Analysis

  • max time kernel
    16s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    7e9a9ce0e5be18b427fab22c3a8a266e4669d54b2ff0ac557f78e61f7dd8722f.exe

  • Size

    603KB

  • MD5

    2e4e6c540fbacc6a4e3137f70cd6ccb9

  • SHA1

    9b77fe3b716b038f83e1eafd92df96c334f424ea

  • SHA256

    7e9a9ce0e5be18b427fab22c3a8a266e4669d54b2ff0ac557f78e61f7dd8722f

  • SHA512

    d9f8595aa2697d44519e8f458749648007d68f7631182f41714b0a483a1f879c83f5932fdf2a16a03ca9c1d3219e3e7493726b75c619c4eaecc639e64e5bcb8b

  • SSDEEP

    12288:lIny5DYTNTi5NyHmX8HFi4hjB1GbOcnTnslfv0xxkI:RUTNTAycj4hSHTslH0xq

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\7e9a9ce0e5be18b427fab22c3a8a266e4669d54b2ff0ac557f78e61f7dd8722f.exe
    "C:\Users\Admin\AppData\Local\Temp\7e9a9ce0e5be18b427fab22c3a8a266e4669d54b2ff0ac557f78e61f7dd8722f.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:1708
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1168
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:872
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1864
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1272
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:584
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1668
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1648
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1160
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1072
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1004
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:868
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1936
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1728

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            74efe993fb81171cfa5a2f6b81869604

            SHA1

            7b62c40b0b2aceeef9d80f67c30de3dbab143e85

            SHA256

            e00386b10d7dce76884f74be8bf5988e2f0ce0c0199afd4123233e8f5bf66093

            SHA512

            bfe8610928760b86d445687cbcd54d3ce8f4d22f918674fe2ad49e57290444601794bd0d509d8287bd78bbd5c5e426015bc497510a76c2fa52ca21fcd577911f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            34c48c0791e11c54c7976c152f5e98de

            SHA1

            0c513812bbcbc05f6fda1a85b11ebbbaf53a346b

            SHA256

            eb807764b3103c2f7ee63dcab4fc1d832f37f6af683c0daf9c875f368002187f

            SHA512

            687ce8d7770f234e406edde5ff78dcc73b4026724f00a8ac0a9b5d03907fbacc7a41ea4106dd84b2a6600a03f187fa289c30b3cc945b3d42485da673611ba02c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4de38e069080ba447d7891813bb5cca1

            SHA1

            38ec2b4bd4e4c14f85dd676b09991fb208c3c771

            SHA256

            f3ad8bfff522bf4675b16d0f9930e266658dce580f9d5cd09210835bc78c2362

            SHA512

            f36370c5546cea829150718bf4a4a28a71e1e838a1caf3a00a39cd6dab9b84f33e4a582eedf8ebcbe08f85fbab959a75ec459125710477e1c666eb4cbdff11b6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8e0d8f865a16d4e731337422c245a634

            SHA1

            4468b4c295c8393fd0589ab3487b34c2c46cf3bd

            SHA256

            98e9d5ad64231b24b33040caaca2f6f2a4bb9e40b56bad9e56e8956b22334e5d

            SHA512

            c4b873e9eb33449fff194f4349ce3f0405e20d3ad7ed0063d98185383793a4c3ea765b9e42a067ae37ac5d45eae108fe0cbc5e66d3d38eb03259473360bcfb11

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8e0d8f865a16d4e731337422c245a634

            SHA1

            4468b4c295c8393fd0589ab3487b34c2c46cf3bd

            SHA256

            98e9d5ad64231b24b33040caaca2f6f2a4bb9e40b56bad9e56e8956b22334e5d

            SHA512

            c4b873e9eb33449fff194f4349ce3f0405e20d3ad7ed0063d98185383793a4c3ea765b9e42a067ae37ac5d45eae108fe0cbc5e66d3d38eb03259473360bcfb11

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            886b9aedf633ab9f93b5197ff90dd85a

            SHA1

            adab538cf32443242a2bbd9b1df2e8692d15b17f

            SHA256

            6df5aa8958154fa993ee41d5c61956c60ca399a39104b37f31d0fc6787f2b56e

            SHA512

            8befcc87f9b9fa5e007e3c07d5d53cd61e2f6322c873d03770446c2cddf49e26edc76c5e2f1cba13c37c1a3d0959d0d061399c9a41635157070126feb7414c6c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            886b9aedf633ab9f93b5197ff90dd85a

            SHA1

            adab538cf32443242a2bbd9b1df2e8692d15b17f

            SHA256

            6df5aa8958154fa993ee41d5c61956c60ca399a39104b37f31d0fc6787f2b56e

            SHA512

            8befcc87f9b9fa5e007e3c07d5d53cd61e2f6322c873d03770446c2cddf49e26edc76c5e2f1cba13c37c1a3d0959d0d061399c9a41635157070126feb7414c6c

          • \Users\Admin\AppData\Local\Temp\nsd3D03.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd3D03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd3D03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd3D03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd3D03.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            74efe993fb81171cfa5a2f6b81869604

            SHA1

            7b62c40b0b2aceeef9d80f67c30de3dbab143e85

            SHA256

            e00386b10d7dce76884f74be8bf5988e2f0ce0c0199afd4123233e8f5bf66093

            SHA512

            bfe8610928760b86d445687cbcd54d3ce8f4d22f918674fe2ad49e57290444601794bd0d509d8287bd78bbd5c5e426015bc497510a76c2fa52ca21fcd577911f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            74efe993fb81171cfa5a2f6b81869604

            SHA1

            7b62c40b0b2aceeef9d80f67c30de3dbab143e85

            SHA256

            e00386b10d7dce76884f74be8bf5988e2f0ce0c0199afd4123233e8f5bf66093

            SHA512

            bfe8610928760b86d445687cbcd54d3ce8f4d22f918674fe2ad49e57290444601794bd0d509d8287bd78bbd5c5e426015bc497510a76c2fa52ca21fcd577911f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            74efe993fb81171cfa5a2f6b81869604

            SHA1

            7b62c40b0b2aceeef9d80f67c30de3dbab143e85

            SHA256

            e00386b10d7dce76884f74be8bf5988e2f0ce0c0199afd4123233e8f5bf66093

            SHA512

            bfe8610928760b86d445687cbcd54d3ce8f4d22f918674fe2ad49e57290444601794bd0d509d8287bd78bbd5c5e426015bc497510a76c2fa52ca21fcd577911f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            34c48c0791e11c54c7976c152f5e98de

            SHA1

            0c513812bbcbc05f6fda1a85b11ebbbaf53a346b

            SHA256

            eb807764b3103c2f7ee63dcab4fc1d832f37f6af683c0daf9c875f368002187f

            SHA512

            687ce8d7770f234e406edde5ff78dcc73b4026724f00a8ac0a9b5d03907fbacc7a41ea4106dd84b2a6600a03f187fa289c30b3cc945b3d42485da673611ba02c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            34c48c0791e11c54c7976c152f5e98de

            SHA1

            0c513812bbcbc05f6fda1a85b11ebbbaf53a346b

            SHA256

            eb807764b3103c2f7ee63dcab4fc1d832f37f6af683c0daf9c875f368002187f

            SHA512

            687ce8d7770f234e406edde5ff78dcc73b4026724f00a8ac0a9b5d03907fbacc7a41ea4106dd84b2a6600a03f187fa289c30b3cc945b3d42485da673611ba02c

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4de38e069080ba447d7891813bb5cca1

            SHA1

            38ec2b4bd4e4c14f85dd676b09991fb208c3c771

            SHA256

            f3ad8bfff522bf4675b16d0f9930e266658dce580f9d5cd09210835bc78c2362

            SHA512

            f36370c5546cea829150718bf4a4a28a71e1e838a1caf3a00a39cd6dab9b84f33e4a582eedf8ebcbe08f85fbab959a75ec459125710477e1c666eb4cbdff11b6

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8e0d8f865a16d4e731337422c245a634

            SHA1

            4468b4c295c8393fd0589ab3487b34c2c46cf3bd

            SHA256

            98e9d5ad64231b24b33040caaca2f6f2a4bb9e40b56bad9e56e8956b22334e5d

            SHA512

            c4b873e9eb33449fff194f4349ce3f0405e20d3ad7ed0063d98185383793a4c3ea765b9e42a067ae37ac5d45eae108fe0cbc5e66d3d38eb03259473360bcfb11

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            886b9aedf633ab9f93b5197ff90dd85a

            SHA1

            adab538cf32443242a2bbd9b1df2e8692d15b17f

            SHA256

            6df5aa8958154fa993ee41d5c61956c60ca399a39104b37f31d0fc6787f2b56e

            SHA512

            8befcc87f9b9fa5e007e3c07d5d53cd61e2f6322c873d03770446c2cddf49e26edc76c5e2f1cba13c37c1a3d0959d0d061399c9a41635157070126feb7414c6c

          • memory/584-64-0x0000000000000000-mapping.dmp

          • memory/868-87-0x0000000000000000-mapping.dmp

          • memory/872-59-0x0000000000000000-mapping.dmp

          • memory/1004-86-0x0000000000000000-mapping.dmp

          • memory/1072-81-0x0000000000000000-mapping.dmp

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

          • memory/1168-58-0x0000000000000000-mapping.dmp

          • memory/1272-62-0x0000000000000000-mapping.dmp

          • memory/1648-76-0x0000000000000000-mapping.dmp

          • memory/1668-70-0x0000000000000000-mapping.dmp

          • memory/1708-54-0x0000000075651000-0x0000000075653000-memory.dmp

            Filesize

            8KB

          • memory/1708-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1708-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1864-61-0x0000000000000000-mapping.dmp