Analysis

  • max time kernel
    86s
  • max time network
    150s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    72d2e3658ffa4728cbe8f00f9b39486719d594e23adebf2eafebc12122386139.exe

  • Size

    603KB

  • MD5

    fab65cb6c91b5ad077e93b9982c62703

  • SHA1

    f748d99c9ce2b8871188ee0f3721b1c104c2f953

  • SHA256

    72d2e3658ffa4728cbe8f00f9b39486719d594e23adebf2eafebc12122386139

  • SHA512

    b23dd3d1e78750683e5e4bddbafca1df28941032de5dc67a2d15053bb7c76101b31aec6ee45a87b758f643d5dba5c3b1eb0aed0285e0eb8c8a7578348f9b1102

  • SSDEEP

    12288:qIny5DYTMI7q4wYk1lVZU+hherQlCbmwkTam+JD:sUTM94qTZUrQlsGaRD

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\72d2e3658ffa4728cbe8f00f9b39486719d594e23adebf2eafebc12122386139.exe
    "C:\Users\Admin\AppData\Local\Temp\72d2e3658ffa4728cbe8f00f9b39486719d594e23adebf2eafebc12122386139.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:2912
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2280
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2996
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4108
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1336
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3320
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2504
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:224
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4076
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2508
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3056
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:540
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3788
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4380

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsuE0B2.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            089b5e8d66d9ea8dc7876bc9c1f7cba4

            SHA1

            085d0548165e3e5304a2ffef32be4e68d581c317

            SHA256

            8728ea451bd1d79599ef2379a9cd31783658f1c96a3d42bd9f36cc4d630ea531

            SHA512

            5bde3da117f1abf68a569690a03accc3392589214308f422807d8e235db9af1cf3e58e91a50fb5a2d5a4fc9e2a48713e02b2d261ae5238df19ed3baca7ac8137

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            089b5e8d66d9ea8dc7876bc9c1f7cba4

            SHA1

            085d0548165e3e5304a2ffef32be4e68d581c317

            SHA256

            8728ea451bd1d79599ef2379a9cd31783658f1c96a3d42bd9f36cc4d630ea531

            SHA512

            5bde3da117f1abf68a569690a03accc3392589214308f422807d8e235db9af1cf3e58e91a50fb5a2d5a4fc9e2a48713e02b2d261ae5238df19ed3baca7ac8137

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            089b5e8d66d9ea8dc7876bc9c1f7cba4

            SHA1

            085d0548165e3e5304a2ffef32be4e68d581c317

            SHA256

            8728ea451bd1d79599ef2379a9cd31783658f1c96a3d42bd9f36cc4d630ea531

            SHA512

            5bde3da117f1abf68a569690a03accc3392589214308f422807d8e235db9af1cf3e58e91a50fb5a2d5a4fc9e2a48713e02b2d261ae5238df19ed3baca7ac8137

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            089b5e8d66d9ea8dc7876bc9c1f7cba4

            SHA1

            085d0548165e3e5304a2ffef32be4e68d581c317

            SHA256

            8728ea451bd1d79599ef2379a9cd31783658f1c96a3d42bd9f36cc4d630ea531

            SHA512

            5bde3da117f1abf68a569690a03accc3392589214308f422807d8e235db9af1cf3e58e91a50fb5a2d5a4fc9e2a48713e02b2d261ae5238df19ed3baca7ac8137

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9d0c2e09632b5dbfac5be8433ec42056

            SHA1

            59e7f0da73e6fb33ac5cb65b984bf9c22c0ffeb2

            SHA256

            d7073416a9e084a2bad563791412825ebd71fd658472dc84747f7fb80ffc1fac

            SHA512

            977d126676626e6d7ab43ce78b610b1ceda8a2940498ca55df67ea719e5b27dd21da146d880748e7a9e29d7dfc5ca09c56e9f98d13fdf8ce47d83d2f02a93611

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9d0c2e09632b5dbfac5be8433ec42056

            SHA1

            59e7f0da73e6fb33ac5cb65b984bf9c22c0ffeb2

            SHA256

            d7073416a9e084a2bad563791412825ebd71fd658472dc84747f7fb80ffc1fac

            SHA512

            977d126676626e6d7ab43ce78b610b1ceda8a2940498ca55df67ea719e5b27dd21da146d880748e7a9e29d7dfc5ca09c56e9f98d13fdf8ce47d83d2f02a93611

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9d0c2e09632b5dbfac5be8433ec42056

            SHA1

            59e7f0da73e6fb33ac5cb65b984bf9c22c0ffeb2

            SHA256

            d7073416a9e084a2bad563791412825ebd71fd658472dc84747f7fb80ffc1fac

            SHA512

            977d126676626e6d7ab43ce78b610b1ceda8a2940498ca55df67ea719e5b27dd21da146d880748e7a9e29d7dfc5ca09c56e9f98d13fdf8ce47d83d2f02a93611

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f885abf53e5937460b532496dd5dd52a

            SHA1

            dd73d3162ceba6cf2c45343b45556a0167344084

            SHA256

            080ba90b6427bfa07908159d0828a9fa72cb9f32bb9e33e15ba3dc9d276d9a36

            SHA512

            27b14358448b1a619c9b737f5a5b0eab243f428f9bf53dedac6416a92653b1e635b865d58deb2c863118a10ddac20fdfe0c3a15c98dfcc4c548cdef35d66f1bb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f885abf53e5937460b532496dd5dd52a

            SHA1

            dd73d3162ceba6cf2c45343b45556a0167344084

            SHA256

            080ba90b6427bfa07908159d0828a9fa72cb9f32bb9e33e15ba3dc9d276d9a36

            SHA512

            27b14358448b1a619c9b737f5a5b0eab243f428f9bf53dedac6416a92653b1e635b865d58deb2c863118a10ddac20fdfe0c3a15c98dfcc4c548cdef35d66f1bb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            869efda1ab31c7f95314be586a933bf6

            SHA1

            782378e70855371790438a600adce94585e22c37

            SHA256

            9080252f1ae86985e6579a5cdba0e9f08a74d58d08eb61d7ef771991bf572565

            SHA512

            d05635c20c39ff71025745b05171c35ce9483d1c42e08891a267700355ff47fed73ac3e9361dc4ce33bf1dab5acea33693d2afec1b39eb0951fa64df4806bbdd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            869efda1ab31c7f95314be586a933bf6

            SHA1

            782378e70855371790438a600adce94585e22c37

            SHA256

            9080252f1ae86985e6579a5cdba0e9f08a74d58d08eb61d7ef771991bf572565

            SHA512

            d05635c20c39ff71025745b05171c35ce9483d1c42e08891a267700355ff47fed73ac3e9361dc4ce33bf1dab5acea33693d2afec1b39eb0951fa64df4806bbdd

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            869efda1ab31c7f95314be586a933bf6

            SHA1

            782378e70855371790438a600adce94585e22c37

            SHA256

            9080252f1ae86985e6579a5cdba0e9f08a74d58d08eb61d7ef771991bf572565

            SHA512

            d05635c20c39ff71025745b05171c35ce9483d1c42e08891a267700355ff47fed73ac3e9361dc4ce33bf1dab5acea33693d2afec1b39eb0951fa64df4806bbdd

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            84638137e6efc60098726525ebac4832

            SHA1

            d2d2ec929eb51ebc4a3a9fb1f2ad4310e922a22d

            SHA256

            217e8fb887afcccdcad5dcfa13a7e01cd0d828bde47e60fdc83327825d0f4d99

            SHA512

            a7733828c0d830db0b488169ca4ab6b0021b61136be5d71bec3ff594ca413545ffda88ef6161e8a525077e6b008aab82ed074378fe56afc9265a7928bb7073b6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            84638137e6efc60098726525ebac4832

            SHA1

            d2d2ec929eb51ebc4a3a9fb1f2ad4310e922a22d

            SHA256

            217e8fb887afcccdcad5dcfa13a7e01cd0d828bde47e60fdc83327825d0f4d99

            SHA512

            a7733828c0d830db0b488169ca4ab6b0021b61136be5d71bec3ff594ca413545ffda88ef6161e8a525077e6b008aab82ed074378fe56afc9265a7928bb7073b6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            84638137e6efc60098726525ebac4832

            SHA1

            d2d2ec929eb51ebc4a3a9fb1f2ad4310e922a22d

            SHA256

            217e8fb887afcccdcad5dcfa13a7e01cd0d828bde47e60fdc83327825d0f4d99

            SHA512

            a7733828c0d830db0b488169ca4ab6b0021b61136be5d71bec3ff594ca413545ffda88ef6161e8a525077e6b008aab82ed074378fe56afc9265a7928bb7073b6

          • memory/224-153-0x0000000000000000-mapping.dmp

          • memory/540-166-0x0000000000000000-mapping.dmp

          • memory/1336-141-0x0000000000000000-mapping.dmp

          • memory/2280-136-0x0000000000000000-mapping.dmp

          • memory/2504-147-0x0000000000000000-mapping.dmp

          • memory/2508-159-0x0000000000000000-mapping.dmp

          • memory/2912-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2912-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2996-137-0x0000000000000000-mapping.dmp

          • memory/3056-165-0x0000000000000000-mapping.dmp

          • memory/3320-142-0x0000000000000000-mapping.dmp

          • memory/4076-158-0x0000000000000000-mapping.dmp

          • memory/4108-140-0x0000000000000000-mapping.dmp