Analysis

  • max time kernel
    44s
  • 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 10:28

General

  • Target

    3ccbce7a05c4ae8335b7e2c619ef03385dd38f728d266c8abce612afc45d04a4.exe

  • Size

    601KB

  • MD5

    625e9be7da07493b7e9ad4b9ede3c1d2

  • SHA1

    3a2bdece988d2aacb2ca702601eed1445b259fb3

  • SHA256

    3ccbce7a05c4ae8335b7e2c619ef03385dd38f728d266c8abce612afc45d04a4

  • SHA512

    0567d2ea7c81b0a2b3a9fb8a6ca734b8a78fe3b0d3493b8b84ea8bd93647fad750833b428cfec0485821470223606f5656a97c3c34f087ae2e87dbb29e316e20

  • SSDEEP

    12288:hIny5DYTtk0QNtFZRbBoKXljU1lS4LGaq9xKP0Oot3/UJ3Zsn9oa41:dUTt6PFSkjYlS4LGaq9A8ssJ4

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\3ccbce7a05c4ae8335b7e2c619ef03385dd38f728d266c8abce612afc45d04a4.exe
    "C:\Users\Admin\AppData\Local\Temp\3ccbce7a05c4ae8335b7e2c619ef03385dd38f728d266c8abce612afc45d04a4.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:1812
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:892
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1616
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:560
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1584
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:756
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1008
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1188
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1488
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1380
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1312
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1192
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1976

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3838c8c4fed812577320bd0dda27119

            SHA1

            6a750369421984e589d3abb679ce553a8192aa74

            SHA256

            5052d92b25765fd11fe2c5d7dd85dc4ca52cef8803958466e2a7479c3526131e

            SHA512

            0843a3c9061ebe9cb362dc0d72f4979c311cd3a755d471acdc8807afe90b0f0afab8075ee636b08cd9f4b5b94e16b2f18282d43c4d40213fd1b299a705360261

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2b29d73981d78d67f93d580e92af9928

            SHA1

            d367eb9d0548272aca2c1fe967fea65511e98a51

            SHA256

            03219bab4b73cef5f63db7b005b3bfadbe449e8a2a88558ab5d474033190e9b9

            SHA512

            9e780fd5f45b88b3db2d831dad696aa66f22d3db38c26cf3e45f5ac138bd869e78086952646ebb1156d1d98ae0554579a477b5ccdbc25a174fdd9d2483ac0f29

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e5c0dd5478ac09bedcf940be111586d8

            SHA1

            58b790f77c212913fad5b8ce1c8e565e8023ad3b

            SHA256

            578066829179bc45fd3e713ce8a00f51eee9bad5bcfaefcde892b276d8504f52

            SHA512

            f2331fc5a86c93a0b1870448c463bbe32b2bc97cc42631b8c4ed2c17b7ba456d3888ede4f3efc12f2eced86aa46d8bd54fbc53aaa704965420cf65eb1eb5dc78

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2085e480ea0d4236a51ddc48a53a112f

            SHA1

            272c3f075fb8d1c6ad0ee899d8556661ae301257

            SHA256

            7b359c19be4dd1f4207b6af75a05daff1101ae68b81ac25589a4e5fff5c52563

            SHA512

            d2937e712b8f2969ceb1f45dead291d2cc9550b89b6b72af501a0b6eebcc2916083c497328e6f63782767e5fc6f53fff123e750bfeb52bd6ea15b0edf2a5f34d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2085e480ea0d4236a51ddc48a53a112f

            SHA1

            272c3f075fb8d1c6ad0ee899d8556661ae301257

            SHA256

            7b359c19be4dd1f4207b6af75a05daff1101ae68b81ac25589a4e5fff5c52563

            SHA512

            d2937e712b8f2969ceb1f45dead291d2cc9550b89b6b72af501a0b6eebcc2916083c497328e6f63782767e5fc6f53fff123e750bfeb52bd6ea15b0edf2a5f34d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b01d21cc97bf68e79d3737b715614014

            SHA1

            189044fbe1d34762caddb0730239b1ce87e56ceb

            SHA256

            67e8ee07de265cd65a4d179a5878fc03f15fd2907c38ae1e1f9e449d6a87cc5f

            SHA512

            1874a93fd305ae365df4a102941dd18c1f1f3a4ed994fd4fbe1c6c21e58ad845b4584d61347c33bd061eb631f72aa0f0518bffc271acec0685b9cb30a523c3b6

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b01d21cc97bf68e79d3737b715614014

            SHA1

            189044fbe1d34762caddb0730239b1ce87e56ceb

            SHA256

            67e8ee07de265cd65a4d179a5878fc03f15fd2907c38ae1e1f9e449d6a87cc5f

            SHA512

            1874a93fd305ae365df4a102941dd18c1f1f3a4ed994fd4fbe1c6c21e58ad845b4584d61347c33bd061eb631f72aa0f0518bffc271acec0685b9cb30a523c3b6

          • \Users\Admin\AppData\Local\Temp\nsiE36.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsiE36.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiE36.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiE36.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsiE36.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3838c8c4fed812577320bd0dda27119

            SHA1

            6a750369421984e589d3abb679ce553a8192aa74

            SHA256

            5052d92b25765fd11fe2c5d7dd85dc4ca52cef8803958466e2a7479c3526131e

            SHA512

            0843a3c9061ebe9cb362dc0d72f4979c311cd3a755d471acdc8807afe90b0f0afab8075ee636b08cd9f4b5b94e16b2f18282d43c4d40213fd1b299a705360261

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3838c8c4fed812577320bd0dda27119

            SHA1

            6a750369421984e589d3abb679ce553a8192aa74

            SHA256

            5052d92b25765fd11fe2c5d7dd85dc4ca52cef8803958466e2a7479c3526131e

            SHA512

            0843a3c9061ebe9cb362dc0d72f4979c311cd3a755d471acdc8807afe90b0f0afab8075ee636b08cd9f4b5b94e16b2f18282d43c4d40213fd1b299a705360261

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            a3838c8c4fed812577320bd0dda27119

            SHA1

            6a750369421984e589d3abb679ce553a8192aa74

            SHA256

            5052d92b25765fd11fe2c5d7dd85dc4ca52cef8803958466e2a7479c3526131e

            SHA512

            0843a3c9061ebe9cb362dc0d72f4979c311cd3a755d471acdc8807afe90b0f0afab8075ee636b08cd9f4b5b94e16b2f18282d43c4d40213fd1b299a705360261

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2b29d73981d78d67f93d580e92af9928

            SHA1

            d367eb9d0548272aca2c1fe967fea65511e98a51

            SHA256

            03219bab4b73cef5f63db7b005b3bfadbe449e8a2a88558ab5d474033190e9b9

            SHA512

            9e780fd5f45b88b3db2d831dad696aa66f22d3db38c26cf3e45f5ac138bd869e78086952646ebb1156d1d98ae0554579a477b5ccdbc25a174fdd9d2483ac0f29

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2b29d73981d78d67f93d580e92af9928

            SHA1

            d367eb9d0548272aca2c1fe967fea65511e98a51

            SHA256

            03219bab4b73cef5f63db7b005b3bfadbe449e8a2a88558ab5d474033190e9b9

            SHA512

            9e780fd5f45b88b3db2d831dad696aa66f22d3db38c26cf3e45f5ac138bd869e78086952646ebb1156d1d98ae0554579a477b5ccdbc25a174fdd9d2483ac0f29

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            e5c0dd5478ac09bedcf940be111586d8

            SHA1

            58b790f77c212913fad5b8ce1c8e565e8023ad3b

            SHA256

            578066829179bc45fd3e713ce8a00f51eee9bad5bcfaefcde892b276d8504f52

            SHA512

            f2331fc5a86c93a0b1870448c463bbe32b2bc97cc42631b8c4ed2c17b7ba456d3888ede4f3efc12f2eced86aa46d8bd54fbc53aaa704965420cf65eb1eb5dc78

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2085e480ea0d4236a51ddc48a53a112f

            SHA1

            272c3f075fb8d1c6ad0ee899d8556661ae301257

            SHA256

            7b359c19be4dd1f4207b6af75a05daff1101ae68b81ac25589a4e5fff5c52563

            SHA512

            d2937e712b8f2969ceb1f45dead291d2cc9550b89b6b72af501a0b6eebcc2916083c497328e6f63782767e5fc6f53fff123e750bfeb52bd6ea15b0edf2a5f34d

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b01d21cc97bf68e79d3737b715614014

            SHA1

            189044fbe1d34762caddb0730239b1ce87e56ceb

            SHA256

            67e8ee07de265cd65a4d179a5878fc03f15fd2907c38ae1e1f9e449d6a87cc5f

            SHA512

            1874a93fd305ae365df4a102941dd18c1f1f3a4ed994fd4fbe1c6c21e58ad845b4584d61347c33bd061eb631f72aa0f0518bffc271acec0685b9cb30a523c3b6

          • memory/560-61-0x0000000000000000-mapping.dmp

          • memory/756-64-0x0000000000000000-mapping.dmp

          • memory/892-58-0x0000000000000000-mapping.dmp

          • memory/1008-70-0x0000000000000000-mapping.dmp

          • memory/1188-76-0x0000000000000000-mapping.dmp

          • memory/1192-87-0x0000000000000000-mapping.dmp

          • memory/1312-86-0x0000000000000000-mapping.dmp

          • memory/1380-81-0x0000000000000000-mapping.dmp

          • memory/1488-80-0x0000000000000000-mapping.dmp

          • memory/1584-62-0x0000000000000000-mapping.dmp

          • memory/1616-59-0x0000000000000000-mapping.dmp

          • memory/1812-54-0x0000000076461000-0x0000000076463000-memory.dmp

            Filesize

            8KB

          • memory/1812-57-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1812-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB