Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:13

General

  • Target

    c49162da7007199d375f0bf40e5222bd8f3ce98e8bdafd1ce4218531d4de732e.exe

  • Size

    602KB

  • MD5

    ca7fdda21f2d6b9a11d0b9f0de1db1c5

  • SHA1

    9ae073e16c2fd15f5e03dec0db98819ad7ece1c5

  • SHA256

    c49162da7007199d375f0bf40e5222bd8f3ce98e8bdafd1ce4218531d4de732e

  • SHA512

    c9ab2e6302a07ca8b720b2190827187d0b19873db90417572dae93438cf9025d93083c035cd19db7dad0f535a3935dab749b0d5476141fa31ad36eb110d64fe6

  • SSDEEP

    12288:uIny5DYTfZM+/RPJu6iUnyQoaVWTA6pcl/nPTGc6kMogt:wUThMWtHiYyQy47Gc1Mom

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\c49162da7007199d375f0bf40e5222bd8f3ce98e8bdafd1ce4218531d4de732e.exe
    "C:\Users\Admin\AppData\Local\Temp\c49162da7007199d375f0bf40e5222bd8f3ce98e8bdafd1ce4218531d4de732e.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:4440
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1332
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4900
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3440
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:956
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1056
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1796
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1300
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1556
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:224
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3164
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3556
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:3720
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4044

          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:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsbF217.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            36f97de77d7383e43d2e63777e581928

            SHA1

            aa92b73e5e5e2785e6886b5346cd1b04be74b20b

            SHA256

            49f1c71f36182f515590ed928513bd789dab89bad298e185bdcc3be28066116b

            SHA512

            953a4a60106962ceaad43ec187ba6e45f09c67fe2fcbca9645d3ea64af4a811ae0a4dfa50fb2645d04e0d02137b6cd8d58c06102085d91d4ec307bf1e326fbf4

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

            106KB

            MD5

            36f97de77d7383e43d2e63777e581928

            SHA1

            aa92b73e5e5e2785e6886b5346cd1b04be74b20b

            SHA256

            49f1c71f36182f515590ed928513bd789dab89bad298e185bdcc3be28066116b

            SHA512

            953a4a60106962ceaad43ec187ba6e45f09c67fe2fcbca9645d3ea64af4a811ae0a4dfa50fb2645d04e0d02137b6cd8d58c06102085d91d4ec307bf1e326fbf4

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

            106KB

            MD5

            36f97de77d7383e43d2e63777e581928

            SHA1

            aa92b73e5e5e2785e6886b5346cd1b04be74b20b

            SHA256

            49f1c71f36182f515590ed928513bd789dab89bad298e185bdcc3be28066116b

            SHA512

            953a4a60106962ceaad43ec187ba6e45f09c67fe2fcbca9645d3ea64af4a811ae0a4dfa50fb2645d04e0d02137b6cd8d58c06102085d91d4ec307bf1e326fbf4

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

            106KB

            MD5

            36f97de77d7383e43d2e63777e581928

            SHA1

            aa92b73e5e5e2785e6886b5346cd1b04be74b20b

            SHA256

            49f1c71f36182f515590ed928513bd789dab89bad298e185bdcc3be28066116b

            SHA512

            953a4a60106962ceaad43ec187ba6e45f09c67fe2fcbca9645d3ea64af4a811ae0a4dfa50fb2645d04e0d02137b6cd8d58c06102085d91d4ec307bf1e326fbf4

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

            241KB

            MD5

            58739ec19c00b5979efeb0e0dabfd955

            SHA1

            73ac082ebb7f3b42ff4a2e6b3ff8c47eb3444252

            SHA256

            b068138c9843b158b7c0f98529c4598c86009ac9a369c53a9b191f8911337cf2

            SHA512

            329fd32daca3507e9a3a62158dd74e8d0c274802612620d1eb59c1faf2f2b2123f431b26f81282c16b2ee2190eae80c3a7b60a3c85b37bfa1d942aeccf57da56

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

            241KB

            MD5

            58739ec19c00b5979efeb0e0dabfd955

            SHA1

            73ac082ebb7f3b42ff4a2e6b3ff8c47eb3444252

            SHA256

            b068138c9843b158b7c0f98529c4598c86009ac9a369c53a9b191f8911337cf2

            SHA512

            329fd32daca3507e9a3a62158dd74e8d0c274802612620d1eb59c1faf2f2b2123f431b26f81282c16b2ee2190eae80c3a7b60a3c85b37bfa1d942aeccf57da56

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

            241KB

            MD5

            58739ec19c00b5979efeb0e0dabfd955

            SHA1

            73ac082ebb7f3b42ff4a2e6b3ff8c47eb3444252

            SHA256

            b068138c9843b158b7c0f98529c4598c86009ac9a369c53a9b191f8911337cf2

            SHA512

            329fd32daca3507e9a3a62158dd74e8d0c274802612620d1eb59c1faf2f2b2123f431b26f81282c16b2ee2190eae80c3a7b60a3c85b37bfa1d942aeccf57da56

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

            108KB

            MD5

            cada6489816ed5b44a538de4fd4462c5

            SHA1

            d962f633e1103413519a98e007092e68da60fdac

            SHA256

            5512d8bb982c767264b330bb95097e0de80d77f1cb354830718f9b2a40617ef0

            SHA512

            a87da617577553c7c7187679cfdfe1081e4cb9820decf55f48c8bc2a9128f0abef26b37a4fda0dc0be855db209df7175fb01a9bbad8393851ea2b831723d9ad9

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

            108KB

            MD5

            cada6489816ed5b44a538de4fd4462c5

            SHA1

            d962f633e1103413519a98e007092e68da60fdac

            SHA256

            5512d8bb982c767264b330bb95097e0de80d77f1cb354830718f9b2a40617ef0

            SHA512

            a87da617577553c7c7187679cfdfe1081e4cb9820decf55f48c8bc2a9128f0abef26b37a4fda0dc0be855db209df7175fb01a9bbad8393851ea2b831723d9ad9

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

            176KB

            MD5

            38298b92754c7225f13e88a7be7f2330

            SHA1

            8d43c14bd114e4064c8da7c40edeb2fa062a2e23

            SHA256

            ba3ab84d9af8fe86770d1dc44492eeabbdc5c49319a6c7d55950eb594273be66

            SHA512

            0e75240cd603bc2a0638d16214b35934aeb99a0c6ca58cc8211c9751e3c1a53e5e67fffb9f8250cea43f533b418bdb05bfd01efd316b7058c6a040fc91f345c8

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

            176KB

            MD5

            38298b92754c7225f13e88a7be7f2330

            SHA1

            8d43c14bd114e4064c8da7c40edeb2fa062a2e23

            SHA256

            ba3ab84d9af8fe86770d1dc44492eeabbdc5c49319a6c7d55950eb594273be66

            SHA512

            0e75240cd603bc2a0638d16214b35934aeb99a0c6ca58cc8211c9751e3c1a53e5e67fffb9f8250cea43f533b418bdb05bfd01efd316b7058c6a040fc91f345c8

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

            176KB

            MD5

            38298b92754c7225f13e88a7be7f2330

            SHA1

            8d43c14bd114e4064c8da7c40edeb2fa062a2e23

            SHA256

            ba3ab84d9af8fe86770d1dc44492eeabbdc5c49319a6c7d55950eb594273be66

            SHA512

            0e75240cd603bc2a0638d16214b35934aeb99a0c6ca58cc8211c9751e3c1a53e5e67fffb9f8250cea43f533b418bdb05bfd01efd316b7058c6a040fc91f345c8

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

            159KB

            MD5

            7b2bd50f3e56bdd47b54ffb4b453a0e7

            SHA1

            be6a921245b8cefef2d0f92d43563a78a35c1a35

            SHA256

            854358723e7d635561040b6b3903abc73a5fb808f9f30bbccdd40ef0a4fc2808

            SHA512

            6805270ab352e3cea432e0fe1b757ca4c6290e828d145619521f5dd84f02304e7e80f16ffc2a56e088d7c1d77a7b2a1d0e2ae6adb611c2ae31949138a6b804cc

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

            159KB

            MD5

            7b2bd50f3e56bdd47b54ffb4b453a0e7

            SHA1

            be6a921245b8cefef2d0f92d43563a78a35c1a35

            SHA256

            854358723e7d635561040b6b3903abc73a5fb808f9f30bbccdd40ef0a4fc2808

            SHA512

            6805270ab352e3cea432e0fe1b757ca4c6290e828d145619521f5dd84f02304e7e80f16ffc2a56e088d7c1d77a7b2a1d0e2ae6adb611c2ae31949138a6b804cc

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

            159KB

            MD5

            7b2bd50f3e56bdd47b54ffb4b453a0e7

            SHA1

            be6a921245b8cefef2d0f92d43563a78a35c1a35

            SHA256

            854358723e7d635561040b6b3903abc73a5fb808f9f30bbccdd40ef0a4fc2808

            SHA512

            6805270ab352e3cea432e0fe1b757ca4c6290e828d145619521f5dd84f02304e7e80f16ffc2a56e088d7c1d77a7b2a1d0e2ae6adb611c2ae31949138a6b804cc

          • memory/224-159-0x0000000000000000-mapping.dmp
          • memory/956-141-0x0000000000000000-mapping.dmp
          • memory/1056-142-0x0000000000000000-mapping.dmp
          • memory/1300-153-0x0000000000000000-mapping.dmp
          • memory/1332-136-0x0000000000000000-mapping.dmp
          • memory/1556-158-0x0000000000000000-mapping.dmp
          • memory/1796-147-0x0000000000000000-mapping.dmp
          • memory/3164-166-0x0000000000000000-mapping.dmp
          • memory/3440-140-0x0000000000000000-mapping.dmp
          • memory/3556-167-0x0000000000000000-mapping.dmp
          • memory/4440-163-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4440-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4440-169-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4900-137-0x0000000000000000-mapping.dmp