Analysis

  • max time kernel
    59s
  • max time network
    34s
  • 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 22:09

General

  • Target

    c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b.xls

  • Size

    36KB

  • MD5

    d674ff31458f092405d0325722210e81

  • SHA1

    c521c429efc9078a34527f0085a4dd9089b178eb

  • SHA256

    c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b

  • SHA512

    0e390ebec8b8cbeb2b809965af0b6d226cb6a0deb08620db3b3a059bf9f74f12fca37c3d1f37b7bb4ac1e5955d7f0bd40a4bb4af3798ec4d855daef3964a6829

  • SSDEEP

    768:bPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJlcK0hUoYf+ooV:jok3hbdlylKsgqopeJBWhZFGkE+cL2N7

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\c5a2c876c7f5d78801825f71e6dbe0145d6f9967a8c1930d01cf2336f45ffa1b.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:2404
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\NB127.vbs
      2⤵
      • Process spawned unexpected child process
      PID:2016
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:1292
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\NB127.vbs"
      2⤵
        PID:4552

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Documents\NB127.vbs

      Filesize

      597B

      MD5

      33808777eb2b9ed582ba7fdc79781e9c

      SHA1

      bdb5f3b64701de05ef0abfdf4632369d7ab81df4

      SHA256

      45d6efc5d51f8e67751f8e6c03eddb3dd6e1685691977d136d484fa146f679d0

      SHA512

      e8bd296488e5c2a3a2eccde2cdb71fea1da49aae5b679a992d70b69c9904cf5b2500408f9ef4bddc938a47cfac53a207b9a7248776d93882a04abd30e210940f

    • memory/2404-17-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-36-0x00007FFD9E1AD000-0x00007FFD9E1AE000-memory.dmp

      Filesize

      4KB

    • memory/2404-2-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

      Filesize

      64KB

    • memory/2404-10-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-4-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

      Filesize

      64KB

    • memory/2404-9-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-12-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-11-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-13-0x00007FFD5BB50000-0x00007FFD5BB60000-memory.dmp

      Filesize

      64KB

    • memory/2404-14-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-15-0x00007FFD5BB50000-0x00007FFD5BB60000-memory.dmp

      Filesize

      64KB

    • memory/2404-8-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-41-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-3-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

      Filesize

      64KB

    • memory/2404-19-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-21-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-23-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-22-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-20-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-16-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-7-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-6-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-5-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

      Filesize

      64KB

    • memory/2404-0-0x00007FFD5E190000-0x00007FFD5E1A0000-memory.dmp

      Filesize

      64KB

    • memory/2404-35-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-1-0x00007FFD9E1AD000-0x00007FFD9E1AE000-memory.dmp

      Filesize

      4KB

    • memory/2404-37-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB

    • memory/2404-18-0x00007FFD9E110000-0x00007FFD9E305000-memory.dmp

      Filesize

      2.0MB