Analysis

  • max time kernel
    93s
  • max time network
    156s
  • 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 10:10

General

  • Target

    d879a7917d9252f061b2bfb21fe24cf73076b07d14ec313fd2a27c8e8477fbbb.exe

  • Size

    601KB

  • MD5

    394b67148c8dd1f95ea93e53f00d0dc7

  • SHA1

    19999c5eb8d24bb4d6c95b6177d4d75e69dbe2d2

  • SHA256

    d879a7917d9252f061b2bfb21fe24cf73076b07d14ec313fd2a27c8e8477fbbb

  • SHA512

    872f886f4a7061782f55cbd62d4b957662924900cfc307eae10a96af51d0de5c803536d5f2463dc82f5cb36c5c7aa24d4b6cc8737bb170e888c16757b12d2909

  • SSDEEP

    12288:BIny5DYTDdXV9bcPUSwZuhhiHjXPIiKgglnTQHT13:9UTDd7bcnejlnZ

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\d879a7917d9252f061b2bfb21fe24cf73076b07d14ec313fd2a27c8e8477fbbb.exe
    "C:\Users\Admin\AppData\Local\Temp\d879a7917d9252f061b2bfb21fe24cf73076b07d14ec313fd2a27c8e8477fbbb.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:4740
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1236
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5044
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4624
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3164
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:544
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2608
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:220
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4560
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3432
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4800
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4780
          • 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:3084
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2960

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsiF62E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            51969153b81d5bb4f1aae9ae8c221762

            SHA1

            660fb334b5607d0f2beb6ed805e890fb2b4b4f7f

            SHA256

            c7c26a79c80b17fc82737dc4229f7a346055400fdc1c5e6cfa921f61d45ae0ea

            SHA512

            4ac83c0783fb18aa378d9ceb50458319bb7f28f2a95b97f9e0b956021349f3112a1072bb72bdd18170da4a182225c71b059bb26a974fd4a90e13efac91c501c3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            51969153b81d5bb4f1aae9ae8c221762

            SHA1

            660fb334b5607d0f2beb6ed805e890fb2b4b4f7f

            SHA256

            c7c26a79c80b17fc82737dc4229f7a346055400fdc1c5e6cfa921f61d45ae0ea

            SHA512

            4ac83c0783fb18aa378d9ceb50458319bb7f28f2a95b97f9e0b956021349f3112a1072bb72bdd18170da4a182225c71b059bb26a974fd4a90e13efac91c501c3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            51969153b81d5bb4f1aae9ae8c221762

            SHA1

            660fb334b5607d0f2beb6ed805e890fb2b4b4f7f

            SHA256

            c7c26a79c80b17fc82737dc4229f7a346055400fdc1c5e6cfa921f61d45ae0ea

            SHA512

            4ac83c0783fb18aa378d9ceb50458319bb7f28f2a95b97f9e0b956021349f3112a1072bb72bdd18170da4a182225c71b059bb26a974fd4a90e13efac91c501c3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            51969153b81d5bb4f1aae9ae8c221762

            SHA1

            660fb334b5607d0f2beb6ed805e890fb2b4b4f7f

            SHA256

            c7c26a79c80b17fc82737dc4229f7a346055400fdc1c5e6cfa921f61d45ae0ea

            SHA512

            4ac83c0783fb18aa378d9ceb50458319bb7f28f2a95b97f9e0b956021349f3112a1072bb72bdd18170da4a182225c71b059bb26a974fd4a90e13efac91c501c3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f93a472fa91ef5bba185b05a687b6553

            SHA1

            ded0a5aea52294365a8b4fb17c4d1a55a2b00c05

            SHA256

            e965989e0dcca5853d9c13bb490be1c857a110754974a52acb79797a8dd4c0fc

            SHA512

            dd3968046449e40ce948409f9ed7c7d28e124aacdb8919cbf7be520d77bd2fd5e117d28759fddb0b1f5a55672b1d143144955ffcea0ccf46b5c07d25a9e43d3c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f93a472fa91ef5bba185b05a687b6553

            SHA1

            ded0a5aea52294365a8b4fb17c4d1a55a2b00c05

            SHA256

            e965989e0dcca5853d9c13bb490be1c857a110754974a52acb79797a8dd4c0fc

            SHA512

            dd3968046449e40ce948409f9ed7c7d28e124aacdb8919cbf7be520d77bd2fd5e117d28759fddb0b1f5a55672b1d143144955ffcea0ccf46b5c07d25a9e43d3c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f93a472fa91ef5bba185b05a687b6553

            SHA1

            ded0a5aea52294365a8b4fb17c4d1a55a2b00c05

            SHA256

            e965989e0dcca5853d9c13bb490be1c857a110754974a52acb79797a8dd4c0fc

            SHA512

            dd3968046449e40ce948409f9ed7c7d28e124aacdb8919cbf7be520d77bd2fd5e117d28759fddb0b1f5a55672b1d143144955ffcea0ccf46b5c07d25a9e43d3c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5d7cd4865425c053f47c64dd418e1013

            SHA1

            50e86856ce78e741f226c2b113c253566f11cc91

            SHA256

            c3919614cd772aa4b62645e446984710b3cc43906d301f37666b82f713d3cb8d

            SHA512

            49bbefa3a374f8dd9e4a487d0f2d64cd419de8cae173e6b8de999683f5c28fe52ca479771126052ed16141c30c50d3f36778f1be6dc1fc45d0d579d75059975a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5d7cd4865425c053f47c64dd418e1013

            SHA1

            50e86856ce78e741f226c2b113c253566f11cc91

            SHA256

            c3919614cd772aa4b62645e446984710b3cc43906d301f37666b82f713d3cb8d

            SHA512

            49bbefa3a374f8dd9e4a487d0f2d64cd419de8cae173e6b8de999683f5c28fe52ca479771126052ed16141c30c50d3f36778f1be6dc1fc45d0d579d75059975a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4de71b4a1fd2023432144bc2799b98b1

            SHA1

            62257a98a2da6786dd9f195a060294f03f615941

            SHA256

            48b84a33c50969042a71928e0fe71bd6027859cc609c435a1fb3e19259783516

            SHA512

            cb861ea7914cd53a0dcc5de905e82a272ed4288d96ae673a9321844f4ea4d4415ab8ed2123878738614aa7add561cdb3951d2f5989618398995d200908cdd395

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4de71b4a1fd2023432144bc2799b98b1

            SHA1

            62257a98a2da6786dd9f195a060294f03f615941

            SHA256

            48b84a33c50969042a71928e0fe71bd6027859cc609c435a1fb3e19259783516

            SHA512

            cb861ea7914cd53a0dcc5de905e82a272ed4288d96ae673a9321844f4ea4d4415ab8ed2123878738614aa7add561cdb3951d2f5989618398995d200908cdd395

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4de71b4a1fd2023432144bc2799b98b1

            SHA1

            62257a98a2da6786dd9f195a060294f03f615941

            SHA256

            48b84a33c50969042a71928e0fe71bd6027859cc609c435a1fb3e19259783516

            SHA512

            cb861ea7914cd53a0dcc5de905e82a272ed4288d96ae673a9321844f4ea4d4415ab8ed2123878738614aa7add561cdb3951d2f5989618398995d200908cdd395

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a261b1cb5953821ab2696cb10b1ae6e2

            SHA1

            fe6e1c3d1ab41cfa67552897bb833eb9105f8800

            SHA256

            e6f2820906179b095402dc49990ef0f07054b6d56473ca87c48c2357df05f559

            SHA512

            11c94603cc54c26720aab2b3ecf614f56a34ddd58c13ed010cb2118681e27d0d44470df6dec6416cd038babee7aa86778188cffb6b36e26c109c47f611b541eb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a261b1cb5953821ab2696cb10b1ae6e2

            SHA1

            fe6e1c3d1ab41cfa67552897bb833eb9105f8800

            SHA256

            e6f2820906179b095402dc49990ef0f07054b6d56473ca87c48c2357df05f559

            SHA512

            11c94603cc54c26720aab2b3ecf614f56a34ddd58c13ed010cb2118681e27d0d44470df6dec6416cd038babee7aa86778188cffb6b36e26c109c47f611b541eb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a261b1cb5953821ab2696cb10b1ae6e2

            SHA1

            fe6e1c3d1ab41cfa67552897bb833eb9105f8800

            SHA256

            e6f2820906179b095402dc49990ef0f07054b6d56473ca87c48c2357df05f559

            SHA512

            11c94603cc54c26720aab2b3ecf614f56a34ddd58c13ed010cb2118681e27d0d44470df6dec6416cd038babee7aa86778188cffb6b36e26c109c47f611b541eb

          • memory/220-153-0x0000000000000000-mapping.dmp

          • memory/544-142-0x0000000000000000-mapping.dmp

          • memory/1236-135-0x0000000000000000-mapping.dmp

          • memory/2608-147-0x0000000000000000-mapping.dmp

          • memory/3164-141-0x0000000000000000-mapping.dmp

          • memory/3432-159-0x0000000000000000-mapping.dmp

          • memory/4560-158-0x0000000000000000-mapping.dmp

          • memory/4624-140-0x0000000000000000-mapping.dmp

          • memory/4740-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4740-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4780-166-0x0000000000000000-mapping.dmp

          • memory/4800-165-0x0000000000000000-mapping.dmp

          • memory/5044-137-0x0000000000000000-mapping.dmp