Analysis

  • max time kernel
    101s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:07

General

  • Target

    f29cde2e406b26c52d157665a4c8b6b017d33dbf4c059d82e0ded4032117fbdb.exe

  • Size

    603KB

  • MD5

    1c4000377d5acd76676f3a8dd3f3537f

  • SHA1

    5a87ec447f51ae63b8ae4d21d807b8fd896e3009

  • SHA256

    f29cde2e406b26c52d157665a4c8b6b017d33dbf4c059d82e0ded4032117fbdb

  • SHA512

    5bc55b927b708adb5490e08920396843de701a5b5545697441c3dc3d63b14f812b9a2ebcccd87f3cd4c5d33511e75b4ced5f178be254ac9f60841575add1fbbf

  • SSDEEP

    12288:HIny5DYTJ7ifGGqCvy2ha0Txwj1d3v7Hw8zgs3P:PUTEu0r01i+

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\f29cde2e406b26c52d157665a4c8b6b017d33dbf4c059d82e0ded4032117fbdb.exe
    "C:\Users\Admin\AppData\Local\Temp\f29cde2e406b26c52d157665a4c8b6b017d33dbf4c059d82e0ded4032117fbdb.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:1052
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:472
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1148
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:268
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:320
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1532
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1044
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1236
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1636
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1360
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:892
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:240
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1972

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            62a158a5fb85013711e38db9a49cae20

            SHA1

            f161c35de1747235c5b95681a47f3488e5798862

            SHA256

            8f4763f319114f4ecee4cf5016f5e9d241a4bb4d690a5bf0d6f603667945c1d2

            SHA512

            1bb662800a73f1ebdd5031915bd9a1e0136725cc4aec83effa65d8443f939108a54e28f0c98c90c48dfd9d6f29800b2596606f2a83a713a8d2b6e1e74c71e883

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            78fe76a323b9f8a008c284cb255bddd5

            SHA1

            1466033ba1a18a6c820c0ede68e744971e969a13

            SHA256

            ab30e1a0372893fd0399fb38a7e18661417e40053595e414d31284709305d96a

            SHA512

            5bea823dfccae32aa902d8d1e039ae164fec57ab969879467b8012f37e0ce98fa1815113e2e59f173ff33384580cc28e4b6a811ec4907e15e8d726e04b9ba71f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            97a39c13052498dd83b1a96b142b5302

            SHA1

            650c032b2f220f11e8ad9883c0bbed837c9cc583

            SHA256

            d8d7ccd0b17cce11f8a3261293000886af957d8a5ff943c9243d890b61658db6

            SHA512

            21ca47c3409ef063123167b0dd1ba95c9d7f959659e2c9798e4d926801be6bfc87c213e2deb6c83668960ad91839dec18a14c1d7d63550dc7825af329c099022

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            358089ffdbc4f516ccb3d400bb61efd3

            SHA1

            70545a47f0651fe40f4ef60080f57f2ea5ce7e03

            SHA256

            6204ea97ed2a8e896e4014470d5fa9f7d6fe0118185c96858cb6605aa032dbdb

            SHA512

            a298745f8c4e471a16006d6401c287b72ccd0233185a5cb4af49141218592da4703e4725a812fca7fbd171f185dae126d6603e1d11d7cbe5eef2987a23cfa95f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            358089ffdbc4f516ccb3d400bb61efd3

            SHA1

            70545a47f0651fe40f4ef60080f57f2ea5ce7e03

            SHA256

            6204ea97ed2a8e896e4014470d5fa9f7d6fe0118185c96858cb6605aa032dbdb

            SHA512

            a298745f8c4e471a16006d6401c287b72ccd0233185a5cb4af49141218592da4703e4725a812fca7fbd171f185dae126d6603e1d11d7cbe5eef2987a23cfa95f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2975ce8a2eba293a7ded56a60b7b3a98

            SHA1

            594fc7534eef856b352ff42aed2d48bc83480468

            SHA256

            0dda72b64c7c90fde2f716f5d619481b6b3ee6fe7558dc60cb91d1ef285a1f6b

            SHA512

            ca10699d070a9d705003c9c6b27cceded50cfbc792e903b74205fe8af534f7847164b93ddf80fe287e3c8050b73843a88d66e0a6497076e3939df9c2f98cf637

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2975ce8a2eba293a7ded56a60b7b3a98

            SHA1

            594fc7534eef856b352ff42aed2d48bc83480468

            SHA256

            0dda72b64c7c90fde2f716f5d619481b6b3ee6fe7558dc60cb91d1ef285a1f6b

            SHA512

            ca10699d070a9d705003c9c6b27cceded50cfbc792e903b74205fe8af534f7847164b93ddf80fe287e3c8050b73843a88d66e0a6497076e3939df9c2f98cf637

          • \Users\Admin\AppData\Local\Temp\nseC278.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseC278.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseC278.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseC278.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseC278.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            62a158a5fb85013711e38db9a49cae20

            SHA1

            f161c35de1747235c5b95681a47f3488e5798862

            SHA256

            8f4763f319114f4ecee4cf5016f5e9d241a4bb4d690a5bf0d6f603667945c1d2

            SHA512

            1bb662800a73f1ebdd5031915bd9a1e0136725cc4aec83effa65d8443f939108a54e28f0c98c90c48dfd9d6f29800b2596606f2a83a713a8d2b6e1e74c71e883

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            62a158a5fb85013711e38db9a49cae20

            SHA1

            f161c35de1747235c5b95681a47f3488e5798862

            SHA256

            8f4763f319114f4ecee4cf5016f5e9d241a4bb4d690a5bf0d6f603667945c1d2

            SHA512

            1bb662800a73f1ebdd5031915bd9a1e0136725cc4aec83effa65d8443f939108a54e28f0c98c90c48dfd9d6f29800b2596606f2a83a713a8d2b6e1e74c71e883

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            62a158a5fb85013711e38db9a49cae20

            SHA1

            f161c35de1747235c5b95681a47f3488e5798862

            SHA256

            8f4763f319114f4ecee4cf5016f5e9d241a4bb4d690a5bf0d6f603667945c1d2

            SHA512

            1bb662800a73f1ebdd5031915bd9a1e0136725cc4aec83effa65d8443f939108a54e28f0c98c90c48dfd9d6f29800b2596606f2a83a713a8d2b6e1e74c71e883

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            78fe76a323b9f8a008c284cb255bddd5

            SHA1

            1466033ba1a18a6c820c0ede68e744971e969a13

            SHA256

            ab30e1a0372893fd0399fb38a7e18661417e40053595e414d31284709305d96a

            SHA512

            5bea823dfccae32aa902d8d1e039ae164fec57ab969879467b8012f37e0ce98fa1815113e2e59f173ff33384580cc28e4b6a811ec4907e15e8d726e04b9ba71f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            78fe76a323b9f8a008c284cb255bddd5

            SHA1

            1466033ba1a18a6c820c0ede68e744971e969a13

            SHA256

            ab30e1a0372893fd0399fb38a7e18661417e40053595e414d31284709305d96a

            SHA512

            5bea823dfccae32aa902d8d1e039ae164fec57ab969879467b8012f37e0ce98fa1815113e2e59f173ff33384580cc28e4b6a811ec4907e15e8d726e04b9ba71f

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            97a39c13052498dd83b1a96b142b5302

            SHA1

            650c032b2f220f11e8ad9883c0bbed837c9cc583

            SHA256

            d8d7ccd0b17cce11f8a3261293000886af957d8a5ff943c9243d890b61658db6

            SHA512

            21ca47c3409ef063123167b0dd1ba95c9d7f959659e2c9798e4d926801be6bfc87c213e2deb6c83668960ad91839dec18a14c1d7d63550dc7825af329c099022

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            358089ffdbc4f516ccb3d400bb61efd3

            SHA1

            70545a47f0651fe40f4ef60080f57f2ea5ce7e03

            SHA256

            6204ea97ed2a8e896e4014470d5fa9f7d6fe0118185c96858cb6605aa032dbdb

            SHA512

            a298745f8c4e471a16006d6401c287b72ccd0233185a5cb4af49141218592da4703e4725a812fca7fbd171f185dae126d6603e1d11d7cbe5eef2987a23cfa95f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            2975ce8a2eba293a7ded56a60b7b3a98

            SHA1

            594fc7534eef856b352ff42aed2d48bc83480468

            SHA256

            0dda72b64c7c90fde2f716f5d619481b6b3ee6fe7558dc60cb91d1ef285a1f6b

            SHA512

            ca10699d070a9d705003c9c6b27cceded50cfbc792e903b74205fe8af534f7847164b93ddf80fe287e3c8050b73843a88d66e0a6497076e3939df9c2f98cf637

          • memory/268-61-0x0000000000000000-mapping.dmp

          • memory/320-64-0x0000000000000000-mapping.dmp

          • memory/472-58-0x0000000000000000-mapping.dmp

          • memory/892-88-0x0000000000000000-mapping.dmp

          • memory/1044-77-0x0000000000000000-mapping.dmp

          • memory/1052-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1052-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1052-54-0x0000000075291000-0x0000000075293000-memory.dmp

            Filesize

            8KB

          • memory/1052-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1148-60-0x0000000000000000-mapping.dmp

          • memory/1236-81-0x0000000000000000-mapping.dmp

          • memory/1360-87-0x0000000000000000-mapping.dmp

          • memory/1532-70-0x0000000000000000-mapping.dmp

          • memory/1636-82-0x0000000000000000-mapping.dmp

          • memory/1704-57-0x0000000000000000-mapping.dmp