Analysis

  • max time kernel
    33s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:58

General

  • Target

    35d63a95c98f85cf07ea11bd7c429f13fdd574343af21f74fdd0022e0ba881ca.exe

  • Size

    447KB

  • MD5

    f6a854858ca30b6d32b847c50bb91990

  • SHA1

    b9354f93d11fa79b7506ae9ab37fd156619910e5

  • SHA256

    35d63a95c98f85cf07ea11bd7c429f13fdd574343af21f74fdd0022e0ba881ca

  • SHA512

    da55307df22b11b9587af1560070686855757a271cebe864fb73320f224b884a2e7658e92f84a0b4973cc3cdd5c89cd554750d35671af4e6100f127dc6d1f73f

  • SSDEEP

    12288:hQCe0QQ0i7FFknarUaD0wTUmsHArRqkf0:hne0Nl7DkshDF5smXc

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\35d63a95c98f85cf07ea11bd7c429f13fdd574343af21f74fdd0022e0ba881ca.exe
    "C:\Users\Admin\AppData\Local\Temp\35d63a95c98f85cf07ea11bd7c429f13fdd574343af21f74fdd0022e0ba881ca.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:2040
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1340
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1920
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1136
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1096
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:340
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1492
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1796
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1844
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:332
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:668
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:588
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:108
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1052

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22e7068a9cdee92ed0bcff69ab3f096a

            SHA1

            99ee25993993d2489bc1b679ad98f575917ce8d3

            SHA256

            e8607aaeb4a95d9cc1cafbf4c39af7dc6bc80750b223bfac9a3d00946221cc59

            SHA512

            53e7fdfd6cb7268caa8010ad2393b8cbabdcb641abd4c3685e3f47d1dbfd0172f98ad5255b9e5a1fbd3a6be183ff78bf08d2747e69dd3e99ec2ca4fd86c648f6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d312e0ee46ebe290286fbd4e09ec1100

            SHA1

            e4c4a07939b45102b1e7e71e762ae04a469bb504

            SHA256

            83d1b3ad464e62d0c65d0c228ac7b888b9348bcdb42690a0c71b56fb13c00e7d

            SHA512

            d106dd78057431dd4bcac66d425fd161c1444b5ff96e0e580f0d8c49d1924582eaf55fce5ab5882f3cc73ac2191388e65aefc71c9c41e301d637ca84289410ff

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            02a46109cc765b50aeaef451db8c119b

            SHA1

            8f29b52c8e744fbebab8c9bec9a6e628184eae01

            SHA256

            8feb943614f67e1021bc2436bb208af4800ee13bc8aa82adbf7c6aa8d02885ec

            SHA512

            1c5db05b2cffa098db0e2a7b34377d3295a722180485cd9eeb6d28402b05e4bbe9a962bc46390399f4da8300e036e22892ff5b65b128dc26c0f647b6ba52c565

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2dfc100a90635e3dd7a4dd60da7b5480

            SHA1

            3b88ecd75dd83d18a5e04e57740fad181f9f4b5a

            SHA256

            e8fa0a5f27cc59ba97cc58e442fb5095b4579c8ec26023ee1d99f969e0f18f76

            SHA512

            c6d48aa1a0ff22692b3159ecbf1deb9639504fb999a5cb059a990c2aae211c4c1a24968c57f6732c0621c1d9eca8429ec04cab9fe0691d9c25475208c0e94a64

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2dfc100a90635e3dd7a4dd60da7b5480

            SHA1

            3b88ecd75dd83d18a5e04e57740fad181f9f4b5a

            SHA256

            e8fa0a5f27cc59ba97cc58e442fb5095b4579c8ec26023ee1d99f969e0f18f76

            SHA512

            c6d48aa1a0ff22692b3159ecbf1deb9639504fb999a5cb059a990c2aae211c4c1a24968c57f6732c0621c1d9eca8429ec04cab9fe0691d9c25475208c0e94a64

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3016024faf9489e30e0493900e9eb8b5

            SHA1

            8822120ba5832be502363ebedf32b484891d0caa

            SHA256

            998321cb565475b23844150fadbbc3e8b944c8dc7db6d1bdf5d23349f66f3a14

            SHA512

            1d541586ce16916f569866e0d1670b0d8eb822cb02f37be72ec2ad15935f6c8d4f10a0f84358ebf6dac4b406bfeb9a63b92a25a0d01953da9c444faf1cb55ad5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3016024faf9489e30e0493900e9eb8b5

            SHA1

            8822120ba5832be502363ebedf32b484891d0caa

            SHA256

            998321cb565475b23844150fadbbc3e8b944c8dc7db6d1bdf5d23349f66f3a14

            SHA512

            1d541586ce16916f569866e0d1670b0d8eb822cb02f37be72ec2ad15935f6c8d4f10a0f84358ebf6dac4b406bfeb9a63b92a25a0d01953da9c444faf1cb55ad5

          • \Users\Admin\AppData\Local\Temp\nsy8AE4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy8AE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy8AE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy8AE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy8AE4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22e7068a9cdee92ed0bcff69ab3f096a

            SHA1

            99ee25993993d2489bc1b679ad98f575917ce8d3

            SHA256

            e8607aaeb4a95d9cc1cafbf4c39af7dc6bc80750b223bfac9a3d00946221cc59

            SHA512

            53e7fdfd6cb7268caa8010ad2393b8cbabdcb641abd4c3685e3f47d1dbfd0172f98ad5255b9e5a1fbd3a6be183ff78bf08d2747e69dd3e99ec2ca4fd86c648f6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22e7068a9cdee92ed0bcff69ab3f096a

            SHA1

            99ee25993993d2489bc1b679ad98f575917ce8d3

            SHA256

            e8607aaeb4a95d9cc1cafbf4c39af7dc6bc80750b223bfac9a3d00946221cc59

            SHA512

            53e7fdfd6cb7268caa8010ad2393b8cbabdcb641abd4c3685e3f47d1dbfd0172f98ad5255b9e5a1fbd3a6be183ff78bf08d2747e69dd3e99ec2ca4fd86c648f6

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22e7068a9cdee92ed0bcff69ab3f096a

            SHA1

            99ee25993993d2489bc1b679ad98f575917ce8d3

            SHA256

            e8607aaeb4a95d9cc1cafbf4c39af7dc6bc80750b223bfac9a3d00946221cc59

            SHA512

            53e7fdfd6cb7268caa8010ad2393b8cbabdcb641abd4c3685e3f47d1dbfd0172f98ad5255b9e5a1fbd3a6be183ff78bf08d2747e69dd3e99ec2ca4fd86c648f6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d312e0ee46ebe290286fbd4e09ec1100

            SHA1

            e4c4a07939b45102b1e7e71e762ae04a469bb504

            SHA256

            83d1b3ad464e62d0c65d0c228ac7b888b9348bcdb42690a0c71b56fb13c00e7d

            SHA512

            d106dd78057431dd4bcac66d425fd161c1444b5ff96e0e580f0d8c49d1924582eaf55fce5ab5882f3cc73ac2191388e65aefc71c9c41e301d637ca84289410ff

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d312e0ee46ebe290286fbd4e09ec1100

            SHA1

            e4c4a07939b45102b1e7e71e762ae04a469bb504

            SHA256

            83d1b3ad464e62d0c65d0c228ac7b888b9348bcdb42690a0c71b56fb13c00e7d

            SHA512

            d106dd78057431dd4bcac66d425fd161c1444b5ff96e0e580f0d8c49d1924582eaf55fce5ab5882f3cc73ac2191388e65aefc71c9c41e301d637ca84289410ff

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            02a46109cc765b50aeaef451db8c119b

            SHA1

            8f29b52c8e744fbebab8c9bec9a6e628184eae01

            SHA256

            8feb943614f67e1021bc2436bb208af4800ee13bc8aa82adbf7c6aa8d02885ec

            SHA512

            1c5db05b2cffa098db0e2a7b34377d3295a722180485cd9eeb6d28402b05e4bbe9a962bc46390399f4da8300e036e22892ff5b65b128dc26c0f647b6ba52c565

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2dfc100a90635e3dd7a4dd60da7b5480

            SHA1

            3b88ecd75dd83d18a5e04e57740fad181f9f4b5a

            SHA256

            e8fa0a5f27cc59ba97cc58e442fb5095b4579c8ec26023ee1d99f969e0f18f76

            SHA512

            c6d48aa1a0ff22692b3159ecbf1deb9639504fb999a5cb059a990c2aae211c4c1a24968c57f6732c0621c1d9eca8429ec04cab9fe0691d9c25475208c0e94a64

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3016024faf9489e30e0493900e9eb8b5

            SHA1

            8822120ba5832be502363ebedf32b484891d0caa

            SHA256

            998321cb565475b23844150fadbbc3e8b944c8dc7db6d1bdf5d23349f66f3a14

            SHA512

            1d541586ce16916f569866e0d1670b0d8eb822cb02f37be72ec2ad15935f6c8d4f10a0f84358ebf6dac4b406bfeb9a63b92a25a0d01953da9c444faf1cb55ad5

          • memory/332-80-0x0000000000000000-mapping.dmp

          • memory/340-63-0x0000000000000000-mapping.dmp

          • memory/588-86-0x0000000000000000-mapping.dmp

          • memory/668-85-0x0000000000000000-mapping.dmp

          • memory/1096-61-0x0000000000000000-mapping.dmp

          • memory/1136-60-0x0000000000000000-mapping.dmp

          • memory/1340-57-0x0000000000000000-mapping.dmp

          • memory/1492-69-0x0000000000000000-mapping.dmp

          • memory/1796-75-0x0000000000000000-mapping.dmp

          • memory/1844-79-0x0000000000000000-mapping.dmp

          • memory/1920-58-0x0000000000000000-mapping.dmp

          • memory/2040-54-0x00000000762F1000-0x00000000762F3000-memory.dmp

            Filesize

            8KB