Analysis

  • max time kernel
    63s
  • max time network
    32s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:23

General

  • Target

    70bfbf8aafe30b59df8ea583e6d7e4c46a606ed954ce92eba1dd795374797258.exe

  • Size

    603KB

  • MD5

    0c72a05bcd676bf670fca90dc3c6b17c

  • SHA1

    ccc6dc57b2e4d7a788ceaa24047964f9b653a30b

  • SHA256

    70bfbf8aafe30b59df8ea583e6d7e4c46a606ed954ce92eba1dd795374797258

  • SHA512

    b26bbac732232d24fb88c20e13e9596be749fbbd9f4c1ff88838ff1cab8afe32fa8020abea7b96a8796443c7f1caa1b34eab92e48e50b1d7cc68d750d0987b96

  • SSDEEP

    12288:LIny5DYTj/RFMmyEAtLAuSx0PYLVixaWXcuG:zUTrRSmatgxRViNG

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\70bfbf8aafe30b59df8ea583e6d7e4c46a606ed954ce92eba1dd795374797258.exe
    "C:\Users\Admin\AppData\Local\Temp\70bfbf8aafe30b59df8ea583e6d7e4c46a606ed954ce92eba1dd795374797258.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:316
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1312
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1216
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:468
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1300
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1952
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:544
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:828
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1656
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1812
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1852
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1772
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2036
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1252

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            437415231dc4d2927c876dd61138eb68

            SHA1

            6695cb1fccb8f0d2d4e2c4b977f03dc98b57309a

            SHA256

            82aa2027d3b6f90c53cd9b7eb132d9f4dd5560942b0d08d9a36d485537161a63

            SHA512

            912ed736e3973e0b6b1527d3c2a4f3f8d431a13d31efc74817ffbf0c3375ca0bfb332f8534ed1d1768bdafce2548d3fa669baf8a035dfd5bcf552d8a57181e93

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            96af2016a9badb846188d35c4609a37a

            SHA1

            344d3312986f8fe6afd18287cde6e4d6dcea260d

            SHA256

            2b434caf422e3ed2186247be9e7051d0796c9e55791d7d7e7e334ab3cf8f1b5d

            SHA512

            fc87a271dc275a9c2db6b10e0673955553ebadacd61686a983f30433a3c7de02d5665b7e262e27fe58f570a583a06ce9d284f57d0b6572a4c0d70ba4edace4ff

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b8e499d3dc86c55c89deb66a6f1fdc56

            SHA1

            f0daf77160f4c92f02c2b379de96782ca34f9c3f

            SHA256

            9d5a86ea05513e0d7b02770234bb799ea47b7c25f309b6f554b5e4e8a352b292

            SHA512

            0dc262ab33a3b2777e6b6384792749149a4cc7891bbf1a3205b0214ca69f79934e49e91edf8177d390d4b0771e97420c3217edfabde02e644f06cea50af5fa54

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2429271face6cfd851cd748a9b139267

            SHA1

            519309f06d41cbc23f9c03ce5799a9f1ac3496ff

            SHA256

            d56cafe4233ae70ac8a89ef9d02427e33cb64ebf508e8664d1de7e01e73b300e

            SHA512

            6f522369c79cfed84bc2c0b9ac8dde75feb51602ac84a255a3ff9faea926dac31388d012a54da1c5425b43ea2a068d99ee77a20db8bbafd0583d08a8fec496d1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2429271face6cfd851cd748a9b139267

            SHA1

            519309f06d41cbc23f9c03ce5799a9f1ac3496ff

            SHA256

            d56cafe4233ae70ac8a89ef9d02427e33cb64ebf508e8664d1de7e01e73b300e

            SHA512

            6f522369c79cfed84bc2c0b9ac8dde75feb51602ac84a255a3ff9faea926dac31388d012a54da1c5425b43ea2a068d99ee77a20db8bbafd0583d08a8fec496d1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6b4e5da84f6586909fc9b4903e21e5ae

            SHA1

            dc8ae066aff1b1c585e62d02e580b5f5eb6e014a

            SHA256

            9375eb636299f3e1a8dd97b2169fb4564baef6e29048e63920c780bf2b173b68

            SHA512

            03740bc1228955a81ee0fb3ca01478bd2fd465141556979b968360c293ae4196f75d463c8b9d6b772de567b2399be8808f7c1b8a6ae14f41db10a507a7853404

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6b4e5da84f6586909fc9b4903e21e5ae

            SHA1

            dc8ae066aff1b1c585e62d02e580b5f5eb6e014a

            SHA256

            9375eb636299f3e1a8dd97b2169fb4564baef6e29048e63920c780bf2b173b68

            SHA512

            03740bc1228955a81ee0fb3ca01478bd2fd465141556979b968360c293ae4196f75d463c8b9d6b772de567b2399be8808f7c1b8a6ae14f41db10a507a7853404

          • \Users\Admin\AppData\Local\Temp\nsoD80A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoD80A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoD80A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoD80A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoD80A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            437415231dc4d2927c876dd61138eb68

            SHA1

            6695cb1fccb8f0d2d4e2c4b977f03dc98b57309a

            SHA256

            82aa2027d3b6f90c53cd9b7eb132d9f4dd5560942b0d08d9a36d485537161a63

            SHA512

            912ed736e3973e0b6b1527d3c2a4f3f8d431a13d31efc74817ffbf0c3375ca0bfb332f8534ed1d1768bdafce2548d3fa669baf8a035dfd5bcf552d8a57181e93

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            437415231dc4d2927c876dd61138eb68

            SHA1

            6695cb1fccb8f0d2d4e2c4b977f03dc98b57309a

            SHA256

            82aa2027d3b6f90c53cd9b7eb132d9f4dd5560942b0d08d9a36d485537161a63

            SHA512

            912ed736e3973e0b6b1527d3c2a4f3f8d431a13d31efc74817ffbf0c3375ca0bfb332f8534ed1d1768bdafce2548d3fa669baf8a035dfd5bcf552d8a57181e93

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            437415231dc4d2927c876dd61138eb68

            SHA1

            6695cb1fccb8f0d2d4e2c4b977f03dc98b57309a

            SHA256

            82aa2027d3b6f90c53cd9b7eb132d9f4dd5560942b0d08d9a36d485537161a63

            SHA512

            912ed736e3973e0b6b1527d3c2a4f3f8d431a13d31efc74817ffbf0c3375ca0bfb332f8534ed1d1768bdafce2548d3fa669baf8a035dfd5bcf552d8a57181e93

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            96af2016a9badb846188d35c4609a37a

            SHA1

            344d3312986f8fe6afd18287cde6e4d6dcea260d

            SHA256

            2b434caf422e3ed2186247be9e7051d0796c9e55791d7d7e7e334ab3cf8f1b5d

            SHA512

            fc87a271dc275a9c2db6b10e0673955553ebadacd61686a983f30433a3c7de02d5665b7e262e27fe58f570a583a06ce9d284f57d0b6572a4c0d70ba4edace4ff

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            96af2016a9badb846188d35c4609a37a

            SHA1

            344d3312986f8fe6afd18287cde6e4d6dcea260d

            SHA256

            2b434caf422e3ed2186247be9e7051d0796c9e55791d7d7e7e334ab3cf8f1b5d

            SHA512

            fc87a271dc275a9c2db6b10e0673955553ebadacd61686a983f30433a3c7de02d5665b7e262e27fe58f570a583a06ce9d284f57d0b6572a4c0d70ba4edace4ff

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            b8e499d3dc86c55c89deb66a6f1fdc56

            SHA1

            f0daf77160f4c92f02c2b379de96782ca34f9c3f

            SHA256

            9d5a86ea05513e0d7b02770234bb799ea47b7c25f309b6f554b5e4e8a352b292

            SHA512

            0dc262ab33a3b2777e6b6384792749149a4cc7891bbf1a3205b0214ca69f79934e49e91edf8177d390d4b0771e97420c3217edfabde02e644f06cea50af5fa54

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2429271face6cfd851cd748a9b139267

            SHA1

            519309f06d41cbc23f9c03ce5799a9f1ac3496ff

            SHA256

            d56cafe4233ae70ac8a89ef9d02427e33cb64ebf508e8664d1de7e01e73b300e

            SHA512

            6f522369c79cfed84bc2c0b9ac8dde75feb51602ac84a255a3ff9faea926dac31388d012a54da1c5425b43ea2a068d99ee77a20db8bbafd0583d08a8fec496d1

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            6b4e5da84f6586909fc9b4903e21e5ae

            SHA1

            dc8ae066aff1b1c585e62d02e580b5f5eb6e014a

            SHA256

            9375eb636299f3e1a8dd97b2169fb4564baef6e29048e63920c780bf2b173b68

            SHA512

            03740bc1228955a81ee0fb3ca01478bd2fd465141556979b968360c293ae4196f75d463c8b9d6b772de567b2399be8808f7c1b8a6ae14f41db10a507a7853404

          • memory/316-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/316-54-0x00000000765A1000-0x00000000765A3000-memory.dmp

            Filesize

            8KB

          • memory/316-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/468-61-0x0000000000000000-mapping.dmp

          • memory/544-70-0x0000000000000000-mapping.dmp

          • memory/828-76-0x0000000000000000-mapping.dmp

          • memory/1216-59-0x0000000000000000-mapping.dmp

          • memory/1300-62-0x0000000000000000-mapping.dmp

          • memory/1312-58-0x0000000000000000-mapping.dmp

          • memory/1656-80-0x0000000000000000-mapping.dmp

          • memory/1772-87-0x0000000000000000-mapping.dmp

          • memory/1812-81-0x0000000000000000-mapping.dmp

          • memory/1852-86-0x0000000000000000-mapping.dmp

          • memory/1952-64-0x0000000000000000-mapping.dmp