Analysis

  • max time kernel
    43s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:12

General

  • Target

    cbdafeb0b7a60abe28d6ee42950f5805bbca352f691aecd73b31f1ed8204fc18.exe

  • Size

    603KB

  • MD5

    965c255ea0dff5ba1fe971405032892b

  • SHA1

    66254bbff7b680f93b942879d50f17b37151b73e

  • SHA256

    cbdafeb0b7a60abe28d6ee42950f5805bbca352f691aecd73b31f1ed8204fc18

  • SHA512

    76b591a7ee3fa1a53f62daa8e45a2c3cfa36dcaa02cdb2f4463366b4270b29955564d482fe9d83c350b9cf1495e67fec1723305d29eb0b5dafe6caa5ada8210d

  • SSDEEP

    12288:tIny5DYTMGgbpd2TbxgivcNlah85opfzOxW3oOSAe:5UTrg6BgKcDaC5oZzv37SV

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\cbdafeb0b7a60abe28d6ee42950f5805bbca352f691aecd73b31f1ed8204fc18.exe
    "C:\Users\Admin\AppData\Local\Temp\cbdafeb0b7a60abe28d6ee42950f5805bbca352f691aecd73b31f1ed8204fc18.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:1584
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1788
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:904
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1128
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1488
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:844
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1288
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1972
          • 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:820
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1560
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1964
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1912

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e26479ae69a2122df6b1b02bf50c1de3

            SHA1

            60717ef78f71071939ecaf7fb21c003ff384d533

            SHA256

            a84855892188dbb0597a1d06ec164e5c9b0e80bf5ce0929e9279baa1b3bd8b41

            SHA512

            bfc4a44f7ab1b1cf80cd9705028ed7b7ff1bc5c7767100e06a8898a30ed74849b2b03f497400ef8ad1503b90cd603c3f5947a5d5fabcb0999316a6a1f5c8c8fa

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d4e8ded2f55f50fb99379fe1a9a78241

            SHA1

            8708f4fba9baabfca6714a354dd888d6e11b9f2c

            SHA256

            b75b1ed6eb8061d955b2f448f1ad97b62f9a0d0bc30dc9fabf0a23844406f8de

            SHA512

            b763ada1d8f466a2ba63b513d26cbe71b783026d293e56ba6351ab56528ff565ffd02c82cfc7cbe8f5002c1791b1fea11f712687b9e28f2fb7e8351617a938ac

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ca06d7f53c2e1244a4cbe38048798c77

            SHA1

            faa3be557f777f2ee9fd51d9f0188c8a781f1c04

            SHA256

            46fc3bec1f6d6fd804a1bd55b9734baa5bd948f63881762ee5e1bcf1934fd67a

            SHA512

            e77fd1b6dc4bfbde3fe85dec0c83b8a8f0f64e5d691dd0dab9cdf6b2d59d9b31be7131d2edf1b19e70c7d2e8c3948274f720f60d630a942f461a93f5472c9a1c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c267c233b6ddf39e922ff0505b23eb10

            SHA1

            1d9501816f4ee43e1cde7e2a3debdd556abe7ae5

            SHA256

            13ac9cf8eff87a0a2f7d1087b9ba4e322985c65146862103bb1f73bc945dacd5

            SHA512

            84de3af3ca25a3d4aa55922921fc4a15824c53e66995da5736e343254c4798ed110062d4cf981354bef74cc219d7ace21cda60d53058349e4f2847b97b933177

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c267c233b6ddf39e922ff0505b23eb10

            SHA1

            1d9501816f4ee43e1cde7e2a3debdd556abe7ae5

            SHA256

            13ac9cf8eff87a0a2f7d1087b9ba4e322985c65146862103bb1f73bc945dacd5

            SHA512

            84de3af3ca25a3d4aa55922921fc4a15824c53e66995da5736e343254c4798ed110062d4cf981354bef74cc219d7ace21cda60d53058349e4f2847b97b933177

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4c23df77a21af816682936d68e695b2a

            SHA1

            0f3519b04e59acf52660ccd8a295c091893dddaa

            SHA256

            135f231ca2b9c922964e5c6b8eeda2c74e3e45709e79c86de29d7f4bff7b9152

            SHA512

            91b7852b9e8c70e85d76c45f9338874cd2b1bb796237e6ac1b73b25bbf27ee1d53433d14ad195a6cf3d4994406faec5190b1239365ecbb8839c1eb3b61305691

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4c23df77a21af816682936d68e695b2a

            SHA1

            0f3519b04e59acf52660ccd8a295c091893dddaa

            SHA256

            135f231ca2b9c922964e5c6b8eeda2c74e3e45709e79c86de29d7f4bff7b9152

            SHA512

            91b7852b9e8c70e85d76c45f9338874cd2b1bb796237e6ac1b73b25bbf27ee1d53433d14ad195a6cf3d4994406faec5190b1239365ecbb8839c1eb3b61305691

          • \Users\Admin\AppData\Local\Temp\nso45CA.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso45CA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso45CA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso45CA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso45CA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e26479ae69a2122df6b1b02bf50c1de3

            SHA1

            60717ef78f71071939ecaf7fb21c003ff384d533

            SHA256

            a84855892188dbb0597a1d06ec164e5c9b0e80bf5ce0929e9279baa1b3bd8b41

            SHA512

            bfc4a44f7ab1b1cf80cd9705028ed7b7ff1bc5c7767100e06a8898a30ed74849b2b03f497400ef8ad1503b90cd603c3f5947a5d5fabcb0999316a6a1f5c8c8fa

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e26479ae69a2122df6b1b02bf50c1de3

            SHA1

            60717ef78f71071939ecaf7fb21c003ff384d533

            SHA256

            a84855892188dbb0597a1d06ec164e5c9b0e80bf5ce0929e9279baa1b3bd8b41

            SHA512

            bfc4a44f7ab1b1cf80cd9705028ed7b7ff1bc5c7767100e06a8898a30ed74849b2b03f497400ef8ad1503b90cd603c3f5947a5d5fabcb0999316a6a1f5c8c8fa

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e26479ae69a2122df6b1b02bf50c1de3

            SHA1

            60717ef78f71071939ecaf7fb21c003ff384d533

            SHA256

            a84855892188dbb0597a1d06ec164e5c9b0e80bf5ce0929e9279baa1b3bd8b41

            SHA512

            bfc4a44f7ab1b1cf80cd9705028ed7b7ff1bc5c7767100e06a8898a30ed74849b2b03f497400ef8ad1503b90cd603c3f5947a5d5fabcb0999316a6a1f5c8c8fa

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d4e8ded2f55f50fb99379fe1a9a78241

            SHA1

            8708f4fba9baabfca6714a354dd888d6e11b9f2c

            SHA256

            b75b1ed6eb8061d955b2f448f1ad97b62f9a0d0bc30dc9fabf0a23844406f8de

            SHA512

            b763ada1d8f466a2ba63b513d26cbe71b783026d293e56ba6351ab56528ff565ffd02c82cfc7cbe8f5002c1791b1fea11f712687b9e28f2fb7e8351617a938ac

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d4e8ded2f55f50fb99379fe1a9a78241

            SHA1

            8708f4fba9baabfca6714a354dd888d6e11b9f2c

            SHA256

            b75b1ed6eb8061d955b2f448f1ad97b62f9a0d0bc30dc9fabf0a23844406f8de

            SHA512

            b763ada1d8f466a2ba63b513d26cbe71b783026d293e56ba6351ab56528ff565ffd02c82cfc7cbe8f5002c1791b1fea11f712687b9e28f2fb7e8351617a938ac

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ca06d7f53c2e1244a4cbe38048798c77

            SHA1

            faa3be557f777f2ee9fd51d9f0188c8a781f1c04

            SHA256

            46fc3bec1f6d6fd804a1bd55b9734baa5bd948f63881762ee5e1bcf1934fd67a

            SHA512

            e77fd1b6dc4bfbde3fe85dec0c83b8a8f0f64e5d691dd0dab9cdf6b2d59d9b31be7131d2edf1b19e70c7d2e8c3948274f720f60d630a942f461a93f5472c9a1c

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c267c233b6ddf39e922ff0505b23eb10

            SHA1

            1d9501816f4ee43e1cde7e2a3debdd556abe7ae5

            SHA256

            13ac9cf8eff87a0a2f7d1087b9ba4e322985c65146862103bb1f73bc945dacd5

            SHA512

            84de3af3ca25a3d4aa55922921fc4a15824c53e66995da5736e343254c4798ed110062d4cf981354bef74cc219d7ace21cda60d53058349e4f2847b97b933177

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4c23df77a21af816682936d68e695b2a

            SHA1

            0f3519b04e59acf52660ccd8a295c091893dddaa

            SHA256

            135f231ca2b9c922964e5c6b8eeda2c74e3e45709e79c86de29d7f4bff7b9152

            SHA512

            91b7852b9e8c70e85d76c45f9338874cd2b1bb796237e6ac1b73b25bbf27ee1d53433d14ad195a6cf3d4994406faec5190b1239365ecbb8839c1eb3b61305691

          • memory/820-86-0x0000000000000000-mapping.dmp

          • memory/844-64-0x0000000000000000-mapping.dmp

          • memory/904-59-0x0000000000000000-mapping.dmp

          • memory/1128-61-0x0000000000000000-mapping.dmp

          • memory/1288-76-0x0000000000000000-mapping.dmp

          • memory/1488-62-0x0000000000000000-mapping.dmp

          • memory/1560-87-0x0000000000000000-mapping.dmp

          • memory/1584-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

            Filesize

            8KB

          • memory/1584-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1584-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1640-70-0x0000000000000000-mapping.dmp

          • memory/1788-57-0x0000000000000000-mapping.dmp

          • memory/1968-81-0x0000000000000000-mapping.dmp

          • memory/1972-80-0x0000000000000000-mapping.dmp