Analysis

  • max time kernel
    114s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 18:39

General

  • Target

    8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123.xls

  • Size

    80KB

  • MD5

    dca7db19ef4ced6b37cbbfd863dfe262

  • SHA1

    09236c00aa9215dfbf4dbd5434f8a94a98d460b7

  • SHA256

    8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123

  • SHA512

    4ca5ab2728d05fcc2f293cd7aa1901f2ceb134d589d3d68042dc366ee051fd9f432a7d82c6d3c1929eedcf6c1c46ac7311bb7eef5ddacbbd5abdb8aaf40c3fa1

  • SSDEEP

    1536:5eeeqi17DS2jcc0lbxOvTgZBuITWWt2XKCZCt1:Y82jcc0lbxOrhISalt1

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.

  • Deletes itself 1 IoCs
  • 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 31 IoCs
  • Modifies registry class 64 IoCs
  • NTFS ADS 1 IoCs
  • Suspicious behavior: AddClipboardFormatListener 1 IoCs
  • Suspicious behavior: RenamesItself 1 IoCs
  • Suspicious use of SetWindowsHookEx 5 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\8deef7f3fd6e2cd3f2c2157aa0e4852afdc936ec5e4ba74958d566df7140f123.xls
    1⤵
    • Deletes itself
    • Enumerates system info in registry
    • Modifies Internet Explorer settings
    • Modifies registry class
    • NTFS ADS
    • Suspicious behavior: AddClipboardFormatListener
    • Suspicious behavior: RenamesItself
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2012
    • 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:1860
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1516
    • 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:584
    • 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:344

Network

MITRE ATT&CK Matrix ATT&CK v6

Persistence

Hidden Files and Directories

1
T1158

Defense Evasion

Modify Registry

1
T1112

Hidden Files and Directories

1
T1158

Discovery

Query Registry

1
T1012

System Information Discovery

1
T1082

Replay Monitor

Loading Replay Monitor...

Downloads

  • memory/344-215-0x0000000000000000-mapping.dmp
  • memory/584-214-0x0000000000000000-mapping.dmp
  • memory/1516-216-0x0000000000000000-mapping.dmp
  • memory/1860-213-0x0000000000000000-mapping.dmp
  • memory/2012-70-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-73-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-61-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-60-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-62-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-63-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-64-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-65-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-66-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-67-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-69-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-68-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-54-0x000000002F581000-0x000000002F584000-memory.dmp
    Filesize

    12KB

  • memory/2012-71-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-72-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-59-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-75-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-74-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-76-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-78-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-77-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-79-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-80-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-81-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-103-0x000000000046C000-0x0000000000470000-memory.dmp
    Filesize

    16KB

  • memory/2012-58-0x0000000076AE1000-0x0000000076AE3000-memory.dmp
    Filesize

    8KB

  • memory/2012-57-0x0000000072A8D000-0x0000000072A98000-memory.dmp
    Filesize

    44KB

  • memory/2012-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2012-55-0x0000000071AA1000-0x0000000071AA3000-memory.dmp
    Filesize

    8KB

  • memory/2012-217-0x0000000072A8D000-0x0000000072A98000-memory.dmp
    Filesize

    44KB

  • memory/2012-395-0x0000000072A8D000-0x0000000072A98000-memory.dmp
    Filesize

    44KB