Analysis

  • max time kernel
    153s
  • max time network
    166s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:26

General

  • Target

    49240577ac533c9058a1dc944623734f2467ae10a6f76af9c748bc7300df1604.exe

  • Size

    601KB

  • MD5

    a56f31a149f0f672ee1ec528a171668d

  • SHA1

    65a20122287dfd1b03b6d8a1f5669518ee213593

  • SHA256

    49240577ac533c9058a1dc944623734f2467ae10a6f76af9c748bc7300df1604

  • SHA512

    db548361610322fd95756fe032fa921c1a94511dd15146ac0045c7d73715fdc2ec597d40727302542f65bfe465a88fe683752f8939d4bf253b0bc0acd636bf9e

  • SSDEEP

    12288:XIny5DYT4xgZ71buQvJ0baRcw+qkdjN0wKI6QR:/UT4xg7bu1baZ+qkF6wj6S

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\49240577ac533c9058a1dc944623734f2467ae10a6f76af9c748bc7300df1604.exe
    "C:\Users\Admin\AppData\Local\Temp\49240577ac533c9058a1dc944623734f2467ae10a6f76af9c748bc7300df1604.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:952
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2536
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:220
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:544
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4760
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2824
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3796
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4312
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2724
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2384
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2588
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3544
          • 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:2156
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5116

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nszECE7.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            29e14f39cd2ba81487bfccc5fd43c9f7

            SHA1

            4c30ace02553d1c194715e17516f72960a187c68

            SHA256

            b31c354410893aff706f9c9b38b951aa09a98053c05770233c07b62e8a0fcfca

            SHA512

            cf8a476e7799e8aa935b3818ac22d6acf5b8676425b1ef4c6f95de19b98181ab192ee2bc034a155be3fd735debc6a7359ce1d2f25d6d36145f7a3c14820107b8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            29e14f39cd2ba81487bfccc5fd43c9f7

            SHA1

            4c30ace02553d1c194715e17516f72960a187c68

            SHA256

            b31c354410893aff706f9c9b38b951aa09a98053c05770233c07b62e8a0fcfca

            SHA512

            cf8a476e7799e8aa935b3818ac22d6acf5b8676425b1ef4c6f95de19b98181ab192ee2bc034a155be3fd735debc6a7359ce1d2f25d6d36145f7a3c14820107b8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            29e14f39cd2ba81487bfccc5fd43c9f7

            SHA1

            4c30ace02553d1c194715e17516f72960a187c68

            SHA256

            b31c354410893aff706f9c9b38b951aa09a98053c05770233c07b62e8a0fcfca

            SHA512

            cf8a476e7799e8aa935b3818ac22d6acf5b8676425b1ef4c6f95de19b98181ab192ee2bc034a155be3fd735debc6a7359ce1d2f25d6d36145f7a3c14820107b8

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            29e14f39cd2ba81487bfccc5fd43c9f7

            SHA1

            4c30ace02553d1c194715e17516f72960a187c68

            SHA256

            b31c354410893aff706f9c9b38b951aa09a98053c05770233c07b62e8a0fcfca

            SHA512

            cf8a476e7799e8aa935b3818ac22d6acf5b8676425b1ef4c6f95de19b98181ab192ee2bc034a155be3fd735debc6a7359ce1d2f25d6d36145f7a3c14820107b8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            84d128ef3bbd826934557d4f3726c254

            SHA1

            3da19997f64dfb42c358a527aa8e816ced4e9e97

            SHA256

            505aa499fcbe00b9b461f00d967e2d0b67cb15d6364671f037b6589e4b67b686

            SHA512

            27e11a4d2e3b2b992c3a3988eba7848584b316ffa890506e47f2c7628f44e7a7553fbbd8d386cc376e13913ac492cbbf1d30d3148a30cd106d0d4672a3846cc3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            84d128ef3bbd826934557d4f3726c254

            SHA1

            3da19997f64dfb42c358a527aa8e816ced4e9e97

            SHA256

            505aa499fcbe00b9b461f00d967e2d0b67cb15d6364671f037b6589e4b67b686

            SHA512

            27e11a4d2e3b2b992c3a3988eba7848584b316ffa890506e47f2c7628f44e7a7553fbbd8d386cc376e13913ac492cbbf1d30d3148a30cd106d0d4672a3846cc3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            84d128ef3bbd826934557d4f3726c254

            SHA1

            3da19997f64dfb42c358a527aa8e816ced4e9e97

            SHA256

            505aa499fcbe00b9b461f00d967e2d0b67cb15d6364671f037b6589e4b67b686

            SHA512

            27e11a4d2e3b2b992c3a3988eba7848584b316ffa890506e47f2c7628f44e7a7553fbbd8d386cc376e13913ac492cbbf1d30d3148a30cd106d0d4672a3846cc3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bcecf24bbdd90bd339b60aee688cd1be

            SHA1

            5c50f85815af8f7d620278ab23151d4766ebf133

            SHA256

            70f13ec8044b324af6393970ae12b631d47682e4c1f6a563bf58fd189f70971c

            SHA512

            ea096504ab49ee223d34005ab78dfb5a9f709194aa0c7cae290d41e3accb63af237a852095e09c027e5111ce04af51e91ff278f4db77b31954a4670229e8428e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bcecf24bbdd90bd339b60aee688cd1be

            SHA1

            5c50f85815af8f7d620278ab23151d4766ebf133

            SHA256

            70f13ec8044b324af6393970ae12b631d47682e4c1f6a563bf58fd189f70971c

            SHA512

            ea096504ab49ee223d34005ab78dfb5a9f709194aa0c7cae290d41e3accb63af237a852095e09c027e5111ce04af51e91ff278f4db77b31954a4670229e8428e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            92df8b2dd7081684b0c0df948b4e1446

            SHA1

            a0ca4d069ebaf53f396b691bd89909645d42974f

            SHA256

            68dde1abfe2ece8806f67c6308a1f51e73a289de5f833dbd0390e513c8cd632a

            SHA512

            0ede8f8820b4d8f3aacab588397d2ec17f37d34c91506e949c57bea3ef3fac3d5ad59ab28b89cc9a9d10f2e3f14bc883ea76f5e52798bad74375e2dc430ec390

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            92df8b2dd7081684b0c0df948b4e1446

            SHA1

            a0ca4d069ebaf53f396b691bd89909645d42974f

            SHA256

            68dde1abfe2ece8806f67c6308a1f51e73a289de5f833dbd0390e513c8cd632a

            SHA512

            0ede8f8820b4d8f3aacab588397d2ec17f37d34c91506e949c57bea3ef3fac3d5ad59ab28b89cc9a9d10f2e3f14bc883ea76f5e52798bad74375e2dc430ec390

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            92df8b2dd7081684b0c0df948b4e1446

            SHA1

            a0ca4d069ebaf53f396b691bd89909645d42974f

            SHA256

            68dde1abfe2ece8806f67c6308a1f51e73a289de5f833dbd0390e513c8cd632a

            SHA512

            0ede8f8820b4d8f3aacab588397d2ec17f37d34c91506e949c57bea3ef3fac3d5ad59ab28b89cc9a9d10f2e3f14bc883ea76f5e52798bad74375e2dc430ec390

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            262293caeaea23975ce5d2bdd81ad835

            SHA1

            a2ae45df151eb8ca8473e3bd141f5fc7c748a376

            SHA256

            44d80aebcde0d03e268f3433c3a984098427273e0f7f638c39096aaec8c3cba7

            SHA512

            360385114787d61dffd5b2464674f8a10da4791452644544c0ef5a4973aa35942716dd9d36b0dff2589212a1f2966706dbe9460437a649e46e40d74d58b091ce

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            262293caeaea23975ce5d2bdd81ad835

            SHA1

            a2ae45df151eb8ca8473e3bd141f5fc7c748a376

            SHA256

            44d80aebcde0d03e268f3433c3a984098427273e0f7f638c39096aaec8c3cba7

            SHA512

            360385114787d61dffd5b2464674f8a10da4791452644544c0ef5a4973aa35942716dd9d36b0dff2589212a1f2966706dbe9460437a649e46e40d74d58b091ce

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            262293caeaea23975ce5d2bdd81ad835

            SHA1

            a2ae45df151eb8ca8473e3bd141f5fc7c748a376

            SHA256

            44d80aebcde0d03e268f3433c3a984098427273e0f7f638c39096aaec8c3cba7

            SHA512

            360385114787d61dffd5b2464674f8a10da4791452644544c0ef5a4973aa35942716dd9d36b0dff2589212a1f2966706dbe9460437a649e46e40d74d58b091ce

          • memory/220-137-0x0000000000000000-mapping.dmp

          • memory/544-140-0x0000000000000000-mapping.dmp

          • memory/952-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/952-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2384-159-0x0000000000000000-mapping.dmp

          • memory/2536-135-0x0000000000000000-mapping.dmp

          • memory/2588-165-0x0000000000000000-mapping.dmp

          • memory/2724-158-0x0000000000000000-mapping.dmp

          • memory/2824-142-0x0000000000000000-mapping.dmp

          • memory/3544-166-0x0000000000000000-mapping.dmp

          • memory/3796-147-0x0000000000000000-mapping.dmp

          • memory/4312-153-0x0000000000000000-mapping.dmp

          • memory/4760-141-0x0000000000000000-mapping.dmp