Analysis

  • max time kernel
    37s
  • max time network
    134s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:19

General

  • Target

    96376cb26fd6e84e0cd9fc7ccd8035081f2c1a55b1b98b78730e6e221744342c.exe

  • Size

    603KB

  • MD5

    fb904c4f4c7915da3a24298b4e50ee96

  • SHA1

    bc838935e2473bb7d27e51bbb5ca8a916c68d2f9

  • SHA256

    96376cb26fd6e84e0cd9fc7ccd8035081f2c1a55b1b98b78730e6e221744342c

  • SHA512

    eac7c5f8d6520c70b0ece43a61cd500eee6e496830e1ef6c21b25702bb3e5bb77dc4b0e7ff5eb7e22d477ae98e429cb4be020f412eb16b69bc9c26bf4b55446d

  • SSDEEP

    12288:DIny5DYTMIXoqpwr1GLJhe2/2HCgANQxU3hyx5/z:LUTMwoqpw8JthA9

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\96376cb26fd6e84e0cd9fc7ccd8035081f2c1a55b1b98b78730e6e221744342c.exe
    "C:\Users\Admin\AppData\Local\Temp\96376cb26fd6e84e0cd9fc7ccd8035081f2c1a55b1b98b78730e6e221744342c.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:1344
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1272
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:728
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1944
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:956
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1928
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1616
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:992
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:916
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:820
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1540
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1760
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1500
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1844

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fda5003cee3fe784ffc5820e7a7995c3

            SHA1

            be63a9b5ff67925c71cb6d7cfd3bb877b8ad83d8

            SHA256

            67acb5a64b3ecf535ebfaa92d68a543d07420804d6a2c07ce5210957d6b4393d

            SHA512

            f6027463bd2415e4ceacfb77f1800e609d5b7fcb61cf72ccf228613c0a9015113db839b51454009a36236fb2da879d836d7762ccef312e55663ae465ac084f72

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            cf8e73affea3f1cef26a66c82c10a9da

            SHA1

            fb40dd2a392d62b6b90ec116966c34b8d2a149c9

            SHA256

            c32c81d393ff13fd986f56b35b8c9d5eba80e346553f8d5ae2146398752bf08a

            SHA512

            80f4378e8676796a2abaf653351eff8c14b58e9d18fad9bae252820ccad00e7b70c504e0b7997c6e05556007aa713541e94bbce77286cc28d0f2cba295f0f9a7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b959b5252ae4aedfdf6dfd9f20f13028

            SHA1

            0b36c616a0316cfd91ca2724cfd19fe53a416450

            SHA256

            7d8dd4dc72456697beb385f01e00dc61484c15140c326397f4d2409d05f99c08

            SHA512

            3d56a5b8f82e956867eb71696895357ad839137b5e1193a63d68433dd3bde2cfe6d1489330be86b7aebe15369e348dd6dced65877fad91926b52f93c6bd8e0f3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f2715206032fb7e48bbd34346243078b

            SHA1

            e2612e8c3e767cd7832bda8875610f0d751035ae

            SHA256

            071815ce0384f029d7ae6c5fb8202a7456cf3422a8a6ef0343d327b6739becc8

            SHA512

            e91543b76d9f20ee36445406643ce84aee6aee49edac3cd7afdb27fe203f91540c3eebbe9c82bc34c2e07f641c7a35d2625ccbc8c379065f7b6930209080b587

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f2715206032fb7e48bbd34346243078b

            SHA1

            e2612e8c3e767cd7832bda8875610f0d751035ae

            SHA256

            071815ce0384f029d7ae6c5fb8202a7456cf3422a8a6ef0343d327b6739becc8

            SHA512

            e91543b76d9f20ee36445406643ce84aee6aee49edac3cd7afdb27fe203f91540c3eebbe9c82bc34c2e07f641c7a35d2625ccbc8c379065f7b6930209080b587

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cb151f76c4677e5094738685746f3f6

            SHA1

            9bf92ec6d295eaf0a906ba09a87bbfb9801de4f0

            SHA256

            deede0a243c6d5da8dee15e37ed1ec656ef9dfdf5acc8af754ffcb9f339f1425

            SHA512

            23524509259dfa977a8546dbc00593a7fb316345aada1d3b3c8b7db001a57f1f156deae56963071a47e65f8a3bfa6b632a8e604930c0693fb10c0ae0bcd27102

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cb151f76c4677e5094738685746f3f6

            SHA1

            9bf92ec6d295eaf0a906ba09a87bbfb9801de4f0

            SHA256

            deede0a243c6d5da8dee15e37ed1ec656ef9dfdf5acc8af754ffcb9f339f1425

            SHA512

            23524509259dfa977a8546dbc00593a7fb316345aada1d3b3c8b7db001a57f1f156deae56963071a47e65f8a3bfa6b632a8e604930c0693fb10c0ae0bcd27102

          • \Users\Admin\AppData\Local\Temp\nsy7764.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy7764.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy7764.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy7764.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy7764.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fda5003cee3fe784ffc5820e7a7995c3

            SHA1

            be63a9b5ff67925c71cb6d7cfd3bb877b8ad83d8

            SHA256

            67acb5a64b3ecf535ebfaa92d68a543d07420804d6a2c07ce5210957d6b4393d

            SHA512

            f6027463bd2415e4ceacfb77f1800e609d5b7fcb61cf72ccf228613c0a9015113db839b51454009a36236fb2da879d836d7762ccef312e55663ae465ac084f72

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fda5003cee3fe784ffc5820e7a7995c3

            SHA1

            be63a9b5ff67925c71cb6d7cfd3bb877b8ad83d8

            SHA256

            67acb5a64b3ecf535ebfaa92d68a543d07420804d6a2c07ce5210957d6b4393d

            SHA512

            f6027463bd2415e4ceacfb77f1800e609d5b7fcb61cf72ccf228613c0a9015113db839b51454009a36236fb2da879d836d7762ccef312e55663ae465ac084f72

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fda5003cee3fe784ffc5820e7a7995c3

            SHA1

            be63a9b5ff67925c71cb6d7cfd3bb877b8ad83d8

            SHA256

            67acb5a64b3ecf535ebfaa92d68a543d07420804d6a2c07ce5210957d6b4393d

            SHA512

            f6027463bd2415e4ceacfb77f1800e609d5b7fcb61cf72ccf228613c0a9015113db839b51454009a36236fb2da879d836d7762ccef312e55663ae465ac084f72

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            cf8e73affea3f1cef26a66c82c10a9da

            SHA1

            fb40dd2a392d62b6b90ec116966c34b8d2a149c9

            SHA256

            c32c81d393ff13fd986f56b35b8c9d5eba80e346553f8d5ae2146398752bf08a

            SHA512

            80f4378e8676796a2abaf653351eff8c14b58e9d18fad9bae252820ccad00e7b70c504e0b7997c6e05556007aa713541e94bbce77286cc28d0f2cba295f0f9a7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            cf8e73affea3f1cef26a66c82c10a9da

            SHA1

            fb40dd2a392d62b6b90ec116966c34b8d2a149c9

            SHA256

            c32c81d393ff13fd986f56b35b8c9d5eba80e346553f8d5ae2146398752bf08a

            SHA512

            80f4378e8676796a2abaf653351eff8c14b58e9d18fad9bae252820ccad00e7b70c504e0b7997c6e05556007aa713541e94bbce77286cc28d0f2cba295f0f9a7

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b959b5252ae4aedfdf6dfd9f20f13028

            SHA1

            0b36c616a0316cfd91ca2724cfd19fe53a416450

            SHA256

            7d8dd4dc72456697beb385f01e00dc61484c15140c326397f4d2409d05f99c08

            SHA512

            3d56a5b8f82e956867eb71696895357ad839137b5e1193a63d68433dd3bde2cfe6d1489330be86b7aebe15369e348dd6dced65877fad91926b52f93c6bd8e0f3

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f2715206032fb7e48bbd34346243078b

            SHA1

            e2612e8c3e767cd7832bda8875610f0d751035ae

            SHA256

            071815ce0384f029d7ae6c5fb8202a7456cf3422a8a6ef0343d327b6739becc8

            SHA512

            e91543b76d9f20ee36445406643ce84aee6aee49edac3cd7afdb27fe203f91540c3eebbe9c82bc34c2e07f641c7a35d2625ccbc8c379065f7b6930209080b587

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cb151f76c4677e5094738685746f3f6

            SHA1

            9bf92ec6d295eaf0a906ba09a87bbfb9801de4f0

            SHA256

            deede0a243c6d5da8dee15e37ed1ec656ef9dfdf5acc8af754ffcb9f339f1425

            SHA512

            23524509259dfa977a8546dbc00593a7fb316345aada1d3b3c8b7db001a57f1f156deae56963071a47e65f8a3bfa6b632a8e604930c0693fb10c0ae0bcd27102

          • memory/728-59-0x0000000000000000-mapping.dmp

          • memory/820-81-0x0000000000000000-mapping.dmp

          • memory/916-80-0x0000000000000000-mapping.dmp

          • memory/956-62-0x0000000000000000-mapping.dmp

          • memory/992-76-0x0000000000000000-mapping.dmp

          • memory/1272-58-0x0000000000000000-mapping.dmp

          • memory/1344-54-0x0000000074F41000-0x0000000074F43000-memory.dmp

            Filesize

            8KB

          • memory/1344-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1344-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1540-86-0x0000000000000000-mapping.dmp

          • memory/1616-70-0x0000000000000000-mapping.dmp

          • memory/1760-87-0x0000000000000000-mapping.dmp

          • memory/1928-64-0x0000000000000000-mapping.dmp

          • memory/1944-61-0x0000000000000000-mapping.dmp