Analysis

  • max time kernel
    66s
  • max time network
    137s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:55

General

  • Target

    791b183fcce5fac4422e7fd242f167295ed513310065418e986834280179268d.exe

  • Size

    445KB

  • MD5

    070efc53567f5f26651aff1a088e7d7e

  • SHA1

    71afa16680a0906d6c3e56fe64dba5948e18d857

  • SHA256

    791b183fcce5fac4422e7fd242f167295ed513310065418e986834280179268d

  • SHA512

    192a08bf5e893440a1fc32fc8adef17305533168bbb4bf77b8f6afdbc8d0f383488860a0c416587b78a662bc9471d34b17b3d262483002d159d4029f84b64faa

  • SSDEEP

    12288:yEkw8w9Tc479fRPixnTbuur+g/cdzS3oCKkmYjQhu:yFw8QBxtunTb99cpSzKk/sE

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\791b183fcce5fac4422e7fd242f167295ed513310065418e986834280179268d.exe
    "C:\Users\Admin\AppData\Local\Temp\791b183fcce5fac4422e7fd242f167295ed513310065418e986834280179268d.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:4760
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3732
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3576
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2260
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3736
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4336
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4680
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:484
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4448
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4940
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4848
          • 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:3440
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1372

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrFE3D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b7d87a5e5431ee5b03842feb95f3da1d

            SHA1

            e91b4b1ad91ffc59ce306758d62bbce9032a37bb

            SHA256

            402935b13b28c659d3b8740c589d2570f1bef238821897895d043799b4b0b98b

            SHA512

            59c005b3f5b11b211765bf7ba49882f3d50b946c4040ce1bf0bff6df071345333de1d982717bb2f92a0f930f05226de9221c99e665f7f99a02d33da9cf6d40d0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b7d87a5e5431ee5b03842feb95f3da1d

            SHA1

            e91b4b1ad91ffc59ce306758d62bbce9032a37bb

            SHA256

            402935b13b28c659d3b8740c589d2570f1bef238821897895d043799b4b0b98b

            SHA512

            59c005b3f5b11b211765bf7ba49882f3d50b946c4040ce1bf0bff6df071345333de1d982717bb2f92a0f930f05226de9221c99e665f7f99a02d33da9cf6d40d0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b7d87a5e5431ee5b03842feb95f3da1d

            SHA1

            e91b4b1ad91ffc59ce306758d62bbce9032a37bb

            SHA256

            402935b13b28c659d3b8740c589d2570f1bef238821897895d043799b4b0b98b

            SHA512

            59c005b3f5b11b211765bf7ba49882f3d50b946c4040ce1bf0bff6df071345333de1d982717bb2f92a0f930f05226de9221c99e665f7f99a02d33da9cf6d40d0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b7d87a5e5431ee5b03842feb95f3da1d

            SHA1

            e91b4b1ad91ffc59ce306758d62bbce9032a37bb

            SHA256

            402935b13b28c659d3b8740c589d2570f1bef238821897895d043799b4b0b98b

            SHA512

            59c005b3f5b11b211765bf7ba49882f3d50b946c4040ce1bf0bff6df071345333de1d982717bb2f92a0f930f05226de9221c99e665f7f99a02d33da9cf6d40d0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9b87568c8976c020ff54584aa1047bcd

            SHA1

            d498131ddf74a116dee6c0b41e8ac5a105cc89d2

            SHA256

            8c8abcc11a5a5c444eed9620a9706b3efc5ba6bd578d609c90e9c39562d8dfd2

            SHA512

            e0a74a1f01ec20f72f3b8d8bf809a9be4800576d0ffdf57e799538887b1f3cf6d82ebe351b1cf13c4f1fa498c08d79114746a7665f90627dd531e721d5db6388

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9b87568c8976c020ff54584aa1047bcd

            SHA1

            d498131ddf74a116dee6c0b41e8ac5a105cc89d2

            SHA256

            8c8abcc11a5a5c444eed9620a9706b3efc5ba6bd578d609c90e9c39562d8dfd2

            SHA512

            e0a74a1f01ec20f72f3b8d8bf809a9be4800576d0ffdf57e799538887b1f3cf6d82ebe351b1cf13c4f1fa498c08d79114746a7665f90627dd531e721d5db6388

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9b87568c8976c020ff54584aa1047bcd

            SHA1

            d498131ddf74a116dee6c0b41e8ac5a105cc89d2

            SHA256

            8c8abcc11a5a5c444eed9620a9706b3efc5ba6bd578d609c90e9c39562d8dfd2

            SHA512

            e0a74a1f01ec20f72f3b8d8bf809a9be4800576d0ffdf57e799538887b1f3cf6d82ebe351b1cf13c4f1fa498c08d79114746a7665f90627dd531e721d5db6388

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a2e7231688945c076b6ee46f42222e54

            SHA1

            cc0d0afad152f65ca9e64df79395d9445a7e62d5

            SHA256

            dd47b3aaf1b3db8f73ac173c83c1d1267d1d5b706e166b5b590292e94c8652d4

            SHA512

            446e830ebe745fff8b86a194656a36afb1c23d67f66749cc12035b880beff7123cfb918910422b375e7b78b6260d40f3221386c64f756a78fa986da8502f3065

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a2e7231688945c076b6ee46f42222e54

            SHA1

            cc0d0afad152f65ca9e64df79395d9445a7e62d5

            SHA256

            dd47b3aaf1b3db8f73ac173c83c1d1267d1d5b706e166b5b590292e94c8652d4

            SHA512

            446e830ebe745fff8b86a194656a36afb1c23d67f66749cc12035b880beff7123cfb918910422b375e7b78b6260d40f3221386c64f756a78fa986da8502f3065

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            76e21833e3235c384788b4b31d86c232

            SHA1

            21ad5346c67b7cae731f22e50f0a61a7d413c937

            SHA256

            9560f8b6f2792383fe6d82382909446ed0cfaf9be2ea8ddcd5f13e9b70eb2ae1

            SHA512

            5336cd9f75aa7b9d342dcdfbb1fbf338f30c88f31ebb0a50c2e52b328f76a1ebd8c48187e816655339bade6e9e61bea9f92a2fd88976255aa8f1a946ec1b93df

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            76e21833e3235c384788b4b31d86c232

            SHA1

            21ad5346c67b7cae731f22e50f0a61a7d413c937

            SHA256

            9560f8b6f2792383fe6d82382909446ed0cfaf9be2ea8ddcd5f13e9b70eb2ae1

            SHA512

            5336cd9f75aa7b9d342dcdfbb1fbf338f30c88f31ebb0a50c2e52b328f76a1ebd8c48187e816655339bade6e9e61bea9f92a2fd88976255aa8f1a946ec1b93df

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            76e21833e3235c384788b4b31d86c232

            SHA1

            21ad5346c67b7cae731f22e50f0a61a7d413c937

            SHA256

            9560f8b6f2792383fe6d82382909446ed0cfaf9be2ea8ddcd5f13e9b70eb2ae1

            SHA512

            5336cd9f75aa7b9d342dcdfbb1fbf338f30c88f31ebb0a50c2e52b328f76a1ebd8c48187e816655339bade6e9e61bea9f92a2fd88976255aa8f1a946ec1b93df

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f9c1f5ee30815f84fd96e583f624f069

            SHA1

            e050009aedd4ff6226b7631f1cb98fc461316c33

            SHA256

            01b348a80b816eb29cc2c106ed20cade8fc05bdb2181a9ac70dc075d9b98b5d1

            SHA512

            467999b6d116f9c9852d4ae0e2f1e44ac4fd62addb0728832d4c780b6bf51260aeea7173a9efa20654ddf46347499b6399701d2691f377090edf54fe0e8b3d5e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f9c1f5ee30815f84fd96e583f624f069

            SHA1

            e050009aedd4ff6226b7631f1cb98fc461316c33

            SHA256

            01b348a80b816eb29cc2c106ed20cade8fc05bdb2181a9ac70dc075d9b98b5d1

            SHA512

            467999b6d116f9c9852d4ae0e2f1e44ac4fd62addb0728832d4c780b6bf51260aeea7173a9efa20654ddf46347499b6399701d2691f377090edf54fe0e8b3d5e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f9c1f5ee30815f84fd96e583f624f069

            SHA1

            e050009aedd4ff6226b7631f1cb98fc461316c33

            SHA256

            01b348a80b816eb29cc2c106ed20cade8fc05bdb2181a9ac70dc075d9b98b5d1

            SHA512

            467999b6d116f9c9852d4ae0e2f1e44ac4fd62addb0728832d4c780b6bf51260aeea7173a9efa20654ddf46347499b6399701d2691f377090edf54fe0e8b3d5e

          • memory/484-157-0x0000000000000000-mapping.dmp

          • memory/2260-139-0x0000000000000000-mapping.dmp

          • memory/2840-146-0x0000000000000000-mapping.dmp

          • memory/3576-136-0x0000000000000000-mapping.dmp

          • memory/3732-135-0x0000000000000000-mapping.dmp

          • memory/3736-140-0x0000000000000000-mapping.dmp

          • memory/4336-141-0x0000000000000000-mapping.dmp

          • memory/4448-158-0x0000000000000000-mapping.dmp

          • memory/4680-152-0x0000000000000000-mapping.dmp

          • memory/4848-165-0x0000000000000000-mapping.dmp

          • memory/4940-164-0x0000000000000000-mapping.dmp