Analysis

  • max time kernel
    160s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:56

General

  • Target

    45dde1a6b4f0b270c3a1b46687f687a24a3a370a0bac78fa9b2779af08dee71d.xls

  • Size

    112KB

  • MD5

    52931c78709787e782150e3eaf6f7303

  • SHA1

    66f1f50c36650e23353a39ae997456f7f39ad241

  • SHA256

    45dde1a6b4f0b270c3a1b46687f687a24a3a370a0bac78fa9b2779af08dee71d

  • SHA512

    67540e0a7f29713211def52e0ecccc41967532285b1079d43e1cb9253ffd2e3db7b6b24e627586eb3083416b7168bb681a98278c96c3380e6caa8675e1ccc6c0

  • SSDEEP

    1536:Jw999AjC5HnhHNW+2I4Xj0U/AJZqZ95Aiu2OzpAgtHADLzQWVbrzmCd7ITkiD2lD:JSLzpAgKAWVbrzRd7ITkD3tlap45klu

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\45dde1a6b4f0b270c3a1b46687f687a24a3a370a0bac78fa9b2779af08dee71d.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:1108
    • 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:1916
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1856
    • 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:1820
    • 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:1680

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/1108-75-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-61-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1108-54-0x000000002F061000-0x000000002F064000-memory.dmp
    Filesize

    12KB

  • memory/1108-58-0x0000000074FD1000-0x0000000074FD3000-memory.dmp
    Filesize

    8KB

  • memory/1108-78-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-60-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-74-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-62-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-63-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-64-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-66-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-65-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-67-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-69-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-68-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-71-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-70-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-73-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-72-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-57-0x00000000720FD000-0x0000000072108000-memory.dmp
    Filesize

    44KB

  • memory/1108-55-0x0000000071111000-0x0000000071113000-memory.dmp
    Filesize

    8KB

  • memory/1108-59-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-77-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-76-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-79-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-80-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-82-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-81-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-85-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-86-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-84-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-83-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-87-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-109-0x0000000000484000-0x0000000000488000-memory.dmp
    Filesize

    16KB

  • memory/1108-385-0x00000000720FD000-0x0000000072108000-memory.dmp
    Filesize

    44KB

  • memory/1108-267-0x00000000720FD000-0x0000000072108000-memory.dmp
    Filesize

    44KB

  • memory/1680-221-0x0000000000000000-mapping.dmp
  • memory/1820-220-0x0000000000000000-mapping.dmp
  • memory/1856-222-0x0000000000000000-mapping.dmp
  • memory/1916-219-0x0000000000000000-mapping.dmp