Analysis

  • max time kernel
    127s
  • max time network
    141s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20230621-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20230621-enlocale:en-usos:windows10-2004-x64system
  • submitted
    02/07/2023, 01:17

General

  • Target

    Kirsty/lib/Bunifu.UI.WinForms.BunifuSlider.xml

  • Size

    120KB

  • MD5

    b72191dc9a861ba7ebb04449c6375b16

  • SHA1

    2088c7172bfaca5400867a263670a7d8e287109a

  • SHA256

    7b37252a6698738dd352ad3f86d2eb2c9d89436942618df6a7f534c90071304b

  • SHA512

    ad1ebd49b0a6d743ecbae08bf496623c57a30a249a9c788c3bacf6edd3891f87878b11c8f5d15f95d61c83781da37b4e379aa1b0c62566851b22efbf55c11cb9

  • SSDEEP

    1536:En8G2uwrrpHUAYEXSctVS9vpFt4tTrkXwknKTfjVg812ly6YyvsqMizKN5H1629D:En8+CYMBa/scrC

Score
5/10

Malware Config

Signatures

  • Drops file in System32 directory 8 IoCs
  • Modifies Internet Explorer settings 1 TTPs 39 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of SetWindowsHookEx 6 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE
    "C:\Program Files\Microsoft Office\Root\VFS\ProgramFilesCommonX64\Microsoft Shared\Office16\MSOXMLED.EXE" /verb open "C:\Users\Admin\AppData\Local\Temp\Kirsty\lib\Bunifu.UI.WinForms.BunifuSlider.xml"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1060
    • C:\Program Files\Internet Explorer\iexplore.exe
      "C:\Program Files\Internet Explorer\iexplore.exe" C:\Users\Admin\AppData\Local\Temp\Kirsty\lib\Bunifu.UI.WinForms.BunifuSlider.xml
      2⤵
      • Modifies Internet Explorer settings
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:4516
      • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
        "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:4516 CREDAT:17410 /prefetch:2
        3⤵
        • Modifies Internet Explorer settings
        • Suspicious use of SetWindowsHookEx
        PID:1440
  • C:\Windows\System32\svchost.exe
    C:\Windows\System32\svchost.exe -k netsvcs -p
    1⤵
    • Drops file in System32 directory
    PID:4512

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Microsoft\Windows\INetCache\IE\DNCPX4JR\suggestions[1].en-US

          Filesize

          17KB

          MD5

          5a34cb996293fde2cb7a4ac89587393a

          SHA1

          3c96c993500690d1a77873cd62bc639b3a10653f

          SHA256

          c6a5377cbc07eece33790cfc70572e12c7a48ad8296be25c0cc805a1f384dbad

          SHA512

          e1b7d0107733f81937415104e70f68b1be6fd0ca65dccf4ff72637943d44278d3a77f704aedff59d2dbc0d56a609b2590c8ec0dd6bc48ab30f1dad0c07a0a3ee

        • memory/1060-133-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-134-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-135-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-136-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-137-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-138-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-139-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-140-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB

        • memory/1060-141-0x00007FFAC2F70000-0x00007FFAC2F80000-memory.dmp

          Filesize

          64KB