Analysis

  • max time kernel
    142s
  • max time network
    152s
  • 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 10:21

General

  • Target

    7b1bda75e491f5ac3a8d72971a3babf6e1c6834c1bfe49a58f62eebf4a43a3ea.exe

  • Size

    603KB

  • MD5

    7e3da09c7ba3cf6d2b0280d87b116b43

  • SHA1

    deeb4f4a63b64b69b50b6650ec4df366ca4edf0b

  • SHA256

    7b1bda75e491f5ac3a8d72971a3babf6e1c6834c1bfe49a58f62eebf4a43a3ea

  • SHA512

    eedd4976b4973ec551ed57486fe8308037169c686e27a31462c872c2ffb009325a3a8517a2feed427917a6ca22a00b381ab011a045e43b6c58544617f0daa389

  • SSDEEP

    12288:vIny5DYTMIhCmrrPT/CaQ23JLTjakHcCPaLBoMVy5OuNVy7jK5xOq:3UTMOjPOaQ2Jjf81NoMVluNV2qR

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\7b1bda75e491f5ac3a8d72971a3babf6e1c6834c1bfe49a58f62eebf4a43a3ea.exe
    "C:\Users\Admin\AppData\Local\Temp\7b1bda75e491f5ac3a8d72971a3babf6e1c6834c1bfe49a58f62eebf4a43a3ea.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:4984
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4180
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3312
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1032
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2484
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3124
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4720
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:5068
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4488
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4476
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4076
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4912
          • 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:4032
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:532

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl70F1.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdf48f1a6ad9edb1c614461ee904620f

            SHA1

            6039393457a48902f32d3171170e08c382824620

            SHA256

            b22b83c402c6b0ef936314854761662e36c86b7ba37135e85ac9017e44d27113

            SHA512

            80521cd2be1b40b35274f222739c45cbb621a50b3c084b9a6acd13c502db7848632110eeae0c39fb5ae3a5fe3fcf8357f6c44fb4364c2ac383851d173c519768

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdf48f1a6ad9edb1c614461ee904620f

            SHA1

            6039393457a48902f32d3171170e08c382824620

            SHA256

            b22b83c402c6b0ef936314854761662e36c86b7ba37135e85ac9017e44d27113

            SHA512

            80521cd2be1b40b35274f222739c45cbb621a50b3c084b9a6acd13c502db7848632110eeae0c39fb5ae3a5fe3fcf8357f6c44fb4364c2ac383851d173c519768

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdf48f1a6ad9edb1c614461ee904620f

            SHA1

            6039393457a48902f32d3171170e08c382824620

            SHA256

            b22b83c402c6b0ef936314854761662e36c86b7ba37135e85ac9017e44d27113

            SHA512

            80521cd2be1b40b35274f222739c45cbb621a50b3c084b9a6acd13c502db7848632110eeae0c39fb5ae3a5fe3fcf8357f6c44fb4364c2ac383851d173c519768

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdf48f1a6ad9edb1c614461ee904620f

            SHA1

            6039393457a48902f32d3171170e08c382824620

            SHA256

            b22b83c402c6b0ef936314854761662e36c86b7ba37135e85ac9017e44d27113

            SHA512

            80521cd2be1b40b35274f222739c45cbb621a50b3c084b9a6acd13c502db7848632110eeae0c39fb5ae3a5fe3fcf8357f6c44fb4364c2ac383851d173c519768

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d2ade69ebc7031d6eb7751af719baf7c

            SHA1

            6b727e244dabb62ac89a7d9a5fd8cfcf1aa18b5a

            SHA256

            20a2f55f0e4f99e42e779b398aafc81d5a5ca355f101ef13b51195055885d65f

            SHA512

            f6a4f3429b03c3f627fe4e988eb6cfab92e42a35cd21254dc9dbd301efdba69451008c78585a376f228875dcda8c4979a4cf6aa4d430c5e98bc392bc1ca065e3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d2ade69ebc7031d6eb7751af719baf7c

            SHA1

            6b727e244dabb62ac89a7d9a5fd8cfcf1aa18b5a

            SHA256

            20a2f55f0e4f99e42e779b398aafc81d5a5ca355f101ef13b51195055885d65f

            SHA512

            f6a4f3429b03c3f627fe4e988eb6cfab92e42a35cd21254dc9dbd301efdba69451008c78585a376f228875dcda8c4979a4cf6aa4d430c5e98bc392bc1ca065e3

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d2ade69ebc7031d6eb7751af719baf7c

            SHA1

            6b727e244dabb62ac89a7d9a5fd8cfcf1aa18b5a

            SHA256

            20a2f55f0e4f99e42e779b398aafc81d5a5ca355f101ef13b51195055885d65f

            SHA512

            f6a4f3429b03c3f627fe4e988eb6cfab92e42a35cd21254dc9dbd301efdba69451008c78585a376f228875dcda8c4979a4cf6aa4d430c5e98bc392bc1ca065e3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c24d107d8deaaba6d6e3cc4853f4a536

            SHA1

            f91ac8c5bb5b2c64836bce87b78d3f3e652fc2c4

            SHA256

            cac04f84ecb1d1e494ae9da055efc90c1aeb6a89caa5c8d2db3e371b7e59baad

            SHA512

            547956593e84f958c20ba8dede8d787a34987f3a90e9d7a67c33f38d21a4bb1fb71bfc1a91e50af6b4dc196769967451508324f1b425b2f1b884c262647c0b37

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            c24d107d8deaaba6d6e3cc4853f4a536

            SHA1

            f91ac8c5bb5b2c64836bce87b78d3f3e652fc2c4

            SHA256

            cac04f84ecb1d1e494ae9da055efc90c1aeb6a89caa5c8d2db3e371b7e59baad

            SHA512

            547956593e84f958c20ba8dede8d787a34987f3a90e9d7a67c33f38d21a4bb1fb71bfc1a91e50af6b4dc196769967451508324f1b425b2f1b884c262647c0b37

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47cf6e12131118acc57294607444735e

            SHA1

            137975dfa763811deb141bb0ca7cb57095ea0938

            SHA256

            b4cd58ee72baa5e41f8b8968b8880012d8b58ba73ad85772886efa0abc901e25

            SHA512

            ce93e7dc24b2afc7a6b5b45e9deeb8eff4e9b0b4042f2f9b62c9bc49b96b4666c577dd0ab43a9cffcf4bec6234ba4633c68d3f8271fcc0dd8dbe2fc035e7c1ac

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47cf6e12131118acc57294607444735e

            SHA1

            137975dfa763811deb141bb0ca7cb57095ea0938

            SHA256

            b4cd58ee72baa5e41f8b8968b8880012d8b58ba73ad85772886efa0abc901e25

            SHA512

            ce93e7dc24b2afc7a6b5b45e9deeb8eff4e9b0b4042f2f9b62c9bc49b96b4666c577dd0ab43a9cffcf4bec6234ba4633c68d3f8271fcc0dd8dbe2fc035e7c1ac

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47cf6e12131118acc57294607444735e

            SHA1

            137975dfa763811deb141bb0ca7cb57095ea0938

            SHA256

            b4cd58ee72baa5e41f8b8968b8880012d8b58ba73ad85772886efa0abc901e25

            SHA512

            ce93e7dc24b2afc7a6b5b45e9deeb8eff4e9b0b4042f2f9b62c9bc49b96b4666c577dd0ab43a9cffcf4bec6234ba4633c68d3f8271fcc0dd8dbe2fc035e7c1ac

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            259a6e2b719bd3bf28c0cd6f4408ea02

            SHA1

            d9452a8e821df758aa03b61695d2524cf6754ad7

            SHA256

            c9777d90a58840f4adf88a45fe210833f143730823945071090b57176488efef

            SHA512

            24bf2a602c32c3f2f2b8ecc4f88a8d7b790fd27a45b26f6c6f21623f2257678d02f2fb798ab14c4f50d686fde880070bc62e26408d85a31a37f11df6fccce21c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            259a6e2b719bd3bf28c0cd6f4408ea02

            SHA1

            d9452a8e821df758aa03b61695d2524cf6754ad7

            SHA256

            c9777d90a58840f4adf88a45fe210833f143730823945071090b57176488efef

            SHA512

            24bf2a602c32c3f2f2b8ecc4f88a8d7b790fd27a45b26f6c6f21623f2257678d02f2fb798ab14c4f50d686fde880070bc62e26408d85a31a37f11df6fccce21c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            259a6e2b719bd3bf28c0cd6f4408ea02

            SHA1

            d9452a8e821df758aa03b61695d2524cf6754ad7

            SHA256

            c9777d90a58840f4adf88a45fe210833f143730823945071090b57176488efef

            SHA512

            24bf2a602c32c3f2f2b8ecc4f88a8d7b790fd27a45b26f6c6f21623f2257678d02f2fb798ab14c4f50d686fde880070bc62e26408d85a31a37f11df6fccce21c

          • memory/1032-140-0x0000000000000000-mapping.dmp

          • memory/2484-141-0x0000000000000000-mapping.dmp

          • memory/3124-142-0x0000000000000000-mapping.dmp

          • memory/3312-137-0x0000000000000000-mapping.dmp

          • memory/4076-165-0x0000000000000000-mapping.dmp

          • memory/4180-135-0x0000000000000000-mapping.dmp

          • memory/4476-159-0x0000000000000000-mapping.dmp

          • memory/4488-158-0x0000000000000000-mapping.dmp

          • memory/4720-147-0x0000000000000000-mapping.dmp

          • memory/4912-166-0x0000000000000000-mapping.dmp

          • memory/4984-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4984-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5068-153-0x0000000000000000-mapping.dmp