Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-06-2024 10:33

General

  • Target

    d24b9025d64bf2f3e09fee7c6c7382ad059b4606ea95ea9d1129ffe3d53cf5d4.exe

  • Size

    2.5MB

  • MD5

    967ee7ca70ab69ad8297824f19d0cebc

  • SHA1

    90bbc5a1172d2b549aa643711fc05b6b30777388

  • SHA256

    d24b9025d64bf2f3e09fee7c6c7382ad059b4606ea95ea9d1129ffe3d53cf5d4

  • SHA512

    3fadbd065a47de14e228a0e3b76d3265dcddcfab4b4e14adffea02387be313aecc22891d432e74334cca4d892ab1467964980d246655babcdfb92efd22573999

  • SSDEEP

    49152:MxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxH:Mxx9NUFkQx753uWuCyyxH

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects executables packed with Themida 18 IoCs
  • Identifies VirtualBox via ACPI registry values (likely anti-VM) 2 TTPs 5 IoCs
  • Checks BIOS information in registry 2 TTPs 10 IoCs

    BIOS information is often read in order to detect sandboxing environments.

  • Executes dropped EXE 4 IoCs
  • Loads dropped DLL 4 IoCs
  • Themida packer 18 IoCs

    Detects Themida, an advanced Windows software protection system.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Checks whether UAC is enabled 1 TTPs 5 IoCs
  • Drops file in System32 directory 2 IoCs
  • Suspicious use of NtSetInformationThreadHideFromDebugger 5 IoCs
  • Drops file in Windows directory 4 IoCs
  • Creates scheduled task(s) 1 TTPs 3 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 2 IoCs
  • Suspicious use of SetWindowsHookEx 10 IoCs
  • Suspicious use of WriteProcessMemory 32 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d24b9025d64bf2f3e09fee7c6c7382ad059b4606ea95ea9d1129ffe3d53cf5d4.exe
    "C:\Users\Admin\AppData\Local\Temp\d24b9025d64bf2f3e09fee7c6c7382ad059b4606ea95ea9d1129ffe3d53cf5d4.exe"
    1⤵
    • Identifies VirtualBox via ACPI registry values (likely anti-VM)
    • Checks BIOS information in registry
    • Loads dropped DLL
    • Checks whether UAC is enabled
    • Suspicious use of NtSetInformationThreadHideFromDebugger
    • Drops file in Windows directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2744
    • \??\c:\windows\resources\themes\explorer.exe
      c:\windows\resources\themes\explorer.exe
      2⤵
      • Modifies visiblity of hidden/system files in Explorer
      • Identifies VirtualBox via ACPI registry values (likely anti-VM)
      • Checks BIOS information in registry
      • Executes dropped EXE
      • Loads dropped DLL
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Suspicious use of NtSetInformationThreadHideFromDebugger
      • Drops file in Windows directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2844
      • \??\c:\windows\resources\spoolsv.exe
        c:\windows\resources\spoolsv.exe SE
        3⤵
        • Identifies VirtualBox via ACPI registry values (likely anti-VM)
        • Checks BIOS information in registry
        • Executes dropped EXE
        • Loads dropped DLL
        • Checks whether UAC is enabled
        • Suspicious use of NtSetInformationThreadHideFromDebugger
        • Drops file in Windows directory
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2660
        • \??\c:\windows\resources\svchost.exe
          c:\windows\resources\svchost.exe
          4⤵
          • Modifies visiblity of hidden/system files in Explorer
          • Identifies VirtualBox via ACPI registry values (likely anti-VM)
          • Checks BIOS information in registry
          • Executes dropped EXE
          • Loads dropped DLL
          • Adds Run key to start application
          • Checks whether UAC is enabled
          • Drops file in System32 directory
          • Suspicious use of NtSetInformationThreadHideFromDebugger
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2616
          • \??\c:\windows\resources\spoolsv.exe
            c:\windows\resources\spoolsv.exe PR
            5⤵
            • Identifies VirtualBox via ACPI registry values (likely anti-VM)
            • Checks BIOS information in registry
            • Executes dropped EXE
            • Checks whether UAC is enabled
            • Suspicious use of NtSetInformationThreadHideFromDebugger
            • Suspicious use of SetWindowsHookEx
            PID:2672
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:37 /f
            5⤵
            • Creates scheduled task(s)
            PID:3012
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:38 /f
            5⤵
            • Creates scheduled task(s)
            PID:2156
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:39 /f
            5⤵
            • Creates scheduled task(s)
            PID:944
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2424

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Resources\Themes\explorer.exe

      Filesize

      2.5MB

      MD5

      c28d97f63f8681abe02a7baa90025174

      SHA1

      eeac8135e6d4173dcc4bfd8836e286d9471770f7

      SHA256

      ec6a6d0d42108c88c60c2b6ec7c1d501bb4ac80daa9bf98902475e85fb015344

      SHA512

      8b117487eb5d375bcc0c92c446d7ce9480f397fbb9821822ff1e469b4df398b6dfe3742e0607d698c1c10f0792171b17a98866de34629e3d5d6fd588dfff05b3

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      6582fc098959c89616a9b041ea9b5785

      SHA1

      32a9e396a614601dc81027c6722ff65c75b4f285

      SHA256

      c3b4f52272c6743a00b9d0407b9dd9bc95da9d00c01b458428c2c296122dad24

      SHA512

      ec68ce0bdd42b61e71514bb54c1b5a6bed1f2d09bc6967a211860a0c1abf20ecca297a6792d9f78322f608cfd4a5b5935ddd3d45da11b9758651ad0aa38c6044

    • \Windows\Resources\svchost.exe

      Filesize

      2.5MB

      MD5

      1ce15cb36ce125af97710500dbbc0a6e

      SHA1

      166af55740eb98728f61b0304f82f497ddc1de15

      SHA256

      bfed5f932c17308da5670096a1c56edcf44bff3e884e435d932a96aa81c855cb

      SHA512

      033a6efb1f5e680f5c1a4853e481a908a4450a1589e02c20535eac39488ceb66983e8ba69ada6fb552a684e197b58fde82a8bde2ab7182b381cc60bd792662d0

    • memory/2616-77-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2616-59-0x0000000003390000-0x000000000399E000-memory.dmp

      Filesize

      6.1MB

    • memory/2616-55-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2616-43-0x0000000003390000-0x000000000399E000-memory.dmp

      Filesize

      6.1MB

    • memory/2616-35-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2660-36-0x00000000033B0000-0x00000000039BE000-memory.dmp

      Filesize

      6.1MB

    • memory/2660-24-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2660-51-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2672-44-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2672-49-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2744-11-0x0000000003280000-0x000000000388E000-memory.dmp

      Filesize

      6.1MB

    • memory/2744-0-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2744-53-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2744-1-0x0000000077830000-0x0000000077832000-memory.dmp

      Filesize

      8KB

    • memory/2844-23-0x0000000003340000-0x000000000394E000-memory.dmp

      Filesize

      6.1MB

    • memory/2844-56-0x0000000003340000-0x000000000394E000-memory.dmp

      Filesize

      6.1MB

    • memory/2844-12-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2844-62-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2844-68-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2844-54-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB