Analysis

  • max time kernel
    47s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:52

General

  • Target

    b80ed4f00a9016d69302628cb4e8e0537f66b330ae189f76b47a6b83634272d7.exe

  • Size

    446KB

  • MD5

    bd4ee97c4a8353ed399404072d59a0ee

  • SHA1

    6f57988278e0baa950e0d69a08953233e7e4a8f7

  • SHA256

    b80ed4f00a9016d69302628cb4e8e0537f66b330ae189f76b47a6b83634272d7

  • SHA512

    a16721aa791e7e58abdcabc2a276e1367588dabc19152d23b1967b83b20e0dcf9f4168532138616a7e35d098675a1e5abffdc08125c38339a7cd2f2b26edc84c

  • SSDEEP

    12288:n89M3VLbiUvvVdSGgL7L3AsEpNb6tryfhuI/8rZ:n89CVlvvVdShL3AhNWtGfke4Z

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\b80ed4f00a9016d69302628cb4e8e0537f66b330ae189f76b47a6b83634272d7.exe
    "C:\Users\Admin\AppData\Local\Temp\b80ed4f00a9016d69302628cb4e8e0537f66b330ae189f76b47a6b83634272d7.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:1244
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2020
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1164
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:520
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1112
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1780
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1680
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:972
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1084
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:664
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1732
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:788
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1464

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            423d1c4273104590a19cbc1d3bd92338

            SHA1

            9730f3d12fd86e831d674ccb0bb252220edada79

            SHA256

            fac059be4c1a75e36e34ba1d511ee80171bb043a69ab219bc483f7ddc045ffb3

            SHA512

            3717921a29786f81fe12bc34534643027f193f4314725cb4099165e17720a4d5461dc6b5b65121a74ffa6480297718f3d02955a96a9564502ac2aefa5fa769a1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0c094db004d217d2ed15c8b8412d1da4

            SHA1

            3fbfda3a4c299cc885320968ef54bbe1020ace2f

            SHA256

            f8db568f3df86ba37bc63d3bbab2e3398927ee85d054efeb70132065be4dba8d

            SHA512

            195f96d48b8145ccc8e462f509388c8ab7768f94eaa5bae22c7f433e4ba3bbfd7271cb114132b338457e13e79419b82f9e8edd833183bb23bb6abd84124dcb9b

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c65d3dfd1456f3055c6682c27ea0abee

            SHA1

            b3306eee80d0aba20e23efb35ab988d353e4b866

            SHA256

            80af9c573f9eeae95c17d7eb6be78425ea2bae7fa76e25c26d1f716c264b529f

            SHA512

            f3c479a211f5e2d2f969708d3bcbd33ac0fc44940a8ec0522661dd19c79b1cc0012152bb42684245bbfd736d3a443269dcb2c1c0a41eb2766b9f090906d7e65f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0a2eb66034baa880529b94cbdddef845

            SHA1

            ab53c05ffc2c1b149cffa76b617df8730a4e2cae

            SHA256

            0195d36e89b8cf03a628e3c24baf98e029af0e4b7e7f9a31b388ab16b12bc8fd

            SHA512

            04e93573d99a6b4dcf630b9ff92f8afdf074b01aae33ec3ee8cdc291cfeb244cba7c1f58ad8407e47522f0db558633d1bd695e83a717db5cc73b091e78d4823e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0a2eb66034baa880529b94cbdddef845

            SHA1

            ab53c05ffc2c1b149cffa76b617df8730a4e2cae

            SHA256

            0195d36e89b8cf03a628e3c24baf98e029af0e4b7e7f9a31b388ab16b12bc8fd

            SHA512

            04e93573d99a6b4dcf630b9ff92f8afdf074b01aae33ec3ee8cdc291cfeb244cba7c1f58ad8407e47522f0db558633d1bd695e83a717db5cc73b091e78d4823e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            454b7cfca3894c1a43cb831469e82d2b

            SHA1

            e4188b3c11479972fff119b4dcc2b2d7293c28aa

            SHA256

            87ab9a473feee61497a30b6eb770592551a6f3fc0a7381617b514c2259635a7c

            SHA512

            536912d9e66e69e7e0d732484148bf39929bf59013da91d0351dbd64527162f2bb00bffc56377c1d4807d9a4aea3cbceeb38e4f10c6629162af54c33af5b41a0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            454b7cfca3894c1a43cb831469e82d2b

            SHA1

            e4188b3c11479972fff119b4dcc2b2d7293c28aa

            SHA256

            87ab9a473feee61497a30b6eb770592551a6f3fc0a7381617b514c2259635a7c

            SHA512

            536912d9e66e69e7e0d732484148bf39929bf59013da91d0351dbd64527162f2bb00bffc56377c1d4807d9a4aea3cbceeb38e4f10c6629162af54c33af5b41a0

          • \Users\Admin\AppData\Local\Temp\nsj50F1.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj50F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj50F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj50F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj50F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            423d1c4273104590a19cbc1d3bd92338

            SHA1

            9730f3d12fd86e831d674ccb0bb252220edada79

            SHA256

            fac059be4c1a75e36e34ba1d511ee80171bb043a69ab219bc483f7ddc045ffb3

            SHA512

            3717921a29786f81fe12bc34534643027f193f4314725cb4099165e17720a4d5461dc6b5b65121a74ffa6480297718f3d02955a96a9564502ac2aefa5fa769a1

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            423d1c4273104590a19cbc1d3bd92338

            SHA1

            9730f3d12fd86e831d674ccb0bb252220edada79

            SHA256

            fac059be4c1a75e36e34ba1d511ee80171bb043a69ab219bc483f7ddc045ffb3

            SHA512

            3717921a29786f81fe12bc34534643027f193f4314725cb4099165e17720a4d5461dc6b5b65121a74ffa6480297718f3d02955a96a9564502ac2aefa5fa769a1

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            423d1c4273104590a19cbc1d3bd92338

            SHA1

            9730f3d12fd86e831d674ccb0bb252220edada79

            SHA256

            fac059be4c1a75e36e34ba1d511ee80171bb043a69ab219bc483f7ddc045ffb3

            SHA512

            3717921a29786f81fe12bc34534643027f193f4314725cb4099165e17720a4d5461dc6b5b65121a74ffa6480297718f3d02955a96a9564502ac2aefa5fa769a1

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0c094db004d217d2ed15c8b8412d1da4

            SHA1

            3fbfda3a4c299cc885320968ef54bbe1020ace2f

            SHA256

            f8db568f3df86ba37bc63d3bbab2e3398927ee85d054efeb70132065be4dba8d

            SHA512

            195f96d48b8145ccc8e462f509388c8ab7768f94eaa5bae22c7f433e4ba3bbfd7271cb114132b338457e13e79419b82f9e8edd833183bb23bb6abd84124dcb9b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0c094db004d217d2ed15c8b8412d1da4

            SHA1

            3fbfda3a4c299cc885320968ef54bbe1020ace2f

            SHA256

            f8db568f3df86ba37bc63d3bbab2e3398927ee85d054efeb70132065be4dba8d

            SHA512

            195f96d48b8145ccc8e462f509388c8ab7768f94eaa5bae22c7f433e4ba3bbfd7271cb114132b338457e13e79419b82f9e8edd833183bb23bb6abd84124dcb9b

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c65d3dfd1456f3055c6682c27ea0abee

            SHA1

            b3306eee80d0aba20e23efb35ab988d353e4b866

            SHA256

            80af9c573f9eeae95c17d7eb6be78425ea2bae7fa76e25c26d1f716c264b529f

            SHA512

            f3c479a211f5e2d2f969708d3bcbd33ac0fc44940a8ec0522661dd19c79b1cc0012152bb42684245bbfd736d3a443269dcb2c1c0a41eb2766b9f090906d7e65f

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0a2eb66034baa880529b94cbdddef845

            SHA1

            ab53c05ffc2c1b149cffa76b617df8730a4e2cae

            SHA256

            0195d36e89b8cf03a628e3c24baf98e029af0e4b7e7f9a31b388ab16b12bc8fd

            SHA512

            04e93573d99a6b4dcf630b9ff92f8afdf074b01aae33ec3ee8cdc291cfeb244cba7c1f58ad8407e47522f0db558633d1bd695e83a717db5cc73b091e78d4823e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            454b7cfca3894c1a43cb831469e82d2b

            SHA1

            e4188b3c11479972fff119b4dcc2b2d7293c28aa

            SHA256

            87ab9a473feee61497a30b6eb770592551a6f3fc0a7381617b514c2259635a7c

            SHA512

            536912d9e66e69e7e0d732484148bf39929bf59013da91d0351dbd64527162f2bb00bffc56377c1d4807d9a4aea3cbceeb38e4f10c6629162af54c33af5b41a0

          • memory/268-58-0x0000000000000000-mapping.dmp

          • memory/520-61-0x0000000000000000-mapping.dmp

          • memory/664-85-0x0000000000000000-mapping.dmp

          • memory/972-79-0x0000000000000000-mapping.dmp

          • memory/1084-80-0x0000000000000000-mapping.dmp

          • memory/1112-63-0x0000000000000000-mapping.dmp

          • memory/1164-60-0x0000000000000000-mapping.dmp

          • memory/1244-54-0x0000000076531000-0x0000000076533000-memory.dmp

            Filesize

            8KB

          • memory/1680-75-0x0000000000000000-mapping.dmp

          • memory/1732-86-0x0000000000000000-mapping.dmp

          • memory/1780-69-0x0000000000000000-mapping.dmp

          • memory/2020-57-0x0000000000000000-mapping.dmp