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Analysis

  • max time kernel
    102s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    28/12/2023, 06:35

General

  • Target

    cc31c5d769e28c33b79dfb1c2b6cbea6.xls

  • Size

    317KB

  • MD5

    cc31c5d769e28c33b79dfb1c2b6cbea6

  • SHA1

    c796c4c1878053f2e5ec3b70bdd84b304d1c4c30

  • SHA256

    48c8327b8fa0bd5e233a28148952aacad1180803bd004d344321eadc6c710479

  • SHA512

    dfd4d3ac4510b67bef8fcc4730c7d625b3860139859e82a5bf417a12ea2b438f88e7b46cc470378eda0fb75d37892e944ae925bfc9a3d030f4cd93003576f45e

  • SSDEEP

    6144:wz+dIDeVH2K6CLNBYxDjYl76c2bOAGriOQR6pxHkOn:sDVVzGrKR6

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 3 IoCs

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

  • Office loads VBA resources, possible macro or embedded object present
  • Enumerates system info in registry 2 TTPs 1 IoCs
  • Modifies Internet Explorer settings 1 TTPs 9 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs
  • Views/modifies file attributes 1 TTPs 1 IoCs

Processes

  • C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
    "C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde C:\Users\Admin\AppData\Local\Temp\cc31c5d769e28c33b79dfb1c2b6cbea6.xls
    1⤵
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: GetForegroundWindowSpam
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2480
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1568
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      PID:1660
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
      2⤵
      • Process spawned unexpected child process
      • Suspicious use of WriteProcessMemory
      PID:276
  • C:\Windows\SysWOW64\attrib.exe
    attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
    1⤵
    • Views/modifies file attributes
    PID:1868

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • memory/2480-1-0x000000007242D000-0x0000000072438000-memory.dmp

    Filesize

    44KB

  • memory/2480-0-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/2480-4-0x000000007242D000-0x0000000072438000-memory.dmp

    Filesize

    44KB

  • memory/2480-6-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-5-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-9-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-17-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-29-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-35-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-34-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-57-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-33-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-32-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-83-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-107-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-31-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-30-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-28-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-130-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-149-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-177-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-203-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-248-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-228-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-274-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-301-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-321-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-27-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-26-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-25-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-24-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-23-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-22-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-21-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-20-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-19-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-18-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-16-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-15-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-14-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-13-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-12-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-11-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-10-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-8-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-7-0x0000000000680000-0x0000000000780000-memory.dmp

    Filesize

    1024KB

  • memory/2480-355-0x000000007242D000-0x0000000072438000-memory.dmp

    Filesize

    44KB