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Analysis

  • max time kernel
    150s
  • max time network
    119s
  • platform
    windows7_x64
  • resource
    win7-20231129-en
  • resource tags

    arch:x64arch:x86image:win7-20231129-enlocale:en-usos:windows7-x64system
  • submitted
    07/05/2024, 23:20

General

  • Target

    62e26a49937c7a6717961656a54477c0_NEIKI.exe

  • Size

    2.6MB

  • MD5

    62e26a49937c7a6717961656a54477c0

  • SHA1

    10aacec56172ab5814ae036958d65b23f0447591

  • SHA256

    7c7d15743143eeabf16fe8c34b2fc368ed5f48cb9bf0ef455876d78c862869e6

  • SHA512

    bedb187c6cb122bad355ed7a3e95e0db0d1cc4a1221bc5257439d6b22ab7a65aa9f2046bb8cc22fe0b63a6063a61459854adee75c30f62b3fb873bdcdf247977

  • SSDEEP

    49152:lS5IvAG44oOCdcSzNIJG70V6Do4yV/5mc5aNZJ350zg5bEJ60IZGnpw/Y0:lS5G4DOT5JGIVzh/5aZX0zgd0IZGpwx

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 21 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\62e26a49937c7a6717961656a54477c0_NEIKI.exe
    "C:\Users\Admin\AppData\Local\Temp\62e26a49937c7a6717961656a54477c0_NEIKI.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:624
    • \??\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:2192
      • \??\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:2260
        • \??\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:2664
          • \??\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:2708
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:23 /f
            5⤵
            • Creates scheduled task(s)
            PID:2616
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:24 /f
            5⤵
            • Creates scheduled task(s)
            PID:1964
          • C:\Windows\SysWOW64\schtasks.exe
            schtasks /create /tn "svchost" /tr "c:\windows\resources\svchost.exe" /sc daily /st 23:25 /f
            5⤵
            • Creates scheduled task(s)
            PID:684
      • C:\Windows\Explorer.exe
        C:\Windows\Explorer.exe
        3⤵
          PID:2636

    Network

    MITRE ATT&CK Enterprise v15

    Replay Monitor

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    Downloads

    • C:\Windows\Resources\spoolsv.exe

      Filesize

      2.6MB

      MD5

      265d693a9cb8d4ade648b1e96d6d9799

      SHA1

      35bce99a4f513b903d228bfc0f31ee67c2cca515

      SHA256

      26ed943028ec05c4b5a64746ba3861ae1a436066a2a25955ff1891cca61e3995

      SHA512

      43fe5d2d1e71381ab63bee40c6ae04082bbaff2c8be3632a2755426bbe2e7544766b9589f96983b639c12cb31a04a4edc7f98059296d81790c9970cc4194aea5

    • \Windows\Resources\Themes\explorer.exe

      Filesize

      2.6MB

      MD5

      21d076a7402be169b9e483c4b659a828

      SHA1

      eea1465b73d3fe4caf2e2417521b9b4eb4d5a027

      SHA256

      25dac9fbb7f96590b57278ee2428c8e30a7c29bd0ac651cef79b4b88bf802277

      SHA512

      4f53707d0d2ef640f7f06d9863524915eae0541d017a14687247624e36ccdc232c67e5d3a0926ba19aeefbee5436cfbf4936a90aa931d696b82ab8ed87aed2bd

    • \Windows\Resources\svchost.exe

      Filesize

      2.6MB

      MD5

      5b2548ca1affbe4b65c93cc225cbdd82

      SHA1

      ce419d5857b9c023afb7a0dbaaf62f2b10bc0b99

      SHA256

      33765c0a27d0700619f6df55d069b7be2abddc84fc85deffc6e8cfe8b0207d59

      SHA512

      abd494848b53c31e629080d0d712d7080498420333db2951148381c853f3202cdf56bb564058a98c8f3414f15304d061cafa1763160eff698c34afce8c43e27a

    • memory/624-3-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/624-11-0x0000000003820000-0x0000000003E33000-memory.dmp

      Filesize

      6.1MB

    • memory/624-56-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/624-47-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/624-0-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-24-0x00000000037D0000-0x0000000003DE3000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-13-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-81-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-75-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-69-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-60-0x00000000037D0000-0x0000000003DE3000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-12-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-58-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2192-57-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2260-54-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2260-26-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2260-37-0x0000000003530000-0x0000000003B43000-memory.dmp

      Filesize

      6.1MB

    • memory/2260-25-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2664-45-0x00000000033B0000-0x00000000039C3000-memory.dmp

      Filesize

      6.1MB

    • memory/2664-59-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2664-38-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2708-52-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB

    • memory/2708-46-0x0000000000400000-0x0000000000A13000-memory.dmp

      Filesize

      6.1MB