Analysis

  • max time kernel
    190s
  • max time network
    234s
  • 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 10:25

General

  • Target

    59951d862fa654988445862912f3bc677f7acaac76b83611f1d2db8bf98387b2.exe

  • Size

    602KB

  • MD5

    88003399ee1b19fd54579e883146cf05

  • SHA1

    abda9304257315f093dc29b9d1267bb69ae5594b

  • SHA256

    59951d862fa654988445862912f3bc677f7acaac76b83611f1d2db8bf98387b2

  • SHA512

    a76bd5e50a79cccd273c87a80ac43c4b58595f225b1fbe41140d7924ea2d96a1b63afeef91331a686e8e5926f33091fc614b32a807cf60857129761bbc1ba874

  • SSDEEP

    12288:fIny5DYTg3GwFBGJXA9rrmgpJNcxM63ioxgo:HUTgb/GxgpjcxM63rxg

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\59951d862fa654988445862912f3bc677f7acaac76b83611f1d2db8bf98387b2.exe
    "C:\Users\Admin\AppData\Local\Temp\59951d862fa654988445862912f3bc677f7acaac76b83611f1d2db8bf98387b2.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:648
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4984
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4180
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2180
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2016
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:408
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5004
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3188
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2240
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1572
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4060
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1444
          • 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:1256
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1252

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbD4D6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c6bec278b1c32ba6e9c1d7780c7d5d40

            SHA1

            3dc336e2efd47777acf9b913c282a387b4017eb7

            SHA256

            037ffc92546e25775d505a3efcb885551ddd411edc134985ec2ef69b154064bb

            SHA512

            ccce369d341b7cac86bd949ea74f37976eb974d7707feee336fd96ce1d7184f617ef8833146ef935ab34d220bd604bfa168f212cbc875a161a163aec7e790180

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c6bec278b1c32ba6e9c1d7780c7d5d40

            SHA1

            3dc336e2efd47777acf9b913c282a387b4017eb7

            SHA256

            037ffc92546e25775d505a3efcb885551ddd411edc134985ec2ef69b154064bb

            SHA512

            ccce369d341b7cac86bd949ea74f37976eb974d7707feee336fd96ce1d7184f617ef8833146ef935ab34d220bd604bfa168f212cbc875a161a163aec7e790180

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c6bec278b1c32ba6e9c1d7780c7d5d40

            SHA1

            3dc336e2efd47777acf9b913c282a387b4017eb7

            SHA256

            037ffc92546e25775d505a3efcb885551ddd411edc134985ec2ef69b154064bb

            SHA512

            ccce369d341b7cac86bd949ea74f37976eb974d7707feee336fd96ce1d7184f617ef8833146ef935ab34d220bd604bfa168f212cbc875a161a163aec7e790180

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c6bec278b1c32ba6e9c1d7780c7d5d40

            SHA1

            3dc336e2efd47777acf9b913c282a387b4017eb7

            SHA256

            037ffc92546e25775d505a3efcb885551ddd411edc134985ec2ef69b154064bb

            SHA512

            ccce369d341b7cac86bd949ea74f37976eb974d7707feee336fd96ce1d7184f617ef8833146ef935ab34d220bd604bfa168f212cbc875a161a163aec7e790180

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9d1d6b315a431c7475bdf7f26647bae7

            SHA1

            fcdddc6d25c25d0574e0032b3e7a18ceaa306693

            SHA256

            584a652617db5fbe7ef58548d2121406ef6900e85fd1eb03478174c58673fcd6

            SHA512

            41e5044691863988420e7ae12f568ec098d59bd96e65cb297d417e9b18c03c2697fab3146a5b88ab290e95b608963532cb7d95998b4f4d9e865feae041461bf2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9d1d6b315a431c7475bdf7f26647bae7

            SHA1

            fcdddc6d25c25d0574e0032b3e7a18ceaa306693

            SHA256

            584a652617db5fbe7ef58548d2121406ef6900e85fd1eb03478174c58673fcd6

            SHA512

            41e5044691863988420e7ae12f568ec098d59bd96e65cb297d417e9b18c03c2697fab3146a5b88ab290e95b608963532cb7d95998b4f4d9e865feae041461bf2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9d1d6b315a431c7475bdf7f26647bae7

            SHA1

            fcdddc6d25c25d0574e0032b3e7a18ceaa306693

            SHA256

            584a652617db5fbe7ef58548d2121406ef6900e85fd1eb03478174c58673fcd6

            SHA512

            41e5044691863988420e7ae12f568ec098d59bd96e65cb297d417e9b18c03c2697fab3146a5b88ab290e95b608963532cb7d95998b4f4d9e865feae041461bf2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d567b00063e80a048bf9ffcca7d2e52f

            SHA1

            f8ea3ea24958fd4778d1a54303999661f9f514fe

            SHA256

            8789423b28fde43bf89237ab7f1f69344a5eea2a83f6d02031d305d42c3de1c6

            SHA512

            5aea7f479d4aa991240083ca1db5bd76b02cb9e411734d01817c306f37483c31f6917e669f489e7cf2054e80e556ceab8728ee60506642843a5543c64a90f8e5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d567b00063e80a048bf9ffcca7d2e52f

            SHA1

            f8ea3ea24958fd4778d1a54303999661f9f514fe

            SHA256

            8789423b28fde43bf89237ab7f1f69344a5eea2a83f6d02031d305d42c3de1c6

            SHA512

            5aea7f479d4aa991240083ca1db5bd76b02cb9e411734d01817c306f37483c31f6917e669f489e7cf2054e80e556ceab8728ee60506642843a5543c64a90f8e5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            771e10273893c386a67ca304d345b354

            SHA1

            9992f2b17c5a7e7e1a5d1604752798866da2b713

            SHA256

            03c90707e4e262f01aec79f91bb4c0dc796d49ca67cb508fd6a9926bd0596ce0

            SHA512

            b852cb71d9c11f6e51933bfd62f330bc050db9e0055c14e9bfc35ae79ef1e09839f1777d6294b51ae6921be1fb538c792087a5fe91fa739315b6ff7b290f131a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            771e10273893c386a67ca304d345b354

            SHA1

            9992f2b17c5a7e7e1a5d1604752798866da2b713

            SHA256

            03c90707e4e262f01aec79f91bb4c0dc796d49ca67cb508fd6a9926bd0596ce0

            SHA512

            b852cb71d9c11f6e51933bfd62f330bc050db9e0055c14e9bfc35ae79ef1e09839f1777d6294b51ae6921be1fb538c792087a5fe91fa739315b6ff7b290f131a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            771e10273893c386a67ca304d345b354

            SHA1

            9992f2b17c5a7e7e1a5d1604752798866da2b713

            SHA256

            03c90707e4e262f01aec79f91bb4c0dc796d49ca67cb508fd6a9926bd0596ce0

            SHA512

            b852cb71d9c11f6e51933bfd62f330bc050db9e0055c14e9bfc35ae79ef1e09839f1777d6294b51ae6921be1fb538c792087a5fe91fa739315b6ff7b290f131a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            602754ac605b339fa01ac3324ca3f0b7

            SHA1

            91535bd87f416c0513c8501bc7408d48f28f701d

            SHA256

            737ba7965f1ec16d37178fe73b1dae2a919ae4cca07089450b8fb0ce574c50d7

            SHA512

            d95b6ed2d3ece69f89f6c2bde6791cbdad0a334144a31ef8145b47cc6b1bcf507036f9c653405f23e504a9c209590caaba683a8ccd55750f7ecffd1a1e9ae3db

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            602754ac605b339fa01ac3324ca3f0b7

            SHA1

            91535bd87f416c0513c8501bc7408d48f28f701d

            SHA256

            737ba7965f1ec16d37178fe73b1dae2a919ae4cca07089450b8fb0ce574c50d7

            SHA512

            d95b6ed2d3ece69f89f6c2bde6791cbdad0a334144a31ef8145b47cc6b1bcf507036f9c653405f23e504a9c209590caaba683a8ccd55750f7ecffd1a1e9ae3db

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            602754ac605b339fa01ac3324ca3f0b7

            SHA1

            91535bd87f416c0513c8501bc7408d48f28f701d

            SHA256

            737ba7965f1ec16d37178fe73b1dae2a919ae4cca07089450b8fb0ce574c50d7

            SHA512

            d95b6ed2d3ece69f89f6c2bde6791cbdad0a334144a31ef8145b47cc6b1bcf507036f9c653405f23e504a9c209590caaba683a8ccd55750f7ecffd1a1e9ae3db

          • memory/408-143-0x0000000000000000-mapping.dmp

          • memory/648-142-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/648-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/648-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1444-167-0x0000000000000000-mapping.dmp

          • memory/1572-160-0x0000000000000000-mapping.dmp

          • memory/2016-141-0x0000000000000000-mapping.dmp

          • memory/2180-140-0x0000000000000000-mapping.dmp

          • memory/2240-159-0x0000000000000000-mapping.dmp

          • memory/3188-154-0x0000000000000000-mapping.dmp

          • memory/4060-166-0x0000000000000000-mapping.dmp

          • memory/4180-137-0x0000000000000000-mapping.dmp

          • memory/4984-136-0x0000000000000000-mapping.dmp

          • memory/5004-148-0x0000000000000000-mapping.dmp