Analysis

  • max time kernel
    105s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:17

General

  • Target

    8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76.xls

  • Size

    100KB

  • MD5

    eeef638de5651e59c5dc24836f37306c

  • SHA1

    be14cdd2fde6dd1165204a81f19b20783e2a4db7

  • SHA256

    8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76

  • SHA512

    9b9d9ddad6d987787b35fd481bef6ea477fa8b80691fecb180b0bf9bd345b3cfcde9bba21f1487a0aeabaa3bb12084d963e45c0a7f2a2392105bc29ec6be1a90

  • SSDEEP

    1536:go777VmRqV+4w75Z5sKJQHnwZ95J6eoJLWVbrzJxE6HD7ITkR62lIM88STJtXwRe:V5zWVbrzJ6KD7ITk9njiJtXwL5kacsG

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\8ab516628cdac8d4a61e48303cc71933e8e2ce18eb0b79eaf63054076c636d76.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:1376
    • 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:524
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1652
    • 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:1176
    • 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:1064

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/524-219-0x0000000000000000-mapping.dmp
  • memory/1064-221-0x0000000000000000-mapping.dmp
  • memory/1176-220-0x0000000000000000-mapping.dmp
  • memory/1376-76-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-383-0x000000007243D000-0x0000000072448000-memory.dmp
    Filesize

    44KB

  • memory/1376-61-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-60-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-59-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-65-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-64-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-63-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-74-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-67-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-66-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-68-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-69-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-70-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-71-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-72-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-75-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-54-0x000000002F741000-0x000000002F744000-memory.dmp
    Filesize

    12KB

  • memory/1376-62-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-58-0x0000000075091000-0x0000000075093000-memory.dmp
    Filesize

    8KB

  • memory/1376-84-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-80-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-78-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-77-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-83-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-79-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-82-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-81-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-85-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-86-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-87-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-109-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1376-57-0x000000007243D000-0x0000000072448000-memory.dmp
    Filesize

    44KB

  • memory/1376-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1376-385-0x000000007243D000-0x0000000072448000-memory.dmp
    Filesize

    44KB

  • memory/1376-55-0x0000000071451000-0x0000000071453000-memory.dmp
    Filesize

    8KB

  • memory/1376-73-0x0000000000501000-0x000000000050B000-memory.dmp
    Filesize

    40KB

  • memory/1652-222-0x0000000000000000-mapping.dmp