Analysis

  • max time kernel
    68s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:31

General

  • Target

    2324b4178e96aa0e226e17848e7f1f1a5ec949e3861913cc3147dbab5ef5974b.exe

  • Size

    601KB

  • MD5

    1e5b3df7fe40e477ede87c960da2a1cf

  • SHA1

    59ddd0da0790e5344503cb3f1f9427448c880457

  • SHA256

    2324b4178e96aa0e226e17848e7f1f1a5ec949e3861913cc3147dbab5ef5974b

  • SHA512

    b7cc99d0a02b014f4532e68796a5aa2f749a87d3cf5c4510870a708947a806977e5e8d88209b73c55829c2d1758ba33b5c0db4484fe7cf75bbe30a039af1ebf3

  • SSDEEP

    12288:CIny5DYT41iGQrps+TaEGG6wq1RDdQmuMsyDqTqmpuyflKurnrfSPxGBns1:kUT41Gt7TagS1RDUd2mpvflKurO11

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\2324b4178e96aa0e226e17848e7f1f1a5ec949e3861913cc3147dbab5ef5974b.exe
    "C:\Users\Admin\AppData\Local\Temp\2324b4178e96aa0e226e17848e7f1f1a5ec949e3861913cc3147dbab5ef5974b.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:1472
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:520
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1492
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1240
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:640
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1360
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:940
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1512
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1460
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:700
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1436
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1204
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1856
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2024

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2badc064ceefb61fe343ffe77fd61921

            SHA1

            514418385817c40f065e0051cb2a799fd9aa0cc4

            SHA256

            a36bca4e4535ea2533afd67c3591fbcb9876153b5902bd10be4555f75617d8e2

            SHA512

            ca37159f1513e61e9116183be66cfe7038c3f9e62aaa422e21669d7ddfe886b9c5f55e744c35f8d7a428d25533e423729f7010eb0341363a2094b712c5c5ba1a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            96d49cadafdee8d1c87401608a7d8364

            SHA1

            d76fb2f7666140a3b18de8cc3a2a1671b79c9449

            SHA256

            f53508b7059a532a5abf32509b88d49bdeff29225ddcd74ad7b74f1ca2605a2b

            SHA512

            bd380853ad066401cc0dce71ea8197fb5886aee27e9911215f1508325796b8169dbbbd3ddbf4f28a48cdebb49b9fd89a59388d143e6fb59fbe62158cccfdca2c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fbcdc48e1acdcf11786e2df73d3e1f5b

            SHA1

            8998656f150e75887f6dd941621faf7a632f7e60

            SHA256

            4339c31e3890aa54f8e2a825d82217e8ce004f30f4b8caf1047ec9195954682c

            SHA512

            6cd4fc7d7b9216c10aee344cbacb5c7158806c30ac5ee935007d48eee6fea9bf0c10ff37b514acf67e34fa355ca96a71ce31d680e0ac404e248a39a7eb419d78

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            22b44bb37e11d83861433dc40ff5fa9f

            SHA1

            8972be3837d5deb10e15dd9f16e07b20523e3f76

            SHA256

            34777ad72cccca3ce3bd60230232f8b0e87d29c0acdb8df93cb277457803c684

            SHA512

            c715f4b44cb3161e3398f553c75de688dbceebc07bc0f1cea85da7e34b84d8107d3ee79e70f36f50236111b79ab5f08d27590377046f4fdfb8cac06f062a9443

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            22b44bb37e11d83861433dc40ff5fa9f

            SHA1

            8972be3837d5deb10e15dd9f16e07b20523e3f76

            SHA256

            34777ad72cccca3ce3bd60230232f8b0e87d29c0acdb8df93cb277457803c684

            SHA512

            c715f4b44cb3161e3398f553c75de688dbceebc07bc0f1cea85da7e34b84d8107d3ee79e70f36f50236111b79ab5f08d27590377046f4fdfb8cac06f062a9443

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7de05334e87cdd6ddbc37b95a53d233d

            SHA1

            6f33e991c9bfaf51c3fdf506912475c25ee7c6d8

            SHA256

            a9ff561982eab92595104039fed54300f5f3a5a08d317163488e30d754c8bc4f

            SHA512

            8eb2cef701a8d7abf870f2cb68f52477be8f069325b188f00bdfc20ba256db2d892b935e6b21a401fadde6c7a4906461766f2b764a020b15186fd352756152de

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7de05334e87cdd6ddbc37b95a53d233d

            SHA1

            6f33e991c9bfaf51c3fdf506912475c25ee7c6d8

            SHA256

            a9ff561982eab92595104039fed54300f5f3a5a08d317163488e30d754c8bc4f

            SHA512

            8eb2cef701a8d7abf870f2cb68f52477be8f069325b188f00bdfc20ba256db2d892b935e6b21a401fadde6c7a4906461766f2b764a020b15186fd352756152de

          • \Users\Admin\AppData\Local\Temp\nsoAE9A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoAE9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAE9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAE9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAE9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2badc064ceefb61fe343ffe77fd61921

            SHA1

            514418385817c40f065e0051cb2a799fd9aa0cc4

            SHA256

            a36bca4e4535ea2533afd67c3591fbcb9876153b5902bd10be4555f75617d8e2

            SHA512

            ca37159f1513e61e9116183be66cfe7038c3f9e62aaa422e21669d7ddfe886b9c5f55e744c35f8d7a428d25533e423729f7010eb0341363a2094b712c5c5ba1a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2badc064ceefb61fe343ffe77fd61921

            SHA1

            514418385817c40f065e0051cb2a799fd9aa0cc4

            SHA256

            a36bca4e4535ea2533afd67c3591fbcb9876153b5902bd10be4555f75617d8e2

            SHA512

            ca37159f1513e61e9116183be66cfe7038c3f9e62aaa422e21669d7ddfe886b9c5f55e744c35f8d7a428d25533e423729f7010eb0341363a2094b712c5c5ba1a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2badc064ceefb61fe343ffe77fd61921

            SHA1

            514418385817c40f065e0051cb2a799fd9aa0cc4

            SHA256

            a36bca4e4535ea2533afd67c3591fbcb9876153b5902bd10be4555f75617d8e2

            SHA512

            ca37159f1513e61e9116183be66cfe7038c3f9e62aaa422e21669d7ddfe886b9c5f55e744c35f8d7a428d25533e423729f7010eb0341363a2094b712c5c5ba1a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            96d49cadafdee8d1c87401608a7d8364

            SHA1

            d76fb2f7666140a3b18de8cc3a2a1671b79c9449

            SHA256

            f53508b7059a532a5abf32509b88d49bdeff29225ddcd74ad7b74f1ca2605a2b

            SHA512

            bd380853ad066401cc0dce71ea8197fb5886aee27e9911215f1508325796b8169dbbbd3ddbf4f28a48cdebb49b9fd89a59388d143e6fb59fbe62158cccfdca2c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            96d49cadafdee8d1c87401608a7d8364

            SHA1

            d76fb2f7666140a3b18de8cc3a2a1671b79c9449

            SHA256

            f53508b7059a532a5abf32509b88d49bdeff29225ddcd74ad7b74f1ca2605a2b

            SHA512

            bd380853ad066401cc0dce71ea8197fb5886aee27e9911215f1508325796b8169dbbbd3ddbf4f28a48cdebb49b9fd89a59388d143e6fb59fbe62158cccfdca2c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fbcdc48e1acdcf11786e2df73d3e1f5b

            SHA1

            8998656f150e75887f6dd941621faf7a632f7e60

            SHA256

            4339c31e3890aa54f8e2a825d82217e8ce004f30f4b8caf1047ec9195954682c

            SHA512

            6cd4fc7d7b9216c10aee344cbacb5c7158806c30ac5ee935007d48eee6fea9bf0c10ff37b514acf67e34fa355ca96a71ce31d680e0ac404e248a39a7eb419d78

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            22b44bb37e11d83861433dc40ff5fa9f

            SHA1

            8972be3837d5deb10e15dd9f16e07b20523e3f76

            SHA256

            34777ad72cccca3ce3bd60230232f8b0e87d29c0acdb8df93cb277457803c684

            SHA512

            c715f4b44cb3161e3398f553c75de688dbceebc07bc0f1cea85da7e34b84d8107d3ee79e70f36f50236111b79ab5f08d27590377046f4fdfb8cac06f062a9443

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7de05334e87cdd6ddbc37b95a53d233d

            SHA1

            6f33e991c9bfaf51c3fdf506912475c25ee7c6d8

            SHA256

            a9ff561982eab92595104039fed54300f5f3a5a08d317163488e30d754c8bc4f

            SHA512

            8eb2cef701a8d7abf870f2cb68f52477be8f069325b188f00bdfc20ba256db2d892b935e6b21a401fadde6c7a4906461766f2b764a020b15186fd352756152de

          • memory/520-58-0x0000000000000000-mapping.dmp

          • memory/640-62-0x0000000000000000-mapping.dmp

          • memory/700-82-0x0000000000000000-mapping.dmp

          • memory/940-71-0x0000000000000000-mapping.dmp

          • memory/1204-88-0x0000000000000000-mapping.dmp

          • memory/1240-61-0x0000000000000000-mapping.dmp

          • memory/1360-64-0x0000000000000000-mapping.dmp

          • memory/1436-87-0x0000000000000000-mapping.dmp

          • memory/1460-81-0x0000000000000000-mapping.dmp

          • memory/1472-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

            Filesize

            8KB

          • memory/1472-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1472-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1472-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1492-59-0x0000000000000000-mapping.dmp

          • memory/1512-77-0x0000000000000000-mapping.dmp