Analysis

  • max time kernel
    125s
  • max time network
    44s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    29-11-2022 08:44

General

  • Target

    6278e9809353e83e2d9f35aabf00862ae4f13e9a6c73e11874cd12e78b23274f.xls

  • Size

    110KB

  • MD5

    1349495a04d9fe9b8dfce8fd2f924bfc

  • SHA1

    dae0b6a868b84e2f4aeeb53e806af16238fc93c4

  • SHA256

    6278e9809353e83e2d9f35aabf00862ae4f13e9a6c73e11874cd12e78b23274f

  • SHA512

    2284a27e9eff295c326b7f6cc9d9812447591986a21190ef655f6ec44af1d9009de38cb4df9f1745fa4d6096a935ae9647cb1b3534260b11f5f9629d4735ad83

  • SSDEEP

    1536:qCCCoMnZj/XGmR2Cd9EG+3g/dZ95uZZBez5WVbrek6KYQ7ITkiD2wxDp/WwF1p73:3OZoWVbreXpQ7ITkDwldkl5k5n

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 7 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\6278e9809353e83e2d9f35aabf00862ae4f13e9a6c73e11874cd12e78b23274f.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:1388
    • 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:1172
      • C:\Windows\SysWOW64\attrib.exe
        attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
        3⤵
        • Views/modifies file attributes
        PID:1184
    • 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:1732
    • 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:1772
    • C:\Windows\SysWOW64\wscript.exe
      "C:\Windows\System32\wscript.exe" E:\KK\6278e9809353e83e2d9f35aabf00862ae4f13e9a6c73e11874cd12e78b23274f_Search.vbs
      2⤵
      • Process spawned unexpected child process
      PID:1860

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/1172-220-0x0000000000000000-mapping.dmp
  • memory/1184-223-0x0000000000000000-mapping.dmp
  • memory/1388-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1388-57-0x000000007291D000-0x0000000072928000-memory.dmp
    Filesize

    44KB

  • memory/1388-58-0x000000007291D000-0x0000000072928000-memory.dmp
    Filesize

    44KB

  • memory/1388-59-0x00000000768A1000-0x00000000768A3000-memory.dmp
    Filesize

    8KB

  • memory/1388-55-0x0000000071931000-0x0000000071933000-memory.dmp
    Filesize

    8KB

  • memory/1388-54-0x000000002F681000-0x000000002F684000-memory.dmp
    Filesize

    12KB

  • memory/1388-429-0x000000005FFF0000-0x0000000060000000-memory.dmp
    Filesize

    64KB

  • memory/1388-430-0x000000007291D000-0x0000000072928000-memory.dmp
    Filesize

    44KB

  • memory/1732-221-0x0000000000000000-mapping.dmp
  • memory/1772-222-0x0000000000000000-mapping.dmp
  • memory/1860-312-0x0000000000000000-mapping.dmp