0x00007FFEB2120000-memory.dmp

      Filesize

      64KB

    • memory/4728-32-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-4-0x00007FFEB2110000-0x00007FFEB2120000-memory.dmp

      Filesize

      64KB

    • memory/4728-11-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-17-0x00007FFEAFCD0000-0x00007FFEAFCE0000-memory.dmp

      Filesize

      64KB

    • memory/4728-12-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-10-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-8-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-1-0x00007FFEF212D000-0x00007FFEF212E000-memory.dmp

      Filesize

      4KB

    • memory/4728-29-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-30-0x00007FFEF212D000-0x00007FFEF212E000-memory.dmp

      Filesize

      4KB

    • memory/4728-31-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB

    • memory/4728-14-0x00007FFEF2090000-0x00007FFEF2285000-memory.dmp

      Filesize

      2.0MB