Analysis

  • max time kernel
    106s
  • max time network
    48s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 19:24

General

  • Target

    维修一三组10月运转设备报表.xls

  • Size

    119KB

  • MD5

    bc975b54fc42712a23b86c4f9cb072a3

  • SHA1

    d19a838a3569ed2831248c2045b6d6f3b340442b

  • SHA256

    e6a7b74210342e244a5a0d692e49d205fded4f2d75357785ad971a31767923d0

  • SHA512

    4729ac1dac2a3547ed664fc5fa27dc3880f20285fcfae8a6fde6594c6302cabc119a869538bc1db904cc11c80085151af742ed6e0640a6d2241a32009bbffc47

  • SSDEEP

    1536:UG666clXwWXbAI7cvwQq/B5ZJChyRfMZ95e+ejRBSWVbrzNKQsz7ITkR62lD5EeU:lx+NWVbrzcz7ITk9fEdJtXwY5kHGNv5

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\维修一三组10月运转设备报表.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:1708
    • 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:1484
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:980
    • 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:1232
    • 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:1140

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/980-222-0x0000000000000000-mapping.dmp
  • memory/1140-221-0x0000000000000000-mapping.dmp
  • memory/1232-220-0x0000000000000000-mapping.dmp
  • memory/1484-219-0x0000000000000000-mapping.dmp
  • memory/1708-72-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-383-0x0000000071E2D000-0x0000000071E38000-memory.dmp
    Filesize

    44KB

  • memory/1708-60-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-78-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-62-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-63-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-65-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-69-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-70-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-67-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-68-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-66-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-64-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-75-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-74-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-73-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-54-0x000000002FF81000-0x000000002FF84000-memory.dmp
    Filesize

    12KB

  • memory/1708-71-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-61-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-59-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-82-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-77-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-83-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-81-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-80-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-76-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-86-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-85-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-84-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-87-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-109-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-58-0x0000000075111000-0x0000000075113000-memory.dmp
    Filesize

    8KB

  • memory/1708-57-0x0000000071E2D000-0x0000000071E38000-memory.dmp
    Filesize

    44KB

  • memory/1708-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1708-55-0x0000000070E41000-0x0000000070E43000-memory.dmp
    Filesize

    8KB

  • memory/1708-79-0x000000000074D000-0x0000000000757000-memory.dmp
    Filesize

    40KB

  • memory/1708-385-0x0000000071E2D000-0x0000000071E38000-memory.dmp
    Filesize

    44KB