Analysis

  • max time kernel
    91s
  • max time network
    129s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    7b25c9089ddb1056cef213ce6debe8eccbc635cbabdae9a210ab7fe58f1740f1.exe

  • Size

    602KB

  • MD5

    d9f904ebe96ad5fd0345fb39b5dc3a38

  • SHA1

    e8206b276a4dcf918aaae0dd72a255cd87e1c730

  • SHA256

    7b25c9089ddb1056cef213ce6debe8eccbc635cbabdae9a210ab7fe58f1740f1

  • SHA512

    0717edb5a0c931bbd58944fa8f763ab1a285bbdf12cfa6eeba80918d42087777d2433d1e6bfb2a2b1209ce869246d7784f091e78fb2adfb5d7bcba7289ade3b7

  • SSDEEP

    12288:cIny5DYTgmzdRBDpfUyP/G1YKN2uN9x+m:6UTgmhRBFDncn2uN9x

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\7b25c9089ddb1056cef213ce6debe8eccbc635cbabdae9a210ab7fe58f1740f1.exe
    "C:\Users\Admin\AppData\Local\Temp\7b25c9089ddb1056cef213ce6debe8eccbc635cbabdae9a210ab7fe58f1740f1.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:3368
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2468
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4220
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4676
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1284
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2356
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4896
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4684
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:640
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4792
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:396
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3452
          • 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:2072
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1792

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoCD1B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97384c4d5dc2046db595874a3b49c084

            SHA1

            ae606ec4b4c9769950b1475fef75a3acdd468cab

            SHA256

            8d4823e8e4ddd515a023ab1cbef95b7e1f021e8cd94f2159bd09d453df9255e3

            SHA512

            d0ba04b05d1093189cef4cb27ae9c7544d2ec389da15ee40dcd22403aca574730b769bebecaef3509d3cdb5e26584f14953c967fc08576a51bb23d042226981e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97384c4d5dc2046db595874a3b49c084

            SHA1

            ae606ec4b4c9769950b1475fef75a3acdd468cab

            SHA256

            8d4823e8e4ddd515a023ab1cbef95b7e1f021e8cd94f2159bd09d453df9255e3

            SHA512

            d0ba04b05d1093189cef4cb27ae9c7544d2ec389da15ee40dcd22403aca574730b769bebecaef3509d3cdb5e26584f14953c967fc08576a51bb23d042226981e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97384c4d5dc2046db595874a3b49c084

            SHA1

            ae606ec4b4c9769950b1475fef75a3acdd468cab

            SHA256

            8d4823e8e4ddd515a023ab1cbef95b7e1f021e8cd94f2159bd09d453df9255e3

            SHA512

            d0ba04b05d1093189cef4cb27ae9c7544d2ec389da15ee40dcd22403aca574730b769bebecaef3509d3cdb5e26584f14953c967fc08576a51bb23d042226981e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            97384c4d5dc2046db595874a3b49c084

            SHA1

            ae606ec4b4c9769950b1475fef75a3acdd468cab

            SHA256

            8d4823e8e4ddd515a023ab1cbef95b7e1f021e8cd94f2159bd09d453df9255e3

            SHA512

            d0ba04b05d1093189cef4cb27ae9c7544d2ec389da15ee40dcd22403aca574730b769bebecaef3509d3cdb5e26584f14953c967fc08576a51bb23d042226981e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7d4d9bb42c77e193a39df421aca61b8a

            SHA1

            1442742d2df5b1f5cf1ca6bc691389ec94433537

            SHA256

            f3322d900788b1499454fa9ffaab58f4edd18834f8f0b8fbb08435c14273a5a3

            SHA512

            9b64825622669529fe14178a18b80b5d7d07fb851dce8dabc7501f01bb08ccdbf54fa1842ee10a99403dd8a53b462ed95fedd420c278b91e0632f485dee71c14

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7d4d9bb42c77e193a39df421aca61b8a

            SHA1

            1442742d2df5b1f5cf1ca6bc691389ec94433537

            SHA256

            f3322d900788b1499454fa9ffaab58f4edd18834f8f0b8fbb08435c14273a5a3

            SHA512

            9b64825622669529fe14178a18b80b5d7d07fb851dce8dabc7501f01bb08ccdbf54fa1842ee10a99403dd8a53b462ed95fedd420c278b91e0632f485dee71c14

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7d4d9bb42c77e193a39df421aca61b8a

            SHA1

            1442742d2df5b1f5cf1ca6bc691389ec94433537

            SHA256

            f3322d900788b1499454fa9ffaab58f4edd18834f8f0b8fbb08435c14273a5a3

            SHA512

            9b64825622669529fe14178a18b80b5d7d07fb851dce8dabc7501f01bb08ccdbf54fa1842ee10a99403dd8a53b462ed95fedd420c278b91e0632f485dee71c14

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            075d32bfe77550e6a46fb19ba925f075

            SHA1

            44ea3395063ef6e3de4609df0f0f0eb6b42da7f4

            SHA256

            f66d234b2c5a6964588467aad635ffbeb8e48646acf2a2c9665b0f980f3950b6

            SHA512

            ea8296c82a83d6bf4f0db3cc9d96ab924b30494ebf1d3153d2903947a7ef0baa672a2adae8829631bed74fbac2db158ac1c0434bb2c125f1b4e0a47b436a3e72

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            075d32bfe77550e6a46fb19ba925f075

            SHA1

            44ea3395063ef6e3de4609df0f0f0eb6b42da7f4

            SHA256

            f66d234b2c5a6964588467aad635ffbeb8e48646acf2a2c9665b0f980f3950b6

            SHA512

            ea8296c82a83d6bf4f0db3cc9d96ab924b30494ebf1d3153d2903947a7ef0baa672a2adae8829631bed74fbac2db158ac1c0434bb2c125f1b4e0a47b436a3e72

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            179cfd1a6c0e2e992cfb993a2c2075a9

            SHA1

            9117594c66e79d6a2fd62a65b2080a8d8890c2bd

            SHA256

            9e697778a3897c018b400439a5304d6f42ecde621c0bccb1a8cd4ce354083a25

            SHA512

            2b76454004b4cf1a4b66a0b30e57eb8032460351908925b6b678c9c91ed873f89fe84659e81b14a2b2d030b5d746d6d531e611a7bec7dce94b3fc97a47e11f4b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            179cfd1a6c0e2e992cfb993a2c2075a9

            SHA1

            9117594c66e79d6a2fd62a65b2080a8d8890c2bd

            SHA256

            9e697778a3897c018b400439a5304d6f42ecde621c0bccb1a8cd4ce354083a25

            SHA512

            2b76454004b4cf1a4b66a0b30e57eb8032460351908925b6b678c9c91ed873f89fe84659e81b14a2b2d030b5d746d6d531e611a7bec7dce94b3fc97a47e11f4b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            179cfd1a6c0e2e992cfb993a2c2075a9

            SHA1

            9117594c66e79d6a2fd62a65b2080a8d8890c2bd

            SHA256

            9e697778a3897c018b400439a5304d6f42ecde621c0bccb1a8cd4ce354083a25

            SHA512

            2b76454004b4cf1a4b66a0b30e57eb8032460351908925b6b678c9c91ed873f89fe84659e81b14a2b2d030b5d746d6d531e611a7bec7dce94b3fc97a47e11f4b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            95b0bf0c1f7687791d4fb7a27cad3ec6

            SHA1

            cf7c21396833905cf7bfec59c901bb08bf60637b

            SHA256

            20c525d101f2bbfcf27ea39c10c6123a006ebd78d0db9ccabba96311e283ae18

            SHA512

            1b20170717b0a1c90e051548ab36f566ee2ce265304c30d86f2d3ecab2a85b7a629273277ce2916c6275239b40b0ea7bb3167d558fa6d3b46e814e80bdc1435c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            95b0bf0c1f7687791d4fb7a27cad3ec6

            SHA1

            cf7c21396833905cf7bfec59c901bb08bf60637b

            SHA256

            20c525d101f2bbfcf27ea39c10c6123a006ebd78d0db9ccabba96311e283ae18

            SHA512

            1b20170717b0a1c90e051548ab36f566ee2ce265304c30d86f2d3ecab2a85b7a629273277ce2916c6275239b40b0ea7bb3167d558fa6d3b46e814e80bdc1435c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            95b0bf0c1f7687791d4fb7a27cad3ec6

            SHA1

            cf7c21396833905cf7bfec59c901bb08bf60637b

            SHA256

            20c525d101f2bbfcf27ea39c10c6123a006ebd78d0db9ccabba96311e283ae18

            SHA512

            1b20170717b0a1c90e051548ab36f566ee2ce265304c30d86f2d3ecab2a85b7a629273277ce2916c6275239b40b0ea7bb3167d558fa6d3b46e814e80bdc1435c

          • memory/396-165-0x0000000000000000-mapping.dmp

          • memory/640-158-0x0000000000000000-mapping.dmp

          • memory/1284-141-0x0000000000000000-mapping.dmp

          • memory/2356-142-0x0000000000000000-mapping.dmp

          • memory/2468-136-0x0000000000000000-mapping.dmp

          • memory/3368-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3368-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3452-166-0x0000000000000000-mapping.dmp

          • memory/4220-137-0x0000000000000000-mapping.dmp

          • memory/4676-140-0x0000000000000000-mapping.dmp

          • memory/4684-153-0x0000000000000000-mapping.dmp

          • memory/4792-159-0x0000000000000000-mapping.dmp

          • memory/4896-147-0x0000000000000000-mapping.dmp