Analysis

  • max time kernel
    62s
  • max time network
    35s
  • 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

    6375fd940b70b2b8acfbc717842c27cee5d59cab3e471d6f0faa0e4b1face09a.exe

  • Size

    446KB

  • MD5

    ba573a7eb68a65726de1b77ae4f51b46

  • SHA1

    cba409b3774836fdb9217ce254070485d0a75e78

  • SHA256

    6375fd940b70b2b8acfbc717842c27cee5d59cab3e471d6f0faa0e4b1face09a

  • SHA512

    d25762efe9817ee809d7d8ab6f9d60f851ef35d1e8f173bc67987ac0da0bac1d0fc78636a6602fc74ef3c73bbc0fd19f5465f9595f6b56eaa71f012a67c7bfc2

  • SSDEEP

    12288:kc5sI5AyR8Z3ZtvOZmB8RNt2rCAA1fuVsRCY0:kc5f4ZJtW8B8Rf2rQJup

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\6375fd940b70b2b8acfbc717842c27cee5d59cab3e471d6f0faa0e4b1face09a.exe
    "C:\Users\Admin\AppData\Local\Temp\6375fd940b70b2b8acfbc717842c27cee5d59cab3e471d6f0faa0e4b1face09a.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:2012
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1148
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:572
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:788
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1488
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1020
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1932
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1524
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1620
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:964
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1852
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1664
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1408
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1752

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9ce6523460be6b9480caf83d9e418b1

            SHA1

            4c9814563e2c9d8d9d28e79b033924ca1073c83b

            SHA256

            dbd5ced3d17a277f09bc1b1095fc8cb4a4cad588697152673447367407e1adf4

            SHA512

            a54570847835050c3bfab6746e1b6299164af41ea589cb49ed0848e27f3bae4e2447b5568d3cfb796175bd533332eb8c2e81d3a204adc77d8a105345d936d5da

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2507424828669a878c7743fd903bfa49

            SHA1

            98fd33ad2d8c4ace0dd0ff732a008f300da09c04

            SHA256

            1cc13ebc5235a9d6c11d26c14ef797831dbe1aacde09bec651d3aef1b0670493

            SHA512

            7601da66130fe76434c34ce1b447816789d068336713a75add633a8abf1158a66ebb479a4dcf9878fe98c8869bce30c17358ef4503da7e16f9fc395539304e5f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            cce273f9a476e763284da6e106c8cb7d

            SHA1

            3a0e68aad9d04cbd12aeca2d64d846731b19eeb1

            SHA256

            37006453db3d2bd7c574e23b0732ad582264d68db5f77ccd0cc792ea93c324ec

            SHA512

            e114443988a73988ec1d8567332c0049f4c9c0d87dd441a045f58d7c5e96530f36878296c3b77487bbed244afeedec542d4fb2e1eab12686b6e3d8ecbdc5e04b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0ff8b380116398792da8344b3884f1ba

            SHA1

            e62aaed4cc7deeb3bdb6a5b2c5654d4f89655879

            SHA256

            cb72c8b875ec63f64ac946f1d856c9291927ef8e617b5a369ed2d7f61d78889d

            SHA512

            f0337b3223e49edfa16187feef30a5c600d48d04341076bd2128d34023619fc34af2f094a44cd00c9a8bfaa6f7b4216299af3ef941a5ef4156839978707b104b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0ff8b380116398792da8344b3884f1ba

            SHA1

            e62aaed4cc7deeb3bdb6a5b2c5654d4f89655879

            SHA256

            cb72c8b875ec63f64ac946f1d856c9291927ef8e617b5a369ed2d7f61d78889d

            SHA512

            f0337b3223e49edfa16187feef30a5c600d48d04341076bd2128d34023619fc34af2f094a44cd00c9a8bfaa6f7b4216299af3ef941a5ef4156839978707b104b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            975314a75a48e58f2df76570fbcd6330

            SHA1

            7defe89695afc1514926ea8b941f9d8f9d1b5615

            SHA256

            ace1d78a5f0664c2d3d62459df09ef682fae05ffff1e71d0ba4b5abd4aa78aa2

            SHA512

            b29244e909321b4c5f883c8179fe0db83e4ea2ae9d5ef9ee8d5d2d767287b06261a61c503bc91d909a9e9d486b845e34a9fcad7ee4e0d35b068353c63a7620a9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            975314a75a48e58f2df76570fbcd6330

            SHA1

            7defe89695afc1514926ea8b941f9d8f9d1b5615

            SHA256

            ace1d78a5f0664c2d3d62459df09ef682fae05ffff1e71d0ba4b5abd4aa78aa2

            SHA512

            b29244e909321b4c5f883c8179fe0db83e4ea2ae9d5ef9ee8d5d2d767287b06261a61c503bc91d909a9e9d486b845e34a9fcad7ee4e0d35b068353c63a7620a9

          • \Users\Admin\AppData\Local\Temp\nstCFA1.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstCFA1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstCFA1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstCFA1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstCFA1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9ce6523460be6b9480caf83d9e418b1

            SHA1

            4c9814563e2c9d8d9d28e79b033924ca1073c83b

            SHA256

            dbd5ced3d17a277f09bc1b1095fc8cb4a4cad588697152673447367407e1adf4

            SHA512

            a54570847835050c3bfab6746e1b6299164af41ea589cb49ed0848e27f3bae4e2447b5568d3cfb796175bd533332eb8c2e81d3a204adc77d8a105345d936d5da

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9ce6523460be6b9480caf83d9e418b1

            SHA1

            4c9814563e2c9d8d9d28e79b033924ca1073c83b

            SHA256

            dbd5ced3d17a277f09bc1b1095fc8cb4a4cad588697152673447367407e1adf4

            SHA512

            a54570847835050c3bfab6746e1b6299164af41ea589cb49ed0848e27f3bae4e2447b5568d3cfb796175bd533332eb8c2e81d3a204adc77d8a105345d936d5da

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9ce6523460be6b9480caf83d9e418b1

            SHA1

            4c9814563e2c9d8d9d28e79b033924ca1073c83b

            SHA256

            dbd5ced3d17a277f09bc1b1095fc8cb4a4cad588697152673447367407e1adf4

            SHA512

            a54570847835050c3bfab6746e1b6299164af41ea589cb49ed0848e27f3bae4e2447b5568d3cfb796175bd533332eb8c2e81d3a204adc77d8a105345d936d5da

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2507424828669a878c7743fd903bfa49

            SHA1

            98fd33ad2d8c4ace0dd0ff732a008f300da09c04

            SHA256

            1cc13ebc5235a9d6c11d26c14ef797831dbe1aacde09bec651d3aef1b0670493

            SHA512

            7601da66130fe76434c34ce1b447816789d068336713a75add633a8abf1158a66ebb479a4dcf9878fe98c8869bce30c17358ef4503da7e16f9fc395539304e5f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            2507424828669a878c7743fd903bfa49

            SHA1

            98fd33ad2d8c4ace0dd0ff732a008f300da09c04

            SHA256

            1cc13ebc5235a9d6c11d26c14ef797831dbe1aacde09bec651d3aef1b0670493

            SHA512

            7601da66130fe76434c34ce1b447816789d068336713a75add633a8abf1158a66ebb479a4dcf9878fe98c8869bce30c17358ef4503da7e16f9fc395539304e5f

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            cce273f9a476e763284da6e106c8cb7d

            SHA1

            3a0e68aad9d04cbd12aeca2d64d846731b19eeb1

            SHA256

            37006453db3d2bd7c574e23b0732ad582264d68db5f77ccd0cc792ea93c324ec

            SHA512

            e114443988a73988ec1d8567332c0049f4c9c0d87dd441a045f58d7c5e96530f36878296c3b77487bbed244afeedec542d4fb2e1eab12686b6e3d8ecbdc5e04b

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0ff8b380116398792da8344b3884f1ba

            SHA1

            e62aaed4cc7deeb3bdb6a5b2c5654d4f89655879

            SHA256

            cb72c8b875ec63f64ac946f1d856c9291927ef8e617b5a369ed2d7f61d78889d

            SHA512

            f0337b3223e49edfa16187feef30a5c600d48d04341076bd2128d34023619fc34af2f094a44cd00c9a8bfaa6f7b4216299af3ef941a5ef4156839978707b104b

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            975314a75a48e58f2df76570fbcd6330

            SHA1

            7defe89695afc1514926ea8b941f9d8f9d1b5615

            SHA256

            ace1d78a5f0664c2d3d62459df09ef682fae05ffff1e71d0ba4b5abd4aa78aa2

            SHA512

            b29244e909321b4c5f883c8179fe0db83e4ea2ae9d5ef9ee8d5d2d767287b06261a61c503bc91d909a9e9d486b845e34a9fcad7ee4e0d35b068353c63a7620a9

          • memory/572-58-0x0000000000000000-mapping.dmp

          • memory/788-60-0x0000000000000000-mapping.dmp

          • memory/964-80-0x0000000000000000-mapping.dmp

          • memory/1020-63-0x0000000000000000-mapping.dmp

          • memory/1148-57-0x0000000000000000-mapping.dmp

          • memory/1488-61-0x0000000000000000-mapping.dmp

          • memory/1524-75-0x0000000000000000-mapping.dmp

          • memory/1620-79-0x0000000000000000-mapping.dmp

          • memory/1664-86-0x0000000000000000-mapping.dmp

          • memory/1852-85-0x0000000000000000-mapping.dmp

          • memory/1932-69-0x0000000000000000-mapping.dmp

          • memory/2012-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

            Filesize

            8KB