Analysis

  • max time kernel
    110s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    03-12-2022 12:43

General

  • Target

    883e0ec982fb82a914fd195b66978ae85704f63f87ead24b515091d775f534e6.xls

  • Size

    99KB

  • MD5

    947461df29d97e07b5244fee8eebc5b9

  • SHA1

    945078175ae05b349bcfcb108afe2b9160ca9957

  • SHA256

    883e0ec982fb82a914fd195b66978ae85704f63f87ead24b515091d775f534e6

  • SHA512

    b7274af9ae028f327a877e4b8bcc9f96d46ff5d7980ed1975f6425d01b269f6ebf6b83783542eb84377c28bea6e9bbcce65adb24b72ac0ca7fc6a4c9b4ac6d14

  • SSDEEP

    1536:xwwww8pe2RJIsopWVbrM8atQWQ7ITkR62lWl3X8SHJtXwRHM2M/MVhPQ/:RWVbrMQWQ7ITk9S3s2JtXw25kPQ/

Score
10/10

Malware Config

Signatures

  • Process spawned unexpected child process 4 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 20 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\883e0ec982fb82a914fd195b66978ae85704f63f87ead24b515091d775f534e6.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:2020
    • 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:840
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:2036
    • 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:560
    • 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:1860
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\System32\wscript.exe" E:\KK\883e0ec982fb82a914fd195b66978ae85704f63f87ead24b515091d775f534e6_Search.vbs
      2⤵
      • Process spawned unexpected child process
      PID:1596

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/560-222-0x0000000000000000-mapping.dmp
  • memory/840-220-0x0000000000000000-mapping.dmp
  • memory/1596-312-0x0000000000000000-mapping.dmp
  • memory/1860-221-0x0000000000000000-mapping.dmp
  • memory/2020-81-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-80-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-67-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-70-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-73-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-74-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-75-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-76-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-84-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-86-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-87-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-85-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-83-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-82-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-54-0x000000002F9E1000-0x000000002F9E4000-memory.dmp
    Filesize

    12KB

  • memory/2020-66-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-79-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-78-0x000000007219D000-0x00000000721A8000-memory.dmp
    Filesize

    44KB

  • memory/2020-77-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-72-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-71-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-69-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-68-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-65-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-88-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-110-0x00000000002E0000-0x00000000003E0000-memory.dmp
    Filesize

    1024KB

  • memory/2020-58-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB

  • memory/2020-57-0x000000007219D000-0x00000000721A8000-memory.dmp
    Filesize

    44KB

  • memory/2020-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/2020-430-0x000000007219D000-0x00000000721A8000-memory.dmp
    Filesize

    44KB

  • memory/2020-55-0x00000000711B1000-0x00000000711B3000-memory.dmp
    Filesize

    8KB

  • memory/2036-223-0x0000000000000000-mapping.dmp