Analysis

  • max time kernel
    27s
  • 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 10:12

General

  • Target

    c68474010868fd816084220384d53167094be8569d3e987099cb562bbe79a27d.exe

  • Size

    601KB

  • MD5

    b9c558cc07dbc82eb4c3d055872cc56f

  • SHA1

    a99ec3965fdceb01b031fcb4ecf970eff9339b2f

  • SHA256

    c68474010868fd816084220384d53167094be8569d3e987099cb562bbe79a27d

  • SHA512

    ade2032e4d4402bf09dd44766bc28361f5976f6308e4d0d7826bb1758b1692e37e176b8decd3dad0a4eb0298b8f681f90c6227f8e21715c88d77fe5093ed837d

  • SSDEEP

    12288:BIny5DYTtJXVe38KhDYd/DvoDNv5rFqF2VLhIHM:9UTt9E38Khsd/0NvJFqmIH

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\c68474010868fd816084220384d53167094be8569d3e987099cb562bbe79a27d.exe
    "C:\Users\Admin\AppData\Local\Temp\c68474010868fd816084220384d53167094be8569d3e987099cb562bbe79a27d.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:1920
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1896
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1964
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:984
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:896
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1816
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1528
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1192
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:268
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2028
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:676
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:964
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1020

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            703731e683b505b25247fd24550d4d41

            SHA1

            e09f664e7378d7496fb93a62a18e49d9218ac171

            SHA256

            13718aa4653e1ee2ea3b66905a50555d8ad7faec1a435aec2f43b1f2e2f38869

            SHA512

            5165746984322166ef30227167693108c6696a37acbcf3cafec04f056aab5de6bbac371fc7908dd486bb4657b3792134d3088163b2a4f54536936588cc0c6cba

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            065fb0fbec3f504e89e90b8985a3e193

            SHA1

            2f86f8816419629cff2888cf789f780677a1ab50

            SHA256

            6025ae2d45df3d45ad8928e6f5db08e4fee1a647f6efa5da983821a887a818af

            SHA512

            38a15efb18e73672259697d5e5ad8c0df9dd33c479c3dda08fa01ee1da2cdc90883cf771220fbf5ab8a4afc13b2a417973f82a370d5f5d412f60dab7b51f79d2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5d0e3de80b3c935a209581538d47275d

            SHA1

            d0c91958f8fb30aeac85d5822a992b6475444677

            SHA256

            15b4ea64c7d22f239ae6f2d3ec8dbacdf166e2ea0e917e636b9ad3a593cf6b1f

            SHA512

            1e0e21a312091c4523cfb4ae21d641756f9097befcb027d550b6e931b0804c039ee766d236407d4b6156b86d00d2fc7c8dc3be1309285b79df370fbd65dafb62

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3c8fb3232498e946698429bed2528b7c

            SHA1

            554b94f228af39ff47c85849da8b324252becf1a

            SHA256

            8e1b63bb0365cd75e4865276a29b5758cd8b4c695c334bc5294f6467c3459cbd

            SHA512

            345b3143c96560ac186246f99ab27efeeff0724cd2e19e33f8b86a4a95713b9bdd4ca337e6b5d6ce5fe751facf1d8c68a9ac51659b2b5eb88e8c79bd253bbcc6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3c8fb3232498e946698429bed2528b7c

            SHA1

            554b94f228af39ff47c85849da8b324252becf1a

            SHA256

            8e1b63bb0365cd75e4865276a29b5758cd8b4c695c334bc5294f6467c3459cbd

            SHA512

            345b3143c96560ac186246f99ab27efeeff0724cd2e19e33f8b86a4a95713b9bdd4ca337e6b5d6ce5fe751facf1d8c68a9ac51659b2b5eb88e8c79bd253bbcc6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fc1ca4ead423537b923b97a2a45d2427

            SHA1

            7d367774a744d50bc82876c04c332c1b1a66cc8b

            SHA256

            b9f8c7d88e086024935a7ff079fee72f70632bfd4e4fc0f15378943e6759f500

            SHA512

            990c2170c0cd28cd95dc2719a23af5ebaa6f6b9171e3ba43710a39d8688157192efd5e06d6c34bf6a92b7a5c74ed0ce2d3133c4a71e0e520efd169f4f68e6926

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fc1ca4ead423537b923b97a2a45d2427

            SHA1

            7d367774a744d50bc82876c04c332c1b1a66cc8b

            SHA256

            b9f8c7d88e086024935a7ff079fee72f70632bfd4e4fc0f15378943e6759f500

            SHA512

            990c2170c0cd28cd95dc2719a23af5ebaa6f6b9171e3ba43710a39d8688157192efd5e06d6c34bf6a92b7a5c74ed0ce2d3133c4a71e0e520efd169f4f68e6926

          • \Users\Admin\AppData\Local\Temp\nsoA306.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoA306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            703731e683b505b25247fd24550d4d41

            SHA1

            e09f664e7378d7496fb93a62a18e49d9218ac171

            SHA256

            13718aa4653e1ee2ea3b66905a50555d8ad7faec1a435aec2f43b1f2e2f38869

            SHA512

            5165746984322166ef30227167693108c6696a37acbcf3cafec04f056aab5de6bbac371fc7908dd486bb4657b3792134d3088163b2a4f54536936588cc0c6cba

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            703731e683b505b25247fd24550d4d41

            SHA1

            e09f664e7378d7496fb93a62a18e49d9218ac171

            SHA256

            13718aa4653e1ee2ea3b66905a50555d8ad7faec1a435aec2f43b1f2e2f38869

            SHA512

            5165746984322166ef30227167693108c6696a37acbcf3cafec04f056aab5de6bbac371fc7908dd486bb4657b3792134d3088163b2a4f54536936588cc0c6cba

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            703731e683b505b25247fd24550d4d41

            SHA1

            e09f664e7378d7496fb93a62a18e49d9218ac171

            SHA256

            13718aa4653e1ee2ea3b66905a50555d8ad7faec1a435aec2f43b1f2e2f38869

            SHA512

            5165746984322166ef30227167693108c6696a37acbcf3cafec04f056aab5de6bbac371fc7908dd486bb4657b3792134d3088163b2a4f54536936588cc0c6cba

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            065fb0fbec3f504e89e90b8985a3e193

            SHA1

            2f86f8816419629cff2888cf789f780677a1ab50

            SHA256

            6025ae2d45df3d45ad8928e6f5db08e4fee1a647f6efa5da983821a887a818af

            SHA512

            38a15efb18e73672259697d5e5ad8c0df9dd33c479c3dda08fa01ee1da2cdc90883cf771220fbf5ab8a4afc13b2a417973f82a370d5f5d412f60dab7b51f79d2

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            065fb0fbec3f504e89e90b8985a3e193

            SHA1

            2f86f8816419629cff2888cf789f780677a1ab50

            SHA256

            6025ae2d45df3d45ad8928e6f5db08e4fee1a647f6efa5da983821a887a818af

            SHA512

            38a15efb18e73672259697d5e5ad8c0df9dd33c479c3dda08fa01ee1da2cdc90883cf771220fbf5ab8a4afc13b2a417973f82a370d5f5d412f60dab7b51f79d2

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5d0e3de80b3c935a209581538d47275d

            SHA1

            d0c91958f8fb30aeac85d5822a992b6475444677

            SHA256

            15b4ea64c7d22f239ae6f2d3ec8dbacdf166e2ea0e917e636b9ad3a593cf6b1f

            SHA512

            1e0e21a312091c4523cfb4ae21d641756f9097befcb027d550b6e931b0804c039ee766d236407d4b6156b86d00d2fc7c8dc3be1309285b79df370fbd65dafb62

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3c8fb3232498e946698429bed2528b7c

            SHA1

            554b94f228af39ff47c85849da8b324252becf1a

            SHA256

            8e1b63bb0365cd75e4865276a29b5758cd8b4c695c334bc5294f6467c3459cbd

            SHA512

            345b3143c96560ac186246f99ab27efeeff0724cd2e19e33f8b86a4a95713b9bdd4ca337e6b5d6ce5fe751facf1d8c68a9ac51659b2b5eb88e8c79bd253bbcc6

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fc1ca4ead423537b923b97a2a45d2427

            SHA1

            7d367774a744d50bc82876c04c332c1b1a66cc8b

            SHA256

            b9f8c7d88e086024935a7ff079fee72f70632bfd4e4fc0f15378943e6759f500

            SHA512

            990c2170c0cd28cd95dc2719a23af5ebaa6f6b9171e3ba43710a39d8688157192efd5e06d6c34bf6a92b7a5c74ed0ce2d3133c4a71e0e520efd169f4f68e6926

          • memory/268-82-0x0000000000000000-mapping.dmp

          • memory/676-88-0x0000000000000000-mapping.dmp

          • memory/896-64-0x0000000000000000-mapping.dmp

          • memory/984-62-0x0000000000000000-mapping.dmp

          • memory/1192-81-0x0000000000000000-mapping.dmp

          • memory/1480-61-0x0000000000000000-mapping.dmp

          • memory/1528-77-0x0000000000000000-mapping.dmp

          • memory/1816-70-0x0000000000000000-mapping.dmp

          • memory/1896-57-0x0000000000000000-mapping.dmp

          • memory/1920-54-0x0000000076121000-0x0000000076123000-memory.dmp

            Filesize

            8KB

          • memory/1920-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1920-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1920-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1964-58-0x0000000000000000-mapping.dmp

          • memory/2028-87-0x0000000000000000-mapping.dmp