Analysis

  • max time kernel
    42s
  • 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 10:18

General

  • Target

    9cc6bd355cf7fcc24f44987cf012ce5df514ae391a69a75d6a5cdc82304546e6.exe

  • Size

    603KB

  • MD5

    6dfc63ca23fe256039a5d190bac80cad

  • SHA1

    06e2464ef8f0abe407f38111d20c2c136ce24408

  • SHA256

    9cc6bd355cf7fcc24f44987cf012ce5df514ae391a69a75d6a5cdc82304546e6

  • SHA512

    ddf37bf643a5274f2d99821d1eff2372e154e5a3da1947fb9c758540789d57ce9d209b838ad837209fb4f64bc0e4d93393eff1fe9f3e10a9ca327ee01ea2c3ec

  • SSDEEP

    12288:BIny5DYTfIjFwsoGaGA34jGskaLZsaBFaWJF8s1t1dtswXN7Rc:9UTfUWOaGA3MVVLjBdF8ct1XXN7K

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\9cc6bd355cf7fcc24f44987cf012ce5df514ae391a69a75d6a5cdc82304546e6.exe
    "C:\Users\Admin\AppData\Local\Temp\9cc6bd355cf7fcc24f44987cf012ce5df514ae391a69a75d6a5cdc82304546e6.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:1088
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1108
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1976
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2040
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1732
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1916
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1180
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1356
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:472
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1532
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1828
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1872
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1100

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33744e5ccd42f9e4b11460d50891a3ce

            SHA1

            cecdc01594fb9055f22c7d5606d1b81b4aa73c9e

            SHA256

            a4f4ebf227093fde6235a24d9f5c42440c1835100c65d9d91b537a0a3a9d2571

            SHA512

            ba90d295aa48d976d594650d775836cb9701a9a7e829f08f8b99cf29764396beb2c04fc7c50824478c180f8a64794e9e9a64a5c5f405ae40b025a50f26cf0188

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            11e5e4a5a3d1f317cdb432cc78e22527

            SHA1

            81986920344896941ad2a8e48f7bad301aed3461

            SHA256

            9140f0c478eeee2952b00561129d60743af113d40b83002042b2fbe7a4462b85

            SHA512

            9bfb95ec64e00e42d55373ea543cd6ec831e9944001ddbd9fef7b30cb59e1bd63c2634a34eacc39237a5ac9d08b321c12c1b761e8c2559b2b779214f8a44b27b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            13170289fb0cad4d154e1a2f1775cc6c

            SHA1

            471915ddc1dcb094a9af5a66fd54f40b1e577cc7

            SHA256

            4466ce4b4ac0ff9321352dbea56b3fab21c9db97d6c187596039479bac0ee25c

            SHA512

            e2cebdf75b8b59e0695ada23192f55e10cbab6366e45d9ccee0b6d291d27fbfe9d5eef2a6dd0d8efc018f80120e94299996426fef4a54ab589ef460b866d0dbd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            37ca07880eec79b278f23ad3c198ce90

            SHA1

            6517fbe88f638e77d9ff82367d435c0a50bb5cf2

            SHA256

            6b0c68a2a57247c9b364b80e84c74d9ebd20e7ac8af1073a24427684669ad0b2

            SHA512

            aad93a458f7cf44a155f5bb8105878b6a861628c268aceb4263b8f788575d20bcaa3594166ba4ccbadc2e85ccd86a70fc74811082e0f018a1e893875a58c4803

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            37ca07880eec79b278f23ad3c198ce90

            SHA1

            6517fbe88f638e77d9ff82367d435c0a50bb5cf2

            SHA256

            6b0c68a2a57247c9b364b80e84c74d9ebd20e7ac8af1073a24427684669ad0b2

            SHA512

            aad93a458f7cf44a155f5bb8105878b6a861628c268aceb4263b8f788575d20bcaa3594166ba4ccbadc2e85ccd86a70fc74811082e0f018a1e893875a58c4803

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9a513065f3f00e2815a2f392f3e5293b

            SHA1

            d4c327e5f18e84fc55de90331393ba97293593f3

            SHA256

            81afbf4af9f7ba89e28bbc2ee87e391d462dfdd8930c52ec2216e03861c4ec2f

            SHA512

            4f6fe5a771587d19acfd99f486d19bd8aaad76d06bfed780226660c99583c5d8a18d1c3011e6c71d34e6220ad33e8a95a8500aa9b743f1b76f48e4ad21495f2f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9a513065f3f00e2815a2f392f3e5293b

            SHA1

            d4c327e5f18e84fc55de90331393ba97293593f3

            SHA256

            81afbf4af9f7ba89e28bbc2ee87e391d462dfdd8930c52ec2216e03861c4ec2f

            SHA512

            4f6fe5a771587d19acfd99f486d19bd8aaad76d06bfed780226660c99583c5d8a18d1c3011e6c71d34e6220ad33e8a95a8500aa9b743f1b76f48e4ad21495f2f

          • \Users\Admin\AppData\Local\Temp\nstFDB3.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstFDB3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstFDB3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstFDB3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstFDB3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33744e5ccd42f9e4b11460d50891a3ce

            SHA1

            cecdc01594fb9055f22c7d5606d1b81b4aa73c9e

            SHA256

            a4f4ebf227093fde6235a24d9f5c42440c1835100c65d9d91b537a0a3a9d2571

            SHA512

            ba90d295aa48d976d594650d775836cb9701a9a7e829f08f8b99cf29764396beb2c04fc7c50824478c180f8a64794e9e9a64a5c5f405ae40b025a50f26cf0188

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33744e5ccd42f9e4b11460d50891a3ce

            SHA1

            cecdc01594fb9055f22c7d5606d1b81b4aa73c9e

            SHA256

            a4f4ebf227093fde6235a24d9f5c42440c1835100c65d9d91b537a0a3a9d2571

            SHA512

            ba90d295aa48d976d594650d775836cb9701a9a7e829f08f8b99cf29764396beb2c04fc7c50824478c180f8a64794e9e9a64a5c5f405ae40b025a50f26cf0188

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            33744e5ccd42f9e4b11460d50891a3ce

            SHA1

            cecdc01594fb9055f22c7d5606d1b81b4aa73c9e

            SHA256

            a4f4ebf227093fde6235a24d9f5c42440c1835100c65d9d91b537a0a3a9d2571

            SHA512

            ba90d295aa48d976d594650d775836cb9701a9a7e829f08f8b99cf29764396beb2c04fc7c50824478c180f8a64794e9e9a64a5c5f405ae40b025a50f26cf0188

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            11e5e4a5a3d1f317cdb432cc78e22527

            SHA1

            81986920344896941ad2a8e48f7bad301aed3461

            SHA256

            9140f0c478eeee2952b00561129d60743af113d40b83002042b2fbe7a4462b85

            SHA512

            9bfb95ec64e00e42d55373ea543cd6ec831e9944001ddbd9fef7b30cb59e1bd63c2634a34eacc39237a5ac9d08b321c12c1b761e8c2559b2b779214f8a44b27b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            11e5e4a5a3d1f317cdb432cc78e22527

            SHA1

            81986920344896941ad2a8e48f7bad301aed3461

            SHA256

            9140f0c478eeee2952b00561129d60743af113d40b83002042b2fbe7a4462b85

            SHA512

            9bfb95ec64e00e42d55373ea543cd6ec831e9944001ddbd9fef7b30cb59e1bd63c2634a34eacc39237a5ac9d08b321c12c1b761e8c2559b2b779214f8a44b27b

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            13170289fb0cad4d154e1a2f1775cc6c

            SHA1

            471915ddc1dcb094a9af5a66fd54f40b1e577cc7

            SHA256

            4466ce4b4ac0ff9321352dbea56b3fab21c9db97d6c187596039479bac0ee25c

            SHA512

            e2cebdf75b8b59e0695ada23192f55e10cbab6366e45d9ccee0b6d291d27fbfe9d5eef2a6dd0d8efc018f80120e94299996426fef4a54ab589ef460b866d0dbd

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            37ca07880eec79b278f23ad3c198ce90

            SHA1

            6517fbe88f638e77d9ff82367d435c0a50bb5cf2

            SHA256

            6b0c68a2a57247c9b364b80e84c74d9ebd20e7ac8af1073a24427684669ad0b2

            SHA512

            aad93a458f7cf44a155f5bb8105878b6a861628c268aceb4263b8f788575d20bcaa3594166ba4ccbadc2e85ccd86a70fc74811082e0f018a1e893875a58c4803

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            9a513065f3f00e2815a2f392f3e5293b

            SHA1

            d4c327e5f18e84fc55de90331393ba97293593f3

            SHA256

            81afbf4af9f7ba89e28bbc2ee87e391d462dfdd8930c52ec2216e03861c4ec2f

            SHA512

            4f6fe5a771587d19acfd99f486d19bd8aaad76d06bfed780226660c99583c5d8a18d1c3011e6c71d34e6220ad33e8a95a8500aa9b743f1b76f48e4ad21495f2f

          • memory/472-81-0x0000000000000000-mapping.dmp

          • memory/1088-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1088-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1088-54-0x0000000075241000-0x0000000075243000-memory.dmp

            Filesize

            8KB

          • memory/1108-58-0x0000000000000000-mapping.dmp

          • memory/1180-76-0x0000000000000000-mapping.dmp

          • memory/1356-80-0x0000000000000000-mapping.dmp

          • memory/1532-86-0x0000000000000000-mapping.dmp

          • memory/1732-64-0x0000000000000000-mapping.dmp

          • memory/1788-57-0x0000000000000000-mapping.dmp

          • memory/1828-87-0x0000000000000000-mapping.dmp

          • memory/1916-70-0x0000000000000000-mapping.dmp

          • memory/1976-61-0x0000000000000000-mapping.dmp

          • memory/2040-62-0x0000000000000000-mapping.dmp