Analysis

  • max time kernel
    80s
  • max time network
    143s
  • 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 10:23

General

  • Target

    72cb624c0e310bee6e0b86059ee897524a1949f0a6e20b0cf5bead7efc32df87.exe

  • Size

    602KB

  • MD5

    532908544bab13545de8fc6985329441

  • SHA1

    65f935928bb881c5caa52b8b0bfa6896c327e65a

  • SHA256

    72cb624c0e310bee6e0b86059ee897524a1949f0a6e20b0cf5bead7efc32df87

  • SHA512

    0903ec02ede176c7dcf2d7457d936ba005b1816b11c690e1edbe3cb5f004a174fd8d50775301e070e1f6be9ab6fa279d30c977016cb176856bc451b3bfececad

  • SSDEEP

    12288:VIny5DYTcILlKhVg5lkDmfuK25Rty7vaOKnHVllwJkx:hUTc8x5l1B2ty7fGx

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\72cb624c0e310bee6e0b86059ee897524a1949f0a6e20b0cf5bead7efc32df87.exe
    "C:\Users\Admin\AppData\Local\Temp\72cb624c0e310bee6e0b86059ee897524a1949f0a6e20b0cf5bead7efc32df87.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:2440
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1412
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5104
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4588
        • 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:1952
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1804
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:116
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4284
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3260
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1444
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1612
          • 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:4496
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3528

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsxF41B.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46bc50ab19e11d68f185bb1997b5d87f

            SHA1

            22315e12d18e873a345c9e9eb0f2399048c27722

            SHA256

            72872e85e1c917656c0dec1a6d631c99c503ae4476ec0152f630b61ed7a11a34

            SHA512

            2f0de1085b1ba464aebce785d1014ccf79ea29ee2191186edeb53e879e13ad5feafb598e413e9325410a04e5f4f8dd777549e890ab7b09fc36bebecd2888f3f4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46bc50ab19e11d68f185bb1997b5d87f

            SHA1

            22315e12d18e873a345c9e9eb0f2399048c27722

            SHA256

            72872e85e1c917656c0dec1a6d631c99c503ae4476ec0152f630b61ed7a11a34

            SHA512

            2f0de1085b1ba464aebce785d1014ccf79ea29ee2191186edeb53e879e13ad5feafb598e413e9325410a04e5f4f8dd777549e890ab7b09fc36bebecd2888f3f4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46bc50ab19e11d68f185bb1997b5d87f

            SHA1

            22315e12d18e873a345c9e9eb0f2399048c27722

            SHA256

            72872e85e1c917656c0dec1a6d631c99c503ae4476ec0152f630b61ed7a11a34

            SHA512

            2f0de1085b1ba464aebce785d1014ccf79ea29ee2191186edeb53e879e13ad5feafb598e413e9325410a04e5f4f8dd777549e890ab7b09fc36bebecd2888f3f4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            46bc50ab19e11d68f185bb1997b5d87f

            SHA1

            22315e12d18e873a345c9e9eb0f2399048c27722

            SHA256

            72872e85e1c917656c0dec1a6d631c99c503ae4476ec0152f630b61ed7a11a34

            SHA512

            2f0de1085b1ba464aebce785d1014ccf79ea29ee2191186edeb53e879e13ad5feafb598e413e9325410a04e5f4f8dd777549e890ab7b09fc36bebecd2888f3f4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9706fa01022976f2e14b5b0e7a104a1d

            SHA1

            25d8343b509cbd77668b41fc131541ea6f1a3afc

            SHA256

            3ba5740725dabf35084cb70fb8933e0e66481a1015ad84c8d80b21460a64a9ce

            SHA512

            ad160001fee856ca9b9a5b4e8a97f0710dc2c6862a882068e4306a9ab6d31673485031698125181b38e1c03e50c391bc749b63c978fd0167e78ae3e08de0c953

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9706fa01022976f2e14b5b0e7a104a1d

            SHA1

            25d8343b509cbd77668b41fc131541ea6f1a3afc

            SHA256

            3ba5740725dabf35084cb70fb8933e0e66481a1015ad84c8d80b21460a64a9ce

            SHA512

            ad160001fee856ca9b9a5b4e8a97f0710dc2c6862a882068e4306a9ab6d31673485031698125181b38e1c03e50c391bc749b63c978fd0167e78ae3e08de0c953

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            9706fa01022976f2e14b5b0e7a104a1d

            SHA1

            25d8343b509cbd77668b41fc131541ea6f1a3afc

            SHA256

            3ba5740725dabf35084cb70fb8933e0e66481a1015ad84c8d80b21460a64a9ce

            SHA512

            ad160001fee856ca9b9a5b4e8a97f0710dc2c6862a882068e4306a9ab6d31673485031698125181b38e1c03e50c391bc749b63c978fd0167e78ae3e08de0c953

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4afc8953dcbb728906773bf34153ab25

            SHA1

            f0f1f84d213bac2d5f226a9ae6290b6b800992ce

            SHA256

            cf0d6cbfe77b0598c91c07b3818a5bb489a4cd43d0062635cec1f2c64a973980

            SHA512

            868e484dbad9e258f34d097c2cbe929f27e7fd66bd7f1d44f2f2c0db48ce6964272c28b15b87e9f7aa6a8d1b67d121669b0457f3465d29e7a2d8f7b396cb41c2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4afc8953dcbb728906773bf34153ab25

            SHA1

            f0f1f84d213bac2d5f226a9ae6290b6b800992ce

            SHA256

            cf0d6cbfe77b0598c91c07b3818a5bb489a4cd43d0062635cec1f2c64a973980

            SHA512

            868e484dbad9e258f34d097c2cbe929f27e7fd66bd7f1d44f2f2c0db48ce6964272c28b15b87e9f7aa6a8d1b67d121669b0457f3465d29e7a2d8f7b396cb41c2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            28adc41b31190a744845a739a02e5b84

            SHA1

            0006cc5c15aa168f03202258ea8b5981fa77e826

            SHA256

            3923e8e308d8a4ed88f22fe243ef66dbb46ea8b7e670ce10a3cc938819ad4b65

            SHA512

            b535e2e5d1df806e43d2d3a009216f3cfa396d656f9e7a996cf784f0dd150cd16e3d4fa3980517305fb93da735fe6ae1c18b36850cf3148ba00bdbe8a535ff73

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            28adc41b31190a744845a739a02e5b84

            SHA1

            0006cc5c15aa168f03202258ea8b5981fa77e826

            SHA256

            3923e8e308d8a4ed88f22fe243ef66dbb46ea8b7e670ce10a3cc938819ad4b65

            SHA512

            b535e2e5d1df806e43d2d3a009216f3cfa396d656f9e7a996cf784f0dd150cd16e3d4fa3980517305fb93da735fe6ae1c18b36850cf3148ba00bdbe8a535ff73

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            28adc41b31190a744845a739a02e5b84

            SHA1

            0006cc5c15aa168f03202258ea8b5981fa77e826

            SHA256

            3923e8e308d8a4ed88f22fe243ef66dbb46ea8b7e670ce10a3cc938819ad4b65

            SHA512

            b535e2e5d1df806e43d2d3a009216f3cfa396d656f9e7a996cf784f0dd150cd16e3d4fa3980517305fb93da735fe6ae1c18b36850cf3148ba00bdbe8a535ff73

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            246dcdf2bfe01f8d3c232cd39a71f278

            SHA1

            cb507f23a3bf78423406fcb2fa6eb069226d6817

            SHA256

            58c0be2b5f15e9ddf4b5ec8990c9283d10b2d9c9efba9945647503d9e06b64c9

            SHA512

            2ca53b72130a85020fc9e72a4865004703aea3f41dc78c2a8d368a559ea4ec39bcdc904c61490612232934b490f466bffcf3e6197e3162a7df397a766ef979c5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            246dcdf2bfe01f8d3c232cd39a71f278

            SHA1

            cb507f23a3bf78423406fcb2fa6eb069226d6817

            SHA256

            58c0be2b5f15e9ddf4b5ec8990c9283d10b2d9c9efba9945647503d9e06b64c9

            SHA512

            2ca53b72130a85020fc9e72a4865004703aea3f41dc78c2a8d368a559ea4ec39bcdc904c61490612232934b490f466bffcf3e6197e3162a7df397a766ef979c5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            246dcdf2bfe01f8d3c232cd39a71f278

            SHA1

            cb507f23a3bf78423406fcb2fa6eb069226d6817

            SHA256

            58c0be2b5f15e9ddf4b5ec8990c9283d10b2d9c9efba9945647503d9e06b64c9

            SHA512

            2ca53b72130a85020fc9e72a4865004703aea3f41dc78c2a8d368a559ea4ec39bcdc904c61490612232934b490f466bffcf3e6197e3162a7df397a766ef979c5

          • memory/116-153-0x0000000000000000-mapping.dmp

          • memory/1412-136-0x0000000000000000-mapping.dmp

          • memory/1444-165-0x0000000000000000-mapping.dmp

          • memory/1612-166-0x0000000000000000-mapping.dmp

          • memory/1804-147-0x0000000000000000-mapping.dmp

          • memory/1876-141-0x0000000000000000-mapping.dmp

          • memory/1952-142-0x0000000000000000-mapping.dmp

          • memory/2440-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2440-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3260-159-0x0000000000000000-mapping.dmp

          • memory/4284-158-0x0000000000000000-mapping.dmp

          • memory/4588-140-0x0000000000000000-mapping.dmp

          • memory/5104-137-0x0000000000000000-mapping.dmp