Analysis

  • max time kernel
    27s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:35

General

  • Target

    013c569ca65a31178022bda47e308b2b9c26eacc7742a2a96dcbdbdb67d34ea7.exe

  • Size

    596KB

  • MD5

    1ab5fb20c69a88fa6ecc43365dcbae7e

  • SHA1

    7647437f92858d9cdc6d7ea8b7e907f96b499248

  • SHA256

    013c569ca65a31178022bda47e308b2b9c26eacc7742a2a96dcbdbdb67d34ea7

  • SHA512

    04cf4bd6f25c7863a68801c19bf1f2e4168a352b9f343a516216889c0f64fa1af70efeae389642ee361ec742a0ddea821fdc97cee57c822ce54e0d489097b7be

  • SSDEEP

    12288:OIny5DYT/w/Jt2CjKQPAmVPtztU9ZzMuSAe+pOP8:QUT/w/zbjKKFze9ZHp7

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\013c569ca65a31178022bda47e308b2b9c26eacc7742a2a96dcbdbdb67d34ea7.exe
    "C:\Users\Admin\AppData\Local\Temp\013c569ca65a31178022bda47e308b2b9c26eacc7742a2a96dcbdbdb67d34ea7.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:1848
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:276
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1976
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2036
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1996
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1736
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1712
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1328
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:332
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1956
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1520
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1664
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:840
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:560

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5306c215c8e045929e46660414b59eac

            SHA1

            b3d8bf6a0b160ada1d7dd2507ffb2531ffd42706

            SHA256

            b2b8d00335a81742291a16b8dd698adf6c3a5e475f59f214a5a6cf237c414a89

            SHA512

            490e7d2b25fd78876b83c49b15f30f914b53bfd148fad4f5a06ed9876e4d474dbdc303cc25a8b088bda82b844d5f4ee8bef9febd5a2715a1a6e09c27c40a4b2e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e5777e1344a0e9d1022f655d753f12f5

            SHA1

            1aff9c06b5aab77c821b458754e2162dd8a1f121

            SHA256

            21fbb2f1e8b0321044c564246a2985c83b46059c5ebe21f6060b8fc861669485

            SHA512

            594358a0e45e7124aaf54618f4d68549f3947efb1151fc5b8a00a1269c68a1dc00b3de357ac4f60be826da1c44164197b9bcf47b6e13a3784c5b1c1513b8643a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            976b33f6000ecda654d250e085a9146d

            SHA1

            efb3b0ecbb23167ade9306e1b1617036ce3cd348

            SHA256

            ff92d0a2830a2f244a5f9b0234a3090fe99d75a9eaf3737d0a83972229e5662a

            SHA512

            d8d076afa30e4b4bc44f5958a62d0417ee8882b713ac405dda76d5634202a8fc54b8d60b4879c747a9dd6dd0fdfe1d93cd50d26c687f441eca5369a73ffc01e3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7e4272d790d0d8cff0dce90f14d76742

            SHA1

            3e209816ddc0de228702bc92fe207e75cb514ec7

            SHA256

            a8d7d53411fa60a172d0e4e9e7de96066169331ef30bc1f63aa6d9f529dc43f8

            SHA512

            eeabf37906ad6dff46d8d1d1755dbe1c25b31b6cd257b444db3f7a8c261d5a612926cdb4116aa3b702696a0a86486ea39b8e0919edd3a3c5b0d2009e7c812230

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7e4272d790d0d8cff0dce90f14d76742

            SHA1

            3e209816ddc0de228702bc92fe207e75cb514ec7

            SHA256

            a8d7d53411fa60a172d0e4e9e7de96066169331ef30bc1f63aa6d9f529dc43f8

            SHA512

            eeabf37906ad6dff46d8d1d1755dbe1c25b31b6cd257b444db3f7a8c261d5a612926cdb4116aa3b702696a0a86486ea39b8e0919edd3a3c5b0d2009e7c812230

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0c88ad9965a0dbf8bf556dd6529a5fb5

            SHA1

            f773337a7904b56293ba74e12c76f9d06b2940bd

            SHA256

            677df2c6ada7f50b2b1ac3bb5e9cc8a9e50ec0405fa02b9b6168e605ebaa0853

            SHA512

            c3a90ac7717329be38c3b3cb751030792954b7e2c5b100838a6c6902624d3978f31e903adc7177ac03709efc46baa90c912324a445b97a8f53b89d0adab0d3ba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0c88ad9965a0dbf8bf556dd6529a5fb5

            SHA1

            f773337a7904b56293ba74e12c76f9d06b2940bd

            SHA256

            677df2c6ada7f50b2b1ac3bb5e9cc8a9e50ec0405fa02b9b6168e605ebaa0853

            SHA512

            c3a90ac7717329be38c3b3cb751030792954b7e2c5b100838a6c6902624d3978f31e903adc7177ac03709efc46baa90c912324a445b97a8f53b89d0adab0d3ba

          • \Users\Admin\AppData\Local\Temp\nsd42CD.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd42CD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd42CD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd42CD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd42CD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5306c215c8e045929e46660414b59eac

            SHA1

            b3d8bf6a0b160ada1d7dd2507ffb2531ffd42706

            SHA256

            b2b8d00335a81742291a16b8dd698adf6c3a5e475f59f214a5a6cf237c414a89

            SHA512

            490e7d2b25fd78876b83c49b15f30f914b53bfd148fad4f5a06ed9876e4d474dbdc303cc25a8b088bda82b844d5f4ee8bef9febd5a2715a1a6e09c27c40a4b2e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5306c215c8e045929e46660414b59eac

            SHA1

            b3d8bf6a0b160ada1d7dd2507ffb2531ffd42706

            SHA256

            b2b8d00335a81742291a16b8dd698adf6c3a5e475f59f214a5a6cf237c414a89

            SHA512

            490e7d2b25fd78876b83c49b15f30f914b53bfd148fad4f5a06ed9876e4d474dbdc303cc25a8b088bda82b844d5f4ee8bef9febd5a2715a1a6e09c27c40a4b2e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5306c215c8e045929e46660414b59eac

            SHA1

            b3d8bf6a0b160ada1d7dd2507ffb2531ffd42706

            SHA256

            b2b8d00335a81742291a16b8dd698adf6c3a5e475f59f214a5a6cf237c414a89

            SHA512

            490e7d2b25fd78876b83c49b15f30f914b53bfd148fad4f5a06ed9876e4d474dbdc303cc25a8b088bda82b844d5f4ee8bef9febd5a2715a1a6e09c27c40a4b2e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e5777e1344a0e9d1022f655d753f12f5

            SHA1

            1aff9c06b5aab77c821b458754e2162dd8a1f121

            SHA256

            21fbb2f1e8b0321044c564246a2985c83b46059c5ebe21f6060b8fc861669485

            SHA512

            594358a0e45e7124aaf54618f4d68549f3947efb1151fc5b8a00a1269c68a1dc00b3de357ac4f60be826da1c44164197b9bcf47b6e13a3784c5b1c1513b8643a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e5777e1344a0e9d1022f655d753f12f5

            SHA1

            1aff9c06b5aab77c821b458754e2162dd8a1f121

            SHA256

            21fbb2f1e8b0321044c564246a2985c83b46059c5ebe21f6060b8fc861669485

            SHA512

            594358a0e45e7124aaf54618f4d68549f3947efb1151fc5b8a00a1269c68a1dc00b3de357ac4f60be826da1c44164197b9bcf47b6e13a3784c5b1c1513b8643a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            976b33f6000ecda654d250e085a9146d

            SHA1

            efb3b0ecbb23167ade9306e1b1617036ce3cd348

            SHA256

            ff92d0a2830a2f244a5f9b0234a3090fe99d75a9eaf3737d0a83972229e5662a

            SHA512

            d8d076afa30e4b4bc44f5958a62d0417ee8882b713ac405dda76d5634202a8fc54b8d60b4879c747a9dd6dd0fdfe1d93cd50d26c687f441eca5369a73ffc01e3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7e4272d790d0d8cff0dce90f14d76742

            SHA1

            3e209816ddc0de228702bc92fe207e75cb514ec7

            SHA256

            a8d7d53411fa60a172d0e4e9e7de96066169331ef30bc1f63aa6d9f529dc43f8

            SHA512

            eeabf37906ad6dff46d8d1d1755dbe1c25b31b6cd257b444db3f7a8c261d5a612926cdb4116aa3b702696a0a86486ea39b8e0919edd3a3c5b0d2009e7c812230

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            0c88ad9965a0dbf8bf556dd6529a5fb5

            SHA1

            f773337a7904b56293ba74e12c76f9d06b2940bd

            SHA256

            677df2c6ada7f50b2b1ac3bb5e9cc8a9e50ec0405fa02b9b6168e605ebaa0853

            SHA512

            c3a90ac7717329be38c3b3cb751030792954b7e2c5b100838a6c6902624d3978f31e903adc7177ac03709efc46baa90c912324a445b97a8f53b89d0adab0d3ba

          • memory/276-57-0x0000000000000000-mapping.dmp

          • memory/332-80-0x0000000000000000-mapping.dmp

          • memory/1328-76-0x0000000000000000-mapping.dmp

          • memory/1520-86-0x0000000000000000-mapping.dmp

          • memory/1664-87-0x0000000000000000-mapping.dmp

          • memory/1712-70-0x0000000000000000-mapping.dmp

          • memory/1736-64-0x0000000000000000-mapping.dmp

          • memory/1848-54-0x0000000075241000-0x0000000075243000-memory.dmp

            Filesize

            8KB

          • memory/1848-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1848-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1956-81-0x0000000000000000-mapping.dmp

          • memory/1976-58-0x0000000000000000-mapping.dmp

          • memory/1996-62-0x0000000000000000-mapping.dmp

          • memory/2036-61-0x0000000000000000-mapping.dmp