Analysis

  • max time kernel
    28s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:11

General

  • Target

    d2a3d9c1d4ab18e98681e280fac4b7c19609a4aba224302c6cf481310cd22100.exe

  • Size

    602KB

  • MD5

    598a147ec30d6353d961851e166fedfa

  • SHA1

    b5bdfbd1e76c44d80a2a188b9d6c1c52c423a8ea

  • SHA256

    d2a3d9c1d4ab18e98681e280fac4b7c19609a4aba224302c6cf481310cd22100

  • SHA512

    60f2b9976d7a0ce663266c560cfb6a1e677a8232e763905dcf8318874e19addc1a45688dd66e5778eab1a5c2f1b5899824fde21f391d2611066bb732ada768d3

  • SSDEEP

    12288:7Iny5DYTZI4m/if6rJg/zutRNj3lWNeDNWhAbXxGOwJ5xW2c2s:DUTZfm/iEAuRNj3lEepFMJm2Ps

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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 System32 directory 5 IoCs
  • Drops file in Program Files directory 3 IoCs
  • Enumerates physical storage devices 1 TTPs

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

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\d2a3d9c1d4ab18e98681e280fac4b7c19609a4aba224302c6cf481310cd22100.exe
    "C:\Users\Admin\AppData\Local\Temp\d2a3d9c1d4ab18e98681e280fac4b7c19609a4aba224302c6cf481310cd22100.exe"
    1⤵
    • Drops file in Drivers directory
    • Loads dropped DLL
    • Drops file in System32 directory
    • Drops file in Program Files directory
    • Suspicious use of WriteProcessMemory
    PID:916
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:960
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1992
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2024
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1976
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1164
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:876
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:636
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1664
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1248
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1420
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1560
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:528
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1916

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            a603dc0e13becc88ea8d695dc9bcc75a

            SHA1

            f0579e76c2c41a28f9b6085479d0da5abe64a95c

            SHA256

            2dbbf38313e0e447bfdc941e2c8e93100d6ed5df99cb2c26249549249ca45ad9

            SHA512

            fe9585cec823665061be7015550b4528c34f8d4921772f6058cd6c16f470dea11da1451ec2291e12fb51597190b1e92d5fc84606f22738ec20798cbb198e9db4

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            3d8c4163b9df4ee07033b27bfc7b2721

            SHA1

            8e323aba21463e7d11c1f060c810388c30b579d1

            SHA256

            da985b87617f6b4b8a61ea87b772f3133225379e9b818a066516c12ce61b13c2

            SHA512

            c56a8fc9d0210d572a629ae575130c0eab5783b09f5ea46601d68bb103dd8020c39c308bfce891bda995054c33a6648d1afb2c03cd3e110aca64ef92c9340794

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a868cbdd1fc4a73b3fce04bb6e5c72b5

            SHA1

            e337573f937755fbe1e412363dd9939aebe4b934

            SHA256

            cc7634cd0513a51fd3ce5d67fab47729a92f755c760e48105814da9d9df596cf

            SHA512

            0e4c81eee450840f590ed9ea2d703bdb090f352caaa4ec4d9d6cb4a0762806c6bb10a66c78c09bfdf9a118f3312721661d1885e7d48e2aed511e4c6e0496c87c

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            361ed33ab2b428f9657b5cc9e7046b12

            SHA1

            7a96e819ee045fd263b12511611eca2b9d185981

            SHA256

            3739cc1cc779de6dbfdc515a6cb5160474de68a34f4c58863e869a25fe16f004

            SHA512

            4c09817957d2ea4a7cbe30b9839ba8015dfdf9011c5affd915a3bf76e5b2101cb5fd3dc025e5b798e1a8ce3fd293853783dd53846c6dbd69b09fc0d73c9b5fee

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            361ed33ab2b428f9657b5cc9e7046b12

            SHA1

            7a96e819ee045fd263b12511611eca2b9d185981

            SHA256

            3739cc1cc779de6dbfdc515a6cb5160474de68a34f4c58863e869a25fe16f004

            SHA512

            4c09817957d2ea4a7cbe30b9839ba8015dfdf9011c5affd915a3bf76e5b2101cb5fd3dc025e5b798e1a8ce3fd293853783dd53846c6dbd69b09fc0d73c9b5fee

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            01491ad092035f2baffdbf5f4a9eaea5

            SHA1

            27ef6158b0508ce04542ed8fce8a81cc3da3a2af

            SHA256

            e7b0e7b05a48330a8781c042a88497ea54706cf9910a2f360c55747adc23dfbd

            SHA512

            6a286767f27148af775587167a1e7e7962923a45af28be4e268b4343237f6c40a49d9719b43c37be5d4ba180ade82775132075c0ba7e8f42bc84306684d9b13f

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            01491ad092035f2baffdbf5f4a9eaea5

            SHA1

            27ef6158b0508ce04542ed8fce8a81cc3da3a2af

            SHA256

            e7b0e7b05a48330a8781c042a88497ea54706cf9910a2f360c55747adc23dfbd

            SHA512

            6a286767f27148af775587167a1e7e7962923a45af28be4e268b4343237f6c40a49d9719b43c37be5d4ba180ade82775132075c0ba7e8f42bc84306684d9b13f

          • \Users\Admin\AppData\Local\Temp\nsy8A48.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy8A48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy8A48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy8A48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy8A48.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            a603dc0e13becc88ea8d695dc9bcc75a

            SHA1

            f0579e76c2c41a28f9b6085479d0da5abe64a95c

            SHA256

            2dbbf38313e0e447bfdc941e2c8e93100d6ed5df99cb2c26249549249ca45ad9

            SHA512

            fe9585cec823665061be7015550b4528c34f8d4921772f6058cd6c16f470dea11da1451ec2291e12fb51597190b1e92d5fc84606f22738ec20798cbb198e9db4

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            a603dc0e13becc88ea8d695dc9bcc75a

            SHA1

            f0579e76c2c41a28f9b6085479d0da5abe64a95c

            SHA256

            2dbbf38313e0e447bfdc941e2c8e93100d6ed5df99cb2c26249549249ca45ad9

            SHA512

            fe9585cec823665061be7015550b4528c34f8d4921772f6058cd6c16f470dea11da1451ec2291e12fb51597190b1e92d5fc84606f22738ec20798cbb198e9db4

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            a603dc0e13becc88ea8d695dc9bcc75a

            SHA1

            f0579e76c2c41a28f9b6085479d0da5abe64a95c

            SHA256

            2dbbf38313e0e447bfdc941e2c8e93100d6ed5df99cb2c26249549249ca45ad9

            SHA512

            fe9585cec823665061be7015550b4528c34f8d4921772f6058cd6c16f470dea11da1451ec2291e12fb51597190b1e92d5fc84606f22738ec20798cbb198e9db4

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            3d8c4163b9df4ee07033b27bfc7b2721

            SHA1

            8e323aba21463e7d11c1f060c810388c30b579d1

            SHA256

            da985b87617f6b4b8a61ea87b772f3133225379e9b818a066516c12ce61b13c2

            SHA512

            c56a8fc9d0210d572a629ae575130c0eab5783b09f5ea46601d68bb103dd8020c39c308bfce891bda995054c33a6648d1afb2c03cd3e110aca64ef92c9340794

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            3d8c4163b9df4ee07033b27bfc7b2721

            SHA1

            8e323aba21463e7d11c1f060c810388c30b579d1

            SHA256

            da985b87617f6b4b8a61ea87b772f3133225379e9b818a066516c12ce61b13c2

            SHA512

            c56a8fc9d0210d572a629ae575130c0eab5783b09f5ea46601d68bb103dd8020c39c308bfce891bda995054c33a6648d1afb2c03cd3e110aca64ef92c9340794

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a868cbdd1fc4a73b3fce04bb6e5c72b5

            SHA1

            e337573f937755fbe1e412363dd9939aebe4b934

            SHA256

            cc7634cd0513a51fd3ce5d67fab47729a92f755c760e48105814da9d9df596cf

            SHA512

            0e4c81eee450840f590ed9ea2d703bdb090f352caaa4ec4d9d6cb4a0762806c6bb10a66c78c09bfdf9a118f3312721661d1885e7d48e2aed511e4c6e0496c87c

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            361ed33ab2b428f9657b5cc9e7046b12

            SHA1

            7a96e819ee045fd263b12511611eca2b9d185981

            SHA256

            3739cc1cc779de6dbfdc515a6cb5160474de68a34f4c58863e869a25fe16f004

            SHA512

            4c09817957d2ea4a7cbe30b9839ba8015dfdf9011c5affd915a3bf76e5b2101cb5fd3dc025e5b798e1a8ce3fd293853783dd53846c6dbd69b09fc0d73c9b5fee

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            01491ad092035f2baffdbf5f4a9eaea5

            SHA1

            27ef6158b0508ce04542ed8fce8a81cc3da3a2af

            SHA256

            e7b0e7b05a48330a8781c042a88497ea54706cf9910a2f360c55747adc23dfbd

            SHA512

            6a286767f27148af775587167a1e7e7962923a45af28be4e268b4343237f6c40a49d9719b43c37be5d4ba180ade82775132075c0ba7e8f42bc84306684d9b13f

          • memory/636-77-0x0000000000000000-mapping.dmp
          • memory/876-70-0x0000000000000000-mapping.dmp
          • memory/916-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/916-75-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/916-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/916-54-0x0000000076871000-0x0000000076873000-memory.dmp
            Filesize

            8KB

          • memory/960-58-0x0000000000000000-mapping.dmp
          • memory/1164-64-0x0000000000000000-mapping.dmp
          • memory/1248-82-0x0000000000000000-mapping.dmp
          • memory/1420-87-0x0000000000000000-mapping.dmp
          • memory/1560-88-0x0000000000000000-mapping.dmp
          • memory/1664-81-0x0000000000000000-mapping.dmp
          • memory/1976-62-0x0000000000000000-mapping.dmp
          • memory/1992-59-0x0000000000000000-mapping.dmp
          • memory/2024-61-0x0000000000000000-mapping.dmp