Analysis

  • max time kernel
    40s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:08

General

  • Target

    eb5b7ab62cee815e44049a2aa5c1b28f777b89a07fb4b102f6ec70f204935e87.exe

  • Size

    592KB

  • MD5

    babccb76b79aa6ec0322bb75be08b1c8

  • SHA1

    e3cb313c5ce163c677369af9cef95621b4cc1a99

  • SHA256

    eb5b7ab62cee815e44049a2aa5c1b28f777b89a07fb4b102f6ec70f204935e87

  • SHA512

    6af2645c2431d760fd993bd8b6304e5ead6e1d8c6534ef458470e92ee2639174ec99b69cb2140ee75154c44a71e712b6b0d67341518b21f6ddf16b92b6556452

  • SSDEEP

    12288:aIny5DYTXIzcfvAOXW60XfVlM7o/j/zAfdc0cMoGKwoxFUj:8UTX4MAO2tlRj/zQcWeUj

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\eb5b7ab62cee815e44049a2aa5c1b28f777b89a07fb4b102f6ec70f204935e87.exe
    "C:\Users\Admin\AppData\Local\Temp\eb5b7ab62cee815e44049a2aa5c1b28f777b89a07fb4b102f6ec70f204935e87.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:1500
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:876
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1116
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2040
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2008
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2020
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1016
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1352
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1944
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1328
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1280
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:996
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1800
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:472

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            941379d96100d010f6b899eb1ace71f2

            SHA1

            891f6a13ac5e4a79f2e535322d7f15e9ccd29787

            SHA256

            415a0a3f5e1a882040df7faa7ee4bd9efcee6f108a2bc3724ef5da7d4dfec646

            SHA512

            56f4c2003fcfbfb74e351b5507dcb39ef4ea5fc1c0b8dbb432fc7c55cdc375e71f28e3836fec8d5b8afd6622c5efd036479d8298a329c7c470943556c127811e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            04e7cb026c52294508d9109e06360ec0

            SHA1

            fbb22fac464eaebd318bc981ee4be3d0f7f2ee13

            SHA256

            4e3d807320496550c88c61ec62c54e2b44910101ec1ada70f943f55924f53bdf

            SHA512

            99b54dee74211bec42bd2e32347258e14b80c80e8fad0e22bf16e52b604923559b886ae2faac2d33965536d43bb3df5fc45d82a3417cf893f30ae180fc6f41ea

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            37d3a154d17868b748e7f1bd020f255c

            SHA1

            36c8bf45830ffc9b2105c30773fa202e3fafbdb0

            SHA256

            f4f440916a2781c07fc5b4c47f44251d5e09bf08cc9c7cb53f50f07807106925

            SHA512

            a5b36e4175b77aca4fe5ffc1c39bca5f6cd9b29cd012a6909783d165a3218a618ddaea8c3af685c729fe17d2f6eef1bc730017ff879f307151144483a2492b3a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            45e1c9f66bab47a7e2b4c30854b8e7c8

            SHA1

            31d115dbb10723b0000a8ee3222c5374e37f7a44

            SHA256

            b077a48be8020be9388aefdadcec7de8a1ddeb3153bf9c5687373a75147a76eb

            SHA512

            dd6259c20e3ecc0b5be50afaee7275aa86493bb3da3c81dc75446fe3d8cfc830a1762c60cf5dff8606bd2cf119388691d945918713ae98b9d66ed0365e98071d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            45e1c9f66bab47a7e2b4c30854b8e7c8

            SHA1

            31d115dbb10723b0000a8ee3222c5374e37f7a44

            SHA256

            b077a48be8020be9388aefdadcec7de8a1ddeb3153bf9c5687373a75147a76eb

            SHA512

            dd6259c20e3ecc0b5be50afaee7275aa86493bb3da3c81dc75446fe3d8cfc830a1762c60cf5dff8606bd2cf119388691d945918713ae98b9d66ed0365e98071d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            117eb6b6af6290c439713412fcc89c10

            SHA1

            15e4f51e3c1188cb721fc685af4d8527df5b8aa7

            SHA256

            272ad65d05fbaf272c48ee122dc105a2cbee2691286192c44a7e39088edd827d

            SHA512

            5d691fb3e5fe3e9646690ce9ebf518b7b14f746cc3b7302f64f29c01259fcefb99dd1d39a90fa7d44fe3b07b82cdee00e3be21c608efa014c64d18509de50786

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            117eb6b6af6290c439713412fcc89c10

            SHA1

            15e4f51e3c1188cb721fc685af4d8527df5b8aa7

            SHA256

            272ad65d05fbaf272c48ee122dc105a2cbee2691286192c44a7e39088edd827d

            SHA512

            5d691fb3e5fe3e9646690ce9ebf518b7b14f746cc3b7302f64f29c01259fcefb99dd1d39a90fa7d44fe3b07b82cdee00e3be21c608efa014c64d18509de50786

          • \Users\Admin\AppData\Local\Temp\nso563E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso563E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso563E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso563E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso563E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            941379d96100d010f6b899eb1ace71f2

            SHA1

            891f6a13ac5e4a79f2e535322d7f15e9ccd29787

            SHA256

            415a0a3f5e1a882040df7faa7ee4bd9efcee6f108a2bc3724ef5da7d4dfec646

            SHA512

            56f4c2003fcfbfb74e351b5507dcb39ef4ea5fc1c0b8dbb432fc7c55cdc375e71f28e3836fec8d5b8afd6622c5efd036479d8298a329c7c470943556c127811e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            941379d96100d010f6b899eb1ace71f2

            SHA1

            891f6a13ac5e4a79f2e535322d7f15e9ccd29787

            SHA256

            415a0a3f5e1a882040df7faa7ee4bd9efcee6f108a2bc3724ef5da7d4dfec646

            SHA512

            56f4c2003fcfbfb74e351b5507dcb39ef4ea5fc1c0b8dbb432fc7c55cdc375e71f28e3836fec8d5b8afd6622c5efd036479d8298a329c7c470943556c127811e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            941379d96100d010f6b899eb1ace71f2

            SHA1

            891f6a13ac5e4a79f2e535322d7f15e9ccd29787

            SHA256

            415a0a3f5e1a882040df7faa7ee4bd9efcee6f108a2bc3724ef5da7d4dfec646

            SHA512

            56f4c2003fcfbfb74e351b5507dcb39ef4ea5fc1c0b8dbb432fc7c55cdc375e71f28e3836fec8d5b8afd6622c5efd036479d8298a329c7c470943556c127811e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            04e7cb026c52294508d9109e06360ec0

            SHA1

            fbb22fac464eaebd318bc981ee4be3d0f7f2ee13

            SHA256

            4e3d807320496550c88c61ec62c54e2b44910101ec1ada70f943f55924f53bdf

            SHA512

            99b54dee74211bec42bd2e32347258e14b80c80e8fad0e22bf16e52b604923559b886ae2faac2d33965536d43bb3df5fc45d82a3417cf893f30ae180fc6f41ea

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            04e7cb026c52294508d9109e06360ec0

            SHA1

            fbb22fac464eaebd318bc981ee4be3d0f7f2ee13

            SHA256

            4e3d807320496550c88c61ec62c54e2b44910101ec1ada70f943f55924f53bdf

            SHA512

            99b54dee74211bec42bd2e32347258e14b80c80e8fad0e22bf16e52b604923559b886ae2faac2d33965536d43bb3df5fc45d82a3417cf893f30ae180fc6f41ea

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            37d3a154d17868b748e7f1bd020f255c

            SHA1

            36c8bf45830ffc9b2105c30773fa202e3fafbdb0

            SHA256

            f4f440916a2781c07fc5b4c47f44251d5e09bf08cc9c7cb53f50f07807106925

            SHA512

            a5b36e4175b77aca4fe5ffc1c39bca5f6cd9b29cd012a6909783d165a3218a618ddaea8c3af685c729fe17d2f6eef1bc730017ff879f307151144483a2492b3a

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            45e1c9f66bab47a7e2b4c30854b8e7c8

            SHA1

            31d115dbb10723b0000a8ee3222c5374e37f7a44

            SHA256

            b077a48be8020be9388aefdadcec7de8a1ddeb3153bf9c5687373a75147a76eb

            SHA512

            dd6259c20e3ecc0b5be50afaee7275aa86493bb3da3c81dc75446fe3d8cfc830a1762c60cf5dff8606bd2cf119388691d945918713ae98b9d66ed0365e98071d

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            117eb6b6af6290c439713412fcc89c10

            SHA1

            15e4f51e3c1188cb721fc685af4d8527df5b8aa7

            SHA256

            272ad65d05fbaf272c48ee122dc105a2cbee2691286192c44a7e39088edd827d

            SHA512

            5d691fb3e5fe3e9646690ce9ebf518b7b14f746cc3b7302f64f29c01259fcefb99dd1d39a90fa7d44fe3b07b82cdee00e3be21c608efa014c64d18509de50786

          • memory/876-57-0x0000000000000000-mapping.dmp

          • memory/996-87-0x0000000000000000-mapping.dmp

          • memory/1016-70-0x0000000000000000-mapping.dmp

          • memory/1116-58-0x0000000000000000-mapping.dmp

          • memory/1280-86-0x0000000000000000-mapping.dmp

          • memory/1328-81-0x0000000000000000-mapping.dmp

          • memory/1352-76-0x0000000000000000-mapping.dmp

          • memory/1500-54-0x0000000076201000-0x0000000076203000-memory.dmp

            Filesize

            8KB

          • memory/1500-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1500-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1944-80-0x0000000000000000-mapping.dmp

          • memory/2008-62-0x0000000000000000-mapping.dmp

          • memory/2020-64-0x0000000000000000-mapping.dmp

          • memory/2040-61-0x0000000000000000-mapping.dmp