Analysis

  • max time kernel
    47s
  • max time network
    52s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    982096fc40eab95ea974cb59d6caa3ba9cfad5608e5cbbb265dcf656aa1e4e8a.exe

  • Size

    602KB

  • MD5

    d8fa652ce4a2f264f4f45996d896f31a

  • SHA1

    4f2539e6b7ba75e4de101d5bafd9b04020e22d91

  • SHA256

    982096fc40eab95ea974cb59d6caa3ba9cfad5608e5cbbb265dcf656aa1e4e8a

  • SHA512

    4f45ec3600ed6792fe0521db3dcdc1122c7f35e0804f5dfc50191ff211ceabb6c45803e16244529725b1b28e46ceb5b96b684614d971f7a3fb8da5c1bffe401d

  • SSDEEP

    12288:bIny5DYT6skk/Dj/1LPA/WWqQO4dJGPaItzvBW:jUTVkSjlI/5O44F

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\982096fc40eab95ea974cb59d6caa3ba9cfad5608e5cbbb265dcf656aa1e4e8a.exe
    "C:\Users\Admin\AppData\Local\Temp\982096fc40eab95ea974cb59d6caa3ba9cfad5608e5cbbb265dcf656aa1e4e8a.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:1204
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1744
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1528
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:332
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:792
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1096
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1592
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2012
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1492
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:904
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1788
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2036
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2000

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            bbb7cfb4e8cb9f6641843ecd73c7e1a6

            SHA1

            03ee064874f3528540960af178795760fa4dde32

            SHA256

            c1e939ee4812954af92bf8e82cb518dcd06b46d70959083b1849f171265eee87

            SHA512

            d5253561af2f66bc4c10944ad5361b28a35d11b721f2f4df0deb719866574ecb2e4de763bf8cba9ea22dda8503ab013534f1352d0ce99e2f1d47c5685079ec1b

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            335c780a51781381d7d2b7961d0f1c0d

            SHA1

            52c0b66f8e1dfb4f62b2025b21a4ab501429ae39

            SHA256

            f7fe4eb81b192ef2350579d1e5545f3058c48cd7437d4b2fb07910c44e5689e2

            SHA512

            08d26227a1d8a7c98b6bf3f2560abfe4a886fe6b89221d828109a00312557ce253ebf0143b6796e353aa715f92a1410c8c080088e83ae457231ddccbf2f81738

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            9a1071a6de5c7d4d0f4633538f9c3a72

            SHA1

            0ef8fd69ca386243095640ff23a5c43330b61be5

            SHA256

            64420b5200069d2222a0b1eb9e660b38948e9d3599a8b6b7285111581f8a29f3

            SHA512

            0797a09afbb670e8ff151f07be66115de425e602e51161b80d4a7e1766fa0d7f0bd4e2c13820494c6d7272adf9d829a92f3210d4e3f64fe5ae2c5db3a3f4d7a4

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            abceedc4ab72878ee222e2209cf63f38

            SHA1

            87d549085dfd254d22342edafec19f38d39ea703

            SHA256

            6cc3713e79a8defc44d811a20893fd6913bad57abc9c2e75582ae18a62c3f9ae

            SHA512

            06b21dd7606e4a6aaa2dd017277da8dbc94a2b21ee715111285017fcbd66c4933aa6a6a737bd24a598a801beae312d000791c5812411ecb63f0d752819031672

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            abceedc4ab72878ee222e2209cf63f38

            SHA1

            87d549085dfd254d22342edafec19f38d39ea703

            SHA256

            6cc3713e79a8defc44d811a20893fd6913bad57abc9c2e75582ae18a62c3f9ae

            SHA512

            06b21dd7606e4a6aaa2dd017277da8dbc94a2b21ee715111285017fcbd66c4933aa6a6a737bd24a598a801beae312d000791c5812411ecb63f0d752819031672

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            b3b5c54c114a17fb569080c1d6afd135

            SHA1

            e338ee6121bdcc813f3c6911eb46dd942884bc6b

            SHA256

            f30e1609f33b5fd96f86232245c1371730a76760d600b0db4fbfb87de7bac4b6

            SHA512

            90ee3505d3682d6759e6d6735c2373f46ff27748cb0174920500c057a09c8dda1e0ec3abdbb0a53c8edebce63014e01fff08e3b042e86b5d38a2577b48762536

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            b3b5c54c114a17fb569080c1d6afd135

            SHA1

            e338ee6121bdcc813f3c6911eb46dd942884bc6b

            SHA256

            f30e1609f33b5fd96f86232245c1371730a76760d600b0db4fbfb87de7bac4b6

            SHA512

            90ee3505d3682d6759e6d6735c2373f46ff27748cb0174920500c057a09c8dda1e0ec3abdbb0a53c8edebce63014e01fff08e3b042e86b5d38a2577b48762536

          • \Users\Admin\AppData\Local\Temp\nso2C32.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso2C32.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2C32.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2C32.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso2C32.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            bbb7cfb4e8cb9f6641843ecd73c7e1a6

            SHA1

            03ee064874f3528540960af178795760fa4dde32

            SHA256

            c1e939ee4812954af92bf8e82cb518dcd06b46d70959083b1849f171265eee87

            SHA512

            d5253561af2f66bc4c10944ad5361b28a35d11b721f2f4df0deb719866574ecb2e4de763bf8cba9ea22dda8503ab013534f1352d0ce99e2f1d47c5685079ec1b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            bbb7cfb4e8cb9f6641843ecd73c7e1a6

            SHA1

            03ee064874f3528540960af178795760fa4dde32

            SHA256

            c1e939ee4812954af92bf8e82cb518dcd06b46d70959083b1849f171265eee87

            SHA512

            d5253561af2f66bc4c10944ad5361b28a35d11b721f2f4df0deb719866574ecb2e4de763bf8cba9ea22dda8503ab013534f1352d0ce99e2f1d47c5685079ec1b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            bbb7cfb4e8cb9f6641843ecd73c7e1a6

            SHA1

            03ee064874f3528540960af178795760fa4dde32

            SHA256

            c1e939ee4812954af92bf8e82cb518dcd06b46d70959083b1849f171265eee87

            SHA512

            d5253561af2f66bc4c10944ad5361b28a35d11b721f2f4df0deb719866574ecb2e4de763bf8cba9ea22dda8503ab013534f1352d0ce99e2f1d47c5685079ec1b

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            335c780a51781381d7d2b7961d0f1c0d

            SHA1

            52c0b66f8e1dfb4f62b2025b21a4ab501429ae39

            SHA256

            f7fe4eb81b192ef2350579d1e5545f3058c48cd7437d4b2fb07910c44e5689e2

            SHA512

            08d26227a1d8a7c98b6bf3f2560abfe4a886fe6b89221d828109a00312557ce253ebf0143b6796e353aa715f92a1410c8c080088e83ae457231ddccbf2f81738

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            335c780a51781381d7d2b7961d0f1c0d

            SHA1

            52c0b66f8e1dfb4f62b2025b21a4ab501429ae39

            SHA256

            f7fe4eb81b192ef2350579d1e5545f3058c48cd7437d4b2fb07910c44e5689e2

            SHA512

            08d26227a1d8a7c98b6bf3f2560abfe4a886fe6b89221d828109a00312557ce253ebf0143b6796e353aa715f92a1410c8c080088e83ae457231ddccbf2f81738

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            9a1071a6de5c7d4d0f4633538f9c3a72

            SHA1

            0ef8fd69ca386243095640ff23a5c43330b61be5

            SHA256

            64420b5200069d2222a0b1eb9e660b38948e9d3599a8b6b7285111581f8a29f3

            SHA512

            0797a09afbb670e8ff151f07be66115de425e602e51161b80d4a7e1766fa0d7f0bd4e2c13820494c6d7272adf9d829a92f3210d4e3f64fe5ae2c5db3a3f4d7a4

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            abceedc4ab72878ee222e2209cf63f38

            SHA1

            87d549085dfd254d22342edafec19f38d39ea703

            SHA256

            6cc3713e79a8defc44d811a20893fd6913bad57abc9c2e75582ae18a62c3f9ae

            SHA512

            06b21dd7606e4a6aaa2dd017277da8dbc94a2b21ee715111285017fcbd66c4933aa6a6a737bd24a598a801beae312d000791c5812411ecb63f0d752819031672

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            b3b5c54c114a17fb569080c1d6afd135

            SHA1

            e338ee6121bdcc813f3c6911eb46dd942884bc6b

            SHA256

            f30e1609f33b5fd96f86232245c1371730a76760d600b0db4fbfb87de7bac4b6

            SHA512

            90ee3505d3682d6759e6d6735c2373f46ff27748cb0174920500c057a09c8dda1e0ec3abdbb0a53c8edebce63014e01fff08e3b042e86b5d38a2577b48762536

          • memory/332-62-0x0000000000000000-mapping.dmp
          • memory/792-64-0x0000000000000000-mapping.dmp
          • memory/904-86-0x0000000000000000-mapping.dmp
          • memory/1096-70-0x0000000000000000-mapping.dmp
          • memory/1204-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1204-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp
            Filesize

            8KB

          • memory/1204-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1492-81-0x0000000000000000-mapping.dmp
          • memory/1528-61-0x0000000000000000-mapping.dmp
          • memory/1592-76-0x0000000000000000-mapping.dmp
          • memory/1744-59-0x0000000000000000-mapping.dmp
          • memory/1788-87-0x0000000000000000-mapping.dmp
          • memory/2012-80-0x0000000000000000-mapping.dmp
          • memory/2044-58-0x0000000000000000-mapping.dmp