Analysis

  • max time kernel
    42s
  • 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 10:22

General

  • Target

    770c805cd156407a9ebd227053cd2f76cf063f1da6bc844ff7eea020693ca434.exe

  • Size

    602KB

  • MD5

    156970b560056e0f1df08739d9ac8063

  • SHA1

    c03dcd5ccc33f4c2781f9a33f32e322b804b4260

  • SHA256

    770c805cd156407a9ebd227053cd2f76cf063f1da6bc844ff7eea020693ca434

  • SHA512

    7d6894c1d121a6483beb326ae1cfb7d10b77b69e2a629b0a4d6bb16e3bdb6f8d0b942d9755afb7aace23347cffd31d0481d2380365de0e86e6f3394f5a9d4377

  • SSDEEP

    12288:UIny5DYTP8l2esg9ONZsuHHbs+j0C4TWV3D7ytxZ:SUTP889RdHZj94uz7yzZ

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\770c805cd156407a9ebd227053cd2f76cf063f1da6bc844ff7eea020693ca434.exe
    "C:\Users\Admin\AppData\Local\Temp\770c805cd156407a9ebd227053cd2f76cf063f1da6bc844ff7eea020693ca434.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:1976
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1968
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1552
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1384
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1532
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1748
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1764
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:864
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1904
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:844
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:524
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:752
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1116

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c46ccb4bfc6e9f83010b4db77f80b2f4

            SHA1

            ed67ae142e44769d1c30d334554da713f2265160

            SHA256

            ad00e83149501f2017dfdc1929ebb93950a5506125c672af96e1e8ae2be9826f

            SHA512

            b970c420aed93cbfd766c2a94d541e83367d4348403f9aa1fef6420ca244426f90d39021b36a04e4040bcc3cd809f21866b13ab84e1d3b834047d41e85d88a03

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2dc3dfe8c03e3ecf6a02120e577d8a7e

            SHA1

            0afc07071eb9e60e548e6c0c0c4bd25e812ebf42

            SHA256

            dec92e7649c5449deb5baa39a5b41bb3426a878a1f4820a194e0ad104317545c

            SHA512

            6be2125511cc4b4d38a2d3631df2b300f3e997376405650bf3a2feef68b8929cf5f31810b6324a13277120c5ba8a7bcae4220024cddc47876956970e557453f2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            86cf711574d62293f6a0f2f2eb282ba8

            SHA1

            5b1b59e424f9eeb3b73b356dc245e14aa0862969

            SHA256

            6d4b740f33d3e0bb4cfb5791f9b6995bda0693260a5878d3599db1f8309b9371

            SHA512

            f6c029d82831856824334b38a697ba2a8d047c1b410de4ea219ddc1d8601885251d4a5f56d431631e39fa41fb38f02f1c650dc1d29fdb5b63a8ca718900646a1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            81bfc2b0d727037ca921905956094f37

            SHA1

            f4fbf6412c3c354bda7049b6579f249b9080ad8e

            SHA256

            4c8c71d6cf301740c116baa5ad257f91bdd1f3b1724b95ae486915e8f69101c5

            SHA512

            02ea9d80b89a826252ec484cad4a512e69c26a42f3d909c6853f1c35e2489722315a6819b26e87dfafd67eedfef96196472728d05d52a9845684967b512deef2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            81bfc2b0d727037ca921905956094f37

            SHA1

            f4fbf6412c3c354bda7049b6579f249b9080ad8e

            SHA256

            4c8c71d6cf301740c116baa5ad257f91bdd1f3b1724b95ae486915e8f69101c5

            SHA512

            02ea9d80b89a826252ec484cad4a512e69c26a42f3d909c6853f1c35e2489722315a6819b26e87dfafd67eedfef96196472728d05d52a9845684967b512deef2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b1e598f29649d7c83961f08a2faf451b

            SHA1

            2a16663787df4d137e6121e06304fbdb91ed6171

            SHA256

            7015b5c06c492daa99360dc96c6399d6e1380f9a70a107fe7a933283df5fe265

            SHA512

            72845c4e6a24e1ce8d4f789c5deab33034322674324c129fc31308246f1ad4df0ee2be3a215d037b1851150f4dcbcaf3c3caf3e596ba98f7a6ecf17120144c9a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b1e598f29649d7c83961f08a2faf451b

            SHA1

            2a16663787df4d137e6121e06304fbdb91ed6171

            SHA256

            7015b5c06c492daa99360dc96c6399d6e1380f9a70a107fe7a933283df5fe265

            SHA512

            72845c4e6a24e1ce8d4f789c5deab33034322674324c129fc31308246f1ad4df0ee2be3a215d037b1851150f4dcbcaf3c3caf3e596ba98f7a6ecf17120144c9a

          • \Users\Admin\AppData\Local\Temp\nsi16A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsi16A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi16A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi16A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi16A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c46ccb4bfc6e9f83010b4db77f80b2f4

            SHA1

            ed67ae142e44769d1c30d334554da713f2265160

            SHA256

            ad00e83149501f2017dfdc1929ebb93950a5506125c672af96e1e8ae2be9826f

            SHA512

            b970c420aed93cbfd766c2a94d541e83367d4348403f9aa1fef6420ca244426f90d39021b36a04e4040bcc3cd809f21866b13ab84e1d3b834047d41e85d88a03

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c46ccb4bfc6e9f83010b4db77f80b2f4

            SHA1

            ed67ae142e44769d1c30d334554da713f2265160

            SHA256

            ad00e83149501f2017dfdc1929ebb93950a5506125c672af96e1e8ae2be9826f

            SHA512

            b970c420aed93cbfd766c2a94d541e83367d4348403f9aa1fef6420ca244426f90d39021b36a04e4040bcc3cd809f21866b13ab84e1d3b834047d41e85d88a03

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            c46ccb4bfc6e9f83010b4db77f80b2f4

            SHA1

            ed67ae142e44769d1c30d334554da713f2265160

            SHA256

            ad00e83149501f2017dfdc1929ebb93950a5506125c672af96e1e8ae2be9826f

            SHA512

            b970c420aed93cbfd766c2a94d541e83367d4348403f9aa1fef6420ca244426f90d39021b36a04e4040bcc3cd809f21866b13ab84e1d3b834047d41e85d88a03

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2dc3dfe8c03e3ecf6a02120e577d8a7e

            SHA1

            0afc07071eb9e60e548e6c0c0c4bd25e812ebf42

            SHA256

            dec92e7649c5449deb5baa39a5b41bb3426a878a1f4820a194e0ad104317545c

            SHA512

            6be2125511cc4b4d38a2d3631df2b300f3e997376405650bf3a2feef68b8929cf5f31810b6324a13277120c5ba8a7bcae4220024cddc47876956970e557453f2

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2dc3dfe8c03e3ecf6a02120e577d8a7e

            SHA1

            0afc07071eb9e60e548e6c0c0c4bd25e812ebf42

            SHA256

            dec92e7649c5449deb5baa39a5b41bb3426a878a1f4820a194e0ad104317545c

            SHA512

            6be2125511cc4b4d38a2d3631df2b300f3e997376405650bf3a2feef68b8929cf5f31810b6324a13277120c5ba8a7bcae4220024cddc47876956970e557453f2

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            86cf711574d62293f6a0f2f2eb282ba8

            SHA1

            5b1b59e424f9eeb3b73b356dc245e14aa0862969

            SHA256

            6d4b740f33d3e0bb4cfb5791f9b6995bda0693260a5878d3599db1f8309b9371

            SHA512

            f6c029d82831856824334b38a697ba2a8d047c1b410de4ea219ddc1d8601885251d4a5f56d431631e39fa41fb38f02f1c650dc1d29fdb5b63a8ca718900646a1

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            81bfc2b0d727037ca921905956094f37

            SHA1

            f4fbf6412c3c354bda7049b6579f249b9080ad8e

            SHA256

            4c8c71d6cf301740c116baa5ad257f91bdd1f3b1724b95ae486915e8f69101c5

            SHA512

            02ea9d80b89a826252ec484cad4a512e69c26a42f3d909c6853f1c35e2489722315a6819b26e87dfafd67eedfef96196472728d05d52a9845684967b512deef2

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b1e598f29649d7c83961f08a2faf451b

            SHA1

            2a16663787df4d137e6121e06304fbdb91ed6171

            SHA256

            7015b5c06c492daa99360dc96c6399d6e1380f9a70a107fe7a933283df5fe265

            SHA512

            72845c4e6a24e1ce8d4f789c5deab33034322674324c129fc31308246f1ad4df0ee2be3a215d037b1851150f4dcbcaf3c3caf3e596ba98f7a6ecf17120144c9a

          • memory/524-86-0x0000000000000000-mapping.dmp

          • memory/752-87-0x0000000000000000-mapping.dmp

          • memory/844-81-0x0000000000000000-mapping.dmp

          • memory/864-76-0x0000000000000000-mapping.dmp

          • memory/1384-61-0x0000000000000000-mapping.dmp

          • memory/1532-62-0x0000000000000000-mapping.dmp

          • memory/1552-59-0x0000000000000000-mapping.dmp

          • memory/1748-64-0x0000000000000000-mapping.dmp

          • memory/1764-70-0x0000000000000000-mapping.dmp

          • memory/1904-80-0x0000000000000000-mapping.dmp

          • memory/1968-58-0x0000000000000000-mapping.dmp

          • memory/1976-54-0x00000000764D1000-0x00000000764D3000-memory.dmp

            Filesize

            8KB

          • memory/1976-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1976-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB