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Analysis

  • max time kernel
    142s
  • max time network
    146s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    27/11/2022, 06:43

General

  • Target

    26c2ff994c52b1af4fa101765db788de6f24629a8ac6c7dccc39132296ad1ddc.exe

  • Size

    673KB

  • MD5

    b16b3d7369fb5f524c286c6c7dcbb294

  • SHA1

    4ebfefa4ac1ff34e679df00ebfb9833a51abfffa

  • SHA256

    26c2ff994c52b1af4fa101765db788de6f24629a8ac6c7dccc39132296ad1ddc

  • SHA512

    05f7e8e18ca789eb6fc107f5ffc16558d3710761c5705eeaf2df35545cc683b6fbb49ba8f5d8ce087036e638d1b6bfedf3bb454f356158ea689b1fe4327e6f84

  • SSDEEP

    12288:7+1VlCxzXBInIv+iZXStVTy+akg57+s8b06QHbxIw0yfkqi1O8lBswh2iuzUj9J1:oVIxy0hS/TrgGb0/7oyfktO8DGLzO

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\26c2ff994c52b1af4fa101765db788de6f24629a8ac6c7dccc39132296ad1ddc.exe
    "C:\Users\Admin\AppData\Local\Temp\26c2ff994c52b1af4fa101765db788de6f24629a8ac6c7dccc39132296ad1ddc.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:4308
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:736
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1440
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2216
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5084
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4116
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2032
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2536
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3384
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2432
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:692
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4732
          • 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:1560
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3076

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsu7BCE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2b6c8a9490108415217be3a8132eab65

            SHA1

            b27b4673bbfa4a4df61fa2a5408ac1d31c5fb6d8

            SHA256

            d7f43787f8449ec53e6fb5b1704b198dfd78dcbce4265074dfc7f2979bab7835

            SHA512

            716a8e3324993f402d41c4c6ee6028555aa2aa7cbf01d3fe4c58a818d42f8384c91b1322125bdc8662753b9fa46f01a13552a63c3da8485e7cc36cd39655b072

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2b6c8a9490108415217be3a8132eab65

            SHA1

            b27b4673bbfa4a4df61fa2a5408ac1d31c5fb6d8

            SHA256

            d7f43787f8449ec53e6fb5b1704b198dfd78dcbce4265074dfc7f2979bab7835

            SHA512

            716a8e3324993f402d41c4c6ee6028555aa2aa7cbf01d3fe4c58a818d42f8384c91b1322125bdc8662753b9fa46f01a13552a63c3da8485e7cc36cd39655b072

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2b6c8a9490108415217be3a8132eab65

            SHA1

            b27b4673bbfa4a4df61fa2a5408ac1d31c5fb6d8

            SHA256

            d7f43787f8449ec53e6fb5b1704b198dfd78dcbce4265074dfc7f2979bab7835

            SHA512

            716a8e3324993f402d41c4c6ee6028555aa2aa7cbf01d3fe4c58a818d42f8384c91b1322125bdc8662753b9fa46f01a13552a63c3da8485e7cc36cd39655b072

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2b6c8a9490108415217be3a8132eab65

            SHA1

            b27b4673bbfa4a4df61fa2a5408ac1d31c5fb6d8

            SHA256

            d7f43787f8449ec53e6fb5b1704b198dfd78dcbce4265074dfc7f2979bab7835

            SHA512

            716a8e3324993f402d41c4c6ee6028555aa2aa7cbf01d3fe4c58a818d42f8384c91b1322125bdc8662753b9fa46f01a13552a63c3da8485e7cc36cd39655b072

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            bff7470b0c88ce7cfbbc211811f0899f

            SHA1

            2e27b30adf6ff4cb1c2d44c913bcece064286648

            SHA256

            2feaf77e3aae90aafc9dc71406aba4680e33b743418c5b2659427fe43a628a9a

            SHA512

            8f98158438548b34078c33c28b00dfbdf6ed5aae68dbc34c21c047a9bf7f2183b20f4e9ffd8fe0ab96e650c663dbdfd569055f9210d5198b4364745da41ee041

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            bff7470b0c88ce7cfbbc211811f0899f

            SHA1

            2e27b30adf6ff4cb1c2d44c913bcece064286648

            SHA256

            2feaf77e3aae90aafc9dc71406aba4680e33b743418c5b2659427fe43a628a9a

            SHA512

            8f98158438548b34078c33c28b00dfbdf6ed5aae68dbc34c21c047a9bf7f2183b20f4e9ffd8fe0ab96e650c663dbdfd569055f9210d5198b4364745da41ee041

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            bff7470b0c88ce7cfbbc211811f0899f

            SHA1

            2e27b30adf6ff4cb1c2d44c913bcece064286648

            SHA256

            2feaf77e3aae90aafc9dc71406aba4680e33b743418c5b2659427fe43a628a9a

            SHA512

            8f98158438548b34078c33c28b00dfbdf6ed5aae68dbc34c21c047a9bf7f2183b20f4e9ffd8fe0ab96e650c663dbdfd569055f9210d5198b4364745da41ee041

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            40173e34e18bcb019055210bef4202d0

            SHA1

            d5dc7a218a44f4c145791a341fd29b58a2318491

            SHA256

            76a444ee2dd4bcf4dbb90d1bf91d1f8e0d3102e2616570a96aec4ee789878fdd

            SHA512

            d619a94295a98b345dc0bc5d868f76359c6ff050c98615de6aa7629789d2ba7d6a01b642a6cad8165d8d5f20c092afeb73bee5bf38beefb4075bd6f0f20a54d0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            40173e34e18bcb019055210bef4202d0

            SHA1

            d5dc7a218a44f4c145791a341fd29b58a2318491

            SHA256

            76a444ee2dd4bcf4dbb90d1bf91d1f8e0d3102e2616570a96aec4ee789878fdd

            SHA512

            d619a94295a98b345dc0bc5d868f76359c6ff050c98615de6aa7629789d2ba7d6a01b642a6cad8165d8d5f20c092afeb73bee5bf38beefb4075bd6f0f20a54d0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            76bdfc65fce3d6c4bac1bb6276f11a07

            SHA1

            5e8fb64c2c0a04ff73c5d9fda478c8be426937df

            SHA256

            93292c14ef1f0bb9231160f42461f5acd86521935c847c6b74b967856a5d9733

            SHA512

            1a4eec4566c52023da6c9b0caa994fcdb602e2c349e27cf106e92b5e619fde539d652c42ebccc713dfa94503fb60fbdb27917d3d0503a62472ad0aa1c95ceaa4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            76bdfc65fce3d6c4bac1bb6276f11a07

            SHA1

            5e8fb64c2c0a04ff73c5d9fda478c8be426937df

            SHA256

            93292c14ef1f0bb9231160f42461f5acd86521935c847c6b74b967856a5d9733

            SHA512

            1a4eec4566c52023da6c9b0caa994fcdb602e2c349e27cf106e92b5e619fde539d652c42ebccc713dfa94503fb60fbdb27917d3d0503a62472ad0aa1c95ceaa4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            76bdfc65fce3d6c4bac1bb6276f11a07

            SHA1

            5e8fb64c2c0a04ff73c5d9fda478c8be426937df

            SHA256

            93292c14ef1f0bb9231160f42461f5acd86521935c847c6b74b967856a5d9733

            SHA512

            1a4eec4566c52023da6c9b0caa994fcdb602e2c349e27cf106e92b5e619fde539d652c42ebccc713dfa94503fb60fbdb27917d3d0503a62472ad0aa1c95ceaa4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            64d3d28952704ed066e7f0b5409ac1ec

            SHA1

            9085ae94243535ecb0430a9416232b3174619859

            SHA256

            e90cac67d5c3c95326d4385ec21d8c96f1d06a17c85ca82b1d3919909f5b87a3

            SHA512

            3f3638a57cd5dc7e3233fb2bba385233bc0fe65b84445621d02d43b85625a3e0ca1b795b88017d7715e06bfeb88099b15747de79491a2367bae6775aa2d7779f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            64d3d28952704ed066e7f0b5409ac1ec

            SHA1

            9085ae94243535ecb0430a9416232b3174619859

            SHA256

            e90cac67d5c3c95326d4385ec21d8c96f1d06a17c85ca82b1d3919909f5b87a3

            SHA512

            3f3638a57cd5dc7e3233fb2bba385233bc0fe65b84445621d02d43b85625a3e0ca1b795b88017d7715e06bfeb88099b15747de79491a2367bae6775aa2d7779f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            64d3d28952704ed066e7f0b5409ac1ec

            SHA1

            9085ae94243535ecb0430a9416232b3174619859

            SHA256

            e90cac67d5c3c95326d4385ec21d8c96f1d06a17c85ca82b1d3919909f5b87a3

            SHA512

            3f3638a57cd5dc7e3233fb2bba385233bc0fe65b84445621d02d43b85625a3e0ca1b795b88017d7715e06bfeb88099b15747de79491a2367bae6775aa2d7779f

          • memory/4308-132-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4308-168-0x0000000000350000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB