Analysis

  • max time kernel
    45s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    7f68e904a9ab517a6524f9575227a7a5be9de0e07d4a54cc6f70680e5013f780.exe

  • Size

    603KB

  • MD5

    b53edfb4dff9fc27eae0761ab2128dae

  • SHA1

    72746327aa6b7316dcc724102733a4636f7e6380

  • SHA256

    7f68e904a9ab517a6524f9575227a7a5be9de0e07d4a54cc6f70680e5013f780

  • SHA512

    ba3ac65f77413ed405f9802d5b5dfb553ae493c837da51da08ff8ea6812e0b00f95d1821b4018b6c6199e1ab292d31774b46be8a410ec46733d6e8a0492bd5fd

  • SSDEEP

    12288:RIny5DYTMIn15Rs+EHwq/QIO07NeB3G3P9K2LAQSR4M/nlc9Jj:tUTMM15RLEQq4dvKJTpMe

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\7f68e904a9ab517a6524f9575227a7a5be9de0e07d4a54cc6f70680e5013f780.exe
    "C:\Users\Admin\AppData\Local\Temp\7f68e904a9ab517a6524f9575227a7a5be9de0e07d4a54cc6f70680e5013f780.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:1468
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1060
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:572
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1340
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1988
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1108
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1552
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1392
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1684
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1816
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:924
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1344
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1932

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            886e5f8a92bb3da862645ff83a9e670a

            SHA1

            3cecd01e7cde6dda19e950f8a730751e4ab09a88

            SHA256

            b8f04653b2ccabd1137e980241ba8c71eef4ccf07d8c911d7c90d13b73f53376

            SHA512

            4b9cac72755a31b60e2d2fda2bfca5c4c934cdbdfed3945b90eb7b536d06058a9dc0db8b2dba23f00a25e3c260587dd588e3a0278d9ee175ac984ee6f5a5eca3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            18a01efecc8c20d1ad76584aeef881d9

            SHA1

            4a86a99f806d391320847432435c7c1b73c86440

            SHA256

            74f84a2e7bdb064566ea0268a72ca6bb2976290b6f514de9bb39d28a35f0a8a0

            SHA512

            0ff66789129599423a30d9682a059743422d836815b2b06735fa180fdbc29bb31d9f98d2bd6898b3726df919d42d1c4df5b94721b3f41af5bbb2999ac561aa99

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            9ea6ff2d7c8d450cfe024384750282c0

            SHA1

            a6e2b0de3a4332988f404364c4a67a29fa05e6e3

            SHA256

            6e25bef62412f7a97702d1f8c6ff7e1763469c59bd909e1644a2701172def45d

            SHA512

            94a1e9408c9d0718a4cf0c3e99061002da0d0d54913923f18d910b80399460ff331cc343cbbc10387aa34d100b6eab2aec5f516b99d5e49ceca59aa0ff3f1301

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b6717587ccc4f7b87ef1b9eda33979ee

            SHA1

            8af1b6200d684aed4800d0ec30f1fb2540e8e207

            SHA256

            eef4f48d11a526d9a2597149d336bfcba12b9791484b9b26f74733d624b71129

            SHA512

            44bece52f299233bd9134f1fcbc4152797e097d7253562e277e48543fe057e8fa79061f2927ade6afe853995fbe38597cb4dcfe1adae6ec2d927c7b385012e1a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b6717587ccc4f7b87ef1b9eda33979ee

            SHA1

            8af1b6200d684aed4800d0ec30f1fb2540e8e207

            SHA256

            eef4f48d11a526d9a2597149d336bfcba12b9791484b9b26f74733d624b71129

            SHA512

            44bece52f299233bd9134f1fcbc4152797e097d7253562e277e48543fe057e8fa79061f2927ade6afe853995fbe38597cb4dcfe1adae6ec2d927c7b385012e1a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c352856ef16a4709f04dd5333c6324fa

            SHA1

            5e44d62e4b498ad08f84816a437f4393df289738

            SHA256

            d4d8a8e461d1ff22adf8551bdf25992b4eb75f263aaa3009ed2bb0ce5043676a

            SHA512

            99df07da518aad17da8d29a79c5ab14ed1c64cb593def5e217a92f84c418277c3370c01fc8eb1e621ba3fab768fe158e2e0fa1fdc7ba128566f640216bdedb1c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c352856ef16a4709f04dd5333c6324fa

            SHA1

            5e44d62e4b498ad08f84816a437f4393df289738

            SHA256

            d4d8a8e461d1ff22adf8551bdf25992b4eb75f263aaa3009ed2bb0ce5043676a

            SHA512

            99df07da518aad17da8d29a79c5ab14ed1c64cb593def5e217a92f84c418277c3370c01fc8eb1e621ba3fab768fe158e2e0fa1fdc7ba128566f640216bdedb1c

          • \Users\Admin\AppData\Local\Temp\nsoAB8E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoAB8E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAB8E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAB8E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAB8E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            886e5f8a92bb3da862645ff83a9e670a

            SHA1

            3cecd01e7cde6dda19e950f8a730751e4ab09a88

            SHA256

            b8f04653b2ccabd1137e980241ba8c71eef4ccf07d8c911d7c90d13b73f53376

            SHA512

            4b9cac72755a31b60e2d2fda2bfca5c4c934cdbdfed3945b90eb7b536d06058a9dc0db8b2dba23f00a25e3c260587dd588e3a0278d9ee175ac984ee6f5a5eca3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            886e5f8a92bb3da862645ff83a9e670a

            SHA1

            3cecd01e7cde6dda19e950f8a730751e4ab09a88

            SHA256

            b8f04653b2ccabd1137e980241ba8c71eef4ccf07d8c911d7c90d13b73f53376

            SHA512

            4b9cac72755a31b60e2d2fda2bfca5c4c934cdbdfed3945b90eb7b536d06058a9dc0db8b2dba23f00a25e3c260587dd588e3a0278d9ee175ac984ee6f5a5eca3

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            886e5f8a92bb3da862645ff83a9e670a

            SHA1

            3cecd01e7cde6dda19e950f8a730751e4ab09a88

            SHA256

            b8f04653b2ccabd1137e980241ba8c71eef4ccf07d8c911d7c90d13b73f53376

            SHA512

            4b9cac72755a31b60e2d2fda2bfca5c4c934cdbdfed3945b90eb7b536d06058a9dc0db8b2dba23f00a25e3c260587dd588e3a0278d9ee175ac984ee6f5a5eca3

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            18a01efecc8c20d1ad76584aeef881d9

            SHA1

            4a86a99f806d391320847432435c7c1b73c86440

            SHA256

            74f84a2e7bdb064566ea0268a72ca6bb2976290b6f514de9bb39d28a35f0a8a0

            SHA512

            0ff66789129599423a30d9682a059743422d836815b2b06735fa180fdbc29bb31d9f98d2bd6898b3726df919d42d1c4df5b94721b3f41af5bbb2999ac561aa99

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            18a01efecc8c20d1ad76584aeef881d9

            SHA1

            4a86a99f806d391320847432435c7c1b73c86440

            SHA256

            74f84a2e7bdb064566ea0268a72ca6bb2976290b6f514de9bb39d28a35f0a8a0

            SHA512

            0ff66789129599423a30d9682a059743422d836815b2b06735fa180fdbc29bb31d9f98d2bd6898b3726df919d42d1c4df5b94721b3f41af5bbb2999ac561aa99

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            9ea6ff2d7c8d450cfe024384750282c0

            SHA1

            a6e2b0de3a4332988f404364c4a67a29fa05e6e3

            SHA256

            6e25bef62412f7a97702d1f8c6ff7e1763469c59bd909e1644a2701172def45d

            SHA512

            94a1e9408c9d0718a4cf0c3e99061002da0d0d54913923f18d910b80399460ff331cc343cbbc10387aa34d100b6eab2aec5f516b99d5e49ceca59aa0ff3f1301

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b6717587ccc4f7b87ef1b9eda33979ee

            SHA1

            8af1b6200d684aed4800d0ec30f1fb2540e8e207

            SHA256

            eef4f48d11a526d9a2597149d336bfcba12b9791484b9b26f74733d624b71129

            SHA512

            44bece52f299233bd9134f1fcbc4152797e097d7253562e277e48543fe057e8fa79061f2927ade6afe853995fbe38597cb4dcfe1adae6ec2d927c7b385012e1a

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c352856ef16a4709f04dd5333c6324fa

            SHA1

            5e44d62e4b498ad08f84816a437f4393df289738

            SHA256

            d4d8a8e461d1ff22adf8551bdf25992b4eb75f263aaa3009ed2bb0ce5043676a

            SHA512

            99df07da518aad17da8d29a79c5ab14ed1c64cb593def5e217a92f84c418277c3370c01fc8eb1e621ba3fab768fe158e2e0fa1fdc7ba128566f640216bdedb1c

          • memory/572-58-0x0000000000000000-mapping.dmp

          • memory/924-86-0x0000000000000000-mapping.dmp

          • memory/1060-57-0x0000000000000000-mapping.dmp

          • memory/1108-64-0x0000000000000000-mapping.dmp

          • memory/1340-60-0x0000000000000000-mapping.dmp

          • memory/1344-87-0x0000000000000000-mapping.dmp

          • memory/1392-76-0x0000000000000000-mapping.dmp

          • memory/1468-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1468-54-0x00000000760B1000-0x00000000760B3000-memory.dmp

            Filesize

            8KB

          • memory/1468-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1552-70-0x0000000000000000-mapping.dmp

          • memory/1684-80-0x0000000000000000-mapping.dmp

          • memory/1816-81-0x0000000000000000-mapping.dmp

          • memory/1988-61-0x0000000000000000-mapping.dmp