Analysis

  • max time kernel
    45s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    97625a28e045cbf4e79283d1959e1cad02690de95c4ccc351a86a532d22a9323.exe

  • Size

    602KB

  • MD5

    6ab51a6024f1130db647d3552ebc4d8a

  • SHA1

    30d72c0629f29b968f86b04e6b7d31ab20ad493a

  • SHA256

    97625a28e045cbf4e79283d1959e1cad02690de95c4ccc351a86a532d22a9323

  • SHA512

    280ec5aabb10c3c5d6a1e3f636f0f846305fab926dd3774778ca0822516791ba0a392e9f8bc325bdb31db4b43b4f09f44bf35262195ff77d818f05ea39568176

  • SSDEEP

    12288:sIny5DYTZInfZPjfyMr6RpDjrjqatggPOLpg3CTsSPuSz0aT:qUTZMfZr3rartXPkpgWsVSYa

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\97625a28e045cbf4e79283d1959e1cad02690de95c4ccc351a86a532d22a9323.exe
    "C:\Users\Admin\AppData\Local\Temp\97625a28e045cbf4e79283d1959e1cad02690de95c4ccc351a86a532d22a9323.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:2024
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1032
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:544
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:964
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1944
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:760
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1048
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1984
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:996
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1556
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1840
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:896
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1220
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1304

          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

            4efc629b4bb0a42d6efa512d2b44b262

            SHA1

            3d318dc3f41a00309be77bddbb54745c19001ed8

            SHA256

            745ebd045b59f0e001fb96867594be9572d33e7b80bd77d371ff7c207e366fd9

            SHA512

            10bfd4f97a485aff93643bb0a42a942245a886645008bc34151de8cae4d7ac938f144d301a906bfeeab6d68cd4788d7b28eb3f6253324d30991968b0dcac531d

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

            241KB

            MD5

            294ac4958060c8057890587995b5f383

            SHA1

            2c67515013ed195de89f7a8ac027fd257f943e9c

            SHA256

            b6ff0bbfe2962ea07bf16861284f05e8c36a8521cd973f0374dfca4e4ca87dad

            SHA512

            1df4192149f336abf8c72661a9230b4d734bc1b640231d69af94c36e03ba107ab07a5a02cb27ab86590093bd5b132b8f799fcaa46ab25f95571efad48da3f7fc

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

            108KB

            MD5

            a9e42ae8a9704c2e651de7eaddd1bab7

            SHA1

            e1183aecdd8f749bf45f83be0c3c0f1507368edf

            SHA256

            92b8a3f7b0e8701d3a868e7a193545881889c7fd2730e129390c71a548c62f71

            SHA512

            cba268fad7eb198cb38b4b26b5b749eae246d7b5e8eae5dd03748f121fbfa974cf002d10d8962e50d72bc8da3e75f3630520a399661181a53638517c7d8934df

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

            176KB

            MD5

            97b0b134324943ee9661316f64b34698

            SHA1

            be1ba11b7a8d9435d419ff6a1fc91617e333d560

            SHA256

            0ccb6095f436c2e07300c22d926844a0123cb10c6ba145992011f42392001dc1

            SHA512

            50bd0f4ae2d1b08bbc1e4ad771f70f82db98a114cf0fd4779bc81b08243851898cb75a42961be6212dac61606659b6578594ae0ca1dc2804907f9281d4fdd4dc

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

            176KB

            MD5

            97b0b134324943ee9661316f64b34698

            SHA1

            be1ba11b7a8d9435d419ff6a1fc91617e333d560

            SHA256

            0ccb6095f436c2e07300c22d926844a0123cb10c6ba145992011f42392001dc1

            SHA512

            50bd0f4ae2d1b08bbc1e4ad771f70f82db98a114cf0fd4779bc81b08243851898cb75a42961be6212dac61606659b6578594ae0ca1dc2804907f9281d4fdd4dc

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

            159KB

            MD5

            2c028144a6d1513d04243fb71fca1524

            SHA1

            ec7c054a6a2221cfa9077573783cbaba7f3e4d09

            SHA256

            c5d0e3568234f372827cd67111edd4881422e2c7a49171ea6c513fc98452898c

            SHA512

            6bd5e0f71cca1de252317399e80ef68f73880c021a3f37c62d8a8d1ae289fb2a616109bf7494e106181868bc1dbeb8a9372a7545ce8c6f9fae68be3b11402abd

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

            159KB

            MD5

            2c028144a6d1513d04243fb71fca1524

            SHA1

            ec7c054a6a2221cfa9077573783cbaba7f3e4d09

            SHA256

            c5d0e3568234f372827cd67111edd4881422e2c7a49171ea6c513fc98452898c

            SHA512

            6bd5e0f71cca1de252317399e80ef68f73880c021a3f37c62d8a8d1ae289fb2a616109bf7494e106181868bc1dbeb8a9372a7545ce8c6f9fae68be3b11402abd

          • \Users\Admin\AppData\Local\Temp\nsjC46B.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjC46B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjC46B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjC46B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjC46B.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4efc629b4bb0a42d6efa512d2b44b262

            SHA1

            3d318dc3f41a00309be77bddbb54745c19001ed8

            SHA256

            745ebd045b59f0e001fb96867594be9572d33e7b80bd77d371ff7c207e366fd9

            SHA512

            10bfd4f97a485aff93643bb0a42a942245a886645008bc34151de8cae4d7ac938f144d301a906bfeeab6d68cd4788d7b28eb3f6253324d30991968b0dcac531d

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4efc629b4bb0a42d6efa512d2b44b262

            SHA1

            3d318dc3f41a00309be77bddbb54745c19001ed8

            SHA256

            745ebd045b59f0e001fb96867594be9572d33e7b80bd77d371ff7c207e366fd9

            SHA512

            10bfd4f97a485aff93643bb0a42a942245a886645008bc34151de8cae4d7ac938f144d301a906bfeeab6d68cd4788d7b28eb3f6253324d30991968b0dcac531d

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4efc629b4bb0a42d6efa512d2b44b262

            SHA1

            3d318dc3f41a00309be77bddbb54745c19001ed8

            SHA256

            745ebd045b59f0e001fb96867594be9572d33e7b80bd77d371ff7c207e366fd9

            SHA512

            10bfd4f97a485aff93643bb0a42a942245a886645008bc34151de8cae4d7ac938f144d301a906bfeeab6d68cd4788d7b28eb3f6253324d30991968b0dcac531d

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            294ac4958060c8057890587995b5f383

            SHA1

            2c67515013ed195de89f7a8ac027fd257f943e9c

            SHA256

            b6ff0bbfe2962ea07bf16861284f05e8c36a8521cd973f0374dfca4e4ca87dad

            SHA512

            1df4192149f336abf8c72661a9230b4d734bc1b640231d69af94c36e03ba107ab07a5a02cb27ab86590093bd5b132b8f799fcaa46ab25f95571efad48da3f7fc

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            294ac4958060c8057890587995b5f383

            SHA1

            2c67515013ed195de89f7a8ac027fd257f943e9c

            SHA256

            b6ff0bbfe2962ea07bf16861284f05e8c36a8521cd973f0374dfca4e4ca87dad

            SHA512

            1df4192149f336abf8c72661a9230b4d734bc1b640231d69af94c36e03ba107ab07a5a02cb27ab86590093bd5b132b8f799fcaa46ab25f95571efad48da3f7fc

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a9e42ae8a9704c2e651de7eaddd1bab7

            SHA1

            e1183aecdd8f749bf45f83be0c3c0f1507368edf

            SHA256

            92b8a3f7b0e8701d3a868e7a193545881889c7fd2730e129390c71a548c62f71

            SHA512

            cba268fad7eb198cb38b4b26b5b749eae246d7b5e8eae5dd03748f121fbfa974cf002d10d8962e50d72bc8da3e75f3630520a399661181a53638517c7d8934df

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            97b0b134324943ee9661316f64b34698

            SHA1

            be1ba11b7a8d9435d419ff6a1fc91617e333d560

            SHA256

            0ccb6095f436c2e07300c22d926844a0123cb10c6ba145992011f42392001dc1

            SHA512

            50bd0f4ae2d1b08bbc1e4ad771f70f82db98a114cf0fd4779bc81b08243851898cb75a42961be6212dac61606659b6578594ae0ca1dc2804907f9281d4fdd4dc

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            2c028144a6d1513d04243fb71fca1524

            SHA1

            ec7c054a6a2221cfa9077573783cbaba7f3e4d09

            SHA256

            c5d0e3568234f372827cd67111edd4881422e2c7a49171ea6c513fc98452898c

            SHA512

            6bd5e0f71cca1de252317399e80ef68f73880c021a3f37c62d8a8d1ae289fb2a616109bf7494e106181868bc1dbeb8a9372a7545ce8c6f9fae68be3b11402abd

          • memory/544-59-0x0000000000000000-mapping.dmp
          • memory/760-64-0x0000000000000000-mapping.dmp
          • memory/896-88-0x0000000000000000-mapping.dmp
          • memory/964-61-0x0000000000000000-mapping.dmp
          • memory/996-81-0x0000000000000000-mapping.dmp
          • memory/1032-58-0x0000000000000000-mapping.dmp
          • memory/1048-70-0x0000000000000000-mapping.dmp
          • memory/1556-82-0x0000000000000000-mapping.dmp
          • memory/1840-87-0x0000000000000000-mapping.dmp
          • memory/1944-62-0x0000000000000000-mapping.dmp
          • memory/1984-77-0x0000000000000000-mapping.dmp
          • memory/2024-54-0x00000000754C1000-0x00000000754C3000-memory.dmp
            Filesize

            8KB

          • memory/2024-75-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2024-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2024-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB