Analysis

  • max time kernel
    45s
  • max time network
    49s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

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

General

  • Target

    db765ebead026637f803ffd1715d6e38bab0e55af7c45cacd1dd8e4718bbc4f3.exe

  • Size

    602KB

  • MD5

    98d4ab41e90cea2de09f2ccaf5f57d94

  • SHA1

    a6093410aeba2d9e74a1ff1aa95e5121f3e5874a

  • SHA256

    db765ebead026637f803ffd1715d6e38bab0e55af7c45cacd1dd8e4718bbc4f3

  • SHA512

    f46920a2a8f8203b04b8636d2e4f11e3c3ed783b34a99e97aff39298165860d16ec686f31c476ece274ea0748600324ec1208f637e898ba1cfbb72248abcad9a

  • SSDEEP

    12288:bIny5DYTuG9fKkzRHYnjz+I2PI2KR8OuSgQC:jUTuGFKkNYnHKIQxSgQ

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\db765ebead026637f803ffd1715d6e38bab0e55af7c45cacd1dd8e4718bbc4f3.exe
    "C:\Users\Admin\AppData\Local\Temp\db765ebead026637f803ffd1715d6e38bab0e55af7c45cacd1dd8e4718bbc4f3.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:1448
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1120
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1932
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1316
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:572
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:360
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1544
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1344
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1320
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:368
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:552
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1968
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1500

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            54047eaba620ca2d2c961de78023680f

            SHA1

            6eb150ec22715c3af38467def2bd6a5a4574fc39

            SHA256

            7ee93fdf4817d0b824db02c59db9333996e0defa83ca5f7ebdba86f9f6f5c1c0

            SHA512

            1954faf37c2aaa6a6e1c224c3c7e64266678f0a947aa05872c4fd8c9f985bf98f6c0deff5e51d7ef042a52ce80297fbbf3bedc8ca68cb4f0b59a485480da1d2f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4787cfc7afd2bfbee984967a046b001e

            SHA1

            5342830e2f77d95d2777d21d855d816c277bf502

            SHA256

            f6251d67cd099c8e419e38d179f42cb609f94bcaef8edcdc25a222a1a445c5e2

            SHA512

            ab85383e6211519373d2741396c134b4f2ea84ea9d04cb28d710fb9a9bdbea4c85dcad9ed6b8752facbe703a62bc56566547c252b8f13049a68a01829c3e5bee

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a0e6f704bf1608b92bb9894aa68409e5

            SHA1

            f6c27630d83438e1e4a82a7be617b5d35857140e

            SHA256

            bc4410daa3f56baa9c1fbf79a008a797c63be39882373d49c91bc68d571be843

            SHA512

            d353acf0c7c4ebb0ce646704f86726767080ba2c8bdc272a1c22d335c969d207e45a23faa4b20941b992971e06e08346f4f20c17ce0d3a7a2dcb854572dc89e4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            080ee58b5d225eb921a8014cca20b7ec

            SHA1

            15996d43c6d5350ac19f10a2e1fcd7899b2b8447

            SHA256

            988970b7ef6d93f20fb7bb78de151b567987c21d6ff328c2ce4cb6ec51b054b4

            SHA512

            b8f6903d7e04b034756adcb5012994eff749f92b2cd43bddd8a8de66521b6e9ba2eed0cdf4f2e819b53e2d72c270b78a55849b1e4dd2bb5764b644abc95bd3c2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            080ee58b5d225eb921a8014cca20b7ec

            SHA1

            15996d43c6d5350ac19f10a2e1fcd7899b2b8447

            SHA256

            988970b7ef6d93f20fb7bb78de151b567987c21d6ff328c2ce4cb6ec51b054b4

            SHA512

            b8f6903d7e04b034756adcb5012994eff749f92b2cd43bddd8a8de66521b6e9ba2eed0cdf4f2e819b53e2d72c270b78a55849b1e4dd2bb5764b644abc95bd3c2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4aee7b3f7d82f9f5f5a3a55a070902ad

            SHA1

            1f1171da0ce4d5b787d3cba2af65a4f52bee8a32

            SHA256

            e96c9b03a9372d4b8f3c635b7e906d2f161e580621eee4b0b40b4cca3fdb8a6c

            SHA512

            716981064bd1db94d90c2e735600739661e2247d8e811aa9514e53edbdde31082fcc8323745636fd13236ef606aff80d48106c04f774cb650d53e95ac25d9caa

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4aee7b3f7d82f9f5f5a3a55a070902ad

            SHA1

            1f1171da0ce4d5b787d3cba2af65a4f52bee8a32

            SHA256

            e96c9b03a9372d4b8f3c635b7e906d2f161e580621eee4b0b40b4cca3fdb8a6c

            SHA512

            716981064bd1db94d90c2e735600739661e2247d8e811aa9514e53edbdde31082fcc8323745636fd13236ef606aff80d48106c04f774cb650d53e95ac25d9caa

          • \Users\Admin\AppData\Local\Temp\nsy234C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy234C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy234C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy234C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy234C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            54047eaba620ca2d2c961de78023680f

            SHA1

            6eb150ec22715c3af38467def2bd6a5a4574fc39

            SHA256

            7ee93fdf4817d0b824db02c59db9333996e0defa83ca5f7ebdba86f9f6f5c1c0

            SHA512

            1954faf37c2aaa6a6e1c224c3c7e64266678f0a947aa05872c4fd8c9f985bf98f6c0deff5e51d7ef042a52ce80297fbbf3bedc8ca68cb4f0b59a485480da1d2f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            54047eaba620ca2d2c961de78023680f

            SHA1

            6eb150ec22715c3af38467def2bd6a5a4574fc39

            SHA256

            7ee93fdf4817d0b824db02c59db9333996e0defa83ca5f7ebdba86f9f6f5c1c0

            SHA512

            1954faf37c2aaa6a6e1c224c3c7e64266678f0a947aa05872c4fd8c9f985bf98f6c0deff5e51d7ef042a52ce80297fbbf3bedc8ca68cb4f0b59a485480da1d2f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            54047eaba620ca2d2c961de78023680f

            SHA1

            6eb150ec22715c3af38467def2bd6a5a4574fc39

            SHA256

            7ee93fdf4817d0b824db02c59db9333996e0defa83ca5f7ebdba86f9f6f5c1c0

            SHA512

            1954faf37c2aaa6a6e1c224c3c7e64266678f0a947aa05872c4fd8c9f985bf98f6c0deff5e51d7ef042a52ce80297fbbf3bedc8ca68cb4f0b59a485480da1d2f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4787cfc7afd2bfbee984967a046b001e

            SHA1

            5342830e2f77d95d2777d21d855d816c277bf502

            SHA256

            f6251d67cd099c8e419e38d179f42cb609f94bcaef8edcdc25a222a1a445c5e2

            SHA512

            ab85383e6211519373d2741396c134b4f2ea84ea9d04cb28d710fb9a9bdbea4c85dcad9ed6b8752facbe703a62bc56566547c252b8f13049a68a01829c3e5bee

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            4787cfc7afd2bfbee984967a046b001e

            SHA1

            5342830e2f77d95d2777d21d855d816c277bf502

            SHA256

            f6251d67cd099c8e419e38d179f42cb609f94bcaef8edcdc25a222a1a445c5e2

            SHA512

            ab85383e6211519373d2741396c134b4f2ea84ea9d04cb28d710fb9a9bdbea4c85dcad9ed6b8752facbe703a62bc56566547c252b8f13049a68a01829c3e5bee

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            a0e6f704bf1608b92bb9894aa68409e5

            SHA1

            f6c27630d83438e1e4a82a7be617b5d35857140e

            SHA256

            bc4410daa3f56baa9c1fbf79a008a797c63be39882373d49c91bc68d571be843

            SHA512

            d353acf0c7c4ebb0ce646704f86726767080ba2c8bdc272a1c22d335c969d207e45a23faa4b20941b992971e06e08346f4f20c17ce0d3a7a2dcb854572dc89e4

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            080ee58b5d225eb921a8014cca20b7ec

            SHA1

            15996d43c6d5350ac19f10a2e1fcd7899b2b8447

            SHA256

            988970b7ef6d93f20fb7bb78de151b567987c21d6ff328c2ce4cb6ec51b054b4

            SHA512

            b8f6903d7e04b034756adcb5012994eff749f92b2cd43bddd8a8de66521b6e9ba2eed0cdf4f2e819b53e2d72c270b78a55849b1e4dd2bb5764b644abc95bd3c2

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            4aee7b3f7d82f9f5f5a3a55a070902ad

            SHA1

            1f1171da0ce4d5b787d3cba2af65a4f52bee8a32

            SHA256

            e96c9b03a9372d4b8f3c635b7e906d2f161e580621eee4b0b40b4cca3fdb8a6c

            SHA512

            716981064bd1db94d90c2e735600739661e2247d8e811aa9514e53edbdde31082fcc8323745636fd13236ef606aff80d48106c04f774cb650d53e95ac25d9caa

          • memory/360-70-0x0000000000000000-mapping.dmp

          • memory/368-86-0x0000000000000000-mapping.dmp

          • memory/552-87-0x0000000000000000-mapping.dmp

          • memory/568-61-0x0000000000000000-mapping.dmp

          • memory/572-64-0x0000000000000000-mapping.dmp

          • memory/1120-57-0x0000000000000000-mapping.dmp

          • memory/1316-62-0x0000000000000000-mapping.dmp

          • memory/1320-81-0x0000000000000000-mapping.dmp

          • memory/1344-80-0x0000000000000000-mapping.dmp

          • memory/1448-54-0x00000000758B1000-0x00000000758B3000-memory.dmp

            Filesize

            8KB

          • memory/1448-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1448-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1544-76-0x0000000000000000-mapping.dmp

          • memory/1932-58-0x0000000000000000-mapping.dmp