Analysis

  • max time kernel
    157s
  • max time network
    199s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:58

General

  • Target

    31d1ab9f40cb1043da3733d0cb244bebc344349a99acf5da0e66d3c2c68cd6a0.exe

  • Size

    445KB

  • MD5

    f52c65b8a2c478cec610519679536ec6

  • SHA1

    70273c8daff6be44bd0d123c2da91cd882f29908

  • SHA256

    31d1ab9f40cb1043da3733d0cb244bebc344349a99acf5da0e66d3c2c68cd6a0

  • SHA512

    e70566b320b92ef9ba17e56caa93d67eafe86ebb8c7051b4437f4ab12ea62c8494ebfcf3c4084e7132b758f04982f4851798c19650320e2db282768a1f099af5

  • SSDEEP

    12288:b1ZTgPKumoCSNphgc98SY3KiTUDNLq5vmEFQxypORea66R713:b1ZboCSN4cKPZTUM53pO1j

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\31d1ab9f40cb1043da3733d0cb244bebc344349a99acf5da0e66d3c2c68cd6a0.exe
    "C:\Users\Admin\AppData\Local\Temp\31d1ab9f40cb1043da3733d0cb244bebc344349a99acf5da0e66d3c2c68cd6a0.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:3796
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2924
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:260
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3632
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2068
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5000
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1660
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1420
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3900
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:856
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1264
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1212
          • 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:372
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3172

          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:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsq54AA.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            ff7e5a4953e5a616fd4eaac0e080a221

            SHA1

            1bb5f48ff6d2c333cbd15fcac1cde2cc825513eb

            SHA256

            3fea2ef124fb7ef962f80c80a8357bac4bef889035b11f40ea8bfc9fb7989515

            SHA512

            90a84fbc35e65f600a07519f3c07be41fd246dc730ff9e5766845eb0fa1bf849a7111902479e32f782ab633c7f612dbac9ed4f1e5af543bc84c3255969a55cca

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

            106KB

            MD5

            ff7e5a4953e5a616fd4eaac0e080a221

            SHA1

            1bb5f48ff6d2c333cbd15fcac1cde2cc825513eb

            SHA256

            3fea2ef124fb7ef962f80c80a8357bac4bef889035b11f40ea8bfc9fb7989515

            SHA512

            90a84fbc35e65f600a07519f3c07be41fd246dc730ff9e5766845eb0fa1bf849a7111902479e32f782ab633c7f612dbac9ed4f1e5af543bc84c3255969a55cca

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

            106KB

            MD5

            ff7e5a4953e5a616fd4eaac0e080a221

            SHA1

            1bb5f48ff6d2c333cbd15fcac1cde2cc825513eb

            SHA256

            3fea2ef124fb7ef962f80c80a8357bac4bef889035b11f40ea8bfc9fb7989515

            SHA512

            90a84fbc35e65f600a07519f3c07be41fd246dc730ff9e5766845eb0fa1bf849a7111902479e32f782ab633c7f612dbac9ed4f1e5af543bc84c3255969a55cca

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

            106KB

            MD5

            ff7e5a4953e5a616fd4eaac0e080a221

            SHA1

            1bb5f48ff6d2c333cbd15fcac1cde2cc825513eb

            SHA256

            3fea2ef124fb7ef962f80c80a8357bac4bef889035b11f40ea8bfc9fb7989515

            SHA512

            90a84fbc35e65f600a07519f3c07be41fd246dc730ff9e5766845eb0fa1bf849a7111902479e32f782ab633c7f612dbac9ed4f1e5af543bc84c3255969a55cca

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

            241KB

            MD5

            c2e7e27148805f6120e3c1853984d853

            SHA1

            b99b1cae9ce93b77955bc9d4e115d9663b0a0b90

            SHA256

            1702c4afdb8acab3de3ccf42920204156f873bf174303cb55143caa85226627f

            SHA512

            bea770364151013943394b978ddc62f9f8bac01bd3d2dbcec03b7431e4ad2126ef95944e8ef6215cefde0c50947de52da48d73a8701ed494c70338fdd7fb9500

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

            241KB

            MD5

            c2e7e27148805f6120e3c1853984d853

            SHA1

            b99b1cae9ce93b77955bc9d4e115d9663b0a0b90

            SHA256

            1702c4afdb8acab3de3ccf42920204156f873bf174303cb55143caa85226627f

            SHA512

            bea770364151013943394b978ddc62f9f8bac01bd3d2dbcec03b7431e4ad2126ef95944e8ef6215cefde0c50947de52da48d73a8701ed494c70338fdd7fb9500

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

            241KB

            MD5

            c2e7e27148805f6120e3c1853984d853

            SHA1

            b99b1cae9ce93b77955bc9d4e115d9663b0a0b90

            SHA256

            1702c4afdb8acab3de3ccf42920204156f873bf174303cb55143caa85226627f

            SHA512

            bea770364151013943394b978ddc62f9f8bac01bd3d2dbcec03b7431e4ad2126ef95944e8ef6215cefde0c50947de52da48d73a8701ed494c70338fdd7fb9500

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

            108KB

            MD5

            ead87bac415d0a51b67c7ebaf7f69285

            SHA1

            e7db54efd7021e4173df7e53c16eb24aa65bec31

            SHA256

            013c83fcbb5ec17bad8244ed13c6f554b5fbb02f27d41be3ca3da3a8b4d8309a

            SHA512

            743c9dec300feb034ca0526c54bb652872518cfca4803c8f10c80fa7d32f507f7075a45429fb7be39be0fe774e5fd1d171441b3fc9d9ca83bda4c005ca55cd0d

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

            108KB

            MD5

            ead87bac415d0a51b67c7ebaf7f69285

            SHA1

            e7db54efd7021e4173df7e53c16eb24aa65bec31

            SHA256

            013c83fcbb5ec17bad8244ed13c6f554b5fbb02f27d41be3ca3da3a8b4d8309a

            SHA512

            743c9dec300feb034ca0526c54bb652872518cfca4803c8f10c80fa7d32f507f7075a45429fb7be39be0fe774e5fd1d171441b3fc9d9ca83bda4c005ca55cd0d

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

            176KB

            MD5

            a9a9b4fe9b61b82bdac3cbd32d38321b

            SHA1

            28774231224ce4e50ee42d8b05ee52630d444303

            SHA256

            fce34191efb0768605c035507814ed30ce4503b85116ab536417988c254d98a5

            SHA512

            ed5c4696ba71a471d835087d2a542a3011866ba448a9b66d1d7ca24a2698c6c0fd04676ba1200731ff9e20f023fc5358d6697a5f0da4e9ce2a7f2275099ac666

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

            176KB

            MD5

            a9a9b4fe9b61b82bdac3cbd32d38321b

            SHA1

            28774231224ce4e50ee42d8b05ee52630d444303

            SHA256

            fce34191efb0768605c035507814ed30ce4503b85116ab536417988c254d98a5

            SHA512

            ed5c4696ba71a471d835087d2a542a3011866ba448a9b66d1d7ca24a2698c6c0fd04676ba1200731ff9e20f023fc5358d6697a5f0da4e9ce2a7f2275099ac666

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

            176KB

            MD5

            a9a9b4fe9b61b82bdac3cbd32d38321b

            SHA1

            28774231224ce4e50ee42d8b05ee52630d444303

            SHA256

            fce34191efb0768605c035507814ed30ce4503b85116ab536417988c254d98a5

            SHA512

            ed5c4696ba71a471d835087d2a542a3011866ba448a9b66d1d7ca24a2698c6c0fd04676ba1200731ff9e20f023fc5358d6697a5f0da4e9ce2a7f2275099ac666

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

            158KB

            MD5

            f7bf3e520944113677b08bd579622fe4

            SHA1

            b15784e3e15969b6c508cc30ace0d75ae0ff85b7

            SHA256

            3e3dd6e2eb7f8c15966b96dcf6e4b09f4d611125c2c5af00c1bac0440037ec22

            SHA512

            1a8e355e94b262444479d0803efc6dd41e2eac93c50f31a5ac38686c2b5713b2e00ccbe8936edf174b623d13f52d540c81ebce3d1b113d4b7868046c6fa51f88

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

            158KB

            MD5

            f7bf3e520944113677b08bd579622fe4

            SHA1

            b15784e3e15969b6c508cc30ace0d75ae0ff85b7

            SHA256

            3e3dd6e2eb7f8c15966b96dcf6e4b09f4d611125c2c5af00c1bac0440037ec22

            SHA512

            1a8e355e94b262444479d0803efc6dd41e2eac93c50f31a5ac38686c2b5713b2e00ccbe8936edf174b623d13f52d540c81ebce3d1b113d4b7868046c6fa51f88

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

            158KB

            MD5

            f7bf3e520944113677b08bd579622fe4

            SHA1

            b15784e3e15969b6c508cc30ace0d75ae0ff85b7

            SHA256

            3e3dd6e2eb7f8c15966b96dcf6e4b09f4d611125c2c5af00c1bac0440037ec22

            SHA512

            1a8e355e94b262444479d0803efc6dd41e2eac93c50f31a5ac38686c2b5713b2e00ccbe8936edf174b623d13f52d540c81ebce3d1b113d4b7868046c6fa51f88

          • memory/260-136-0x0000000000000000-mapping.dmp
          • memory/856-158-0x0000000000000000-mapping.dmp
          • memory/1212-165-0x0000000000000000-mapping.dmp
          • memory/1264-164-0x0000000000000000-mapping.dmp
          • memory/1420-152-0x0000000000000000-mapping.dmp
          • memory/1660-146-0x0000000000000000-mapping.dmp
          • memory/2068-140-0x0000000000000000-mapping.dmp
          • memory/2924-135-0x0000000000000000-mapping.dmp
          • memory/3632-139-0x0000000000000000-mapping.dmp
          • memory/3900-157-0x0000000000000000-mapping.dmp
          • memory/5000-141-0x0000000000000000-mapping.dmp