Analysis

  • max time kernel
    48s
  • 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 10:10

General

  • Target

    de8d7ddbaa556555ad0ff015966a81200195cb0fc127d9db139dcc3582902713.exe

  • Size

    601KB

  • MD5

    a4f6c8a2fffe3792aeed6a9307c83096

  • SHA1

    344ab3264642024edb5a875a78ac4f534ff9d8ef

  • SHA256

    de8d7ddbaa556555ad0ff015966a81200195cb0fc127d9db139dcc3582902713

  • SHA512

    1d8b887b94cbf534f27e0c600c642e5bdc6c51527f48c874170bbddd5a4035e4c49678981c80f682815d10784bcf826b4284e609cf9d86aa018b5440955a7dfe

  • SSDEEP

    12288:RIny5DYT421RvMhNCB+CKo7A6TENDMLrhpbCA/:tUT423icnfNADMrhAQ

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\de8d7ddbaa556555ad0ff015966a81200195cb0fc127d9db139dcc3582902713.exe
    "C:\Users\Admin\AppData\Local\Temp\de8d7ddbaa556555ad0ff015966a81200195cb0fc127d9db139dcc3582902713.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:780
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2012
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1980
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1900
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1936
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:976
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1164
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1216
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1732
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1944
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1664
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:556
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:972
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2032

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2d6d4f657995b9c9fec0d4f423ea5be2

            SHA1

            392addeabf6074352cffa022e4df404c74a9c0ef

            SHA256

            751e1618f0d9c450b32b33024f0dea757219c90d9d92b9cbaca105bb5ea4050c

            SHA512

            e10276a47ffe646c71a2498b8713a2f50cf686e40cf2a9b1613413532c1dba32eb2d4879b6b0d7aac443824a01e4c3eb10cbf9780270124b41c6eea3724e84f8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            52e47b04b89dc65bf38e0f8523fb5ae3

            SHA1

            7d1deda6bbc6e9c05059ae714595d1dc37277390

            SHA256

            d50ce355621bbaaaefc092da243a20c7ad79ba1ad52e64a5a3cda40266241a5a

            SHA512

            09389a697b8006a414de4a628a530d66a3107b52ece01fe708de6499ba04aa1e34b6e6fc82335857bc2e0fa5bfa437aa7f8f802ab7651a7f9e44cb5b12469ad9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8355ec05026cec03dd32ab34dea5151c

            SHA1

            207b78ce47c1adc4829c0a6e9094ce70f75e6db7

            SHA256

            7e1d772b2650d1d564389e217072a0e5e9528cb4b6f4168eb32c2543494fd47b

            SHA512

            0efa048fdcbccf9758976d4ffe1bf419ce8e5c7ea3815abc32c902fed6812d0388685b5c6f3e5f3224df59c30431db8de6010df4cf7d400d572114121cf23593

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ad3dc4f230f16f60faf515a76d39fbe7

            SHA1

            1636c6bc9618f5ea8be94473f33e1a4b93ac7036

            SHA256

            57468137c6165437cabbaf11c0da2bb2c9f49d11bd6d94aaf6f8ae4dad435f7f

            SHA512

            588eedb56674a29599d307ca59fc97e82388b4d710d9e19b2d7a2ca42e12360e5171e32372f64479b4f49c2d0fd27eec7c00c9e298511a97d3d90d2010d9524f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ad3dc4f230f16f60faf515a76d39fbe7

            SHA1

            1636c6bc9618f5ea8be94473f33e1a4b93ac7036

            SHA256

            57468137c6165437cabbaf11c0da2bb2c9f49d11bd6d94aaf6f8ae4dad435f7f

            SHA512

            588eedb56674a29599d307ca59fc97e82388b4d710d9e19b2d7a2ca42e12360e5171e32372f64479b4f49c2d0fd27eec7c00c9e298511a97d3d90d2010d9524f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            06063709bd77dfdf8bc5163cb51ba936

            SHA1

            2f010b7f9bee6301ffade9c743ff224d19b4aa6c

            SHA256

            30e900e2f12ac04a74ad67ae0fdf4b865349389ca49dec90fb2a6df00e5c623c

            SHA512

            3783a45ecc1a322da770d2d2437f4af84a2cc665d5733bc9f976960c13030d54bb55b6f8dc8c254d8356d8064a418a044b80070e2dbef8a17d9f75e2ee996b80

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            06063709bd77dfdf8bc5163cb51ba936

            SHA1

            2f010b7f9bee6301ffade9c743ff224d19b4aa6c

            SHA256

            30e900e2f12ac04a74ad67ae0fdf4b865349389ca49dec90fb2a6df00e5c623c

            SHA512

            3783a45ecc1a322da770d2d2437f4af84a2cc665d5733bc9f976960c13030d54bb55b6f8dc8c254d8356d8064a418a044b80070e2dbef8a17d9f75e2ee996b80

          • \Users\Admin\AppData\Local\Temp\nst3527.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst3527.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3527.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3527.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3527.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2d6d4f657995b9c9fec0d4f423ea5be2

            SHA1

            392addeabf6074352cffa022e4df404c74a9c0ef

            SHA256

            751e1618f0d9c450b32b33024f0dea757219c90d9d92b9cbaca105bb5ea4050c

            SHA512

            e10276a47ffe646c71a2498b8713a2f50cf686e40cf2a9b1613413532c1dba32eb2d4879b6b0d7aac443824a01e4c3eb10cbf9780270124b41c6eea3724e84f8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2d6d4f657995b9c9fec0d4f423ea5be2

            SHA1

            392addeabf6074352cffa022e4df404c74a9c0ef

            SHA256

            751e1618f0d9c450b32b33024f0dea757219c90d9d92b9cbaca105bb5ea4050c

            SHA512

            e10276a47ffe646c71a2498b8713a2f50cf686e40cf2a9b1613413532c1dba32eb2d4879b6b0d7aac443824a01e4c3eb10cbf9780270124b41c6eea3724e84f8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2d6d4f657995b9c9fec0d4f423ea5be2

            SHA1

            392addeabf6074352cffa022e4df404c74a9c0ef

            SHA256

            751e1618f0d9c450b32b33024f0dea757219c90d9d92b9cbaca105bb5ea4050c

            SHA512

            e10276a47ffe646c71a2498b8713a2f50cf686e40cf2a9b1613413532c1dba32eb2d4879b6b0d7aac443824a01e4c3eb10cbf9780270124b41c6eea3724e84f8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            52e47b04b89dc65bf38e0f8523fb5ae3

            SHA1

            7d1deda6bbc6e9c05059ae714595d1dc37277390

            SHA256

            d50ce355621bbaaaefc092da243a20c7ad79ba1ad52e64a5a3cda40266241a5a

            SHA512

            09389a697b8006a414de4a628a530d66a3107b52ece01fe708de6499ba04aa1e34b6e6fc82335857bc2e0fa5bfa437aa7f8f802ab7651a7f9e44cb5b12469ad9

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            52e47b04b89dc65bf38e0f8523fb5ae3

            SHA1

            7d1deda6bbc6e9c05059ae714595d1dc37277390

            SHA256

            d50ce355621bbaaaefc092da243a20c7ad79ba1ad52e64a5a3cda40266241a5a

            SHA512

            09389a697b8006a414de4a628a530d66a3107b52ece01fe708de6499ba04aa1e34b6e6fc82335857bc2e0fa5bfa437aa7f8f802ab7651a7f9e44cb5b12469ad9

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8355ec05026cec03dd32ab34dea5151c

            SHA1

            207b78ce47c1adc4829c0a6e9094ce70f75e6db7

            SHA256

            7e1d772b2650d1d564389e217072a0e5e9528cb4b6f4168eb32c2543494fd47b

            SHA512

            0efa048fdcbccf9758976d4ffe1bf419ce8e5c7ea3815abc32c902fed6812d0388685b5c6f3e5f3224df59c30431db8de6010df4cf7d400d572114121cf23593

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ad3dc4f230f16f60faf515a76d39fbe7

            SHA1

            1636c6bc9618f5ea8be94473f33e1a4b93ac7036

            SHA256

            57468137c6165437cabbaf11c0da2bb2c9f49d11bd6d94aaf6f8ae4dad435f7f

            SHA512

            588eedb56674a29599d307ca59fc97e82388b4d710d9e19b2d7a2ca42e12360e5171e32372f64479b4f49c2d0fd27eec7c00c9e298511a97d3d90d2010d9524f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            06063709bd77dfdf8bc5163cb51ba936

            SHA1

            2f010b7f9bee6301ffade9c743ff224d19b4aa6c

            SHA256

            30e900e2f12ac04a74ad67ae0fdf4b865349389ca49dec90fb2a6df00e5c623c

            SHA512

            3783a45ecc1a322da770d2d2437f4af84a2cc665d5733bc9f976960c13030d54bb55b6f8dc8c254d8356d8064a418a044b80070e2dbef8a17d9f75e2ee996b80

          • memory/556-88-0x0000000000000000-mapping.dmp

          • memory/780-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/780-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/780-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/780-54-0x0000000076121000-0x0000000076123000-memory.dmp

            Filesize

            8KB

          • memory/976-64-0x0000000000000000-mapping.dmp

          • memory/1164-70-0x0000000000000000-mapping.dmp

          • memory/1216-77-0x0000000000000000-mapping.dmp

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

          • memory/1732-81-0x0000000000000000-mapping.dmp

          • memory/1900-61-0x0000000000000000-mapping.dmp

          • memory/1936-62-0x0000000000000000-mapping.dmp

          • memory/1944-82-0x0000000000000000-mapping.dmp

          • memory/1980-58-0x0000000000000000-mapping.dmp

          • memory/2012-57-0x0000000000000000-mapping.dmp