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Analysis

  • max time kernel
    100s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    18/09/2022, 22:25

General

  • Target

    4a4c081dfa3e5ed52c0d83993488035b25bc06131533da4354609672466ad7cd.xls

  • Size

    86KB

  • MD5

    35fd15b09f2879c701cf179a22fa6222

  • SHA1

    d3877787645af1f27f3f3a0aba8eee245f7c2c61

  • SHA256

    4a4c081dfa3e5ed52c0d83993488035b25bc06131533da4354609672466ad7cd

  • SHA512

    6bfca12951c8d9ed09bede775b3708017e468701e0f3af584ad033c0213d758e3a68ad78c4d45a048680424ba8f00152bf365aea93998af3e96a21ba7fb0fe70

  • SSDEEP

    1536:/222yCDdDjqqhxGWVbruQ7ITkScTx23c2UcJMXw0cHx:2i7WVbruQ7ITkCfXJMXw5x

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\4a4c081dfa3e5ed52c0d83993488035b25bc06131533da4354609672466ad7cd.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:1956
    • 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:1868
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1676
    • 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:1724
    • 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:1340

Network

MITRE ATT&CK Enterprise v6

Replay Monitor

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Downloads

  • memory/1956-76-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-72-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-59-0x0000000000596000-0x000000000059C000-memory.dmp

    Filesize

    24KB

  • memory/1956-61-0x0000000000596000-0x000000000059C000-memory.dmp

    Filesize

    24KB

  • memory/1956-62-0x0000000000596000-0x000000000059C000-memory.dmp

    Filesize

    24KB

  • memory/1956-71-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-85-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-84-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-86-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-83-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-82-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-81-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-80-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-79-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-78-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-77-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-54-0x000000002F2F1000-0x000000002F2F4000-memory.dmp

    Filesize

    12KB

  • memory/1956-75-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-60-0x0000000000596000-0x000000000059C000-memory.dmp

    Filesize

    24KB

  • memory/1956-74-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-73-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-70-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-69-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-68-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-67-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-66-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-65-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-64-0x0000000000596000-0x000000000059C000-memory.dmp

    Filesize

    24KB

  • memory/1956-63-0x0000000000596000-0x000000000059C000-memory.dmp

    Filesize

    24KB

  • memory/1956-87-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-109-0x000000000059C000-0x00000000005A0000-memory.dmp

    Filesize

    16KB

  • memory/1956-58-0x0000000075141000-0x0000000075143000-memory.dmp

    Filesize

    8KB

  • memory/1956-57-0x0000000071F6D000-0x0000000071F78000-memory.dmp

    Filesize

    44KB

  • memory/1956-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

    Filesize

    64KB

  • memory/1956-55-0x0000000070F81000-0x0000000070F83000-memory.dmp

    Filesize

    8KB

  • memory/1956-383-0x0000000071F6D000-0x0000000071F78000-memory.dmp

    Filesize

    44KB

  • memory/1956-385-0x0000000071F6D000-0x0000000071F78000-memory.dmp

    Filesize

    44KB