Analysis

  • max time kernel
    154s
  • max time network
    175s
  • 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 10:10

General

  • Target

    df77f5264a5d0f3a75cd2bd71f55e34c134e16085b911eb7bce921f8168e3256.exe

  • Size

    602KB

  • MD5

    068501c8e81bb6ca12fa068dcb78884d

  • SHA1

    41f284972eb52d89b37bfe2ad520e6218096027f

  • SHA256

    df77f5264a5d0f3a75cd2bd71f55e34c134e16085b911eb7bce921f8168e3256

  • SHA512

    d914d19fc6d3c175e7efc485296da73d115d70323e6ada8a36f4bac8fd55bb9515d6357665a9f75df20d5d3ecfacaf3884a668929f2f0611feee9ed2a1268b19

  • SSDEEP

    12288:RIny5DYTuPh1pIMQEZEVdxrcKJrG3wgfYmR/jum5UYJwe:tUTuPPprEVdxYfYmR/X

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\df77f5264a5d0f3a75cd2bd71f55e34c134e16085b911eb7bce921f8168e3256.exe
    "C:\Users\Admin\AppData\Local\Temp\df77f5264a5d0f3a75cd2bd71f55e34c134e16085b911eb7bce921f8168e3256.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:4320
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1316
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3036
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2412
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4716
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1492
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4000
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1708
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:732
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4700
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2180
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1876
          • 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:2240
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4204

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsaD4BC.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3f1c114a6615c8ce12767549cb47e5aa

            SHA1

            33b0a3ca5f3ad09870e6485ea623152dd5d6b40e

            SHA256

            f13eb6ea210f77a54eb1add58e5e4740fa6f8a754565fb03eb970475533f6ceb

            SHA512

            7b28a45d85914e982423926e8e5791582e6995a1d7fb565e205a7874c3b4e280749478439c4ac346062020fcd6b87b523fbd875da5714b9c501ac6138de1a7f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3f1c114a6615c8ce12767549cb47e5aa

            SHA1

            33b0a3ca5f3ad09870e6485ea623152dd5d6b40e

            SHA256

            f13eb6ea210f77a54eb1add58e5e4740fa6f8a754565fb03eb970475533f6ceb

            SHA512

            7b28a45d85914e982423926e8e5791582e6995a1d7fb565e205a7874c3b4e280749478439c4ac346062020fcd6b87b523fbd875da5714b9c501ac6138de1a7f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3f1c114a6615c8ce12767549cb47e5aa

            SHA1

            33b0a3ca5f3ad09870e6485ea623152dd5d6b40e

            SHA256

            f13eb6ea210f77a54eb1add58e5e4740fa6f8a754565fb03eb970475533f6ceb

            SHA512

            7b28a45d85914e982423926e8e5791582e6995a1d7fb565e205a7874c3b4e280749478439c4ac346062020fcd6b87b523fbd875da5714b9c501ac6138de1a7f3

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3f1c114a6615c8ce12767549cb47e5aa

            SHA1

            33b0a3ca5f3ad09870e6485ea623152dd5d6b40e

            SHA256

            f13eb6ea210f77a54eb1add58e5e4740fa6f8a754565fb03eb970475533f6ceb

            SHA512

            7b28a45d85914e982423926e8e5791582e6995a1d7fb565e205a7874c3b4e280749478439c4ac346062020fcd6b87b523fbd875da5714b9c501ac6138de1a7f3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            af9a08f065611a0a4a8f76d63fb7a3e9

            SHA1

            6493b794fe0d8ecbf8b577bbe3a14e622c340e57

            SHA256

            139c138a798b9c33b5d958af9a2383a28168e8e3bbe79194a2d49465663297b1

            SHA512

            30333b2e7a7f4d9455d88bb72bc771547b43a5ab81dc544385e1388f763f45569e6840b2d7ec050896ff8a0b3cd44c5d1fa47da73ca550c919b1d1e9b49a69ba

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            af9a08f065611a0a4a8f76d63fb7a3e9

            SHA1

            6493b794fe0d8ecbf8b577bbe3a14e622c340e57

            SHA256

            139c138a798b9c33b5d958af9a2383a28168e8e3bbe79194a2d49465663297b1

            SHA512

            30333b2e7a7f4d9455d88bb72bc771547b43a5ab81dc544385e1388f763f45569e6840b2d7ec050896ff8a0b3cd44c5d1fa47da73ca550c919b1d1e9b49a69ba

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            af9a08f065611a0a4a8f76d63fb7a3e9

            SHA1

            6493b794fe0d8ecbf8b577bbe3a14e622c340e57

            SHA256

            139c138a798b9c33b5d958af9a2383a28168e8e3bbe79194a2d49465663297b1

            SHA512

            30333b2e7a7f4d9455d88bb72bc771547b43a5ab81dc544385e1388f763f45569e6840b2d7ec050896ff8a0b3cd44c5d1fa47da73ca550c919b1d1e9b49a69ba

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            cabb6ec0bd948e13994e82c61ab18fb9

            SHA1

            53949bbde6eb4e68884fd4978770a1b9390690a0

            SHA256

            b9958ab730b03c2acd47295dcf077095cccae42804b27e15cb2f9858b5a15dc8

            SHA512

            f7d7accd1ac0b9c46fc1651d4670a350e5d94ce7568fc621562d34b286de2e6798665576f4d5a30ca5950246fe729cbfd2d461c4cab88f0992ce7bf1e85abcd5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            cabb6ec0bd948e13994e82c61ab18fb9

            SHA1

            53949bbde6eb4e68884fd4978770a1b9390690a0

            SHA256

            b9958ab730b03c2acd47295dcf077095cccae42804b27e15cb2f9858b5a15dc8

            SHA512

            f7d7accd1ac0b9c46fc1651d4670a350e5d94ce7568fc621562d34b286de2e6798665576f4d5a30ca5950246fe729cbfd2d461c4cab88f0992ce7bf1e85abcd5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8cae5f41585b45e3b86a8c6f6650af34

            SHA1

            668bb8fbe574211767f9c3dfed2bbec34f204692

            SHA256

            9764310ac7bd5a8eff9b63dd86a11ca8e515b49c146765a7db79dc2800f76c14

            SHA512

            f70bc19c40ba27a3eada5d056a4683c48d270e2833b7e6954f951449cf36cbc82d41ccaf2988007b136ffa1af6b27ecec66ae252911b124b70c68b552085bc3c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8cae5f41585b45e3b86a8c6f6650af34

            SHA1

            668bb8fbe574211767f9c3dfed2bbec34f204692

            SHA256

            9764310ac7bd5a8eff9b63dd86a11ca8e515b49c146765a7db79dc2800f76c14

            SHA512

            f70bc19c40ba27a3eada5d056a4683c48d270e2833b7e6954f951449cf36cbc82d41ccaf2988007b136ffa1af6b27ecec66ae252911b124b70c68b552085bc3c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8cae5f41585b45e3b86a8c6f6650af34

            SHA1

            668bb8fbe574211767f9c3dfed2bbec34f204692

            SHA256

            9764310ac7bd5a8eff9b63dd86a11ca8e515b49c146765a7db79dc2800f76c14

            SHA512

            f70bc19c40ba27a3eada5d056a4683c48d270e2833b7e6954f951449cf36cbc82d41ccaf2988007b136ffa1af6b27ecec66ae252911b124b70c68b552085bc3c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a8e9875d56df66e978818b31bd6851d0

            SHA1

            a0192f280aba7474911e8b3dfc0db7c2a9a250dc

            SHA256

            a955db4b56726aeb6ee25bfe74188f336e159e6d485f5a2ca8b8216365709462

            SHA512

            82142786156607e7182a5d3b4332177ef8d18973b12f3a955f768e33a98886746c1075b5e537a35a0c065af630baa4479e3dc85aa80304f79a42d2276c0fa263

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a8e9875d56df66e978818b31bd6851d0

            SHA1

            a0192f280aba7474911e8b3dfc0db7c2a9a250dc

            SHA256

            a955db4b56726aeb6ee25bfe74188f336e159e6d485f5a2ca8b8216365709462

            SHA512

            82142786156607e7182a5d3b4332177ef8d18973b12f3a955f768e33a98886746c1075b5e537a35a0c065af630baa4479e3dc85aa80304f79a42d2276c0fa263

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a8e9875d56df66e978818b31bd6851d0

            SHA1

            a0192f280aba7474911e8b3dfc0db7c2a9a250dc

            SHA256

            a955db4b56726aeb6ee25bfe74188f336e159e6d485f5a2ca8b8216365709462

            SHA512

            82142786156607e7182a5d3b4332177ef8d18973b12f3a955f768e33a98886746c1075b5e537a35a0c065af630baa4479e3dc85aa80304f79a42d2276c0fa263

          • memory/732-159-0x0000000000000000-mapping.dmp

          • memory/1316-136-0x0000000000000000-mapping.dmp

          • memory/1492-142-0x0000000000000000-mapping.dmp

          • memory/1708-153-0x0000000000000000-mapping.dmp

          • memory/1876-167-0x0000000000000000-mapping.dmp

          • memory/2180-166-0x0000000000000000-mapping.dmp

          • memory/2412-140-0x0000000000000000-mapping.dmp

          • memory/3036-137-0x0000000000000000-mapping.dmp

          • memory/4000-147-0x0000000000000000-mapping.dmp

          • memory/4320-158-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4320-133-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4320-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4700-160-0x0000000000000000-mapping.dmp

          • memory/4716-141-0x0000000000000000-mapping.dmp