Analysis

  • max time kernel
    37s
  • max time network
    41s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:54

General

  • Target

    9cc4e717e91383a096d16bf93746d72da91c1d26281f117b6490fb73bc51e205.exe

  • Size

    447KB

  • MD5

    4cbf7662f8ab5a775c4b2c322c637ecd

  • SHA1

    e3249fdf152e8dae08d73ec1a4c8d2d41de4eb7c

  • SHA256

    9cc4e717e91383a096d16bf93746d72da91c1d26281f117b6490fb73bc51e205

  • SHA512

    62246d9cd2dd0790f12713ae6a9e8cc661b7fce55dbfbd1160c63a20d4a298793f018abb1ea642dfd14a5f54084dc9e1fa1bbb8357df6568dbffa3c5dbb77cfc

  • SSDEEP

    12288:Bk8W4qTHIFITSRZdvJKKosaL0508pUbSgJ5tyY5SueGVt:Bk8WBT+/nvIhLT3R5mET

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\9cc4e717e91383a096d16bf93746d72da91c1d26281f117b6490fb73bc51e205.exe
    "C:\Users\Admin\AppData\Local\Temp\9cc4e717e91383a096d16bf93746d72da91c1d26281f117b6490fb73bc51e205.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:1672
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1980
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1632
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1500
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1648
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1096
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:756
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1356
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:952
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1680
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1532
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:364
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:796
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1728

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4f7febb3b9674d28c466517919c0d3c3

            SHA1

            a0c20b145c182fc3064c6bc98b76389fca5ba3fd

            SHA256

            b3c5333daf7f5de399ef098aa7636e25fe545799ef075276135f312a2681bc78

            SHA512

            90918e36b6a7ee1669c31b761213330778528158d24240a4c02bc0bd643ab0e65f15a95729ebe890ea90ef80a2e295683b7cffe1b479e63173c6311c464f7ba9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            409825cd0c603bd92e487ec5ac408902

            SHA1

            f4d699b8f936c3bcda7eeec45ad8505240db5ed6

            SHA256

            d81c06f2d78e5d0984db2f2741c40b4a4684e930d24e7163aacce8dc1b74d201

            SHA512

            2c9e4a9a6811ee85945f91798cb4498efd4b433cbfefbbd308164e2d1c85b487b733438acb55e299b267aa86754e5edbe4a4e72434592b6aa6e9d1653bfb82cd

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6f3327e0752d38069248b297889a6ad2

            SHA1

            af568193a9df7ef2c2e813c04e36b299010a4761

            SHA256

            51f6d18d68424d64dab395796fd0b30751d26fada4466a659cf2cde4cae0b698

            SHA512

            b8418f0016fddd6cb934b74b02efc8e235bc5672e82c53e19e2f19f9f4e4ed6c3a965670b76028c749d67f2cb57cc5c6f38763994b250abc371bfeccee00b5e1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5a6f10603da0e509550f6bac48849b2f

            SHA1

            31e210e789845d4c0b1f48a106a6a364454a1ed9

            SHA256

            da09db4643fccdddf3e16b2f6f063ed8b647068db883bb862a121f98a0e4fa41

            SHA512

            b25b600b4b41ba81a9ed0d763161d78715bfc885257113f4a40959a3de61db0c279c26f92a428a2f2b542d9ead22caa14ec0280fb1b715de1d550ac04cdcbcc1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5a6f10603da0e509550f6bac48849b2f

            SHA1

            31e210e789845d4c0b1f48a106a6a364454a1ed9

            SHA256

            da09db4643fccdddf3e16b2f6f063ed8b647068db883bb862a121f98a0e4fa41

            SHA512

            b25b600b4b41ba81a9ed0d763161d78715bfc885257113f4a40959a3de61db0c279c26f92a428a2f2b542d9ead22caa14ec0280fb1b715de1d550ac04cdcbcc1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            16e924b7138c0e02d1aea973352a0fa1

            SHA1

            6c6783edde9c7311774453cd2cfda3dcf235c5dc

            SHA256

            a6946cde32404c24df3707f2b3ad1f2095207324a6245aa83a7a9c8f5ebb937d

            SHA512

            15f75c01981990a83f565992a28a0222aaac898ebdf57ed75316a4952801387e2245b49aac0c89e0cf5429bfe22c369684f2c4b53804abc7dd3e7014f2236e80

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            16e924b7138c0e02d1aea973352a0fa1

            SHA1

            6c6783edde9c7311774453cd2cfda3dcf235c5dc

            SHA256

            a6946cde32404c24df3707f2b3ad1f2095207324a6245aa83a7a9c8f5ebb937d

            SHA512

            15f75c01981990a83f565992a28a0222aaac898ebdf57ed75316a4952801387e2245b49aac0c89e0cf5429bfe22c369684f2c4b53804abc7dd3e7014f2236e80

          • \Users\Admin\AppData\Local\Temp\nsd4CDB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd4CDB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd4CDB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd4CDB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd4CDB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4f7febb3b9674d28c466517919c0d3c3

            SHA1

            a0c20b145c182fc3064c6bc98b76389fca5ba3fd

            SHA256

            b3c5333daf7f5de399ef098aa7636e25fe545799ef075276135f312a2681bc78

            SHA512

            90918e36b6a7ee1669c31b761213330778528158d24240a4c02bc0bd643ab0e65f15a95729ebe890ea90ef80a2e295683b7cffe1b479e63173c6311c464f7ba9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4f7febb3b9674d28c466517919c0d3c3

            SHA1

            a0c20b145c182fc3064c6bc98b76389fca5ba3fd

            SHA256

            b3c5333daf7f5de399ef098aa7636e25fe545799ef075276135f312a2681bc78

            SHA512

            90918e36b6a7ee1669c31b761213330778528158d24240a4c02bc0bd643ab0e65f15a95729ebe890ea90ef80a2e295683b7cffe1b479e63173c6311c464f7ba9

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4f7febb3b9674d28c466517919c0d3c3

            SHA1

            a0c20b145c182fc3064c6bc98b76389fca5ba3fd

            SHA256

            b3c5333daf7f5de399ef098aa7636e25fe545799ef075276135f312a2681bc78

            SHA512

            90918e36b6a7ee1669c31b761213330778528158d24240a4c02bc0bd643ab0e65f15a95729ebe890ea90ef80a2e295683b7cffe1b479e63173c6311c464f7ba9

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            409825cd0c603bd92e487ec5ac408902

            SHA1

            f4d699b8f936c3bcda7eeec45ad8505240db5ed6

            SHA256

            d81c06f2d78e5d0984db2f2741c40b4a4684e930d24e7163aacce8dc1b74d201

            SHA512

            2c9e4a9a6811ee85945f91798cb4498efd4b433cbfefbbd308164e2d1c85b487b733438acb55e299b267aa86754e5edbe4a4e72434592b6aa6e9d1653bfb82cd

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            409825cd0c603bd92e487ec5ac408902

            SHA1

            f4d699b8f936c3bcda7eeec45ad8505240db5ed6

            SHA256

            d81c06f2d78e5d0984db2f2741c40b4a4684e930d24e7163aacce8dc1b74d201

            SHA512

            2c9e4a9a6811ee85945f91798cb4498efd4b433cbfefbbd308164e2d1c85b487b733438acb55e299b267aa86754e5edbe4a4e72434592b6aa6e9d1653bfb82cd

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            6f3327e0752d38069248b297889a6ad2

            SHA1

            af568193a9df7ef2c2e813c04e36b299010a4761

            SHA256

            51f6d18d68424d64dab395796fd0b30751d26fada4466a659cf2cde4cae0b698

            SHA512

            b8418f0016fddd6cb934b74b02efc8e235bc5672e82c53e19e2f19f9f4e4ed6c3a965670b76028c749d67f2cb57cc5c6f38763994b250abc371bfeccee00b5e1

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5a6f10603da0e509550f6bac48849b2f

            SHA1

            31e210e789845d4c0b1f48a106a6a364454a1ed9

            SHA256

            da09db4643fccdddf3e16b2f6f063ed8b647068db883bb862a121f98a0e4fa41

            SHA512

            b25b600b4b41ba81a9ed0d763161d78715bfc885257113f4a40959a3de61db0c279c26f92a428a2f2b542d9ead22caa14ec0280fb1b715de1d550ac04cdcbcc1

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            16e924b7138c0e02d1aea973352a0fa1

            SHA1

            6c6783edde9c7311774453cd2cfda3dcf235c5dc

            SHA256

            a6946cde32404c24df3707f2b3ad1f2095207324a6245aa83a7a9c8f5ebb937d

            SHA512

            15f75c01981990a83f565992a28a0222aaac898ebdf57ed75316a4952801387e2245b49aac0c89e0cf5429bfe22c369684f2c4b53804abc7dd3e7014f2236e80

          • memory/364-86-0x0000000000000000-mapping.dmp

          • memory/756-69-0x0000000000000000-mapping.dmp

          • memory/952-79-0x0000000000000000-mapping.dmp

          • memory/1096-63-0x0000000000000000-mapping.dmp

          • memory/1356-75-0x0000000000000000-mapping.dmp

          • memory/1500-60-0x0000000000000000-mapping.dmp

          • memory/1532-85-0x0000000000000000-mapping.dmp

          • memory/1632-58-0x0000000000000000-mapping.dmp

          • memory/1648-61-0x0000000000000000-mapping.dmp

          • memory/1672-54-0x0000000075BD1000-0x0000000075BD3000-memory.dmp

            Filesize

            8KB

          • memory/1680-80-0x0000000000000000-mapping.dmp

          • memory/1980-57-0x0000000000000000-mapping.dmp