Analysis

  • max time kernel
    150s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20231215-en
  • resource tags

    arch:x64arch:x86image:win7-20231215-enlocale:en-usos:windows7-x64system
  • submitted
    02/02/2024, 22:33

General

  • Target

    8ab40474d3eaafcf734e9528c5dd61a9.exe

  • Size

    7.0MB

  • MD5

    8ab40474d3eaafcf734e9528c5dd61a9

  • SHA1

    d07bf98a988d7a9a9938d1a86b17000c6fdf465b

  • SHA256

    2ba0c79ae23070dbc2e0c54184d76aab5dae7707fbb1920aaca0357225f07001

  • SHA512

    3c791c27468ee4357775a17c69bbbefa94a044f05d29cbebe33a76eafe90661e3f942e3741e34158d4ac457d9653ff317acd0a1fc87f5c395743850768f731d5

  • SSDEEP

    196608:N7effIPEsy58doQaTxLhQyZbIly38doQalArdfehQM9rdQyZb9eMf1WIEly38doi:N7effIPEsy58doQaTxLhQyZbIly38doY

Malware Config

Signatures

  • Modifies WinLogon for persistence 2 TTPs 2 IoCs
  • Drops file in Drivers directory 2 IoCs
  • Sets service image path in registry 2 TTPs 1 IoCs
  • ACProtect 1.3x - 1.4x DLL software 3 IoCs

    Detects file using ACProtect software.

  • Loads dropped DLL 1 IoCs
  • UPX packed file 3 IoCs

    Detects executables packed with UPX/modified UPX open source packer.

  • Adds Run key to start application 2 TTPs 4 IoCs
  • Enumerates connected drives 3 TTPs 64 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • Installs/modifies Browser Helper Object 2 TTPs 4 IoCs

    BHOs are DLL modules which act as plugins for Internet Explorer.

  • Modifies WinLogon 2 TTPs 1 IoCs
  • Drops file in System32 directory 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 16 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
    "C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe"
    1⤵
    • Modifies WinLogon for persistence
    • Drops file in Drivers directory
    • Sets service image path in registry
    • Loads dropped DLL
    • Adds Run key to start application
    • Enumerates connected drives
    • Modifies WinLogon
    • Drops file in System32 directory
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2128
    • C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
      C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of WriteProcessMemory
      PID:2480
      • C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
        C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
        3⤵
        • Enumerates connected drives
        • Suspicious behavior: EnumeratesProcesses
        PID:1036
    • C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
      C:\Users\Admin\AppData\Local\Temp\8ab40474d3eaafcf734e9528c5dd61a9.exe
      2⤵
      • Enumerates connected drives
      • Suspicious behavior: EnumeratesProcesses
      PID:2692
    • C:\Windows\SysWOW64\reg.exe
      reg delete "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Browser Helper Objects" /f
      2⤵
      • Installs/modifies Browser Helper Object
      PID:2828

Network

        MITRE ATT&CK Enterprise v15

        Replay Monitor

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        Downloads

        • C:\Users\Admin\AppData\Local\Temp\Cab1D24.tmp

          Filesize

          65KB

          MD5

          ac05d27423a85adc1622c714f2cb6184

          SHA1

          b0fe2b1abddb97837ea0195be70ab2ff14d43198

          SHA256

          c6456e12e5e53287a547af4103e0397cb9697e466cf75844312dc296d43d144d

          SHA512

          6d0ef9050e41fbae680e0e59dd0f90b6ac7fea5579ef5708b69d5da33a0ece7e8b16574b58b17b64a34cc34a4ffc22b4a62c1ece61f36c4a11a0665e0536b90d

        • C:\Users\Admin\AppData\Local\Temp\Tar1D36.tmp

          Filesize

          171KB

          MD5

          9c0c641c06238516f27941aa1166d427

          SHA1

          64cd549fb8cf014fcd9312aa7a5b023847b6c977

          SHA256

          4276af3669a141a59388bc56a87f6614d9a9bdddf560636c264219a7eb11256f

          SHA512

          936ed0c0b0a7ff8e606b1cc4175a1f9b3699748ccbba1c3aff96203033d2e9edabf090e5148370df42fbfc4e31d7229493706ff24f19ff42ff7bef74a6baad06

        • C:\Users\Admin\AppData\Local\cftmon.exe

          Filesize

          7.1MB

          MD5

          9a8f04813d35f01b5e692e21e81a3fc8

          SHA1

          1cfa6149cc42437e5a4780aa8e228b2dd362ed03

          SHA256

          ba83f633f5b17c7a19cea30b1325ad7a64fc0285d6274cd0fb00113fe1bdf711

          SHA512

          291c070d23998fb845f3c10e1ea7f9d39c2198f6514b45f5b993fbc3e0db555295331ac2c96dcfd0c6cc3c5160384a4ee981bc035d4bc124448fdd93351f6e42

        • \Windows\SysWOW64\ftpdll.dll

          Filesize

          5KB

          MD5

          d807aa04480d1d149f7a4cac22984188

          SHA1

          ffd5be65fd10017e34c11cecd105ebf4aa6c0cd9

          SHA256

          eddf092d901afe128322910c3ff41a3f242d33d6b4cdf91ece327076b324ccbb

          SHA512

          875543583c20ab164f37a4fb2587d234ce0a15d649d22b0d1dae5933f0a7683db170578746ea4458c51fec26e2243c6ec00dc10db8d4289789e50d5800cf863e

        • memory/1036-55-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/1036-3-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2128-39-0x0000000010000000-0x000000001010B000-memory.dmp

          Filesize

          1.0MB

        • memory/2128-2-0x00000000021F0000-0x0000000002213000-memory.dmp

          Filesize

          140KB

        • memory/2128-0-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2128-51-0x00000000021F0000-0x0000000002213000-memory.dmp

          Filesize

          140KB

        • memory/2128-50-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2128-49-0x0000000010000000-0x000000001010B000-memory.dmp

          Filesize

          1.0MB

        • memory/2480-52-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2480-54-0x00000000002B0000-0x00000000002D3000-memory.dmp

          Filesize

          140KB

        • memory/2480-1-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB

        • memory/2692-53-0x0000000000400000-0x0000000000423000-memory.dmp

          Filesize

          140KB