Analysis

  • max time kernel
    151s
  • max time network
    180s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-01-2023 19:22

General

  • Target

    104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls

  • Size

    36KB

  • MD5

    25dd382ee6cc4750d2b64bad7462b3c6

  • SHA1

    309191c3dd43fa9c1038d8946b60692619b18c2f

  • SHA256

    104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e

  • SHA512

    cedec53b7725427e6d921303af0b4bbd20b4e63801b7f44fce4b71a7e3f013c2a7a5094d9f5f23428c6282fa143e7eda7657ef71663392df35b2c9891cf4db9d

  • SSDEEP

    768:GPqNk3hbdlylKsgqopeJBWhZFGkE+cL2NdAJ62iu8PM6SbqWmg:6ok3hbdlylKsgqopeJBWhZFGkE+cL2Nk

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 SetWindowsHookEx 14 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\104255bbf770c94190edddc49021b5011271126432bbe0f597a61a55755c444e.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:4564
    • C:\Windows\explorer.exe
      explorer.exe C:\Users\Public\Documents\c3IBzBd.vbs
      2⤵
      • Process spawned unexpected child process
      PID:224
  • C:\Windows\explorer.exe
    C:\Windows\explorer.exe /factory,{75dff2b7-6936-4c06-a8bb-676a7b00b24b} -Embedding
    1⤵
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:648
    • C:\Windows\System32\WScript.exe
      "C:\Windows\System32\WScript.exe" "C:\Users\Public\Documents\c3IBzBd.vbs"
      2⤵
        PID:3016

    Network

    MITRE ATT&CK Matrix ATT&CK v6

    Discovery

    Query Registry

    2
    T1012

    System Information Discovery

    2
    T1082

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\Users\Public\Documents\c3IBzBd.vbs
      Filesize

      554B

      MD5

      f28165c087fc763ea1b528dfb07035fb

      SHA1

      a71a64a31a905bb4642bbda5c2a59db7a5c01146

      SHA256

      e8b25d80a07982f01000e23dd6de94d8b8985bdcf48f2094cb5ef9451dbbf194

      SHA512

      6183c6ed1245ea7a7e44f137dcab2f69c471585dd590f64d06cd8cc1bae29b9acecc59324f26d9da6605336defcfb003074cd1068989c18b610d14b8b95654e4

    • memory/224-139-0x0000000000000000-mapping.dmp
    • memory/3016-141-0x0000000000000000-mapping.dmp
    • memory/4564-132-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp
      Filesize

      64KB

    • memory/4564-133-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp
      Filesize

      64KB

    • memory/4564-134-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp
      Filesize

      64KB

    • memory/4564-135-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp
      Filesize

      64KB

    • memory/4564-136-0x00007FFD5C5D0000-0x00007FFD5C5E0000-memory.dmp
      Filesize

      64KB

    • memory/4564-137-0x00007FFD5A380000-0x00007FFD5A390000-memory.dmp
      Filesize

      64KB

    • memory/4564-138-0x00007FFD5A380000-0x00007FFD5A390000-memory.dmp
      Filesize

      64KB