Windows 7 deprecation

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Analysis

  • max time kernel
    149s
  • max time network
    125s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    10/05/2024, 13:14

General

  • Target

    1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5.exe

  • Size

    176KB

  • MD5

    401e8a990286a11259321ecbf63b09bd

  • SHA1

    f8fc744fa28f1e35f138ac39f3ae3638635f7e4a

  • SHA256

    1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5

  • SHA512

    505bfa7147e982068ba29d91bcc8e00c5024bd48e801f93fa0860d849ab7a3a60da8b08ff4786e0099a2103b5f29dc57f4fcc06087be1cf6192998f29497a041

  • SSDEEP

    3072:CftffjmNzzQpgLQHVdLoSewS7fRlDvggtJ6xYlcv9Wielt5WWD/3FMo+S8ovOGaL:SVfjmNzzIB0ZqNv

Score
7/10

Malware Config

Signatures

  • Deletes itself 1 IoCs
  • Executes dropped EXE 2 IoCs
  • Loads dropped DLL 5 IoCs
  • Enumerates connected drives 3 TTPs 21 IoCs

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

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 4 IoCs
  • Runs net.exe
  • Suspicious behavior: EnumeratesProcesses 10 IoCs
  • Suspicious use of WriteProcessMemory 26 IoCs

Processes

  • C:\Windows\Explorer.EXE
    C:\Windows\Explorer.EXE
    1⤵
      PID:1192
      • C:\Users\Admin\AppData\Local\Temp\1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5.exe
        "C:\Users\Admin\AppData\Local\Temp\1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5.exe"
        2⤵
        • Drops file in Windows directory
        • Suspicious use of WriteProcessMemory
        PID:2868
        • C:\Windows\SysWOW64\cmd.exe
          cmd /c C:\Users\Admin\AppData\Local\Temp\$$a77BF.bat
          3⤵
          • Deletes itself
          • Loads dropped DLL
          • Suspicious use of WriteProcessMemory
          PID:3036
          • C:\Users\Admin\AppData\Local\Temp\1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5.exe
            "C:\Users\Admin\AppData\Local\Temp\1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5.exe"
            4⤵
            • Executes dropped EXE
            • Suspicious use of WriteProcessMemory
            PID:2416
            • C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
              dw20.exe -x -s 1084
              5⤵
              • Loads dropped DLL
              PID:328
        • C:\Windows\Logo1_.exe
          C:\Windows\Logo1_.exe
          3⤵
          • Executes dropped EXE
          • Enumerates connected drives
          • Drops file in Program Files directory
          • Drops file in Windows directory
          • Suspicious behavior: EnumeratesProcesses
          • Suspicious use of WriteProcessMemory
          PID:3016
          • C:\Windows\SysWOW64\net.exe
            net stop "Kingsoft AntiVirus Service"
            4⤵
            • Suspicious use of WriteProcessMemory
            PID:2660
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 stop "Kingsoft AntiVirus Service"
              5⤵
                PID:2588

      Network

      MITRE ATT&CK Enterprise v15

      Replay Monitor

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      Downloads

      • C:\Program Files (x86)\Google\Update\1.3.36.151\GoogleUpdateCore.exe

        Filesize

        251KB

        MD5

        33be0187f1e633adbe0c5ae9ad53c7a9

        SHA1

        fd306ea070094d58e75a29b6066d3f4ed84edf59

        SHA256

        ea29b7e76640bdb1fa6a67be00730246a1e9d8d7626c57555ecc1509ef669f5f

        SHA512

        ae2b8cb4c835657e3af39a46cbc5de310f498703c19c9dd925403a63c6e0351d54bfefe1da87de7d4bacbf49878986758c7b51b70c80b9832081af4a4844d515

      • C:\ProgramData\Package Cache\{ca67548a-5ebe-413a-b50c-4b9ceb6d66c6}\vcredist_x64.exe

        Filesize

        471KB

        MD5

        4cfdb20b04aa239d6f9e83084d5d0a77

        SHA1

        f22863e04cc1fd4435f785993ede165bd8245ac6

        SHA256

        30ed17ca6ae530e8bf002bcef6048f94dba4b3b10252308147031f5c86ace1b9

        SHA512

        35b4c2f68a7caa45f2bb14b168947e06831f358e191478a6659b49f30ca6f538dc910fe6067448d5d8af4cb8558825d70f94d4bd67709aee414b2be37d49be86

      • C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\Content\3C3948BE6E525B8A8CEE9FAC91C9E392_F83C7CE432EB2A0104CE0F63B9A54C4E

        Filesize

        5B

        MD5

        5bfa51f3a417b98e7443eca90fc94703

        SHA1

        8c015d80b8a23f780bdd215dc842b0f5551f63bd

        SHA256

        bebe2853a3485d1c2e5c5be4249183e0ddaff9f87de71652371700a89d937128

        SHA512

        4cd03686254bb28754cbaa635ae1264723e2be80ce1dd0f78d1ab7aee72232f5b285f79e488e9c5c49ff343015bd07bb8433d6cee08ae3cea8c317303e3ac399

      • C:\Users\Admin\AppData\Local\Temp\$$a77BF.bat

        Filesize

        722B

        MD5

        e09ce876deaee0d37999669916213461

        SHA1

        098e244ec3137cca65bf02ed581cb6c793ee5a22

        SHA256

        c9a5b83122ad2d61fa1869adbb1b79b4d2d404c12908506a8415c4f6042eb08c

        SHA512

        8bda44ca3e7aee42416ed07321dcc28b7e093ae4a720f7156ccfaaf3a4d8e298b8fbab91c2cb2a73aed59f594249d7ecd658fbccef21721d4b54de91570bebc8

      • C:\Users\Admin\AppData\Local\Temp\1abbb3947ae01ad0babb9ae82b5875f976c8df1da25d14838a31e285c0aa07f5.exe.exe

        Filesize

        149KB

        MD5

        ac103c73e45cbc6dd14e41e1e709def6

        SHA1

        e729ff31404ddaeb5ce6da5f0999626031f8738c

        SHA256

        2e71a66d3b9f0e520d344ee2f9500fa43598de6a1964facbc994f3b1b3a9af08

        SHA512

        4f7793d3eea2ccea2a2e41760b1202686c45c68cf5c93a65dd9b6638096eb8a8d1d05ea7ac394e1248241313105c58150dbb0058d4ce38ae49c4ec1a8a0ec868

      • C:\Windows\Logo1_.exe

        Filesize

        26KB

        MD5

        2d1828590bf5c5a319a997cb08b9bb77

        SHA1

        ba869be4bf8ed88f35a57796f51a8cad6460dcdf

        SHA256

        f18e2ef8f2c1a498f3f19f74b6e68b2c34fcb1c6ffc076374442ea99c975b259

        SHA512

        9cc414143383061bfd54dcc4675dc06976d0ea0411d8ade40dcc4c60ecddc75ca3e0fb68193bd88aba2010eda8e1dadd4f8f6208cfcdf2a5e5bdebbb435b9549

      • F:\$RECYCLE.BIN\S-1-5-21-330940541-141609230-1670313778-1000\_desktop.ini

        Filesize

        9B

        MD5

        4d28283e4d415600ffc2f8fda6d8c91e

        SHA1

        053dcb8d5d84b75459bc82d8740ee4684d680016

        SHA256

        b855effeaf01610130d3f38de35bc7f98bfc6643d98d4198af18534f048e8df7

        SHA512

        73a758cd5e5ac48d62dd89719be604214895e0cc9a10ff7464a6cf9161a37fd27d15dd2d2565f18198b381ac6442bcb36f38614df7b1176061a83616517a7edb

      • memory/1192-55-0x0000000002210000-0x0000000002211000-memory.dmp

        Filesize

        4KB

      • memory/2416-66-0x00000000747A0000-0x0000000074D4B000-memory.dmp

        Filesize

        5.7MB

      • memory/2416-30-0x00000000747A0000-0x0000000074D4B000-memory.dmp

        Filesize

        5.7MB

      • memory/2416-31-0x00000000747A0000-0x0000000074D4B000-memory.dmp

        Filesize

        5.7MB

      • memory/2416-29-0x00000000747A1000-0x00000000747A2000-memory.dmp

        Filesize

        4KB

      • memory/2868-0-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/2868-16-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-58-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-72-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-118-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-124-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-707-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-1877-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-65-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-3337-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB

      • memory/3016-18-0x0000000000400000-0x0000000000434000-memory.dmp

        Filesize

        208KB