Analysis

  • max time kernel
    42s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    72c2ff4e6f4a1661a915f8e30733f10dd525a59b7c4bcec5c5b5ac294a8bfc7d.exe

  • Size

    602KB

  • MD5

    298746b969e59cac73f137fac7bb20ec

  • SHA1

    594c86a8429a1275e551a0694e126a11a2fb3331

  • SHA256

    72c2ff4e6f4a1661a915f8e30733f10dd525a59b7c4bcec5c5b5ac294a8bfc7d

  • SHA512

    7c4e5ada0d551f6bf6d25c663e8394931a4a0ab1b811fd322cb34e9783b4a898591b9d3506b33e734f5b373dd9c429ce658540624c4b92a13a9a1a3df557a719

  • SSDEEP

    12288:tIny5DYTd5QrSN8P2PCD/nynOJLfT80XiBVD5:5UT3sSs2AaOJLfTnSBJ5

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\72c2ff4e6f4a1661a915f8e30733f10dd525a59b7c4bcec5c5b5ac294a8bfc7d.exe
    "C:\Users\Admin\AppData\Local\Temp\72c2ff4e6f4a1661a915f8e30733f10dd525a59b7c4bcec5c5b5ac294a8bfc7d.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:2016
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1296
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1756
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1528
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1304
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1684
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:452
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1776
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:808
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1764
            • 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:1984
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1908

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4270c03c9d8975b9d9e4752082da2c6e

            SHA1

            c4b94e70a2fd9b718744ccac0d6738e95f128c29

            SHA256

            a11f2351a4db9ae419cfb04ba9d673a62ae26e49c5ee001c20f28b243aa04ed3

            SHA512

            1cce3d35b63334d1737215b5eea546fea6b1a433800179631ea0cffb4834b3cad0d9d06d9a1d6da2440574440992f38b120d752ed4d0553e5624d4a1cc145a5d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            43a93f0b0b657efb99aaad7343734368

            SHA1

            e27d86f74ae168366e5b28c34ef0c92c0c026429

            SHA256

            71c4a7042991994427057978123202d6ba5b28e984c60b12dedf4b964847d129

            SHA512

            c094cbb4309668f69a70456f7c8f8dfd08b6eef8239ad5bc0f2308a0b47ed855f9a01b6d86e00b98d41edc8630b3b428f67c2943c1f4ef03438e68fe1d34b707

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            94666ec5595be8738b5f65a0f7e8539c

            SHA1

            ab21b42fe64ea97137c954b9d43c44998b7f365e

            SHA256

            d983b73068c76941d83ddb16e8137b3c942fc31165f3e8db0798824ff09acaee

            SHA512

            e578ff0d98967d36076fcb6606acbd33b80eb6fc42e7327e69bcf20c303d3a850fe1e9f2000ab27788c8ad6c86cadfb6787baf1dac14b890711211cb43bc6230

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e9ccda79b07e8381d7dda18fc2d5b26f

            SHA1

            37837d6c8205dd9fbae18cc60e80d3ea49f3a619

            SHA256

            b1f1a304f5efca8f3a693ecb87f49b603bd9bebd1f27663bda04cd1d27b45479

            SHA512

            2b7947d28b5e5d8ae947b40d526614b5026357c7076c53487f10c46d279590898ea72bf45c8c7c8f388729789839d7553951f77d43cabb236158b40982e37b27

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e9ccda79b07e8381d7dda18fc2d5b26f

            SHA1

            37837d6c8205dd9fbae18cc60e80d3ea49f3a619

            SHA256

            b1f1a304f5efca8f3a693ecb87f49b603bd9bebd1f27663bda04cd1d27b45479

            SHA512

            2b7947d28b5e5d8ae947b40d526614b5026357c7076c53487f10c46d279590898ea72bf45c8c7c8f388729789839d7553951f77d43cabb236158b40982e37b27

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4f98a8eb29777bb057ec9da54bed3274

            SHA1

            fdb33253731abc531b6fd6528e8014529fa7e307

            SHA256

            1eff0e194122feadba321754cb0b8bcd0e881a2caa0559c1b3f4aad6bd03cd89

            SHA512

            e1bc71d9ee7f1192727af0c35d11c4d0064d50b970554015020c3935916aa6108b632d7f899eb3ed2721d8a1e0fd21b620cd3951057434dd501f3eed127ed618

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4f98a8eb29777bb057ec9da54bed3274

            SHA1

            fdb33253731abc531b6fd6528e8014529fa7e307

            SHA256

            1eff0e194122feadba321754cb0b8bcd0e881a2caa0559c1b3f4aad6bd03cd89

            SHA512

            e1bc71d9ee7f1192727af0c35d11c4d0064d50b970554015020c3935916aa6108b632d7f899eb3ed2721d8a1e0fd21b620cd3951057434dd501f3eed127ed618

          • \Users\Admin\AppData\Local\Temp\nsyE8CC.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyE8CC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE8CC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE8CC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE8CC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4270c03c9d8975b9d9e4752082da2c6e

            SHA1

            c4b94e70a2fd9b718744ccac0d6738e95f128c29

            SHA256

            a11f2351a4db9ae419cfb04ba9d673a62ae26e49c5ee001c20f28b243aa04ed3

            SHA512

            1cce3d35b63334d1737215b5eea546fea6b1a433800179631ea0cffb4834b3cad0d9d06d9a1d6da2440574440992f38b120d752ed4d0553e5624d4a1cc145a5d

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4270c03c9d8975b9d9e4752082da2c6e

            SHA1

            c4b94e70a2fd9b718744ccac0d6738e95f128c29

            SHA256

            a11f2351a4db9ae419cfb04ba9d673a62ae26e49c5ee001c20f28b243aa04ed3

            SHA512

            1cce3d35b63334d1737215b5eea546fea6b1a433800179631ea0cffb4834b3cad0d9d06d9a1d6da2440574440992f38b120d752ed4d0553e5624d4a1cc145a5d

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4270c03c9d8975b9d9e4752082da2c6e

            SHA1

            c4b94e70a2fd9b718744ccac0d6738e95f128c29

            SHA256

            a11f2351a4db9ae419cfb04ba9d673a62ae26e49c5ee001c20f28b243aa04ed3

            SHA512

            1cce3d35b63334d1737215b5eea546fea6b1a433800179631ea0cffb4834b3cad0d9d06d9a1d6da2440574440992f38b120d752ed4d0553e5624d4a1cc145a5d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            43a93f0b0b657efb99aaad7343734368

            SHA1

            e27d86f74ae168366e5b28c34ef0c92c0c026429

            SHA256

            71c4a7042991994427057978123202d6ba5b28e984c60b12dedf4b964847d129

            SHA512

            c094cbb4309668f69a70456f7c8f8dfd08b6eef8239ad5bc0f2308a0b47ed855f9a01b6d86e00b98d41edc8630b3b428f67c2943c1f4ef03438e68fe1d34b707

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            43a93f0b0b657efb99aaad7343734368

            SHA1

            e27d86f74ae168366e5b28c34ef0c92c0c026429

            SHA256

            71c4a7042991994427057978123202d6ba5b28e984c60b12dedf4b964847d129

            SHA512

            c094cbb4309668f69a70456f7c8f8dfd08b6eef8239ad5bc0f2308a0b47ed855f9a01b6d86e00b98d41edc8630b3b428f67c2943c1f4ef03438e68fe1d34b707

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            94666ec5595be8738b5f65a0f7e8539c

            SHA1

            ab21b42fe64ea97137c954b9d43c44998b7f365e

            SHA256

            d983b73068c76941d83ddb16e8137b3c942fc31165f3e8db0798824ff09acaee

            SHA512

            e578ff0d98967d36076fcb6606acbd33b80eb6fc42e7327e69bcf20c303d3a850fe1e9f2000ab27788c8ad6c86cadfb6787baf1dac14b890711211cb43bc6230

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e9ccda79b07e8381d7dda18fc2d5b26f

            SHA1

            37837d6c8205dd9fbae18cc60e80d3ea49f3a619

            SHA256

            b1f1a304f5efca8f3a693ecb87f49b603bd9bebd1f27663bda04cd1d27b45479

            SHA512

            2b7947d28b5e5d8ae947b40d526614b5026357c7076c53487f10c46d279590898ea72bf45c8c7c8f388729789839d7553951f77d43cabb236158b40982e37b27

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4f98a8eb29777bb057ec9da54bed3274

            SHA1

            fdb33253731abc531b6fd6528e8014529fa7e307

            SHA256

            1eff0e194122feadba321754cb0b8bcd0e881a2caa0559c1b3f4aad6bd03cd89

            SHA512

            e1bc71d9ee7f1192727af0c35d11c4d0064d50b970554015020c3935916aa6108b632d7f899eb3ed2721d8a1e0fd21b620cd3951057434dd501f3eed127ed618

          • memory/452-76-0x0000000000000000-mapping.dmp

          • memory/808-81-0x0000000000000000-mapping.dmp

          • memory/1188-87-0x0000000000000000-mapping.dmp

          • memory/1296-57-0x0000000000000000-mapping.dmp

          • memory/1304-64-0x0000000000000000-mapping.dmp

          • memory/1528-62-0x0000000000000000-mapping.dmp

          • memory/1532-61-0x0000000000000000-mapping.dmp

          • memory/1684-70-0x0000000000000000-mapping.dmp

          • memory/1756-58-0x0000000000000000-mapping.dmp

          • memory/1764-86-0x0000000000000000-mapping.dmp

          • memory/1776-80-0x0000000000000000-mapping.dmp

          • memory/2016-54-0x00000000761F1000-0x00000000761F3000-memory.dmp

            Filesize

            8KB

          • memory/2016-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2016-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB