Analysis

  • max time kernel
    188s
  • max time network
    194s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27-11-2022 02:54

General

  • Target

    e44d3a8b0d01423006b7b62214692b896318e71ca588fc575774ebbfd7355373.xls

  • Size

    93KB

  • MD5

    f181d0c43690b68e13c78bfd30c729a5

  • SHA1

    0205aad940ef3e5f35255035b59c3dd1ded9c76c

  • SHA256

    e44d3a8b0d01423006b7b62214692b896318e71ca588fc575774ebbfd7355373

  • SHA512

    488ecf4115d48218f4171e5ccd8ec9068351100142e1bbc307cf71eeea0ecaffb8ee4f20e920b237537dac7235dec1c1bafbbd89e5ee9eb5a2cdd5aeb141e435

  • SSDEEP

    1536:HOOOO67Dy1SN12lXbjSytC2BhYS6D8YUYh1gxv7yZmspH7+cclKiEZClsPI4uko:yh1gxv7yZmspH7+cclKisPI4ukoRWGNY

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.

  • 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
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 14 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs
  • Views/modifies file attributes 1 TTPs 1 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\e44d3a8b0d01423006b7b62214692b896318e71ca588fc575774ebbfd7355373.xls"
    1⤵
    • Checks processor information in registry
    • Enumerates system info in registry
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious use of FindShellTrayWindow
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:3024
    • C:\Windows\system32\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:212
      • C:\Windows\system32\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:3692
    • C:\Windows\system32\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:3084
    • C:\Windows\system32\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:1436

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Hidden Files and Directories

1
T1158

Discovery

Query Registry

2
T1012

System Information Discovery

2
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/212-139-0x0000000000000000-mapping.dmp
  • memory/1436-141-0x0000000000000000-mapping.dmp
  • memory/3024-138-0x00007FFA55FB0000-0x00007FFA55FC0000-memory.dmp
    Filesize

    64KB

  • memory/3024-135-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-136-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-137-0x00007FFA55FB0000-0x00007FFA55FC0000-memory.dmp
    Filesize

    64KB

  • memory/3024-132-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-134-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-133-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-144-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-145-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-147-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3024-146-0x00007FFA58010000-0x00007FFA58020000-memory.dmp
    Filesize

    64KB

  • memory/3084-140-0x0000000000000000-mapping.dmp
  • memory/3692-142-0x0000000000000000-mapping.dmp