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Analysis

  • max time kernel
    120s
  • max time network
    16s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    03/09/2024, 20:05

General

  • Target

    24e16a2c305931b49153dc5d418c2bc0N.exe

  • Size

    2.5MB

  • MD5

    24e16a2c305931b49153dc5d418c2bc0

  • SHA1

    25680ed74739a088902d502789175b9516b968aa

  • SHA256

    a5e81fe157143ee1e807d13bd4cce2c7c7f9b2b9a340ce3fc7bf0ced66acf4a8

  • SHA512

    6aa5094619a804ef3bf22868ce67e37fccb245af0f07e7adf9366489f156282edcad09ea11cb70cc17b479fd0f67464f9a808a7a902c7d8e24613cdb4939d60f

  • SSDEEP

    49152:PxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxZ:Pxx9NUFkQx753uWuCyyxZ

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 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
  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

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

  • Scheduled Task/Job: Scheduled Task 1 TTPs 2 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 28 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\24e16a2c305931b49153dc5d418c2bc0N.exe
    "C:\Users\Admin\AppData\Local\Temp\24e16a2c305931b49153dc5d418c2bc0N.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
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2116
    • \??\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
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious behavior: GetForegroundWindowSpam
      • Suspicious use of SetWindowsHookEx
      • Suspicious use of WriteProcessMemory
      PID:2608
      • \??\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
        • System Location Discovery: System Language Discovery
        • Suspicious use of SetWindowsHookEx
        • Suspicious use of WriteProcessMemory
        PID:2808
        • \??\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
          • System Location Discovery: System Language Discovery
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious behavior: GetForegroundWindowSpam
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2944
          • \??\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
            • System Location Discovery: System Language Discovery
            • Suspicious use of SetWindowsHookEx
            PID:2692
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:07 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:2668
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 20:08 /f
            5⤵
            • System Location Discovery: System Language Discovery
            • Scheduled Task/Job: Scheduled Task
            PID:1288
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2704

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      2.5MB

      MD5

      c41ccbc4085904429eddf3520faaf562

      SHA1

      0c44ac78777b6e25a3ccdcadddcd4e8fe3546406

      SHA256

      9d21c6f7e162503b899b7be882e4642c487b34a5e13d88dcb66d16369523cc65

      SHA512

      880959b6c1a8950b2c73dfa81e6be203635c85c08197358dbcf34b4efcc95896842ba10e197e46110468682d4668beb9802ce185f6f5b080fd1240e4c7aa7f31

    • \Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      a576d41f7a393b5af8ffbd07124e7509

      SHA1

      a073bac837e1c58bf5d840c64f3a8faaf93ed79a

      SHA256

      f70fc477c630d6d195f8d374e1b509e94f662eed96d6623c85ce8ab542e8ef36

      SHA512

      e2d444031f05908367b12bb72e6a6a66ae31ca35e9d54807b4b55eff59d05d1b87724735bbeb8103e7704b345bc80a0d396a2abe09675ae36cd3bd3fc78d540c

    • \Windows\Resources\svchost.exe

      Filesize

      2.5MB

      MD5

      397f59f3ba4e01c4f962f7b6e445d25f

      SHA1

      d9c62f9bdaf2564e7ad34aa5672462e785dbc10e

      SHA256

      01b346f22a05e8435a3e5fe459bc754f1b6c17af10a0fe915c86793ec2417711

      SHA512

      848fc74f5be9ee66ec0c55f8d758a746ce82e6bef407eb49432a41931873b8438fa3c026c75c63183418216f1fe9de10c3b638c1e6ec27e1e8df3d964ef7ce50

    • memory/2116-52-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-0-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-1-0x0000000077450000-0x0000000077452000-memory.dmp

      Filesize

      8KB

    • memory/2116-42-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2116-44-0x00000000037D0000-0x0000000003DDE000-memory.dmp

      Filesize

      6.1MB

    • memory/2608-67-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2608-21-0x0000000003690000-0x0000000003C9E000-memory.dmp

      Filesize

      6.1MB

    • memory/2608-55-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2608-53-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2608-11-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2692-43-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2692-49-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2808-51-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2808-34-0x0000000003570000-0x0000000003B7E000-memory.dmp

      Filesize

      6.1MB

    • memory/2808-23-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2944-54-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2944-35-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2944-66-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2944-76-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB