Analysis

  • max time kernel
    61s
  • 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 10:57

General

  • Target

    4698d76a460b9d0197cfef4a92495948d5719770cafd6948df50b745b30f7989.exe

  • Size

    446KB

  • MD5

    be9a0cdb2589271f542155efb953cdef

  • SHA1

    992fc97bf357d05c0eab75a5b08b9bd6c6e8a88c

  • SHA256

    4698d76a460b9d0197cfef4a92495948d5719770cafd6948df50b745b30f7989

  • SHA512

    cf6b6ec6989240ef0e9ea535800041ceb6e111d9e1f49f17e644b2dd245dafe09f4d45b44b3e019aab0c10fdf45f32b6acd68e603a4a99673e0982b07c140985

  • SSDEEP

    12288:VzK0noiP5m5lKIgkng2IyJ5Fz7nLFON6bA9k:Vt9OKInIytZy6bGk

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\4698d76a460b9d0197cfef4a92495948d5719770cafd6948df50b745b30f7989.exe
    "C:\Users\Admin\AppData\Local\Temp\4698d76a460b9d0197cfef4a92495948d5719770cafd6948df50b745b30f7989.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:484
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1072
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1248
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:772
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1028
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1500
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1364
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1760
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1540
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1484
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1320
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1188
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1632
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1828

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0dee574af62f82b2126e7654bc3a50d4

            SHA1

            fda2ff71b088ce1fcca759ffacd9f00c06951099

            SHA256

            2138a34aa1371f29fc944f74e2f2d74891b2b6be9057e9250c3c6c676e708e9f

            SHA512

            d78101302455b34fa3cf4377e077836235274edcbc3905f353c69d30ed023c51749e9c349c0b607f1f5af42522d03a5290222c173e3eaae056b1ba83c88103a1

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            817d94cfeeb3603d2edf34029844af48

            SHA1

            13dfdf2e56c9b8e62a02dcfbd39dc186ce0ff050

            SHA256

            7f2cde780bb382e8f2edeadd193238e3325777c2e7bee89cbf6a492def15c1ba

            SHA512

            ef3e7a46a393abab73af5a6fb1f88fcb64ba4435984b2c7e1956eb87dd4f26298abe7d885259253eb3da036a43c5353286c9649c56682baf1fd838ff3fc006d1

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            75ae1c8faff5a94592fd69eb4f5be0c7

            SHA1

            622717f63b4876bf26f8b0304247106863680bd2

            SHA256

            03660c4fcb1537ca16c16450bdde541a773faad00ab5d73bed9387644f99d820

            SHA512

            957c7e32ee60686083ffd04a3b22f694c8fe6cf5f902408e9e49dac57cc1437abee9e590a66351c7cfde76488469b9a37f1d8b1ab15460aa5f0f03a1e8d16e30

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            39f164f3bcb6170e9e6c0765f8c5b2a8

            SHA1

            e39fe13e1759d1b48169e823bf07eff7b70bc322

            SHA256

            702d10a1c1a7e511341d7cdafdfb9fce4be5ce6ff99ae676d7a8546de41b1c56

            SHA512

            bc60a89c80a07954a335756e9b739056e4e140f3bdc4f430d1fd38e31b92aee8f6d1f0349927080c3a7f9e9b6aa8dec0c4128331473046cf5dbb078667dfaef7

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            39f164f3bcb6170e9e6c0765f8c5b2a8

            SHA1

            e39fe13e1759d1b48169e823bf07eff7b70bc322

            SHA256

            702d10a1c1a7e511341d7cdafdfb9fce4be5ce6ff99ae676d7a8546de41b1c56

            SHA512

            bc60a89c80a07954a335756e9b739056e4e140f3bdc4f430d1fd38e31b92aee8f6d1f0349927080c3a7f9e9b6aa8dec0c4128331473046cf5dbb078667dfaef7

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            fc83aff8700223656754f7ef2fb2bcdf

            SHA1

            86063193472cb5eafa7ea91e557bd044d0474923

            SHA256

            22683d678c768143b6cd6f6754ec5c5f8c0bb1e7a1891e410d6b6afedf310e39

            SHA512

            408eb33c41e1cdfe62295f32930401e12fb88abeb4ea1743d97df8cb6d642e0934f65bff63f042b7ac89bcaa7ce73a17393e34c3fa51dfe712cfb9e3298e8667

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            fc83aff8700223656754f7ef2fb2bcdf

            SHA1

            86063193472cb5eafa7ea91e557bd044d0474923

            SHA256

            22683d678c768143b6cd6f6754ec5c5f8c0bb1e7a1891e410d6b6afedf310e39

            SHA512

            408eb33c41e1cdfe62295f32930401e12fb88abeb4ea1743d97df8cb6d642e0934f65bff63f042b7ac89bcaa7ce73a17393e34c3fa51dfe712cfb9e3298e8667

          • \Users\Admin\AppData\Local\Temp\nsoF460.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoF460.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF460.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF460.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF460.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0dee574af62f82b2126e7654bc3a50d4

            SHA1

            fda2ff71b088ce1fcca759ffacd9f00c06951099

            SHA256

            2138a34aa1371f29fc944f74e2f2d74891b2b6be9057e9250c3c6c676e708e9f

            SHA512

            d78101302455b34fa3cf4377e077836235274edcbc3905f353c69d30ed023c51749e9c349c0b607f1f5af42522d03a5290222c173e3eaae056b1ba83c88103a1

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0dee574af62f82b2126e7654bc3a50d4

            SHA1

            fda2ff71b088ce1fcca759ffacd9f00c06951099

            SHA256

            2138a34aa1371f29fc944f74e2f2d74891b2b6be9057e9250c3c6c676e708e9f

            SHA512

            d78101302455b34fa3cf4377e077836235274edcbc3905f353c69d30ed023c51749e9c349c0b607f1f5af42522d03a5290222c173e3eaae056b1ba83c88103a1

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0dee574af62f82b2126e7654bc3a50d4

            SHA1

            fda2ff71b088ce1fcca759ffacd9f00c06951099

            SHA256

            2138a34aa1371f29fc944f74e2f2d74891b2b6be9057e9250c3c6c676e708e9f

            SHA512

            d78101302455b34fa3cf4377e077836235274edcbc3905f353c69d30ed023c51749e9c349c0b607f1f5af42522d03a5290222c173e3eaae056b1ba83c88103a1

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            817d94cfeeb3603d2edf34029844af48

            SHA1

            13dfdf2e56c9b8e62a02dcfbd39dc186ce0ff050

            SHA256

            7f2cde780bb382e8f2edeadd193238e3325777c2e7bee89cbf6a492def15c1ba

            SHA512

            ef3e7a46a393abab73af5a6fb1f88fcb64ba4435984b2c7e1956eb87dd4f26298abe7d885259253eb3da036a43c5353286c9649c56682baf1fd838ff3fc006d1

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            817d94cfeeb3603d2edf34029844af48

            SHA1

            13dfdf2e56c9b8e62a02dcfbd39dc186ce0ff050

            SHA256

            7f2cde780bb382e8f2edeadd193238e3325777c2e7bee89cbf6a492def15c1ba

            SHA512

            ef3e7a46a393abab73af5a6fb1f88fcb64ba4435984b2c7e1956eb87dd4f26298abe7d885259253eb3da036a43c5353286c9649c56682baf1fd838ff3fc006d1

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            75ae1c8faff5a94592fd69eb4f5be0c7

            SHA1

            622717f63b4876bf26f8b0304247106863680bd2

            SHA256

            03660c4fcb1537ca16c16450bdde541a773faad00ab5d73bed9387644f99d820

            SHA512

            957c7e32ee60686083ffd04a3b22f694c8fe6cf5f902408e9e49dac57cc1437abee9e590a66351c7cfde76488469b9a37f1d8b1ab15460aa5f0f03a1e8d16e30

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            39f164f3bcb6170e9e6c0765f8c5b2a8

            SHA1

            e39fe13e1759d1b48169e823bf07eff7b70bc322

            SHA256

            702d10a1c1a7e511341d7cdafdfb9fce4be5ce6ff99ae676d7a8546de41b1c56

            SHA512

            bc60a89c80a07954a335756e9b739056e4e140f3bdc4f430d1fd38e31b92aee8f6d1f0349927080c3a7f9e9b6aa8dec0c4128331473046cf5dbb078667dfaef7

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            fc83aff8700223656754f7ef2fb2bcdf

            SHA1

            86063193472cb5eafa7ea91e557bd044d0474923

            SHA256

            22683d678c768143b6cd6f6754ec5c5f8c0bb1e7a1891e410d6b6afedf310e39

            SHA512

            408eb33c41e1cdfe62295f32930401e12fb88abeb4ea1743d97df8cb6d642e0934f65bff63f042b7ac89bcaa7ce73a17393e34c3fa51dfe712cfb9e3298e8667

          • memory/484-54-0x0000000074D71000-0x0000000074D73000-memory.dmp
            Filesize

            8KB

          • memory/772-60-0x0000000000000000-mapping.dmp
          • memory/1028-61-0x0000000000000000-mapping.dmp
          • memory/1072-57-0x0000000000000000-mapping.dmp
          • memory/1188-86-0x0000000000000000-mapping.dmp
          • memory/1248-58-0x0000000000000000-mapping.dmp
          • memory/1320-85-0x0000000000000000-mapping.dmp
          • memory/1364-69-0x0000000000000000-mapping.dmp
          • memory/1484-80-0x0000000000000000-mapping.dmp
          • memory/1500-63-0x0000000000000000-mapping.dmp
          • memory/1540-79-0x0000000000000000-mapping.dmp
          • memory/1760-75-0x0000000000000000-mapping.dmp