Analysis

  • max time kernel
    188s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 01:24

General

  • Target

    8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1.xls

  • Size

    102KB

  • MD5

    394f354ce29c6b174d87705f18e15f6e

  • SHA1

    86340e61109cad89c5781da3177d91e2556b8fe5

  • SHA256

    8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1

  • SHA512

    4b29aa04949da268242b50a75f6e315f47754d48e7554efb8f920692d08d2ed1d402dd9ac5607a45aaf7fd89491a4a0d5be1c7d3ff7a3ed3cc933611a8ea2dc5

  • SSDEEP

    1536:qmmmCmhF9kTE86dok3mXU7oqeHrZ95MHDquWVvrzQ7ITkwMlJx23LV88ScJtXwBl:U0WVvrzQ7ITkwHRjhJtXw3H

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 7 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\8aaea0584bbc9a96080d1d3084fef91cc170cdb6143e99eba62c77a51d12a8d1.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:1456
    • 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:1144
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1768
    • 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:1696
    • 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:756

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/756-223-0x0000000000000000-mapping.dmp
  • memory/1144-221-0x0000000000000000-mapping.dmp
  • memory/1456-75-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-60-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-58-0x0000000072CBD000-0x0000000072CC8000-memory.dmp
    Filesize

    44KB

  • memory/1456-78-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-59-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-61-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-62-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-63-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-64-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-65-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-54-0x000000002FB31000-0x000000002FB34000-memory.dmp
    Filesize

    12KB

  • memory/1456-67-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-77-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-69-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-70-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-71-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-73-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-72-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-74-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-76-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-66-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-57-0x00000000766F1000-0x00000000766F3000-memory.dmp
    Filesize

    8KB

  • memory/1456-68-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-79-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-80-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-81-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-82-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-84-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-83-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-85-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-86-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-87-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-109-0x0000000000790000-0x0000000000794000-memory.dmp
    Filesize

    16KB

  • memory/1456-153-0x0000000000791000-0x0000000000793000-memory.dmp
    Filesize

    8KB

  • memory/1456-176-0x0000000000791000-0x0000000000793000-memory.dmp
    Filesize

    8KB

  • memory/1456-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1456-55-0x0000000071CD1000-0x0000000071CD3000-memory.dmp
    Filesize

    8KB

  • memory/1456-389-0x0000000000791000-0x0000000000793000-memory.dmp
    Filesize

    8KB

  • memory/1456-319-0x0000000000791000-0x0000000000793000-memory.dmp
    Filesize

    8KB

  • memory/1456-225-0x0000000072CBD000-0x0000000072CC8000-memory.dmp
    Filesize

    44KB

  • memory/1456-226-0x0000000000791000-0x0000000000793000-memory.dmp
    Filesize

    8KB

  • memory/1456-271-0x0000000000791000-0x0000000000793000-memory.dmp
    Filesize

    8KB

  • memory/1696-222-0x0000000000000000-mapping.dmp
  • memory/1768-224-0x0000000000000000-mapping.dmp