Analysis

  • max time kernel
    101s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:56

General

  • Target

    控制价/如东县岔河镇古坝小学教学楼新建工程-土建.xls

  • Size

    185KB

  • MD5

    9a67a32b8de92fffa5c00a570c64558a

  • SHA1

    1d92473d39544f79fd3dd62375b63cbfa47850de

  • SHA256

    8fca49370c4d1f986e6b1850748d18182a879c05f5bc709800ea3a02a4ccf992

  • SHA512

    b2658a4fe2195b48efec092f2f6c633a9a79629c98f7b7107e1b1636698262eb9a1bc899c86b1a786a1e33bb02e8de0c5484a62eae462f11c3a0685f254f80fe

  • SSDEEP

    3072:eF+HEK6EIJiRLHJ+O01uWVbh2zQ7ITk9pxJtXwkv42Q:fHD7G

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\控制价\如东县岔河镇古坝小学教学楼新建工程-土建.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:1976
    • 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:1712
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:472
    • 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:1320
    • 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:276

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/276-221-0x0000000000000000-mapping.dmp
  • memory/472-222-0x0000000000000000-mapping.dmp
  • memory/1320-220-0x0000000000000000-mapping.dmp
  • memory/1712-219-0x0000000000000000-mapping.dmp
  • memory/1976-73-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-223-0x000000007298D000-0x0000000072998000-memory.dmp
    Filesize

    44KB

  • memory/1976-61-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-75-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-62-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-64-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-63-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-66-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-65-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-67-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-68-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-69-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-70-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-71-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-72-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-74-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-54-0x000000002F421000-0x000000002F424000-memory.dmp
    Filesize

    12KB

  • memory/1976-76-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-60-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-59-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-79-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-78-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-83-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-82-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-81-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-80-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-84-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-86-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-85-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-87-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-109-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-58-0x0000000075831000-0x0000000075833000-memory.dmp
    Filesize

    8KB

  • memory/1976-57-0x000000007298D000-0x0000000072998000-memory.dmp
    Filesize

    44KB

  • memory/1976-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1976-55-0x00000000719A1000-0x00000000719A3000-memory.dmp
    Filesize

    8KB

  • memory/1976-77-0x0000000000603000-0x0000000000607000-memory.dmp
    Filesize

    16KB

  • memory/1976-385-0x000000007298D000-0x0000000072998000-memory.dmp
    Filesize

    44KB