Analysis

  • max time kernel
    148s
  • max time network
    168s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:27

General

  • Target

    457d85069a00a076822774af79d15363a02ca6f57fef648bca1ead6dd243b96f.exe

  • Size

    601KB

  • MD5

    c876c70e064e2cc6d68fe759379f8e35

  • SHA1

    ffaf205327bd6416c0a6f073467d985d913d05c2

  • SHA256

    457d85069a00a076822774af79d15363a02ca6f57fef648bca1ead6dd243b96f

  • SHA512

    dd056ad7913c586e774f670a263309d3f92387789cdc2c79a45da1e3c527fedd0c208659c0f1b6e93e1698b9924f58629644e78a42ac22688506809e353d70a9

  • SSDEEP

    12288:zIny5DYTeHvDXlhqcRSTW7VG+L7xDZBKJaKs9jTmG0:bUTWDtsC7VpxDiJaPP0

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\457d85069a00a076822774af79d15363a02ca6f57fef648bca1ead6dd243b96f.exe
    "C:\Users\Admin\AppData\Local\Temp\457d85069a00a076822774af79d15363a02ca6f57fef648bca1ead6dd243b96f.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:4512
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5024
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4964
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2196
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:732
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3644
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2200
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2356
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4288
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1512
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3692
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3724
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:1332
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4116

          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:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nstEA09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            d9925c151fcfa29b61248c7aec66802d

            SHA1

            aa2ce02d4831d3ca9e0768ef4b37596c49bf8cdc

            SHA256

            a48514e3858cdb75ceb858d4822660e20bf29720455e8be42c56c0449b52e5a9

            SHA512

            482287a0e0981e60c552bab8e929be6e3ad2bd1ca76f28704c6f918a51ba7f3faccf0a1ca17739027f6f551489cff4ba6d89ebb543161ea936ea6d772544d5f0

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

            106KB

            MD5

            d9925c151fcfa29b61248c7aec66802d

            SHA1

            aa2ce02d4831d3ca9e0768ef4b37596c49bf8cdc

            SHA256

            a48514e3858cdb75ceb858d4822660e20bf29720455e8be42c56c0449b52e5a9

            SHA512

            482287a0e0981e60c552bab8e929be6e3ad2bd1ca76f28704c6f918a51ba7f3faccf0a1ca17739027f6f551489cff4ba6d89ebb543161ea936ea6d772544d5f0

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

            106KB

            MD5

            d9925c151fcfa29b61248c7aec66802d

            SHA1

            aa2ce02d4831d3ca9e0768ef4b37596c49bf8cdc

            SHA256

            a48514e3858cdb75ceb858d4822660e20bf29720455e8be42c56c0449b52e5a9

            SHA512

            482287a0e0981e60c552bab8e929be6e3ad2bd1ca76f28704c6f918a51ba7f3faccf0a1ca17739027f6f551489cff4ba6d89ebb543161ea936ea6d772544d5f0

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

            106KB

            MD5

            d9925c151fcfa29b61248c7aec66802d

            SHA1

            aa2ce02d4831d3ca9e0768ef4b37596c49bf8cdc

            SHA256

            a48514e3858cdb75ceb858d4822660e20bf29720455e8be42c56c0449b52e5a9

            SHA512

            482287a0e0981e60c552bab8e929be6e3ad2bd1ca76f28704c6f918a51ba7f3faccf0a1ca17739027f6f551489cff4ba6d89ebb543161ea936ea6d772544d5f0

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

            241KB

            MD5

            ba297e1451a28b014b3e9e69c5cf0646

            SHA1

            50c72e40a9a7d60b6abe2ab06412dd310fd33fc1

            SHA256

            bf5dfa8f7de397d6fb89854bd6cb0cfbb7322802d594f150d5731d0e44773f86

            SHA512

            328580a087062854a0328e102c05166b6e977c48363f68ffece58cf4f5eb3a18e990e18175526f877fe59aa50e9c804bf68060c55607c28e4fa3195736092e93

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

            241KB

            MD5

            ba297e1451a28b014b3e9e69c5cf0646

            SHA1

            50c72e40a9a7d60b6abe2ab06412dd310fd33fc1

            SHA256

            bf5dfa8f7de397d6fb89854bd6cb0cfbb7322802d594f150d5731d0e44773f86

            SHA512

            328580a087062854a0328e102c05166b6e977c48363f68ffece58cf4f5eb3a18e990e18175526f877fe59aa50e9c804bf68060c55607c28e4fa3195736092e93

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

            241KB

            MD5

            ba297e1451a28b014b3e9e69c5cf0646

            SHA1

            50c72e40a9a7d60b6abe2ab06412dd310fd33fc1

            SHA256

            bf5dfa8f7de397d6fb89854bd6cb0cfbb7322802d594f150d5731d0e44773f86

            SHA512

            328580a087062854a0328e102c05166b6e977c48363f68ffece58cf4f5eb3a18e990e18175526f877fe59aa50e9c804bf68060c55607c28e4fa3195736092e93

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

            108KB

            MD5

            97d0d14470b3390717456c2664e9acb5

            SHA1

            a31a5d3e33365eaa2e4065bdd62f0e0f8406202f

            SHA256

            d93410d024b8f258868c997ca6cb313683a436cd22d93ba45cc80ada0e311326

            SHA512

            5eaa1f7de491b838104c274bd14e7d2ba4518f1ff31991191fa8739f19881083b02f27cb62571a55bdbf4c1ac21f5c25122847ff27ab7c01608f500cc7e4e51d

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

            108KB

            MD5

            97d0d14470b3390717456c2664e9acb5

            SHA1

            a31a5d3e33365eaa2e4065bdd62f0e0f8406202f

            SHA256

            d93410d024b8f258868c997ca6cb313683a436cd22d93ba45cc80ada0e311326

            SHA512

            5eaa1f7de491b838104c274bd14e7d2ba4518f1ff31991191fa8739f19881083b02f27cb62571a55bdbf4c1ac21f5c25122847ff27ab7c01608f500cc7e4e51d

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

            176KB

            MD5

            572d8ce08f7bd8c4f26e6739dedaff14

            SHA1

            4ee1129ed81753f4f437762f7a833a85c13ccb74

            SHA256

            734815b9fae035d1016c1d6012dbf1090a40b8be403f4c3d1880c8012f6773c4

            SHA512

            633e98123059ab19d68a8fdaf08aa26ee1f6983d317b619634907e938400b512a209c38eb1df109f7ad153a1ab6ef81e899c7a6b405f871f3e70ca311335ec55

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

            176KB

            MD5

            572d8ce08f7bd8c4f26e6739dedaff14

            SHA1

            4ee1129ed81753f4f437762f7a833a85c13ccb74

            SHA256

            734815b9fae035d1016c1d6012dbf1090a40b8be403f4c3d1880c8012f6773c4

            SHA512

            633e98123059ab19d68a8fdaf08aa26ee1f6983d317b619634907e938400b512a209c38eb1df109f7ad153a1ab6ef81e899c7a6b405f871f3e70ca311335ec55

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

            176KB

            MD5

            572d8ce08f7bd8c4f26e6739dedaff14

            SHA1

            4ee1129ed81753f4f437762f7a833a85c13ccb74

            SHA256

            734815b9fae035d1016c1d6012dbf1090a40b8be403f4c3d1880c8012f6773c4

            SHA512

            633e98123059ab19d68a8fdaf08aa26ee1f6983d317b619634907e938400b512a209c38eb1df109f7ad153a1ab6ef81e899c7a6b405f871f3e70ca311335ec55

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

            158KB

            MD5

            af4eb2efd245a510afea56bd8f9af6f7

            SHA1

            1524ec9e4f707ee8b35223ee2e38ee82551d5a92

            SHA256

            dd9f39acbc03bbdd47bc723be99ca57e7af09ffce345e6b9eda74101d0ce1167

            SHA512

            57fca996e3706a7441beceb8c99c798ae4e19efeeb3f3469b88bc10d5d7e3e4d2df98f60116fa0d8241007255d14c7e689ec637deabf82178699c9d7ab264632

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

            158KB

            MD5

            af4eb2efd245a510afea56bd8f9af6f7

            SHA1

            1524ec9e4f707ee8b35223ee2e38ee82551d5a92

            SHA256

            dd9f39acbc03bbdd47bc723be99ca57e7af09ffce345e6b9eda74101d0ce1167

            SHA512

            57fca996e3706a7441beceb8c99c798ae4e19efeeb3f3469b88bc10d5d7e3e4d2df98f60116fa0d8241007255d14c7e689ec637deabf82178699c9d7ab264632

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

            158KB

            MD5

            af4eb2efd245a510afea56bd8f9af6f7

            SHA1

            1524ec9e4f707ee8b35223ee2e38ee82551d5a92

            SHA256

            dd9f39acbc03bbdd47bc723be99ca57e7af09ffce345e6b9eda74101d0ce1167

            SHA512

            57fca996e3706a7441beceb8c99c798ae4e19efeeb3f3469b88bc10d5d7e3e4d2df98f60116fa0d8241007255d14c7e689ec637deabf82178699c9d7ab264632

          • memory/732-141-0x0000000000000000-mapping.dmp
          • memory/1512-159-0x0000000000000000-mapping.dmp
          • memory/2196-140-0x0000000000000000-mapping.dmp
          • memory/2200-147-0x0000000000000000-mapping.dmp
          • memory/2356-153-0x0000000000000000-mapping.dmp
          • memory/3644-142-0x0000000000000000-mapping.dmp
          • memory/3692-165-0x0000000000000000-mapping.dmp
          • memory/3724-166-0x0000000000000000-mapping.dmp
          • memory/4288-158-0x0000000000000000-mapping.dmp
          • memory/4512-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4512-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4964-137-0x0000000000000000-mapping.dmp
          • memory/5024-136-0x0000000000000000-mapping.dmp