Analysis

  • max time kernel
    74s
  • max time network
    56s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    28-02-2024 10:53

General

  • Target

    WinaeroTweaker-1.62.1.0-setup.exe

  • Size

    5.7MB

  • MD5

    157e743031c4e6be81ab205ee109f944

  • SHA1

    06c39459502adf9ccab19111bef0877b6f21d670

  • SHA256

    6c1ec6433e1d991ec587ae14bd00d9c37ed8395896caa6ce19e1b48a12a50346

  • SHA512

    eaa9a078a093bc108b28c1469cf82a301b2ce0a5d66e293f89d94a12d1dab383d4b79e60a6a9514555a692e23ca4c99fa67885cac9f04c584c80b1bfd6cd6e35

  • SSDEEP

    98304:nkL+yAKH/+GFeGCYKtl/gOGhpslPXCuutHpKx8o3zEOqWAwPWBCBnQX5FHin1KTc:c+5KH/+Grg5gOEuO8x8wAOPAwEynMFaN

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 4 IoCs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Drops file in Program Files directory 21 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Kills process with taskkill 2 IoCs
  • Modifies Internet Explorer settings 1 TTPs 26 IoCs
  • Suspicious behavior: EnumeratesProcesses 12 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of FindShellTrayWindow 2 IoCs
  • Suspicious use of SetWindowsHookEx 4 IoCs
  • Suspicious use of WriteProcessMemory 41 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\WinaeroTweaker-1.62.1.0-setup.exe
    "C:\Users\Admin\AppData\Local\Temp\WinaeroTweaker-1.62.1.0-setup.exe"
    1⤵
    • Loads dropped DLL
    • Suspicious use of WriteProcessMemory
    PID:2208
    • C:\Users\Admin\AppData\Local\Temp\is-TC2IA.tmp\WinaeroTweaker-1.62.1.0-setup.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-TC2IA.tmp\WinaeroTweaker-1.62.1.0-setup.tmp" /SL5="$400E0,5091039,832000,C:\Users\Admin\AppData\Local\Temp\WinaeroTweaker-1.62.1.0-setup.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:2140
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im winaerotweaker.exe /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2312
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im winaerotweaker.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2684
      • C:\Windows\SysWOW64\cmd.exe
        "C:\Windows\System32\cmd.exe" /c taskkill /im winaerotweakerhelper.exe /f
        3⤵
        • Suspicious use of WriteProcessMemory
        PID:2592
        • C:\Windows\SysWOW64\taskkill.exe
          taskkill /im winaerotweakerhelper.exe /f
          4⤵
          • Kills process with taskkill
          • Suspicious use of AdjustPrivilegeToken
          PID:2668
      • C:\Program Files\Winaero Tweaker\WinaeroTweaker.exe
        "C:\Program Files\Winaero Tweaker\WinaeroTweaker.exe"
        3⤵
        • Executes dropped EXE
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • Suspicious use of WriteProcessMemory
        PID:564
        • C:\Windows\system32\WerFault.exe
          C:\Windows\system32\WerFault.exe -u -p 564 -s 776
          4⤵
            PID:2284
        • C:\Program Files\Internet Explorer\iexplore.exe
          "C:\Program Files\Internet Explorer\iexplore.exe" https://winaero.com/?utm_source=software&utm_medium=in-app&utm_campaign=winaerotweaker&utm_content=setupcheckbox
          3⤵
          • Modifies Internet Explorer settings
          • Suspicious use of FindShellTrayWindow
          • Suspicious use of SetWindowsHookEx
          • Suspicious use of WriteProcessMemory
          PID:2488
          • C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE
            "C:\Program Files (x86)\Internet Explorer\IEXPLORE.EXE" SCODEF:2488 CREDAT:275457 /prefetch:2
            4⤵
            • Modifies Internet Explorer settings
            • Suspicious use of SetWindowsHookEx
            PID:2988
    • C:\Program Files\Winaero Tweaker\WinaeroTweaker.exe
      "C:\Program Files\Winaero Tweaker\WinaeroTweaker.exe"
      1⤵
      • Executes dropped EXE
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      • Suspicious use of WriteProcessMemory
      PID:2152
      • C:\Windows\system32\WerFault.exe
        C:\Windows\system32\WerFault.exe -u -p 2152 -s 764
        2⤵
          PID:1412

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files\Winaero Tweaker\WinaeroControls.dll

        Filesize

        428KB

        MD5

        e3053e6ca40b44d5937a5b6ca1de7fa1

        SHA1

        f0cd747c34834a82ad1a1860b41a53a0981e91ef

        SHA256

        aa1e84244d46228f198cf3e1373658032c2f4d01c25db1c4966ffb87eb9bdc8b

        SHA512

        c8176b29016d244c0760222a4f42dc3a05a189a8c139061db08e8aae6639734b7198f79514586fadea21616781975002bac9a6acd3b96167317045d9f81be265

      • C:\Program Files\Winaero Tweaker\WinaeroTweaker.exe

        Filesize

        2.8MB

        MD5

        5d30d927ca6d0a372295c8548e52a98b

        SHA1

        1f7ccf0c875378d14b73208f159b555c4bd21a46

        SHA256

        a9d56ecd77a27217a2daec3ef3730022ed8c329815bd340e59b73c32d4d22e3a

        SHA512

        74e3e0905e0eb638b939879c3bf4b1fe4a042337999d61d6be9b71290f65f964639a4c1fdd6fdc9d32d04958b808bc1991b875bcae810de1c6dde3b1497c58b6

      • \Program Files\Winaero Tweaker\WinaeroTweaker.exe

        Filesize

        5.1MB

        MD5

        bd58a64a60d76cc1cfa38fd1c27419f5

        SHA1

        db1f416b55131682547f007351ad859edc5468c2

        SHA256

        69ecfd7ad61617a769d230d6d6db082d965c5550f92c4913cd60ef47d3158d38

        SHA512

        ab11ffbf0b2d39a2255357dd22489610cf6ee1f2316f6028d7120454e31ffc9c0ea794be9d134afe7fea91606f38c14bbfcf19de0bd7d085f02964d1c3ecf32b

      • \Users\Admin\AppData\Local\Temp\is-ANSB5.tmp\_isetup\_iscrypt.dll

        Filesize

        2KB

        MD5

        a69559718ab506675e907fe49deb71e9

        SHA1

        bc8f404ffdb1960b50c12ff9413c893b56f2e36f

        SHA256

        2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

        SHA512

        e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

      • \Users\Admin\AppData\Local\Temp\is-TC2IA.tmp\WinaeroTweaker-1.62.1.0-setup.tmp

        Filesize

        3.0MB

        MD5

        7ce94ddf4648f1d972c77764e24b527f

        SHA1

        a061a2bac5fdc29d03db7cef56b1e242f54b5b8b

        SHA256

        5f252a8d3629e51f265de8002be947a24a78b101330a71b4b01afbe59edd716d

        SHA512

        b15d4ff889bae492f3418c0d9ca0c1bbe89a3ffb95309924735873c166b937bba6da28dca451fb408204ab2704416ac0733547e8717b81e1d2a0fba0c116c47a

      • memory/564-71-0x000007FEF4760000-0x000007FEF514C000-memory.dmp

        Filesize

        9.9MB

      • memory/564-87-0x000007FEF4760000-0x000007FEF514C000-memory.dmp

        Filesize

        9.9MB

      • memory/564-76-0x0000000000260000-0x0000000000266000-memory.dmp

        Filesize

        24KB

      • memory/564-75-0x0000000000280000-0x00000000002F0000-memory.dmp

        Filesize

        448KB

      • memory/564-73-0x000000001B480000-0x000000001B500000-memory.dmp

        Filesize

        512KB

      • memory/564-72-0x000000001B5E0000-0x000000001B810000-memory.dmp

        Filesize

        2.2MB

      • memory/564-66-0x0000000001270000-0x0000000001796000-memory.dmp

        Filesize

        5.1MB

      • memory/2140-15-0x0000000000400000-0x0000000000713000-memory.dmp

        Filesize

        3.1MB

      • memory/2140-69-0x0000000000400000-0x0000000000713000-memory.dmp

        Filesize

        3.1MB

      • memory/2140-61-0x0000000000400000-0x0000000000713000-memory.dmp

        Filesize

        3.1MB

      • memory/2140-18-0x0000000000400000-0x0000000000713000-memory.dmp

        Filesize

        3.1MB

      • memory/2140-16-0x0000000000240000-0x0000000000241000-memory.dmp

        Filesize

        4KB

      • memory/2140-13-0x0000000000400000-0x0000000000713000-memory.dmp

        Filesize

        3.1MB

      • memory/2140-7-0x0000000000240000-0x0000000000241000-memory.dmp

        Filesize

        4KB

      • memory/2152-89-0x000007FEF3D70000-0x000007FEF475C000-memory.dmp

        Filesize

        9.9MB

      • memory/2152-90-0x00000000002E0000-0x0000000000350000-memory.dmp

        Filesize

        448KB

      • memory/2208-70-0x0000000000400000-0x00000000004D8000-memory.dmp

        Filesize

        864KB

      • memory/2208-0-0x0000000000400000-0x00000000004D8000-memory.dmp

        Filesize

        864KB

      • memory/2208-12-0x0000000000400000-0x00000000004D8000-memory.dmp

        Filesize

        864KB