Analysis

  • max time kernel
    26s
  • 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 10:57

General

  • Target

    483884e9e0302305078fd649be81d3a28d1050a4ebfd7d356080456b65c02ba8.exe

  • Size

    447KB

  • MD5

    76516867adba9af06726c169512759eb

  • SHA1

    3b21e002eb5a9ece26d0543c1c4c5714c8a450bf

  • SHA256

    483884e9e0302305078fd649be81d3a28d1050a4ebfd7d356080456b65c02ba8

  • SHA512

    c95a05ed281e50db8238c678472d93543c6c77c38f8d93a7315c0fdc9bf171a6f5cef49b58b510c4731b318d8d90bf591b0ab021f5f74203d4816507c7bcc933

  • SSDEEP

    12288:FxokV33T7AstkuTgN2qUAaFj4r5RLW9KfXY:FxoaDzk7wq5RLCl

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\483884e9e0302305078fd649be81d3a28d1050a4ebfd7d356080456b65c02ba8.exe
    "C:\Users\Admin\AppData\Local\Temp\483884e9e0302305078fd649be81d3a28d1050a4ebfd7d356080456b65c02ba8.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:996
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1740
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:628
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:860
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2028
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:896
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1384
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:980
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2008
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1160
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1632
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1680
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1620
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1336

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b62623431aca8571f2f7290a409347d

            SHA1

            50088996777faa62c93e16cc279a6f42517bc22f

            SHA256

            260d2ced6c29ceb7418dd56d1e4e8bcac9acb673016f92bba697657d040ab9fe

            SHA512

            4946b6dfd8ef8469e2f770e534d9bafd2c053ce8b4159f8b580506d6faa52345c586112074ad40d69834d6bdc10a8f61bec2e27325f378563d1671e3af9072d0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            64e96465bffa879afb344c6000d75266

            SHA1

            b4931cdfeed78c2e35d954bdab1bba7112a6a4c8

            SHA256

            ac29ea69b5f48f3b50c5daff277e2aa6d7beee5077347d1fd1f825a098ffc9e9

            SHA512

            98a01508c4c2df4777ec2f7d58607a26bde2d00b34b5ad8fcee544bdede78277748c778b87bcc53325b4ec7288b3958d42455712251d0ae76d510d499ff89ae8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            859e57f27302b30f4ad04b9bff5283ae

            SHA1

            418c39abc0dbc9963fe2d1f9f5e267fc00f98589

            SHA256

            579dd30667aace49b825dc22da4d5f54ef4e521873357cc22be3a642407412e8

            SHA512

            0d59972880a8329d7be519492364a8a05ccc322b88ce9c1f40daa853679d0e45f54795a2caa51c3ca8c6cedfe846a09d1885b6a0639b9263236143bb2fcb9533

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0cd60042855ce720deeac96a1dbda06d

            SHA1

            c0b36a48e724715e7bd1a717e1a57fef40db2b61

            SHA256

            8c6f119f213540cfb02aa2090f2d02711b8a7af3459e333dc74015ec722abd85

            SHA512

            d18e655b95bd84b4ccf2958f698538878eabfbb5530e486d4e2bc55097644d49de81e2f743a402bb6e7d19336468f277bdc6c94573d7bb6b28196ef64b8caeb2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0cd60042855ce720deeac96a1dbda06d

            SHA1

            c0b36a48e724715e7bd1a717e1a57fef40db2b61

            SHA256

            8c6f119f213540cfb02aa2090f2d02711b8a7af3459e333dc74015ec722abd85

            SHA512

            d18e655b95bd84b4ccf2958f698538878eabfbb5530e486d4e2bc55097644d49de81e2f743a402bb6e7d19336468f277bdc6c94573d7bb6b28196ef64b8caeb2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fe4941d327ff8660ca427e0eff5d6c71

            SHA1

            440f7b5f1da07eed47895ee56f112d730b96d653

            SHA256

            dc8faf92bce6e5e9d8b95a46c3e658c2d4c24d4cf6667dcb95e5c2140726018f

            SHA512

            3e069bcb5812ec3638f0e3201804675e462fc8286e6acbd06898030409aa6c8f568f8753410cae67d620f8b820faea035a3d13068931d3f45d3987aec6be4b90

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fe4941d327ff8660ca427e0eff5d6c71

            SHA1

            440f7b5f1da07eed47895ee56f112d730b96d653

            SHA256

            dc8faf92bce6e5e9d8b95a46c3e658c2d4c24d4cf6667dcb95e5c2140726018f

            SHA512

            3e069bcb5812ec3638f0e3201804675e462fc8286e6acbd06898030409aa6c8f568f8753410cae67d620f8b820faea035a3d13068931d3f45d3987aec6be4b90

          • \Users\Admin\AppData\Local\Temp\nsd427F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd427F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd427F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd427F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd427F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b62623431aca8571f2f7290a409347d

            SHA1

            50088996777faa62c93e16cc279a6f42517bc22f

            SHA256

            260d2ced6c29ceb7418dd56d1e4e8bcac9acb673016f92bba697657d040ab9fe

            SHA512

            4946b6dfd8ef8469e2f770e534d9bafd2c053ce8b4159f8b580506d6faa52345c586112074ad40d69834d6bdc10a8f61bec2e27325f378563d1671e3af9072d0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b62623431aca8571f2f7290a409347d

            SHA1

            50088996777faa62c93e16cc279a6f42517bc22f

            SHA256

            260d2ced6c29ceb7418dd56d1e4e8bcac9acb673016f92bba697657d040ab9fe

            SHA512

            4946b6dfd8ef8469e2f770e534d9bafd2c053ce8b4159f8b580506d6faa52345c586112074ad40d69834d6bdc10a8f61bec2e27325f378563d1671e3af9072d0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            0b62623431aca8571f2f7290a409347d

            SHA1

            50088996777faa62c93e16cc279a6f42517bc22f

            SHA256

            260d2ced6c29ceb7418dd56d1e4e8bcac9acb673016f92bba697657d040ab9fe

            SHA512

            4946b6dfd8ef8469e2f770e534d9bafd2c053ce8b4159f8b580506d6faa52345c586112074ad40d69834d6bdc10a8f61bec2e27325f378563d1671e3af9072d0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            64e96465bffa879afb344c6000d75266

            SHA1

            b4931cdfeed78c2e35d954bdab1bba7112a6a4c8

            SHA256

            ac29ea69b5f48f3b50c5daff277e2aa6d7beee5077347d1fd1f825a098ffc9e9

            SHA512

            98a01508c4c2df4777ec2f7d58607a26bde2d00b34b5ad8fcee544bdede78277748c778b87bcc53325b4ec7288b3958d42455712251d0ae76d510d499ff89ae8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            64e96465bffa879afb344c6000d75266

            SHA1

            b4931cdfeed78c2e35d954bdab1bba7112a6a4c8

            SHA256

            ac29ea69b5f48f3b50c5daff277e2aa6d7beee5077347d1fd1f825a098ffc9e9

            SHA512

            98a01508c4c2df4777ec2f7d58607a26bde2d00b34b5ad8fcee544bdede78277748c778b87bcc53325b4ec7288b3958d42455712251d0ae76d510d499ff89ae8

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            859e57f27302b30f4ad04b9bff5283ae

            SHA1

            418c39abc0dbc9963fe2d1f9f5e267fc00f98589

            SHA256

            579dd30667aace49b825dc22da4d5f54ef4e521873357cc22be3a642407412e8

            SHA512

            0d59972880a8329d7be519492364a8a05ccc322b88ce9c1f40daa853679d0e45f54795a2caa51c3ca8c6cedfe846a09d1885b6a0639b9263236143bb2fcb9533

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0cd60042855ce720deeac96a1dbda06d

            SHA1

            c0b36a48e724715e7bd1a717e1a57fef40db2b61

            SHA256

            8c6f119f213540cfb02aa2090f2d02711b8a7af3459e333dc74015ec722abd85

            SHA512

            d18e655b95bd84b4ccf2958f698538878eabfbb5530e486d4e2bc55097644d49de81e2f743a402bb6e7d19336468f277bdc6c94573d7bb6b28196ef64b8caeb2

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fe4941d327ff8660ca427e0eff5d6c71

            SHA1

            440f7b5f1da07eed47895ee56f112d730b96d653

            SHA256

            dc8faf92bce6e5e9d8b95a46c3e658c2d4c24d4cf6667dcb95e5c2140726018f

            SHA512

            3e069bcb5812ec3638f0e3201804675e462fc8286e6acbd06898030409aa6c8f568f8753410cae67d620f8b820faea035a3d13068931d3f45d3987aec6be4b90

          • memory/628-58-0x0000000000000000-mapping.dmp

          • memory/860-60-0x0000000000000000-mapping.dmp

          • memory/896-63-0x0000000000000000-mapping.dmp

          • memory/980-75-0x0000000000000000-mapping.dmp

          • memory/996-54-0x0000000075E11000-0x0000000075E13000-memory.dmp

            Filesize

            8KB

          • memory/1160-80-0x0000000000000000-mapping.dmp

          • memory/1384-69-0x0000000000000000-mapping.dmp

          • memory/1632-85-0x0000000000000000-mapping.dmp

          • memory/1680-86-0x0000000000000000-mapping.dmp

          • memory/1740-57-0x0000000000000000-mapping.dmp

          • memory/2008-79-0x0000000000000000-mapping.dmp

          • memory/2028-61-0x0000000000000000-mapping.dmp