Analysis

  • max time kernel
    102s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    26-11-2022 03:10

General

  • Target

    30368a219f589668cad7d2e968c0453f77179109bcfbe1ba9c4708ac87f9f6bc.xls

  • Size

    126KB

  • MD5

    88508ff8de4dd1d04476e73af1da3257

  • SHA1

    e805fece3934b518db82547ade20566ac802cf27

  • SHA256

    30368a219f589668cad7d2e968c0453f77179109bcfbe1ba9c4708ac87f9f6bc

  • SHA512

    0980083099117311bb102550af36a41f6c94fb85d6e6cfa310a2d8fbb016eb391fe1bdfc4cfcaa49117f64aec66522b40658cc4202014fc7ca146ae5860cb87e

  • SSDEEP

    1536:lQQQQ/PuBkapzNC9LFujoBWVOrzQ7ITkzSDA23bcfreWWt2XKu2p:pekapzsWVOrzQ7ITkzcwjva5p

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\30368a219f589668cad7d2e968c0453f77179109bcfbe1ba9c4708ac87f9f6bc.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:1404
    • 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:2016
    • 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:1312
    • 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:1176

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/840-220-0x0000000000000000-mapping.dmp
  • memory/1176-222-0x0000000000000000-mapping.dmp
  • memory/1312-221-0x0000000000000000-mapping.dmp
  • memory/1404-54-0x000000002FD61000-0x000000002FD64000-memory.dmp
    Filesize

    12KB

  • memory/1404-55-0x00000000711B1000-0x00000000711B3000-memory.dmp
    Filesize

    8KB

  • memory/1404-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1404-57-0x000000007219D000-0x00000000721A8000-memory.dmp
    Filesize

    44KB

  • memory/1404-58-0x0000000075451000-0x0000000075453000-memory.dmp
    Filesize

    8KB

  • memory/1404-59-0x000000007219D000-0x00000000721A8000-memory.dmp
    Filesize

    44KB

  • memory/1404-384-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1404-385-0x000000007219D000-0x00000000721A8000-memory.dmp
    Filesize

    44KB

  • memory/2016-223-0x0000000000000000-mapping.dmp