Analysis

  • max time kernel
    116s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    25-11-2022 11:48

General

  • Target

    1051d8424fbae2eb7605a6f6ec4a18c7f3365094a8be768dfd517d26c51b44cb.xls

  • Size

    83KB

  • MD5

    02b746f42a2b0f85de6fe66b12074c30

  • SHA1

    49d468a35df277d531b5d859d1927f95276923c5

  • SHA256

    1051d8424fbae2eb7605a6f6ec4a18c7f3365094a8be768dfd517d26c51b44cb

  • SHA512

    78feb028b2f188aa39fb82f60171a4acff3651a63eec587c9ad35441ad5b0db2043892c4f01dc39217328e06158f07e220b732911c0cd37c5dba89e0e599756b

  • SSDEEP

    1536:h2222y+v0c7wnCEVEyClEX2jcc0lbxOvTgZuIhY7nJdJoOd7cJtXwjrW:8EM2jcc0lbxOrC2AJtXw3W

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\1051d8424fbae2eb7605a6f6ec4a18c7f3365094a8be768dfd517d26c51b44cb.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:1236
    • 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:300
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1544
    • 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:972
    • 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:1756

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/300-219-0x0000000000000000-mapping.dmp
  • memory/972-220-0x0000000000000000-mapping.dmp
  • memory/1236-226-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1236-389-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1236-58-0x0000000075991000-0x0000000075993000-memory.dmp
    Filesize

    8KB

  • memory/1236-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1236-55-0x0000000070FB1000-0x0000000070FB3000-memory.dmp
    Filesize

    8KB

  • memory/1236-392-0x0000000071F9D000-0x0000000071FA8000-memory.dmp
    Filesize

    44KB

  • memory/1236-391-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1236-223-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1236-224-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1236-225-0x0000000071F9D000-0x0000000071FA8000-memory.dmp
    Filesize

    44KB

  • memory/1236-54-0x000000002FB51000-0x000000002FB54000-memory.dmp
    Filesize

    12KB

  • memory/1236-387-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1236-388-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1236-57-0x0000000071F9D000-0x0000000071FA8000-memory.dmp
    Filesize

    44KB

  • memory/1236-390-0x00000000056C0000-0x00000000057C0000-memory.dmp
    Filesize

    1024KB

  • memory/1544-222-0x0000000000000000-mapping.dmp
  • memory/1756-221-0x0000000000000000-mapping.dmp