Analysis

  • max time kernel
    127s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    27-11-2022 02:54

General

  • Target

    2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37.xls

  • Size

    85KB

  • MD5

    0cfaffe08c2fc01f2bb2178caf3828b8

  • SHA1

    07960d0c76ab39a7b22f845c23525815790f2195

  • SHA256

    2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37

  • SHA512

    73cd2286b8b9eb1191006e5c897e8f454227d58c856a4a93263d1402598d2871a15e7b1e9d2ac2c7d1cd01b55b4b4e4fec017565015066242cd37960b3a88b5b

  • SSDEEP

    1536:mOOOO67DSy1NO2lXbjSytC2BhYS6Drm1gxv7yZmspH7+cclKiEZClsPI4ukoRWGx:0m1gxv7yZmspH7+cclKisPI4ukoRWGNf

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 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\2d92be34a9f762b696690bccb2141ca691ab71bce2bedfaf102b5a9bb3f3df37.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:956
    • C:\Windows\splwow64.exe
      C:\Windows\splwow64.exe 12288
      2⤵
        PID:612
      • 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:1680
        • C:\Windows\SysWOW64\attrib.exe
          attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
          3⤵
          • Views/modifies file attributes
          PID:1520
      • 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:836
      • 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:732

    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/612-59-0x0000000000000000-mapping.dmp
    • memory/612-60-0x000007FEFB9E1000-0x000007FEFB9E3000-memory.dmp
      Filesize

      8KB

    • memory/732-179-0x0000000000000000-mapping.dmp
    • memory/836-178-0x0000000000000000-mapping.dmp
    • memory/956-65-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-55-0x00000000711D1000-0x00000000711D3000-memory.dmp
      Filesize

      8KB

    • memory/956-57-0x00000000721BD000-0x00000000721C8000-memory.dmp
      Filesize

      44KB

    • memory/956-61-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-62-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-63-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-64-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-66-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-54-0x000000002F6D1000-0x000000002F6D4000-memory.dmp
      Filesize

      12KB

    • memory/956-189-0x00000000721BD000-0x00000000721C8000-memory.dmp
      Filesize

      44KB

    • memory/956-56-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/956-58-0x0000000075B61000-0x0000000075B63000-memory.dmp
      Filesize

      8KB

    • memory/956-188-0x000000005FFF0000-0x0000000060000000-memory.dmp
      Filesize

      64KB

    • memory/956-181-0x00000000721BD000-0x00000000721C8000-memory.dmp
      Filesize

      44KB

    • memory/956-182-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-184-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-183-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-185-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-187-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/956-186-0x000000000062B000-0x0000000000630000-memory.dmp
      Filesize

      20KB

    • memory/1520-180-0x0000000000000000-mapping.dmp
    • memory/1680-177-0x0000000000000000-mapping.dmp