Analysis

  • max time kernel
    41s
  • 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 10:23

General

  • Target

    72eafe040af82c52d99106b9584a749f264392170b3a6fb198b705ca0ec4e982.exe

  • Size

    602KB

  • MD5

    ffd361743b0434e5946464e81ec349d1

  • SHA1

    45cbca5201da0712b949f64780b6ac2e8383aa95

  • SHA256

    72eafe040af82c52d99106b9584a749f264392170b3a6fb198b705ca0ec4e982

  • SHA512

    db42dbed72a7e1c671e171620d8ff565bc7c8521201e95336a109bdfa7d369df0e86bcacd672b8541707a503df821721636876b712cae0f4356f30506259a4a1

  • SSDEEP

    12288:fIny5DYTZIYSUch8j/D4xIeCryHgYuWAUWD8LSiBXD/QBnnC:HUTZzSP8j/cIjEjuZUQCSSzQC

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\72eafe040af82c52d99106b9584a749f264392170b3a6fb198b705ca0ec4e982.exe
    "C:\Users\Admin\AppData\Local\Temp\72eafe040af82c52d99106b9584a749f264392170b3a6fb198b705ca0ec4e982.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:1968
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1760
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1768
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1156
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:272
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2028
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:384
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1664
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1920
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:360
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1476
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1196

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1d7d6222a5dc81478481198b8d3e5006

            SHA1

            5853cce712aae0067e2c8eb3c462d0c3778df501

            SHA256

            fc27100b8427ac9ce604ea8faba9dfc689335fc3291b9879dd1959f24fefb2ae

            SHA512

            32e470e15f2b6843c455716ffff965cbcb0f8ed9fff87201a5dc8ffe2eb93f493d314e44dc20ac8a207af81b463c3e1c27c3e552886d7115e4d98c22a5da4fad

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            baaf0bb2223a01c6c554bd24c49dcc1c

            SHA1

            01b2f3d97fded0c45ce31e98aa894b60fcf0a7dc

            SHA256

            530a036b589e9c04e187ad2ca910d3b7ddb6f2e3b479dee6f08d62e4dc8c7094

            SHA512

            e0630320be0a14e25730b026911760d9cce9cc8bcd312a413a640585cb0806064ffb5f72056b94e88bd1f5eeda366c0198e6b37630728548ff9ab0dd522853f2

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            12ca8395aeedf2a96a191d0a04172707

            SHA1

            d1413933b116ff3b7e062d4a328de63987e94253

            SHA256

            b21c4b144314c759682ed84545fe74ec27347c9ad914fd95c738272faaa3ccd9

            SHA512

            14d198174e78a5a76996fc2eda4f2f39cd9d28960a6935121af8f1680179ac1da20c85d7671e4558590487f3f305b3f939d8827c67d9e3ae20a348db2a0cc82b

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            1b7bb3ef7be8afef9048f8d9677e2fc1

            SHA1

            4f6dd5f3f12495fe7b3120dd3b83ca22d5a109ad

            SHA256

            8f4228e65ed479cf1ac57d5ee7456c1bde5f9c87449d21301911b6b046785ff3

            SHA512

            c6ecd4f92d989d343c2b29bb2d69ff8cf00c7efeaa644b762d660a874ad8346ced4579835463b6b4e781fb29ab87da51387437e06061a48bbcaadfdfb6df0ad5

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            1b7bb3ef7be8afef9048f8d9677e2fc1

            SHA1

            4f6dd5f3f12495fe7b3120dd3b83ca22d5a109ad

            SHA256

            8f4228e65ed479cf1ac57d5ee7456c1bde5f9c87449d21301911b6b046785ff3

            SHA512

            c6ecd4f92d989d343c2b29bb2d69ff8cf00c7efeaa644b762d660a874ad8346ced4579835463b6b4e781fb29ab87da51387437e06061a48bbcaadfdfb6df0ad5

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e8b071f268c54b26cffd6996f24ae234

            SHA1

            c61bec9a1e122571a08dc6bad3d85b744d1bedc6

            SHA256

            c9a42e37ab6aa2600e44542641dd745d44b1be7e8b1a330e0b08e2d0195c6ceb

            SHA512

            d3817aa57859a4b2ee0dbaabbcfc88a89c6649aea326139d025a34c0ddb8948c24f3066bb991f9de82a5cd2bf815dd0fdcb60f54e26d2db0cea92ece9fb12691

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e8b071f268c54b26cffd6996f24ae234

            SHA1

            c61bec9a1e122571a08dc6bad3d85b744d1bedc6

            SHA256

            c9a42e37ab6aa2600e44542641dd745d44b1be7e8b1a330e0b08e2d0195c6ceb

            SHA512

            d3817aa57859a4b2ee0dbaabbcfc88a89c6649aea326139d025a34c0ddb8948c24f3066bb991f9de82a5cd2bf815dd0fdcb60f54e26d2db0cea92ece9fb12691

          • \Users\Admin\AppData\Local\Temp\nst1049.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst1049.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1049.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1049.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst1049.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1d7d6222a5dc81478481198b8d3e5006

            SHA1

            5853cce712aae0067e2c8eb3c462d0c3778df501

            SHA256

            fc27100b8427ac9ce604ea8faba9dfc689335fc3291b9879dd1959f24fefb2ae

            SHA512

            32e470e15f2b6843c455716ffff965cbcb0f8ed9fff87201a5dc8ffe2eb93f493d314e44dc20ac8a207af81b463c3e1c27c3e552886d7115e4d98c22a5da4fad

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1d7d6222a5dc81478481198b8d3e5006

            SHA1

            5853cce712aae0067e2c8eb3c462d0c3778df501

            SHA256

            fc27100b8427ac9ce604ea8faba9dfc689335fc3291b9879dd1959f24fefb2ae

            SHA512

            32e470e15f2b6843c455716ffff965cbcb0f8ed9fff87201a5dc8ffe2eb93f493d314e44dc20ac8a207af81b463c3e1c27c3e552886d7115e4d98c22a5da4fad

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            1d7d6222a5dc81478481198b8d3e5006

            SHA1

            5853cce712aae0067e2c8eb3c462d0c3778df501

            SHA256

            fc27100b8427ac9ce604ea8faba9dfc689335fc3291b9879dd1959f24fefb2ae

            SHA512

            32e470e15f2b6843c455716ffff965cbcb0f8ed9fff87201a5dc8ffe2eb93f493d314e44dc20ac8a207af81b463c3e1c27c3e552886d7115e4d98c22a5da4fad

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            baaf0bb2223a01c6c554bd24c49dcc1c

            SHA1

            01b2f3d97fded0c45ce31e98aa894b60fcf0a7dc

            SHA256

            530a036b589e9c04e187ad2ca910d3b7ddb6f2e3b479dee6f08d62e4dc8c7094

            SHA512

            e0630320be0a14e25730b026911760d9cce9cc8bcd312a413a640585cb0806064ffb5f72056b94e88bd1f5eeda366c0198e6b37630728548ff9ab0dd522853f2

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            baaf0bb2223a01c6c554bd24c49dcc1c

            SHA1

            01b2f3d97fded0c45ce31e98aa894b60fcf0a7dc

            SHA256

            530a036b589e9c04e187ad2ca910d3b7ddb6f2e3b479dee6f08d62e4dc8c7094

            SHA512

            e0630320be0a14e25730b026911760d9cce9cc8bcd312a413a640585cb0806064ffb5f72056b94e88bd1f5eeda366c0198e6b37630728548ff9ab0dd522853f2

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            12ca8395aeedf2a96a191d0a04172707

            SHA1

            d1413933b116ff3b7e062d4a328de63987e94253

            SHA256

            b21c4b144314c759682ed84545fe74ec27347c9ad914fd95c738272faaa3ccd9

            SHA512

            14d198174e78a5a76996fc2eda4f2f39cd9d28960a6935121af8f1680179ac1da20c85d7671e4558590487f3f305b3f939d8827c67d9e3ae20a348db2a0cc82b

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            1b7bb3ef7be8afef9048f8d9677e2fc1

            SHA1

            4f6dd5f3f12495fe7b3120dd3b83ca22d5a109ad

            SHA256

            8f4228e65ed479cf1ac57d5ee7456c1bde5f9c87449d21301911b6b046785ff3

            SHA512

            c6ecd4f92d989d343c2b29bb2d69ff8cf00c7efeaa644b762d660a874ad8346ced4579835463b6b4e781fb29ab87da51387437e06061a48bbcaadfdfb6df0ad5

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e8b071f268c54b26cffd6996f24ae234

            SHA1

            c61bec9a1e122571a08dc6bad3d85b744d1bedc6

            SHA256

            c9a42e37ab6aa2600e44542641dd745d44b1be7e8b1a330e0b08e2d0195c6ceb

            SHA512

            d3817aa57859a4b2ee0dbaabbcfc88a89c6649aea326139d025a34c0ddb8948c24f3066bb991f9de82a5cd2bf815dd0fdcb60f54e26d2db0cea92ece9fb12691

          • memory/272-71-0x0000000000000000-mapping.dmp
          • memory/360-88-0x0000000000000000-mapping.dmp
          • memory/384-81-0x0000000000000000-mapping.dmp
          • memory/948-57-0x0000000000000000-mapping.dmp
          • memory/1156-64-0x0000000000000000-mapping.dmp
          • memory/1380-61-0x0000000000000000-mapping.dmp
          • memory/1664-82-0x0000000000000000-mapping.dmp
          • memory/1760-58-0x0000000000000000-mapping.dmp
          • memory/1768-62-0x0000000000000000-mapping.dmp
          • memory/1920-87-0x0000000000000000-mapping.dmp
          • memory/1968-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1968-54-0x0000000075141000-0x0000000075143000-memory.dmp
            Filesize

            8KB

          • memory/1968-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1968-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2028-77-0x0000000000000000-mapping.dmp