Analysis

  • max time kernel
    23s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:54

General

  • Target

    9ae87f44819aa1e6ab8472906ffa5151a29919d3dcf3bfc54d929198fe2e83fd.exe

  • Size

    445KB

  • MD5

    864584d63f89baa4a257969984c8bd82

  • SHA1

    50959ed78829c6a3dc5807d6d1dfd22e4ee0c585

  • SHA256

    9ae87f44819aa1e6ab8472906ffa5151a29919d3dcf3bfc54d929198fe2e83fd

  • SHA512

    7fabcd752d44266713f96ffa1381c6890f3f5a6590277a58a84dd44ad787dd7423b19453978326236f6652e2ffc0a90c66e0d0a2c162c82f6356a073b7b10c23

  • SSDEEP

    12288:o6yf2rHPisJBbk6JcciZVo80o0Mnzxo1Q5+joFM:omrHnY6JpPMF+joW

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\9ae87f44819aa1e6ab8472906ffa5151a29919d3dcf3bfc54d929198fe2e83fd.exe
    "C:\Users\Admin\AppData\Local\Temp\9ae87f44819aa1e6ab8472906ffa5151a29919d3dcf3bfc54d929198fe2e83fd.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:1072
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1168
      • 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:1760
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1388
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1748
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1616
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1016
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1372
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1468
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2044
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1100
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:472
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1464

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f38541cf009f040821f37e1b3b58180

            SHA1

            cadf2c70f14853d8c653f1ea06a288087c1f2ff9

            SHA256

            9d985ce65a3c65d44e7ef3c8ef21712337c155ef0726a8c8fc7cc4da5a6c6ab6

            SHA512

            406535b49d5cb057af8552db49813a24b47e29275a86fadde01e166d57dc7d5af5410c515e8a3f52d9ee9b9d528bc66c60c45e1ef0ffbcc74569dad4e49431e0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7eb19a98fb7059b498e065af7fefde0c

            SHA1

            8253c37f9fcf13971a1e1f4a1e282a044d9dfff5

            SHA256

            a209d4664a9cf4634cfb4dd190254d2897e0bf3f34cab0328e2176ef029fa041

            SHA512

            c39818cc4f645de46b3c2f9cf98c6fa4ba73d769a9040b8a0f4bef301c195b01ffff00d5ca36b0a66f84747e90afe86a6cef0b2317f08838e9cfb25e9f3d34e5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2a43e0cd97a52a17e0e057ce619398c1

            SHA1

            aac909ed8c4eff8bc3c94c87a8383277fc0c0356

            SHA256

            74342bfe3a3be9a187f221bca29a89ea6f8c21df1312778d236514eac746ac0e

            SHA512

            e061dfa6e49a596dfe4320ba1543f9401afe79dfc95eccce920eb783bc0daf0b9808cd55e18eac178919027ef9e53cbd30341deb7692d3c8d79e546ea504995e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            aa564c079af35144b6b9a9590dba00df

            SHA1

            b510b3f81cf94c84ce3968fc94afb4a57056d380

            SHA256

            68ca87412fdc7fa98f35e4306eb75564d3198250ebc405a4a35f0de3e6d5691e

            SHA512

            63045c6a41eb3973414e781eb1e8aad3598a37eb9c0bc38caf329ddc8d86867e2b9af144f0f67cc6e58badb96a6c4dcbfa8da8f894682392721f5034df578766

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            aa564c079af35144b6b9a9590dba00df

            SHA1

            b510b3f81cf94c84ce3968fc94afb4a57056d380

            SHA256

            68ca87412fdc7fa98f35e4306eb75564d3198250ebc405a4a35f0de3e6d5691e

            SHA512

            63045c6a41eb3973414e781eb1e8aad3598a37eb9c0bc38caf329ddc8d86867e2b9af144f0f67cc6e58badb96a6c4dcbfa8da8f894682392721f5034df578766

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ad4050aa61ac1b3ffe4c453d734031a3

            SHA1

            58c2e652b19ffac425a6f8be3d8911a9cac8c80f

            SHA256

            7b289ac7187da0a0e0a27dcb01e68b77511597e42ca48ca7804350030bf8adb3

            SHA512

            3532c474541ac4dfe46804af69c2c2fd361716a30843f4bb16851cf43103ec1a1a6d8fa302ff9a78821a3824a9bc60a80e765538cfaf95619c0edbf86012693f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ad4050aa61ac1b3ffe4c453d734031a3

            SHA1

            58c2e652b19ffac425a6f8be3d8911a9cac8c80f

            SHA256

            7b289ac7187da0a0e0a27dcb01e68b77511597e42ca48ca7804350030bf8adb3

            SHA512

            3532c474541ac4dfe46804af69c2c2fd361716a30843f4bb16851cf43103ec1a1a6d8fa302ff9a78821a3824a9bc60a80e765538cfaf95619c0edbf86012693f

          • \Users\Admin\AppData\Local\Temp\nsj5AFF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj5AFF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj5AFF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj5AFF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj5AFF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f38541cf009f040821f37e1b3b58180

            SHA1

            cadf2c70f14853d8c653f1ea06a288087c1f2ff9

            SHA256

            9d985ce65a3c65d44e7ef3c8ef21712337c155ef0726a8c8fc7cc4da5a6c6ab6

            SHA512

            406535b49d5cb057af8552db49813a24b47e29275a86fadde01e166d57dc7d5af5410c515e8a3f52d9ee9b9d528bc66c60c45e1ef0ffbcc74569dad4e49431e0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f38541cf009f040821f37e1b3b58180

            SHA1

            cadf2c70f14853d8c653f1ea06a288087c1f2ff9

            SHA256

            9d985ce65a3c65d44e7ef3c8ef21712337c155ef0726a8c8fc7cc4da5a6c6ab6

            SHA512

            406535b49d5cb057af8552db49813a24b47e29275a86fadde01e166d57dc7d5af5410c515e8a3f52d9ee9b9d528bc66c60c45e1ef0ffbcc74569dad4e49431e0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7f38541cf009f040821f37e1b3b58180

            SHA1

            cadf2c70f14853d8c653f1ea06a288087c1f2ff9

            SHA256

            9d985ce65a3c65d44e7ef3c8ef21712337c155ef0726a8c8fc7cc4da5a6c6ab6

            SHA512

            406535b49d5cb057af8552db49813a24b47e29275a86fadde01e166d57dc7d5af5410c515e8a3f52d9ee9b9d528bc66c60c45e1ef0ffbcc74569dad4e49431e0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7eb19a98fb7059b498e065af7fefde0c

            SHA1

            8253c37f9fcf13971a1e1f4a1e282a044d9dfff5

            SHA256

            a209d4664a9cf4634cfb4dd190254d2897e0bf3f34cab0328e2176ef029fa041

            SHA512

            c39818cc4f645de46b3c2f9cf98c6fa4ba73d769a9040b8a0f4bef301c195b01ffff00d5ca36b0a66f84747e90afe86a6cef0b2317f08838e9cfb25e9f3d34e5

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7eb19a98fb7059b498e065af7fefde0c

            SHA1

            8253c37f9fcf13971a1e1f4a1e282a044d9dfff5

            SHA256

            a209d4664a9cf4634cfb4dd190254d2897e0bf3f34cab0328e2176ef029fa041

            SHA512

            c39818cc4f645de46b3c2f9cf98c6fa4ba73d769a9040b8a0f4bef301c195b01ffff00d5ca36b0a66f84747e90afe86a6cef0b2317f08838e9cfb25e9f3d34e5

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2a43e0cd97a52a17e0e057ce619398c1

            SHA1

            aac909ed8c4eff8bc3c94c87a8383277fc0c0356

            SHA256

            74342bfe3a3be9a187f221bca29a89ea6f8c21df1312778d236514eac746ac0e

            SHA512

            e061dfa6e49a596dfe4320ba1543f9401afe79dfc95eccce920eb783bc0daf0b9808cd55e18eac178919027ef9e53cbd30341deb7692d3c8d79e546ea504995e

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            aa564c079af35144b6b9a9590dba00df

            SHA1

            b510b3f81cf94c84ce3968fc94afb4a57056d380

            SHA256

            68ca87412fdc7fa98f35e4306eb75564d3198250ebc405a4a35f0de3e6d5691e

            SHA512

            63045c6a41eb3973414e781eb1e8aad3598a37eb9c0bc38caf329ddc8d86867e2b9af144f0f67cc6e58badb96a6c4dcbfa8da8f894682392721f5034df578766

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            ad4050aa61ac1b3ffe4c453d734031a3

            SHA1

            58c2e652b19ffac425a6f8be3d8911a9cac8c80f

            SHA256

            7b289ac7187da0a0e0a27dcb01e68b77511597e42ca48ca7804350030bf8adb3

            SHA512

            3532c474541ac4dfe46804af69c2c2fd361716a30843f4bb16851cf43103ec1a1a6d8fa302ff9a78821a3824a9bc60a80e765538cfaf95619c0edbf86012693f

          • memory/1016-75-0x0000000000000000-mapping.dmp

          • memory/1072-54-0x0000000075A81000-0x0000000075A83000-memory.dmp

            Filesize

            8KB

          • memory/1100-86-0x0000000000000000-mapping.dmp

          • memory/1168-57-0x0000000000000000-mapping.dmp

          • memory/1372-79-0x0000000000000000-mapping.dmp

          • memory/1388-61-0x0000000000000000-mapping.dmp

          • memory/1468-80-0x0000000000000000-mapping.dmp

          • memory/1504-58-0x0000000000000000-mapping.dmp

          • memory/1616-69-0x0000000000000000-mapping.dmp

          • memory/1748-63-0x0000000000000000-mapping.dmp

          • memory/1760-60-0x0000000000000000-mapping.dmp

          • memory/2044-85-0x0000000000000000-mapping.dmp