Analysis

  • max time kernel
    98s
  • 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 10:59

General

  • Target

    1a0af67b108a7914b2b56b90daea0031cb45d5890620b1f34c9a5fe1d311caff.exe

  • Size

    447KB

  • MD5

    7bec2e911e50735a9dc183fb249964ce

  • SHA1

    19de7e4a5deef89ec6e499805864c7b8c2f93957

  • SHA256

    1a0af67b108a7914b2b56b90daea0031cb45d5890620b1f34c9a5fe1d311caff

  • SHA512

    6bc798d5e6265859699f4a323313b61dc52e7dd24a4e644407b5b632ecde8dd25f99d887843b1cd2ebfad1031f907286cc88b4f58c6ecf41e067f9c19a0f976e

  • SSDEEP

    12288:jkpWMVGCCYJTZ4GHrskQ5l3jeOld9REWNKebmni:jkpWsKGHkUObKebmni

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\1a0af67b108a7914b2b56b90daea0031cb45d5890620b1f34c9a5fe1d311caff.exe
    "C:\Users\Admin\AppData\Local\Temp\1a0af67b108a7914b2b56b90daea0031cb45d5890620b1f34c9a5fe1d311caff.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:692
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1440
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1280
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1284
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1008
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1268
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1972
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1968
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:328
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:808
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:876
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:912

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a718cd1297b158a7f8f8695f163a5da3

            SHA1

            d2299f62fc63a03d9ab5e05fb676502298c80b2a

            SHA256

            20fed230e9b0afc8e3604584b6bf4ba98cecf2ff20f25d6439e970601836489e

            SHA512

            ded7144e7d0ca61e335602232796e89248f3a289d4174b3f54cbea82e6ea21d677ae19e72e8c5eef4f39f94d7e868557e6432c135840cf9f747afc0fc835e746

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0602aea75576677693244fb6a19f213e

            SHA1

            4653fc66ef0fb58a7375d07a1b8985f3d3ac6d0d

            SHA256

            40d7f84ba34f1bc9544e7a4c9261a2372be7a5a6c04fed522ef9daf64db4c9a4

            SHA512

            d9780fe500c32a946e8b99ea0388d4dbbb66274d6d0e3dc6196ca0d0a58a486a7d718da03c957321c304a56896220ca680cb29aa9e60926dcf46e234ee30bf52

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            72ac5170ccf53dfce9bb450905208c46

            SHA1

            303a425e35f15a05385db49f3feaf922f41c78cd

            SHA256

            32d2ac890dbbcd6e81cde3d93e56d1eabf17bb7e85deb176ac1360f450cfb702

            SHA512

            1c25c5a8466f5b272a020e80c8f59690bfb2ef37b4cf5a92989832d4aaec6b589293315e6ce80a6dda2f04d0e2ec6a82dabfdca3838a6dcc507d68dbf4aaafe6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a7bfc6bd937ac4ef6354f55986b508f1

            SHA1

            a4c19cbbd616e4a8016316c8ee9fa929218df48a

            SHA256

            a322bda956654075c108bb99b12058531ce5241d004a5ec6d90eec91e9d057a8

            SHA512

            256f7839597e8999c5d53aa7deaa93e660bb1af3a5969c8b016c6b05960400605cf6ed34cbb2f7f6f6eb0a9a8fbed7cdd385ecc2b1a5fefd0e9042e7402f8a68

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a7bfc6bd937ac4ef6354f55986b508f1

            SHA1

            a4c19cbbd616e4a8016316c8ee9fa929218df48a

            SHA256

            a322bda956654075c108bb99b12058531ce5241d004a5ec6d90eec91e9d057a8

            SHA512

            256f7839597e8999c5d53aa7deaa93e660bb1af3a5969c8b016c6b05960400605cf6ed34cbb2f7f6f6eb0a9a8fbed7cdd385ecc2b1a5fefd0e9042e7402f8a68

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e5e2c0422bdad1ab5d2122404c2ef4e7

            SHA1

            666d02f02b25065352a1aaa64812e79fdecdb5b4

            SHA256

            f1c5b89cf68ed8e0a4e394d777019ee6f80def6b6440c008f32530f848425b90

            SHA512

            33962e51ae9570774698bd2225b0f7861a70d18dbc0884a04d79ba8c7cee59377774cff3a40d055d8d2ce9a1483f64611914fb64fb386a23201190bf7d12c0df

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e5e2c0422bdad1ab5d2122404c2ef4e7

            SHA1

            666d02f02b25065352a1aaa64812e79fdecdb5b4

            SHA256

            f1c5b89cf68ed8e0a4e394d777019ee6f80def6b6440c008f32530f848425b90

            SHA512

            33962e51ae9570774698bd2225b0f7861a70d18dbc0884a04d79ba8c7cee59377774cff3a40d055d8d2ce9a1483f64611914fb64fb386a23201190bf7d12c0df

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a718cd1297b158a7f8f8695f163a5da3

            SHA1

            d2299f62fc63a03d9ab5e05fb676502298c80b2a

            SHA256

            20fed230e9b0afc8e3604584b6bf4ba98cecf2ff20f25d6439e970601836489e

            SHA512

            ded7144e7d0ca61e335602232796e89248f3a289d4174b3f54cbea82e6ea21d677ae19e72e8c5eef4f39f94d7e868557e6432c135840cf9f747afc0fc835e746

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a718cd1297b158a7f8f8695f163a5da3

            SHA1

            d2299f62fc63a03d9ab5e05fb676502298c80b2a

            SHA256

            20fed230e9b0afc8e3604584b6bf4ba98cecf2ff20f25d6439e970601836489e

            SHA512

            ded7144e7d0ca61e335602232796e89248f3a289d4174b3f54cbea82e6ea21d677ae19e72e8c5eef4f39f94d7e868557e6432c135840cf9f747afc0fc835e746

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a718cd1297b158a7f8f8695f163a5da3

            SHA1

            d2299f62fc63a03d9ab5e05fb676502298c80b2a

            SHA256

            20fed230e9b0afc8e3604584b6bf4ba98cecf2ff20f25d6439e970601836489e

            SHA512

            ded7144e7d0ca61e335602232796e89248f3a289d4174b3f54cbea82e6ea21d677ae19e72e8c5eef4f39f94d7e868557e6432c135840cf9f747afc0fc835e746

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0602aea75576677693244fb6a19f213e

            SHA1

            4653fc66ef0fb58a7375d07a1b8985f3d3ac6d0d

            SHA256

            40d7f84ba34f1bc9544e7a4c9261a2372be7a5a6c04fed522ef9daf64db4c9a4

            SHA512

            d9780fe500c32a946e8b99ea0388d4dbbb66274d6d0e3dc6196ca0d0a58a486a7d718da03c957321c304a56896220ca680cb29aa9e60926dcf46e234ee30bf52

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0602aea75576677693244fb6a19f213e

            SHA1

            4653fc66ef0fb58a7375d07a1b8985f3d3ac6d0d

            SHA256

            40d7f84ba34f1bc9544e7a4c9261a2372be7a5a6c04fed522ef9daf64db4c9a4

            SHA512

            d9780fe500c32a946e8b99ea0388d4dbbb66274d6d0e3dc6196ca0d0a58a486a7d718da03c957321c304a56896220ca680cb29aa9e60926dcf46e234ee30bf52

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            72ac5170ccf53dfce9bb450905208c46

            SHA1

            303a425e35f15a05385db49f3feaf922f41c78cd

            SHA256

            32d2ac890dbbcd6e81cde3d93e56d1eabf17bb7e85deb176ac1360f450cfb702

            SHA512

            1c25c5a8466f5b272a020e80c8f59690bfb2ef37b4cf5a92989832d4aaec6b589293315e6ce80a6dda2f04d0e2ec6a82dabfdca3838a6dcc507d68dbf4aaafe6

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a7bfc6bd937ac4ef6354f55986b508f1

            SHA1

            a4c19cbbd616e4a8016316c8ee9fa929218df48a

            SHA256

            a322bda956654075c108bb99b12058531ce5241d004a5ec6d90eec91e9d057a8

            SHA512

            256f7839597e8999c5d53aa7deaa93e660bb1af3a5969c8b016c6b05960400605cf6ed34cbb2f7f6f6eb0a9a8fbed7cdd385ecc2b1a5fefd0e9042e7402f8a68

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e5e2c0422bdad1ab5d2122404c2ef4e7

            SHA1

            666d02f02b25065352a1aaa64812e79fdecdb5b4

            SHA256

            f1c5b89cf68ed8e0a4e394d777019ee6f80def6b6440c008f32530f848425b90

            SHA512

            33962e51ae9570774698bd2225b0f7861a70d18dbc0884a04d79ba8c7cee59377774cff3a40d055d8d2ce9a1483f64611914fb64fb386a23201190bf7d12c0df

          • memory/268-58-0x0000000000000000-mapping.dmp

          • memory/328-85-0x0000000000000000-mapping.dmp

          • memory/692-54-0x0000000076691000-0x0000000076693000-memory.dmp

            Filesize

            8KB

          • memory/808-86-0x0000000000000000-mapping.dmp

          • memory/1008-63-0x0000000000000000-mapping.dmp

          • memory/1268-69-0x0000000000000000-mapping.dmp

          • memory/1280-60-0x0000000000000000-mapping.dmp

          • memory/1284-61-0x0000000000000000-mapping.dmp

          • memory/1440-57-0x0000000000000000-mapping.dmp

          • memory/1652-79-0x0000000000000000-mapping.dmp

          • memory/1968-80-0x0000000000000000-mapping.dmp

          • memory/1972-75-0x0000000000000000-mapping.dmp