Analysis

  • max time kernel
    105s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 14:54

General

  • Target

    c08340e867306c0f662f9564dc9f3658636989be49efed27d58392ab59e91b88.xls

  • Size

    96KB

  • MD5

    367cd7e79159279583713efa65d3d6da

  • SHA1

    cd55fe65896e6b62cc9ee1a9aa78efd2bbf29983

  • SHA256

    c08340e867306c0f662f9564dc9f3658636989be49efed27d58392ab59e91b88

  • SHA512

    49afc44fb7ec788f492ecb4504b748c7cb9c2ea188388ef92a88aed5ffddecb9a04f3ef3f8a5e3ea4304ee3093c7d8c06292a2e20d058af0d354855d748dde1a

  • SSDEEP

    1536:LOOOOoV4Ai72WVbreQmKYQ7ITkiD2EmO/WKF1pSmSM2M/M0Gy:SfWVbreDpQ7ITkDHCVl5kly

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\c08340e867306c0f662f9564dc9f3658636989be49efed27d58392ab59e91b88.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:1288
    • 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:304
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1536
    • 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:1120
    • 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:1640

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/304-219-0x0000000000000000-mapping.dmp
  • memory/1120-220-0x0000000000000000-mapping.dmp
  • memory/1288-76-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1288-58-0x0000000075FE1000-0x0000000075FE3000-memory.dmp
    Filesize

    8KB

  • memory/1288-59-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-60-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-61-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-62-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-67-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-66-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-65-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-64-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-63-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-68-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-73-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-71-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-70-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-69-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-75-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-383-0x000000007240D000-0x0000000072418000-memory.dmp
    Filesize

    44KB

  • memory/1288-57-0x000000007240D000-0x0000000072418000-memory.dmp
    Filesize

    44KB

  • memory/1288-72-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-79-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-80-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-78-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-77-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-83-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-84-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-82-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-81-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-86-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-85-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-87-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-109-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-74-0x0000000000932000-0x000000000093C000-memory.dmp
    Filesize

    40KB

  • memory/1288-55-0x0000000071421000-0x0000000071423000-memory.dmp
    Filesize

    8KB

  • memory/1288-385-0x000000007240D000-0x0000000072418000-memory.dmp
    Filesize

    44KB

  • memory/1288-54-0x000000002FD71000-0x000000002FD74000-memory.dmp
    Filesize

    12KB

  • memory/1536-222-0x0000000000000000-mapping.dmp
  • memory/1640-221-0x0000000000000000-mapping.dmp