Analysis

  • max time kernel
    150s
  • max time network
    120s
  • platform
    windows7_x64
  • resource
    win7-20240508-en
  • resource tags

    arch:x64arch:x86image:win7-20240508-enlocale:en-usos:windows7-x64system
  • submitted
    10-06-2024 23:54

General

  • Target

    7dab476be2380a0836602d2fab4c22ed7a79f2cdb8339b0a5f518dd464915082.exe

  • Size

    2.5MB

  • MD5

    b3853be45e0b9a932cfbd7e560a8480d

  • SHA1

    e34f75fc6b7f6f8978e814d123fadc6ea01b38cc

  • SHA256

    7dab476be2380a0836602d2fab4c22ed7a79f2cdb8339b0a5f518dd464915082

  • SHA512

    f476081140204c578f18bb4fb22c490bb8e4518d9b7f23523dd7a08f31e9b8e904f28d12f0ddabe20209453a4b0c563a17853c416a580617492ec0f60ab080d1

  • SSDEEP

    49152:hxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyxc:hxx9NUFkQx753uWuCyyxc

Malware Config

Signatures

  • Modifies visiblity of hidden/system files in Explorer 2 TTPs 2 IoCs
  • Detects executables packed with Themida 16 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 16 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\7dab476be2380a0836602d2fab4c22ed7a79f2cdb8339b0a5f518dd464915082.exe
    "C:\Users\Admin\AppData\Local\Temp\7dab476be2380a0836602d2fab4c22ed7a79f2cdb8339b0a5f518dd464915082.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:2236
    • \??\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:2088
      • \??\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:2592
        • \??\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:2700
          • \??\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:2848
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:56 /f
            5⤵
            • Creates scheduled task(s)
            PID:2744
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:57 /f
            5⤵
            • Creates scheduled task(s)
            PID:2408
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:58 /f
            5⤵
            • Creates scheduled task(s)
            PID:596
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2524

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Resources\spoolsv.exe
      Filesize

      2.5MB

      MD5

      2f3f603ad1b39b138e0deee6c56e83b0

      SHA1

      459e3b3a0a0655935248a1039225a1b4b4ac52d8

      SHA256

      1293534e5cb40fbe201aa23b860828789283642d1ff4a77c087e23fc66e8126c

      SHA512

      59f55f6695513d9988531db5b96b32549c111cb8776cce04a86c361a067db2944280b98c1ed4c634fe99e71604717c9f3301cf5b51488d9a8ac6b150cf4a3d96

    • C:\Windows\Resources\svchost.exe
      Filesize

      2.5MB

      MD5

      9a8706741ccc1eb16d89b48aaf1714d2

      SHA1

      92bfdb8054785a88699ba3ffa73324604e39dba9

      SHA256

      920aeac1e609801b18ea38dfc53f3306dc5bb7eda08c454690104b857c6c7ba9

      SHA512

      0d1ce1a9cf814083fa19771ae321378410698b8de449db39c074d4a156fb2b7839b3ddbad0668f6be3754db068162294346f8bd1b7cf261181419a72918ba6f1

    • \Windows\Resources\Themes\explorer.exe
      Filesize

      2.5MB

      MD5

      85ac25006933943b3492b96e17932dc6

      SHA1

      1c1b823a387b748da0d6d350900bc4926acdbc7d

      SHA256

      18345dd1c000fec71dd870c58e8e80bb7a348430d477bc0ca0adc2d467d83516

      SHA512

      6efa200f820261cf04801895f372a2b33be249e77ff19c451176ee13567c8178654a63a7502bfb6d92cabcc449e6ec755b9bb47aaf1a5f1b5ab674b5a2a15915

    • memory/2088-53-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2088-12-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2088-75-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2088-23-0x0000000003670000-0x0000000003C7E000-memory.dmp
      Filesize

      6.1MB

    • memory/2088-69-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2088-63-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2236-52-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2236-0-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2236-1-0x0000000077240000-0x0000000077242000-memory.dmp
      Filesize

      8KB

    • memory/2236-11-0x0000000003850000-0x0000000003E5E000-memory.dmp
      Filesize

      6.1MB

    • memory/2592-50-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2592-24-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2700-42-0x00000000032B0000-0x00000000038BE000-memory.dmp
      Filesize

      6.1MB

    • memory/2700-35-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2700-54-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2848-43-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB

    • memory/2848-49-0x0000000000400000-0x0000000000A0E000-memory.dmp
      Filesize

      6.1MB