Analysis

  • max time kernel
    147s
  • max time network
    154s
  • 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 10:22

General

  • Target

    7818cfca36cb6ff12cf925072a01e24be426d0570ff8e33eea64f5a77c35284f.exe

  • Size

    602KB

  • MD5

    504f17cf40aa87e4bc77a78911f57199

  • SHA1

    46f8144781fadb6af881196e30e43e15eb51c3ae

  • SHA256

    7818cfca36cb6ff12cf925072a01e24be426d0570ff8e33eea64f5a77c35284f

  • SHA512

    e5e318ae84fef1baf037ad19b7c25ce3f8cf4f5c46c78e7ecec81bec0c264d74e99f905dd1ea939d9c32d1490eda5bbc2f56fdd25523514e4a75519a4700a438

  • SSDEEP

    12288:KIny5DYTcIOYDOTcr2xXWFjpVrQZQ26eUiIrViAl5Vzniij4cX:MUTc9ncr2x6jTxJrVZJnv

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\7818cfca36cb6ff12cf925072a01e24be426d0570ff8e33eea64f5a77c35284f.exe
    "C:\Users\Admin\AppData\Local\Temp\7818cfca36cb6ff12cf925072a01e24be426d0570ff8e33eea64f5a77c35284f.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:5044
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2024
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4656
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4548
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:988
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:540
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:5088
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2152
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1076
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1856
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2168
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3800
          • 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:4024
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3392

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsv7D45.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4dad8a82bbe94ac5b193df39060b23b7

            SHA1

            eb5ea381623c664c43e5f26743b253111e36af27

            SHA256

            2b40dd805b42fcc78abdaec65431dc9b0b63f87712af5110eebb6de43d3f874d

            SHA512

            4c25d5a9fefaff7476de60b38a42e4f9e6ff95c5e42cbdb984f4da85acb52b45b13aa5d3ac0701e2e61f124121a180e53d56d93b61b365e247a7422dd7a71b57

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4dad8a82bbe94ac5b193df39060b23b7

            SHA1

            eb5ea381623c664c43e5f26743b253111e36af27

            SHA256

            2b40dd805b42fcc78abdaec65431dc9b0b63f87712af5110eebb6de43d3f874d

            SHA512

            4c25d5a9fefaff7476de60b38a42e4f9e6ff95c5e42cbdb984f4da85acb52b45b13aa5d3ac0701e2e61f124121a180e53d56d93b61b365e247a7422dd7a71b57

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4dad8a82bbe94ac5b193df39060b23b7

            SHA1

            eb5ea381623c664c43e5f26743b253111e36af27

            SHA256

            2b40dd805b42fcc78abdaec65431dc9b0b63f87712af5110eebb6de43d3f874d

            SHA512

            4c25d5a9fefaff7476de60b38a42e4f9e6ff95c5e42cbdb984f4da85acb52b45b13aa5d3ac0701e2e61f124121a180e53d56d93b61b365e247a7422dd7a71b57

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4dad8a82bbe94ac5b193df39060b23b7

            SHA1

            eb5ea381623c664c43e5f26743b253111e36af27

            SHA256

            2b40dd805b42fcc78abdaec65431dc9b0b63f87712af5110eebb6de43d3f874d

            SHA512

            4c25d5a9fefaff7476de60b38a42e4f9e6ff95c5e42cbdb984f4da85acb52b45b13aa5d3ac0701e2e61f124121a180e53d56d93b61b365e247a7422dd7a71b57

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            366a80abe97efed4746bf3a491876928

            SHA1

            17a8ec607d8021e66cc1cc49a61a4828e96dea06

            SHA256

            e0d28f6b167fccef80a699ab20dc384ee3f3b1553ceaa951d3a626eb1744bcf1

            SHA512

            610fe34b137f846b1a874717a6dcb8fd62333918662992379629c00beaba7da71cca936437421c65bdd454c0e509ac60888c801c34563f53769c613acee0ae5f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            366a80abe97efed4746bf3a491876928

            SHA1

            17a8ec607d8021e66cc1cc49a61a4828e96dea06

            SHA256

            e0d28f6b167fccef80a699ab20dc384ee3f3b1553ceaa951d3a626eb1744bcf1

            SHA512

            610fe34b137f846b1a874717a6dcb8fd62333918662992379629c00beaba7da71cca936437421c65bdd454c0e509ac60888c801c34563f53769c613acee0ae5f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            366a80abe97efed4746bf3a491876928

            SHA1

            17a8ec607d8021e66cc1cc49a61a4828e96dea06

            SHA256

            e0d28f6b167fccef80a699ab20dc384ee3f3b1553ceaa951d3a626eb1744bcf1

            SHA512

            610fe34b137f846b1a874717a6dcb8fd62333918662992379629c00beaba7da71cca936437421c65bdd454c0e509ac60888c801c34563f53769c613acee0ae5f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4516318288ee630046a3a2288e58318b

            SHA1

            f5255fae742f8ca50a064c12df1dc87a869708fa

            SHA256

            e410ee7c0adb2a76b8b2e371eecb90b5a9f583b256da17c658dad4be984bad06

            SHA512

            03ee720888371d90a5b62f655aad785e1279a060fe88b1732bc4ae6fc34ced2ba2fdabc0007876e79b2d8be2dfc0f3a87581bea61e6f44c00ecae2003821e234

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4516318288ee630046a3a2288e58318b

            SHA1

            f5255fae742f8ca50a064c12df1dc87a869708fa

            SHA256

            e410ee7c0adb2a76b8b2e371eecb90b5a9f583b256da17c658dad4be984bad06

            SHA512

            03ee720888371d90a5b62f655aad785e1279a060fe88b1732bc4ae6fc34ced2ba2fdabc0007876e79b2d8be2dfc0f3a87581bea61e6f44c00ecae2003821e234

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            17862ce88051b611cf3e4d77bc73592f

            SHA1

            7a500ffd961e454da4ae5dcf73111e749e874294

            SHA256

            73bc292a6ed9143e26db5c1047d8868fa75ac020e8264c0f73308cc95b3ad119

            SHA512

            e72e06f4ce7a0e44f11c95697a1cb3096b68580a7065d0fad1cde85a6a2742e45460d3060ff2616891282bac606530e9eff1b12bcc5e715822db98f580c24a6e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            17862ce88051b611cf3e4d77bc73592f

            SHA1

            7a500ffd961e454da4ae5dcf73111e749e874294

            SHA256

            73bc292a6ed9143e26db5c1047d8868fa75ac020e8264c0f73308cc95b3ad119

            SHA512

            e72e06f4ce7a0e44f11c95697a1cb3096b68580a7065d0fad1cde85a6a2742e45460d3060ff2616891282bac606530e9eff1b12bcc5e715822db98f580c24a6e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            17862ce88051b611cf3e4d77bc73592f

            SHA1

            7a500ffd961e454da4ae5dcf73111e749e874294

            SHA256

            73bc292a6ed9143e26db5c1047d8868fa75ac020e8264c0f73308cc95b3ad119

            SHA512

            e72e06f4ce7a0e44f11c95697a1cb3096b68580a7065d0fad1cde85a6a2742e45460d3060ff2616891282bac606530e9eff1b12bcc5e715822db98f580c24a6e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eac81c8faabaee3a8c7a590179a532e0

            SHA1

            0f524c1973c45d4189d1216a6a26311116b1163a

            SHA256

            802a76167d078350c16c327420efff6c00e7d2f21edbab9a5bb35f3ba00a3a30

            SHA512

            418cc15b714461fd2de83ff705a956f4ff2f570b04d30c4a2eef70e6e5b4240ce1a37fe47a78b7ac6d0d32fc9e9cbaae6b911855b887d6b6a1ae3886b2708c6b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eac81c8faabaee3a8c7a590179a532e0

            SHA1

            0f524c1973c45d4189d1216a6a26311116b1163a

            SHA256

            802a76167d078350c16c327420efff6c00e7d2f21edbab9a5bb35f3ba00a3a30

            SHA512

            418cc15b714461fd2de83ff705a956f4ff2f570b04d30c4a2eef70e6e5b4240ce1a37fe47a78b7ac6d0d32fc9e9cbaae6b911855b887d6b6a1ae3886b2708c6b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            eac81c8faabaee3a8c7a590179a532e0

            SHA1

            0f524c1973c45d4189d1216a6a26311116b1163a

            SHA256

            802a76167d078350c16c327420efff6c00e7d2f21edbab9a5bb35f3ba00a3a30

            SHA512

            418cc15b714461fd2de83ff705a956f4ff2f570b04d30c4a2eef70e6e5b4240ce1a37fe47a78b7ac6d0d32fc9e9cbaae6b911855b887d6b6a1ae3886b2708c6b

          • memory/540-142-0x0000000000000000-mapping.dmp

          • memory/988-141-0x0000000000000000-mapping.dmp

          • memory/1076-158-0x0000000000000000-mapping.dmp

          • memory/1856-159-0x0000000000000000-mapping.dmp

          • memory/2024-135-0x0000000000000000-mapping.dmp

          • memory/2152-153-0x0000000000000000-mapping.dmp

          • memory/2168-165-0x0000000000000000-mapping.dmp

          • memory/3800-166-0x0000000000000000-mapping.dmp

          • memory/4548-140-0x0000000000000000-mapping.dmp

          • memory/4656-136-0x0000000000000000-mapping.dmp

          • memory/5044-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5044-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5088-147-0x0000000000000000-mapping.dmp