Analysis

  • max time kernel
    12s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24-11-2022 06:00

General

  • Target

    db0ced416a0bd3d2a8b181f8d9dd402599859c2b4ad3d3c45cdf6ffab26b8a94.exe

  • Size

    695KB

  • MD5

    4e2c076d2885f92d53a1529c40662866

  • SHA1

    25b33081a6766008ec4af0713012be834b88a479

  • SHA256

    db0ced416a0bd3d2a8b181f8d9dd402599859c2b4ad3d3c45cdf6ffab26b8a94

  • SHA512

    b7c4b698e03fade2da044b747925ffb9ca61f0d813e6cc0bfeaa1cca81455bda4b82243bd6cc742d2d80e51f6e5d8ecc97b6e66846ea65c7aa5ea19b8a86a0e3

  • SSDEEP

    12288:zAbu3fQ+thk6EzmbfgYO37TFDCRI1bw4o4sWIpt+TclaTY81UNMm360G8:zAbuPPEzqfsRCRIlwE+6cv81U/HG8

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\db0ced416a0bd3d2a8b181f8d9dd402599859c2b4ad3d3c45cdf6ffab26b8a94.exe
    "C:\Users\Admin\AppData\Local\Temp\db0ced416a0bd3d2a8b181f8d9dd402599859c2b4ad3d3c45cdf6ffab26b8a94.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:904
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2000
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1748
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1200
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:844
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:616
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1112
        • 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:1064
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1632
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1744
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1296
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:304
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1068

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e4a5823950b03b997001b01cd137f97

            SHA1

            debe0ea08adb603a85e154e7b67296a87baf7b52

            SHA256

            ccbfad22d93fe175ca67557835c74c4ba971b461988af270e93dd2e21883de78

            SHA512

            99c2018638683a5e2997852306c3d29b4e5c81ec073dda0f4938baef9bfbecdefaa5f4ed574d478bc55a623b406fac6f3b1d1b202e37b091dc681715423e78cc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            440fad2879df2b5d05514cfdfa22fd60

            SHA1

            177eb380f604582e7bab89af48e99a6343eb8185

            SHA256

            f999c57efd0d03d58181bfbba9b340536c2b6032f2b042bbd3fa1b3aae0c36c5

            SHA512

            5dade87c6ba6ed0c6227afb704d4246c6aac952171a4419c520cf8768a252cbbce106a13b00450c99dfd49b4ca6642573002907c5bdc75c8a1c29e1688968c4c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            18a9a580040705a7a0d84005687bb149

            SHA1

            382e0cdfe0b223c598b6b8852aa9ba1a81f03999

            SHA256

            a5619daa6c986a3604419491efcbfbaa4d10907a90d0605fb2e6b9ff6d3f9b3b

            SHA512

            c2f8aa59d7ea58415bd2ca1361b4c290a900994ddf389c9a33de44d8ef801f7fdeb72735c0b93ce8a6c327b26a20736a4f2b265c4540d91b5ab87f51b23ce20d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1f7ce98704a2717af53cf523e37bf22

            SHA1

            644efd85fd6c5235b2936b02ba3aa3185c57f81e

            SHA256

            17b7d3081677502197ddb534dabf8d7dab48349d0e34ae94a20c927a86a7caf9

            SHA512

            5082086c2334bd1dc3ac9cf43deacf18ac9afce6f57fbd86ba932d97f09d2b032deb5c2f7a17e91812374d36e02840996819db9fe1236bee23c1f84c8beaf904

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1f7ce98704a2717af53cf523e37bf22

            SHA1

            644efd85fd6c5235b2936b02ba3aa3185c57f81e

            SHA256

            17b7d3081677502197ddb534dabf8d7dab48349d0e34ae94a20c927a86a7caf9

            SHA512

            5082086c2334bd1dc3ac9cf43deacf18ac9afce6f57fbd86ba932d97f09d2b032deb5c2f7a17e91812374d36e02840996819db9fe1236bee23c1f84c8beaf904

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80adadfeac06bc90c8feecb426969333

            SHA1

            fe1ecd3e0edb240f8438e38df7675af8e81049a7

            SHA256

            5abca40a8426400e283ce1427645b61d48149e6e743b1b5ec8640543b4883483

            SHA512

            d753499e03a9706d71af36227bd4ade136fd1520f9628e7fe1e503913cfa99e4b2147662e0901f0e2f530b11c169b727fe8f86ad428112111d532a217c7e596a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80adadfeac06bc90c8feecb426969333

            SHA1

            fe1ecd3e0edb240f8438e38df7675af8e81049a7

            SHA256

            5abca40a8426400e283ce1427645b61d48149e6e743b1b5ec8640543b4883483

            SHA512

            d753499e03a9706d71af36227bd4ade136fd1520f9628e7fe1e503913cfa99e4b2147662e0901f0e2f530b11c169b727fe8f86ad428112111d532a217c7e596a

          • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd5D01.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e4a5823950b03b997001b01cd137f97

            SHA1

            debe0ea08adb603a85e154e7b67296a87baf7b52

            SHA256

            ccbfad22d93fe175ca67557835c74c4ba971b461988af270e93dd2e21883de78

            SHA512

            99c2018638683a5e2997852306c3d29b4e5c81ec073dda0f4938baef9bfbecdefaa5f4ed574d478bc55a623b406fac6f3b1d1b202e37b091dc681715423e78cc

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e4a5823950b03b997001b01cd137f97

            SHA1

            debe0ea08adb603a85e154e7b67296a87baf7b52

            SHA256

            ccbfad22d93fe175ca67557835c74c4ba971b461988af270e93dd2e21883de78

            SHA512

            99c2018638683a5e2997852306c3d29b4e5c81ec073dda0f4938baef9bfbecdefaa5f4ed574d478bc55a623b406fac6f3b1d1b202e37b091dc681715423e78cc

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e4a5823950b03b997001b01cd137f97

            SHA1

            debe0ea08adb603a85e154e7b67296a87baf7b52

            SHA256

            ccbfad22d93fe175ca67557835c74c4ba971b461988af270e93dd2e21883de78

            SHA512

            99c2018638683a5e2997852306c3d29b4e5c81ec073dda0f4938baef9bfbecdefaa5f4ed574d478bc55a623b406fac6f3b1d1b202e37b091dc681715423e78cc

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            440fad2879df2b5d05514cfdfa22fd60

            SHA1

            177eb380f604582e7bab89af48e99a6343eb8185

            SHA256

            f999c57efd0d03d58181bfbba9b340536c2b6032f2b042bbd3fa1b3aae0c36c5

            SHA512

            5dade87c6ba6ed0c6227afb704d4246c6aac952171a4419c520cf8768a252cbbce106a13b00450c99dfd49b4ca6642573002907c5bdc75c8a1c29e1688968c4c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            440fad2879df2b5d05514cfdfa22fd60

            SHA1

            177eb380f604582e7bab89af48e99a6343eb8185

            SHA256

            f999c57efd0d03d58181bfbba9b340536c2b6032f2b042bbd3fa1b3aae0c36c5

            SHA512

            5dade87c6ba6ed0c6227afb704d4246c6aac952171a4419c520cf8768a252cbbce106a13b00450c99dfd49b4ca6642573002907c5bdc75c8a1c29e1688968c4c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            18a9a580040705a7a0d84005687bb149

            SHA1

            382e0cdfe0b223c598b6b8852aa9ba1a81f03999

            SHA256

            a5619daa6c986a3604419491efcbfbaa4d10907a90d0605fb2e6b9ff6d3f9b3b

            SHA512

            c2f8aa59d7ea58415bd2ca1361b4c290a900994ddf389c9a33de44d8ef801f7fdeb72735c0b93ce8a6c327b26a20736a4f2b265c4540d91b5ab87f51b23ce20d

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a1f7ce98704a2717af53cf523e37bf22

            SHA1

            644efd85fd6c5235b2936b02ba3aa3185c57f81e

            SHA256

            17b7d3081677502197ddb534dabf8d7dab48349d0e34ae94a20c927a86a7caf9

            SHA512

            5082086c2334bd1dc3ac9cf43deacf18ac9afce6f57fbd86ba932d97f09d2b032deb5c2f7a17e91812374d36e02840996819db9fe1236bee23c1f84c8beaf904

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80adadfeac06bc90c8feecb426969333

            SHA1

            fe1ecd3e0edb240f8438e38df7675af8e81049a7

            SHA256

            5abca40a8426400e283ce1427645b61d48149e6e743b1b5ec8640543b4883483

            SHA512

            d753499e03a9706d71af36227bd4ade136fd1520f9628e7fe1e503913cfa99e4b2147662e0901f0e2f530b11c169b727fe8f86ad428112111d532a217c7e596a

          • memory/616-64-0x0000000000000000-mapping.dmp

          • memory/844-61-0x0000000000000000-mapping.dmp

          • memory/904-62-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/904-54-0x0000000075BA1000-0x0000000075BA3000-memory.dmp

            Filesize

            8KB

          • memory/904-90-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1064-80-0x0000000000000000-mapping.dmp

          • memory/1112-70-0x0000000000000000-mapping.dmp

          • memory/1200-60-0x0000000000000000-mapping.dmp

          • memory/1296-87-0x0000000000000000-mapping.dmp

          • memory/1528-76-0x0000000000000000-mapping.dmp

          • memory/1632-81-0x0000000000000000-mapping.dmp

          • memory/1744-86-0x0000000000000000-mapping.dmp

          • memory/1748-58-0x0000000000000000-mapping.dmp

          • memory/2000-57-0x0000000000000000-mapping.dmp