Analysis

  • max time kernel
    101s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:56

General

  • Target

    5d4195f9a08722b4ed8c76db4f7f0f32dff5e4127dcd51f4fd95ebce2ae179e0.exe

  • Size

    445KB

  • MD5

    9a2dd36aad8d7c3e16860f2293c59701

  • SHA1

    9b15e808a1366cb6bea167becc87a21aa0e1b88c

  • SHA256

    5d4195f9a08722b4ed8c76db4f7f0f32dff5e4127dcd51f4fd95ebce2ae179e0

  • SHA512

    cc53203d05fa7dfe79f3e3ff3c2455de39b12c8f0414dec08a5a5c4a21cfd8b28e0a1f53cfd6569a327874b9d6ae05201aba18a757e3f14b300050e5c5dbf2e7

  • SSDEEP

    6144:XzfsrGw7u32knajZgbfAMsKus5CPEfsOdhjz3X4MNF/iytXa1rL5pCntThelya6G:QrGwSnsyfLxu6sW13/NF9BKytTh4N6G

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\5d4195f9a08722b4ed8c76db4f7f0f32dff5e4127dcd51f4fd95ebce2ae179e0.exe
    "C:\Users\Admin\AppData\Local\Temp\5d4195f9a08722b4ed8c76db4f7f0f32dff5e4127dcd51f4fd95ebce2ae179e0.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:1312
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:900
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1504
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1056
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1876
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1524
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:996
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1956
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:280
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2032
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1820
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1724
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1416

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            da635241af08423991c8c67f739d43ef

            SHA1

            3a45ee57753b9059dd2b14703ed8abbca2a97521

            SHA256

            cc0f8864a275d42e1cdb7930d0bf1a5b2d9ef41e9ffc5a221925f765d177f7e4

            SHA512

            618a9bb57f8d6c3c821d8db19990d4d74cf1116180c98e720a466aba86de8faed2afdda78f8bef05140f1e545e9faa239c3adecaedb36f8e6409e11a9053ea39

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            1864bbbdaf5ce4ae3750da7bed68a166

            SHA1

            31a95fcbc9718f3b317edcbea774b6006fb05cfd

            SHA256

            d455c91a166d5069c58236d8737f2ebe74eadf3e419551cd1d1d37760238ec37

            SHA512

            e039d5c47312c47e1a297e2436c5fa0320711d7226cbd0ef79469d4d0440e52a0c5c23c467f291e49d9c966cfe57fbebe308c3cbaab66a0af731b1e4d9b9dc44

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            dca377cfcdbab28e2862570bc37704fb

            SHA1

            4485d8229c5b3700d546d32b973d3aeee3023f4e

            SHA256

            2565db3bcc959c3aa2020e616bf9bed0d197c282ab475aae6bc49739ea669643

            SHA512

            dd5cb566960513dcea00e7dceb3b6bf16e4711e177fcf99541cf1637a03566ad3f4b01c791b95819371a6800aabba6b1161d9a35a004d21e355bcc1b32afdf1a

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            6a7751a41c2d8dedbced81ad6cab3464

            SHA1

            292e5a1b34b841d381d913c3070f636873cf9a53

            SHA256

            d8165a97df2e8daef88deecec7a8a8203d671a78cc1f27307203f16f9278e962

            SHA512

            7674b765148229f31141b6e7e10217e1e0cdc049855b8cbcdd8cc658fb7a93b9db381547a61bc6f07988b9620c3156dff49499fae8736762f8f0d9341da1f876

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            6a7751a41c2d8dedbced81ad6cab3464

            SHA1

            292e5a1b34b841d381d913c3070f636873cf9a53

            SHA256

            d8165a97df2e8daef88deecec7a8a8203d671a78cc1f27307203f16f9278e962

            SHA512

            7674b765148229f31141b6e7e10217e1e0cdc049855b8cbcdd8cc658fb7a93b9db381547a61bc6f07988b9620c3156dff49499fae8736762f8f0d9341da1f876

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            57e64427686bff1d4116725173bb49ae

            SHA1

            876a0560584b3c6675b6dc100904444040ddef69

            SHA256

            b4cdb1c2a79bc2706cc87bf99cc93ec9272dd1185d9d60edd45f63890361be2c

            SHA512

            73fd0481dbad5e6ddf57cbe6c00e0a84b3ca6959c32e844c2dc6e6a2e98e426c41ed1796f58a93f4bd147739361e3512e3666ddccc676697b1a10443fe5fc359

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            57e64427686bff1d4116725173bb49ae

            SHA1

            876a0560584b3c6675b6dc100904444040ddef69

            SHA256

            b4cdb1c2a79bc2706cc87bf99cc93ec9272dd1185d9d60edd45f63890361be2c

            SHA512

            73fd0481dbad5e6ddf57cbe6c00e0a84b3ca6959c32e844c2dc6e6a2e98e426c41ed1796f58a93f4bd147739361e3512e3666ddccc676697b1a10443fe5fc359

          • \Users\Admin\AppData\Local\Temp\nstC89F.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstC89F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC89F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC89F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC89F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            da635241af08423991c8c67f739d43ef

            SHA1

            3a45ee57753b9059dd2b14703ed8abbca2a97521

            SHA256

            cc0f8864a275d42e1cdb7930d0bf1a5b2d9ef41e9ffc5a221925f765d177f7e4

            SHA512

            618a9bb57f8d6c3c821d8db19990d4d74cf1116180c98e720a466aba86de8faed2afdda78f8bef05140f1e545e9faa239c3adecaedb36f8e6409e11a9053ea39

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            da635241af08423991c8c67f739d43ef

            SHA1

            3a45ee57753b9059dd2b14703ed8abbca2a97521

            SHA256

            cc0f8864a275d42e1cdb7930d0bf1a5b2d9ef41e9ffc5a221925f765d177f7e4

            SHA512

            618a9bb57f8d6c3c821d8db19990d4d74cf1116180c98e720a466aba86de8faed2afdda78f8bef05140f1e545e9faa239c3adecaedb36f8e6409e11a9053ea39

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            da635241af08423991c8c67f739d43ef

            SHA1

            3a45ee57753b9059dd2b14703ed8abbca2a97521

            SHA256

            cc0f8864a275d42e1cdb7930d0bf1a5b2d9ef41e9ffc5a221925f765d177f7e4

            SHA512

            618a9bb57f8d6c3c821d8db19990d4d74cf1116180c98e720a466aba86de8faed2afdda78f8bef05140f1e545e9faa239c3adecaedb36f8e6409e11a9053ea39

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            1864bbbdaf5ce4ae3750da7bed68a166

            SHA1

            31a95fcbc9718f3b317edcbea774b6006fb05cfd

            SHA256

            d455c91a166d5069c58236d8737f2ebe74eadf3e419551cd1d1d37760238ec37

            SHA512

            e039d5c47312c47e1a297e2436c5fa0320711d7226cbd0ef79469d4d0440e52a0c5c23c467f291e49d9c966cfe57fbebe308c3cbaab66a0af731b1e4d9b9dc44

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            1864bbbdaf5ce4ae3750da7bed68a166

            SHA1

            31a95fcbc9718f3b317edcbea774b6006fb05cfd

            SHA256

            d455c91a166d5069c58236d8737f2ebe74eadf3e419551cd1d1d37760238ec37

            SHA512

            e039d5c47312c47e1a297e2436c5fa0320711d7226cbd0ef79469d4d0440e52a0c5c23c467f291e49d9c966cfe57fbebe308c3cbaab66a0af731b1e4d9b9dc44

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            dca377cfcdbab28e2862570bc37704fb

            SHA1

            4485d8229c5b3700d546d32b973d3aeee3023f4e

            SHA256

            2565db3bcc959c3aa2020e616bf9bed0d197c282ab475aae6bc49739ea669643

            SHA512

            dd5cb566960513dcea00e7dceb3b6bf16e4711e177fcf99541cf1637a03566ad3f4b01c791b95819371a6800aabba6b1161d9a35a004d21e355bcc1b32afdf1a

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            6a7751a41c2d8dedbced81ad6cab3464

            SHA1

            292e5a1b34b841d381d913c3070f636873cf9a53

            SHA256

            d8165a97df2e8daef88deecec7a8a8203d671a78cc1f27307203f16f9278e962

            SHA512

            7674b765148229f31141b6e7e10217e1e0cdc049855b8cbcdd8cc658fb7a93b9db381547a61bc6f07988b9620c3156dff49499fae8736762f8f0d9341da1f876

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            57e64427686bff1d4116725173bb49ae

            SHA1

            876a0560584b3c6675b6dc100904444040ddef69

            SHA256

            b4cdb1c2a79bc2706cc87bf99cc93ec9272dd1185d9d60edd45f63890361be2c

            SHA512

            73fd0481dbad5e6ddf57cbe6c00e0a84b3ca6959c32e844c2dc6e6a2e98e426c41ed1796f58a93f4bd147739361e3512e3666ddccc676697b1a10443fe5fc359

          • memory/280-80-0x0000000000000000-mapping.dmp
          • memory/900-57-0x0000000000000000-mapping.dmp
          • memory/996-69-0x0000000000000000-mapping.dmp
          • memory/1056-60-0x0000000000000000-mapping.dmp
          • memory/1312-54-0x0000000075761000-0x0000000075763000-memory.dmp
            Filesize

            8KB

          • memory/1504-58-0x0000000000000000-mapping.dmp
          • memory/1524-63-0x0000000000000000-mapping.dmp
          • memory/1756-79-0x0000000000000000-mapping.dmp
          • memory/1820-86-0x0000000000000000-mapping.dmp
          • memory/1876-61-0x0000000000000000-mapping.dmp
          • memory/1956-75-0x0000000000000000-mapping.dmp
          • memory/2032-85-0x0000000000000000-mapping.dmp