Analysis

  • max time kernel
    43s
  • 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 10:11

General

  • Target

    d32bc881737bb840260c6ec60b11361b5b1508b80064509d2f3636abf7d84a6e.exe

  • Size

    602KB

  • MD5

    e5f162cd8e3b6f753e04cb92c0ffd26b

  • SHA1

    1e3269400f329f0de973a7e59154e917d6fa1b72

  • SHA256

    d32bc881737bb840260c6ec60b11361b5b1508b80064509d2f3636abf7d84a6e

  • SHA512

    cac6cb46a57774007d6a479aaf81fa6346db9350d7821d50dc821275afc4424f520c6a207f27c015586c3047bbe2266ba84e2b05693c1ad7dd268b633c3a7d6e

  • SSDEEP

    12288:RIny5DYTgSVIK0omt2be01pbyE9abvxu3yfvMgtVZ1Rm3xF:tUTgen0PN0rbpUbxmyfjVZ1ExF

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\d32bc881737bb840260c6ec60b11361b5b1508b80064509d2f3636abf7d84a6e.exe
    "C:\Users\Admin\AppData\Local\Temp\d32bc881737bb840260c6ec60b11361b5b1508b80064509d2f3636abf7d84a6e.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:1668
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:952
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1752
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1640
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1712
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1572
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1796
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1524
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1124
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1644
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1984
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1520
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:844
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1508

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b30cac28a2f10ed44b377b8d2b0f107c

            SHA1

            dce97c3dae91b001060815b18501cc8a66695306

            SHA256

            1a1b05720cd09a630ed51ebceb17e2905bb69abb3f2df4de74922816639bac65

            SHA512

            d54608a2e009d8ef85a6e0ae48994613eec738d7901082a3b1301c2936b5d2344fe28fc1cfd5325cd886303f3a7df85cada4c80ed16a256590b76252810f977a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5bb3334d80c50e8316ffc8f0d3c562f1

            SHA1

            b2ac9260ba2bf6507ba536324461ff8a220db184

            SHA256

            83f63fe7503060319e0311a9f20749035d8a82861a316d9da905414403de6987

            SHA512

            70d39faf01d37df11e81d002f871a5b59077cf519c1f52d31a5ceaf86f28a70258a14e8dbcbe7dd5e47142c811fb43b21ed1a5285a26c4fd98b2eb755c0d5944

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            255e8eff8ca888ea36bdfbb37f62d5b3

            SHA1

            7b3f2e371c566479adf5e37cb7e74accd34dc51b

            SHA256

            98c76e9337a965162faa6393d28a9ec5abfc1a1ffdcae311c2e11e0aa2b0ccf9

            SHA512

            45f77001be252bd50eb7f4ea2a90b26401855c77a55de2e54a1f7ff46142b6e83bd49c0cfe52d3ed23f772f4bb75a777f462f08d2734958c14f79b059bb8e751

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c3660869c67cfd9a21634a10dc8ebe93

            SHA1

            502bdb8bc5fbd3b51e318f39584fc3a4d49c9556

            SHA256

            9d8b0695dafd5acc4ccff2776e5e5f0ee98f6d37749476baffd610c2c147e424

            SHA512

            7caf47a023eab1256dcc67ecf6e37d80d3062a365a79c742a9c3fe20091ee3bbc06184ab4226c76d5ff13e9b3bf659d3edf4314b943857438249123397688e42

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c3660869c67cfd9a21634a10dc8ebe93

            SHA1

            502bdb8bc5fbd3b51e318f39584fc3a4d49c9556

            SHA256

            9d8b0695dafd5acc4ccff2776e5e5f0ee98f6d37749476baffd610c2c147e424

            SHA512

            7caf47a023eab1256dcc67ecf6e37d80d3062a365a79c742a9c3fe20091ee3bbc06184ab4226c76d5ff13e9b3bf659d3edf4314b943857438249123397688e42

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3fc04868a74fc20c5f5b08d2320b3c09

            SHA1

            0c2242ca740650591bc2aad95e0d933fc5042c43

            SHA256

            329ddece0d02c2a196915a08b1961c949f74157b999961ab0d351a7bcee8668e

            SHA512

            5d0f370e668edead821dc42104afaf7882ce55df0290598ad8badba87a7bf39a3a72ba9e0abf5d82a607d27f4446be4e91eb5d3aa80f42bd631f5bebda54659d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3fc04868a74fc20c5f5b08d2320b3c09

            SHA1

            0c2242ca740650591bc2aad95e0d933fc5042c43

            SHA256

            329ddece0d02c2a196915a08b1961c949f74157b999961ab0d351a7bcee8668e

            SHA512

            5d0f370e668edead821dc42104afaf7882ce55df0290598ad8badba87a7bf39a3a72ba9e0abf5d82a607d27f4446be4e91eb5d3aa80f42bd631f5bebda54659d

          • \Users\Admin\AppData\Local\Temp\nso8920.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso8920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso8920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso8920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso8920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b30cac28a2f10ed44b377b8d2b0f107c

            SHA1

            dce97c3dae91b001060815b18501cc8a66695306

            SHA256

            1a1b05720cd09a630ed51ebceb17e2905bb69abb3f2df4de74922816639bac65

            SHA512

            d54608a2e009d8ef85a6e0ae48994613eec738d7901082a3b1301c2936b5d2344fe28fc1cfd5325cd886303f3a7df85cada4c80ed16a256590b76252810f977a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b30cac28a2f10ed44b377b8d2b0f107c

            SHA1

            dce97c3dae91b001060815b18501cc8a66695306

            SHA256

            1a1b05720cd09a630ed51ebceb17e2905bb69abb3f2df4de74922816639bac65

            SHA512

            d54608a2e009d8ef85a6e0ae48994613eec738d7901082a3b1301c2936b5d2344fe28fc1cfd5325cd886303f3a7df85cada4c80ed16a256590b76252810f977a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            b30cac28a2f10ed44b377b8d2b0f107c

            SHA1

            dce97c3dae91b001060815b18501cc8a66695306

            SHA256

            1a1b05720cd09a630ed51ebceb17e2905bb69abb3f2df4de74922816639bac65

            SHA512

            d54608a2e009d8ef85a6e0ae48994613eec738d7901082a3b1301c2936b5d2344fe28fc1cfd5325cd886303f3a7df85cada4c80ed16a256590b76252810f977a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5bb3334d80c50e8316ffc8f0d3c562f1

            SHA1

            b2ac9260ba2bf6507ba536324461ff8a220db184

            SHA256

            83f63fe7503060319e0311a9f20749035d8a82861a316d9da905414403de6987

            SHA512

            70d39faf01d37df11e81d002f871a5b59077cf519c1f52d31a5ceaf86f28a70258a14e8dbcbe7dd5e47142c811fb43b21ed1a5285a26c4fd98b2eb755c0d5944

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5bb3334d80c50e8316ffc8f0d3c562f1

            SHA1

            b2ac9260ba2bf6507ba536324461ff8a220db184

            SHA256

            83f63fe7503060319e0311a9f20749035d8a82861a316d9da905414403de6987

            SHA512

            70d39faf01d37df11e81d002f871a5b59077cf519c1f52d31a5ceaf86f28a70258a14e8dbcbe7dd5e47142c811fb43b21ed1a5285a26c4fd98b2eb755c0d5944

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            255e8eff8ca888ea36bdfbb37f62d5b3

            SHA1

            7b3f2e371c566479adf5e37cb7e74accd34dc51b

            SHA256

            98c76e9337a965162faa6393d28a9ec5abfc1a1ffdcae311c2e11e0aa2b0ccf9

            SHA512

            45f77001be252bd50eb7f4ea2a90b26401855c77a55de2e54a1f7ff46142b6e83bd49c0cfe52d3ed23f772f4bb75a777f462f08d2734958c14f79b059bb8e751

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c3660869c67cfd9a21634a10dc8ebe93

            SHA1

            502bdb8bc5fbd3b51e318f39584fc3a4d49c9556

            SHA256

            9d8b0695dafd5acc4ccff2776e5e5f0ee98f6d37749476baffd610c2c147e424

            SHA512

            7caf47a023eab1256dcc67ecf6e37d80d3062a365a79c742a9c3fe20091ee3bbc06184ab4226c76d5ff13e9b3bf659d3edf4314b943857438249123397688e42

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3fc04868a74fc20c5f5b08d2320b3c09

            SHA1

            0c2242ca740650591bc2aad95e0d933fc5042c43

            SHA256

            329ddece0d02c2a196915a08b1961c949f74157b999961ab0d351a7bcee8668e

            SHA512

            5d0f370e668edead821dc42104afaf7882ce55df0290598ad8badba87a7bf39a3a72ba9e0abf5d82a607d27f4446be4e91eb5d3aa80f42bd631f5bebda54659d

          • memory/952-57-0x0000000000000000-mapping.dmp

          • memory/1124-80-0x0000000000000000-mapping.dmp

          • memory/1520-87-0x0000000000000000-mapping.dmp

          • memory/1524-76-0x0000000000000000-mapping.dmp

          • memory/1572-64-0x0000000000000000-mapping.dmp

          • memory/1640-61-0x0000000000000000-mapping.dmp

          • memory/1644-81-0x0000000000000000-mapping.dmp

          • memory/1668-54-0x0000000076711000-0x0000000076713000-memory.dmp

            Filesize

            8KB

          • memory/1668-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1668-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1712-62-0x0000000000000000-mapping.dmp

          • memory/1752-58-0x0000000000000000-mapping.dmp

          • memory/1796-70-0x0000000000000000-mapping.dmp

          • memory/1984-86-0x0000000000000000-mapping.dmp