Analysis

  • max time kernel
    124s
  • max time network
    123s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    09-06-2024 10:50

General

  • Target

    d68a95d3261a2cab1f4df507df39b6a7911c67cc0333362fff36f01c23a3e879.exe

  • Size

    2.5MB

  • MD5

    6d97ecda69a3b949d29fe88d2f31d95d

  • SHA1

    e6730ad822f7c91d3501a401aca1b1c323ca73cb

  • SHA256

    d68a95d3261a2cab1f4df507df39b6a7911c67cc0333362fff36f01c23a3e879

  • SHA512

    4ba4460b9d3a8e1e8575efcfc1921186894f793e307b3c4b9cfc5c83a291b8cdb982c28fab25240124ead5f74fcf71ffc5c8310fcd7bac573aa1314486b9be72

  • SSDEEP

    49152:MxmvumkQ9lY9sgUXdTPSxdQ8KX75IyuWuCjcCqWOyx5:Mxx9NUFkQx753uWuCyyx5

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\d68a95d3261a2cab1f4df507df39b6a7911c67cc0333362fff36f01c23a3e879.exe
    "C:\Users\Admin\AppData\Local\Temp\d68a95d3261a2cab1f4df507df39b6a7911c67cc0333362fff36f01c23a3e879.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:2860
    • \??\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:1996
      • \??\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:2572
        • \??\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:2476
          • \??\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:2640
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:52 /f
            5⤵
            • Creates scheduled task(s)
            PID:2448
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:53 /f
            5⤵
            • Creates scheduled task(s)
            PID:2900
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 10:54 /f
            5⤵
            • Creates scheduled task(s)
            PID:856
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2420

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

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

      Filesize

      2.5MB

      MD5

      5441d975397d436a0141b7c5eb77d53c

      SHA1

      bbff9a108ba557aa9c744952a1323c5946caaafe

      SHA256

      fa46ab633e4750127647414897f0bd06221fd96046492a24ae8e269705c902bb

      SHA512

      a26fac53c19491200b7d896580f166e084a89323967a4f6f4d89a5665c9b77737f04680be8e9f62dcd1106f500d7f20a974dea9eb332359ef7831cd83a44c55a

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.5MB

      MD5

      bdb049af53e374778511f7138abdb36e

      SHA1

      2f4882258edb7ec5781e85f163a8e9bc0cab2286

      SHA256

      f8a31ce10f0748c9aa031d0eed50437d26cd40dacb57d045487c1e82ff98506d

      SHA512

      cec53d225b6bc40d49de8c0e4f467820002b1128a89b655049559fa66611e62086357dcfacb59896bbfd83b7a0f130ec9605f860ff5311daf000218189c7a2d3

    • C:\Windows\Resources\svchost.exe

      Filesize

      2.5MB

      MD5

      7463708b2e1dee5374cbbe1fa79d6c0f

      SHA1

      925aec9adb6d8049d6b4afd589d314e08b3fc208

      SHA256

      a25f8b6475190e1818ebd5023f60bfd7d73394ca1376ce08f809596d081bf454

      SHA512

      c55921eabd0a4e5881114a131d1d111ad3163f16f8a96849f7fa02c32c6e8c56440aeedc479e68e4eff657b084661a9596cc6106fadc53dfba3c1ed200b3798b

    • memory/1996-54-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/1996-12-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/1996-22-0x00000000037B0000-0x0000000003DBE000-memory.dmp

      Filesize

      6.1MB

    • memory/1996-67-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/1996-56-0x00000000037B0000-0x0000000003DBE000-memory.dmp

      Filesize

      6.1MB

    • memory/2476-80-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2476-74-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2476-36-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2476-55-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2572-35-0x0000000003810000-0x0000000003E1E000-memory.dmp

      Filesize

      6.1MB

    • memory/2572-51-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2572-24-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2640-49-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2640-44-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2860-53-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2860-42-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2860-2-0x0000000000400000-0x0000000000A0E000-memory.dmp

      Filesize

      6.1MB

    • memory/2860-11-0x0000000003730000-0x0000000003D3E000-memory.dmp

      Filesize

      6.1MB

    • memory/2860-4-0x0000000077680000-0x0000000077682000-memory.dmp

      Filesize

      8KB