Analysis

  • max time kernel
    107s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22-11-2022 22:00

General

  • Target

    1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807.xls

  • Size

    93KB

  • MD5

    148822097790346ec89d758b2eced4b0

  • SHA1

    de091209e95114b411eef35a4195ae6168466c05

  • SHA256

    1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807

  • SHA512

    007bd00fc575d9a7ca7eeea9d6d73399561d5b726d0e265069f8184499079506525118aeba962f9b8850725203657aa3135eff722ff318e1f5a1ee4b9bcee9d5

  • SSDEEP

    1536:ennnjmqnTKEQiZWVbrzQ7Igf7hkbA23gcfrbeWt2XKGJKA:QKwWVbrzQ7IgNkZhjyaIKA

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 3 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\1afb8577dc10dab0b4d793fcb1ce324c8c36e9a834214a536dd4c5f38192b807.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:848
    • 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:1932
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1784
    • 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:1924
    • 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:1792

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/848-382-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-383-0x00000000724ED000-0x00000000724F8000-memory.dmp
    Filesize

    44KB

  • memory/848-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/848-57-0x00000000724ED000-0x00000000724F8000-memory.dmp
    Filesize

    44KB

  • memory/848-58-0x0000000075041000-0x0000000075043000-memory.dmp
    Filesize

    8KB

  • memory/848-60-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-59-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-61-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-62-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-63-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-385-0x00000000724ED000-0x00000000724F8000-memory.dmp
    Filesize

    44KB

  • memory/848-55-0x0000000071501000-0x0000000071503000-memory.dmp
    Filesize

    8KB

  • memory/848-64-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-384-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/848-380-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-268-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-267-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-269-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/848-54-0x000000002F321000-0x000000002F324000-memory.dmp
    Filesize

    12KB

  • memory/848-381-0x0000000000422000-0x000000000042B000-memory.dmp
    Filesize

    36KB

  • memory/1784-222-0x0000000000000000-mapping.dmp
  • memory/1792-221-0x0000000000000000-mapping.dmp
  • memory/1924-220-0x0000000000000000-mapping.dmp
  • memory/1932-219-0x0000000000000000-mapping.dmp