Analysis

  • max time kernel
    105s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 11:48

General

  • Target

    08ac06ececfb7b3546ae9ba77ac046d86b192486fb2c482ecc34ab5ff4c4d36c.xls

  • Size

    120KB

  • MD5

    0d64cad7bc096cd84ba3a20d7493bf06

  • SHA1

    33a20591020904eeb5f31eaf1e5b9be2736f6e4c

  • SHA256

    08ac06ececfb7b3546ae9ba77ac046d86b192486fb2c482ecc34ab5ff4c4d36c

  • SHA512

    8caf01a0b63944474fa758abccc2f52f48cb71d3cf141a8e65a4f36e1785ac89abf2378488374a6bd43c4237c2ea1e639567aae7ae28ada168b5048aba88efbe

  • SSDEEP

    1536:YJJJJlhIzUL5uaiaL8KiIqfgAJLD6d/GY3EnvFBlmb2uRxIldNxOMw2jcc0lbxOk:iUnA622jcc0lbxOr7jhJtXwrJ

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\08ac06ececfb7b3546ae9ba77ac046d86b192486fb2c482ecc34ab5ff4c4d36c.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:2032
    • 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:372
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:612
    • 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:1720
    • 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:1520

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/372-219-0x0000000000000000-mapping.dmp
  • memory/612-222-0x0000000000000000-mapping.dmp
  • memory/1520-221-0x0000000000000000-mapping.dmp
  • memory/1720-220-0x0000000000000000-mapping.dmp
  • memory/2032-73-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-55-0x0000000071AE1000-0x0000000071AE3000-memory.dmp
    Filesize

    8KB

  • memory/2032-59-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-61-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-67-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-84-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-54-0x000000002F571000-0x000000002F574000-memory.dmp
    Filesize

    12KB

  • memory/2032-83-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-82-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-81-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-80-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-79-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-86-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-78-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-77-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-76-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-75-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-71-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-85-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-60-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-74-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-70-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-69-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-68-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-66-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-65-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-64-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-63-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-62-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-87-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-109-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-58-0x0000000072ACD000-0x0000000072AD8000-memory.dmp
    Filesize

    44KB

  • memory/2032-57-0x0000000075A71000-0x0000000075A73000-memory.dmp
    Filesize

    8KB

  • memory/2032-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2032-72-0x0000000000435000-0x000000000043E000-memory.dmp
    Filesize

    36KB

  • memory/2032-223-0x0000000000438000-0x000000000043A000-memory.dmp
    Filesize

    8KB

  • memory/2032-384-0x0000000000438000-0x000000000043A000-memory.dmp
    Filesize

    8KB

  • memory/2032-385-0x0000000072ACD000-0x0000000072AD8000-memory.dmp
    Filesize

    44KB

  • memory/2032-386-0x0000000000438000-0x000000000043A000-memory.dmp
    Filesize

    8KB

  • memory/2032-388-0x0000000072ACD000-0x0000000072AD8000-memory.dmp
    Filesize

    44KB