Analysis

  • max time kernel
    840s
  • max time network
    842s
  • platform
    windows7_x64
  • resource
    win7-20240903-en
  • resource tags

    arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2024, 02:36

General

  • Target
    54ab323053f1138e5ccaa8f8afaa38cabca9491f.exe
  • Size 10KB
  • Sample241122-c3zrraspfs
  • SHA256 e9ffda70e3ab71ee9d165abec8f2c7c52a139b71666f209d2eaf0c704569d3b1
  • MD5 SHA1 SHA512 SSDEEP

Malware Config

Signatures

  • Renames multiple (900) files with added filename extension

    This suggests ransomware activity of encrypting all the files on the system.

  • Drops file in Drivers directory 1 IoCs
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in System32 directory 64 IoCs
  • Sets desktop wallpaper using registry 2 TTPs 1 IoCs
  • UPX packed file 4 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 64 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 3 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 8 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\54ab323053f1138e5ccaa8f8afaa38cabca9491f.exe
    "C:\Users\Admin\AppData\Local\Temp\54ab323053f1138e5ccaa8f8afaa38cabca9491f.exe"
    1⤵
    • Drops file in Drivers directory
    • Drops file in System32 directory
    • Sets desktop wallpaper using registry
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2012
    • C:\Windows\SysWOW64\NOTEPAD.EXE
      "C:\Windows\system32\NOTEPAD.EXE" C:\Users\Admin\Desktop\HOW TO DECRYPT FILES.txt
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of FindShellTrayWindow
      PID:1948
    • C:\Windows\SysWOW64\cmd.exe
      cmd /c ""C:\Users\Admin\AppData\Local\Temp\ntfs_system.bat" "
      2⤵
      • Deletes itself
      • System Location Discovery: System Language Discovery
      PID:3024

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        AddToViewArrow.jpg

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\AddToViewArrow.jpg
        • Size 2KB
        • SHA256 1295fcd13cd3fedf3f37f5b51c4556dd2742ec92bf756de6e9ae45758a0b28d3
        • MD5 SHA1 SHA512

        AddToViewArrowMask.bmp

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\AddToViewArrowMask.bmp
        • Size 2KB
        • SHA256 9f59ff35f89b7a280a65916dd202ec9df372b698a689522d4328e7ace19208fa
        • MD5 SHA1 SHA512

        FormToolImages.jpg

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\FormToolImages.jpg
        • Size 6KB
        • SHA256 685fcc3832f1c70008a11e0b295eac4a8610d588327e0c3e144727d3778899a5
        • MD5 SHA1 SHA512 SSDEEP

        ViewHeaderPreview.jpg

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms4\ViewHeaderPreview.jpg
        • Size 3KB
        • SHA256 060fab7d708ad3568115f021e86206cb9ddc26188482e4f1e28b499d48ee1660
        • MD5 SHA1 SHA512

        FormsViewAttachmentIcons.jpg

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\FormsViewAttachmentIcons.jpg
        • Size 5KB
        • SHA256 fd9b7a9e47b2e2dbbbec7c62e7fae290ffa1f1fb823b7dadb05274e36a317c91
        • MD5 SHA1 SHA512 SSDEEP

        FormsViewAttachmentIconsMask.bmp

        • Path C:\Program Files (x86)\Microsoft Office\Office14\Groove\ToolData\groove.net\GrooveForms5\FormsViewAttachmentIconsMask.bmp
        • Size 1KB
        • SHA256 ef18be5096a89ddc597e7251b0a40f4ed3102ebba838aab07af0655ad18d56b3
        • MD5 SHA1 SHA512

        asl-v20.txt

        • Path C:\Program Files\Java\jdk1.7.0_80\lib\missioncontrol\features\org.eclipse.ecf.filetransfer.httpclient4.ssl.feature_1.0.0.v20140827-1444\asl-v20.txt
        • Size 11KB
        • SHA256 a0d598d26b6592cf1f2e39d6274fee42e0c472d6ffae57459c621e4bee27cddf
        • MD5 SHA1 SHA512 SSDEEP

        THIRDPARTYLICENSEREADME-JAVAFX.txt

        • Path C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME-JAVAFX.txt
        • Size 109KB
        • SHA256 ad95bb4284b818b0c8630d2e4ac52ee719789afd4e159b2cac882706bea665dc
        • MD5 SHA1 SHA512 SSDEEP

        THIRDPARTYLICENSEREADME.txt

        • Path C:\Program Files\Java\jre7\THIRDPARTYLICENSEREADME.txt
        • Size 172KB
        • SHA256 c3fcb24d6ef994b87703c5993a1e39fa34ec999db658d9479185f1ae90254c13
        • MD5 SHA1 SHA512 SSDEEP

        ntfs_system.bat

        • Path C:\Users\Admin\AppData\Local\Temp\ntfs_system.bat
        • Size 92B
        • SHA256 002747d89fc8251c1bbcd1207163efcaa203a7feec1798fa7a8a453ce780f181
        • MD5 SHA1 SHA512

        HOW TO DECRYPT FILES.txt

        • Path C:\Users\Admin\Desktop\HOW TO DECRYPT FILES.txt
        • Size 1KB
        • SHA256 be1c4a9b520c2d1f408c46c99cf465fd561027c33b6d13f491bfe0e4afa12636
        • MD5 SHA1 SHA512

        Windows Explorer.lnk

        • Path C:\Users\Default\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Accessories\Windows Explorer.lnk
        • Size 1KB
        • SHA256 2812834914f63664e0849381a5d32e6b17a46d57294aed61d7ad55eb3350353c
        • MD5 SHA1 SHA512

        ASPdotNET_logo.jpg

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\ASPdotNET_logo.jpg
        • Size 21KB
        • SHA256 4482a4073699b029665660f35226e2929b1997203cb965e5332ab1a2cba0a250
        • MD5 SHA1 SHA512 SSDEEP

        darkBlue_GRAD.jpg

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\darkBlue_GRAD.jpg
        • Size 8KB
        • SHA256 e841276f10eea8b39fe22d4a6233fbc4dada0e601b9bf016506f9e7608f52177
        • MD5 SHA1 SHA512 SSDEEP

        help.jpg

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\help.jpg
        • Size 1KB
        • SHA256 1295dc0d54e8c0ce0231af11782a665a894b32259c7bc846763474cbaf6bb2fb
        • MD5 SHA1 SHA512

        security_watermark.jpg

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\security_watermark.jpg
        • Size 53B
        • SHA256 1748e668cb5ada5e6cd9d5fc65c1b3e0e618df143634a610a0d4a277323c4b77
        • MD5 SHA1 SHA512

        topGradRepeat.jpg

        • Path C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ASP.NETWebAdminFiles\Images\topGradRepeat.jpg
        • Size 8KB
        • SHA256 2516e4ef0dad07775128f80551676a32d04a1be0617a8dfc78360f4f78f0c79b
        • MD5 SHA1 SHA512 SSDEEP

        memory/2012-1729-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/2012-1730-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/2012-0-0x0000000000400000-0x0000000000413000-memory.dmp

        memory/2012-1740-0x0000000000400000-0x0000000000413000-memory.dmp