Analysis

  • max time kernel
    147s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:10

General

  • Target

    df1d6985a983e85aeff5396e605632d62b6e9e9b33e4b16fdc27777be7bdfbf6.exe

  • Size

    602KB

  • MD5

    cfd650038684592c14329be063e23dd9

  • SHA1

    178b30fbb7b49759b24b6ff224f1509c66c3968d

  • SHA256

    df1d6985a983e85aeff5396e605632d62b6e9e9b33e4b16fdc27777be7bdfbf6

  • SHA512

    baebe829f1fac5d04853c7635de4226b94aacf63ede096f4c355d0b5f2956f981f57f1bd431e94a1bc6f357697eec5f2249dc24a40b1f577ea5468c6c3f6283e

  • SSDEEP

    12288:mIny5DYTcIgE4TzmU8SrL6jHsvKCcM28It9GYmRRv0xRZiO2Ah:IUTczhPScLkMvKCc18uGjRRviRZ3

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\df1d6985a983e85aeff5396e605632d62b6e9e9b33e4b16fdc27777be7bdfbf6.exe
    "C:\Users\Admin\AppData\Local\Temp\df1d6985a983e85aeff5396e605632d62b6e9e9b33e4b16fdc27777be7bdfbf6.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:2712
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2788
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2952
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:224
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4596
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4212
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3124
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3572
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2264
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4828
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3964
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3272
          • 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:4524
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5060

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss4D28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d688a4d5b35e8b4a152eea8fffb1db38

            SHA1

            858b32edca065c07c70f5ee03a6b335deeecdb61

            SHA256

            1c475eb5f470b69c2f09f137dd99d53fc19bcfb39df8a2f12fcf168348e13d69

            SHA512

            0368a55086c2a8587d3ab7d19ff6590be63a4ea8e3bfa98d909a32a61f574106f37f2e8a7ec34fe18bb75e4a59998aec886fc188d4daea9263034ad9bf339df1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d688a4d5b35e8b4a152eea8fffb1db38

            SHA1

            858b32edca065c07c70f5ee03a6b335deeecdb61

            SHA256

            1c475eb5f470b69c2f09f137dd99d53fc19bcfb39df8a2f12fcf168348e13d69

            SHA512

            0368a55086c2a8587d3ab7d19ff6590be63a4ea8e3bfa98d909a32a61f574106f37f2e8a7ec34fe18bb75e4a59998aec886fc188d4daea9263034ad9bf339df1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d688a4d5b35e8b4a152eea8fffb1db38

            SHA1

            858b32edca065c07c70f5ee03a6b335deeecdb61

            SHA256

            1c475eb5f470b69c2f09f137dd99d53fc19bcfb39df8a2f12fcf168348e13d69

            SHA512

            0368a55086c2a8587d3ab7d19ff6590be63a4ea8e3bfa98d909a32a61f574106f37f2e8a7ec34fe18bb75e4a59998aec886fc188d4daea9263034ad9bf339df1

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d688a4d5b35e8b4a152eea8fffb1db38

            SHA1

            858b32edca065c07c70f5ee03a6b335deeecdb61

            SHA256

            1c475eb5f470b69c2f09f137dd99d53fc19bcfb39df8a2f12fcf168348e13d69

            SHA512

            0368a55086c2a8587d3ab7d19ff6590be63a4ea8e3bfa98d909a32a61f574106f37f2e8a7ec34fe18bb75e4a59998aec886fc188d4daea9263034ad9bf339df1

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a43371d3fde589a6e57ad00247bd9a42

            SHA1

            4d9bed1e2db3ecf55e87edd49020032dd96c17d5

            SHA256

            40547f278876a4139580d994637e1d6371bac938d04868ef0b666f75a9d2f0b7

            SHA512

            5782c1f88ab51a3679d9c108e223dcd8210d36aee35c2819eaeb1a3bcc949ec59520c0c8ec448bc06887f1f383719971b53aef48cfb78d6b930564b057818171

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a43371d3fde589a6e57ad00247bd9a42

            SHA1

            4d9bed1e2db3ecf55e87edd49020032dd96c17d5

            SHA256

            40547f278876a4139580d994637e1d6371bac938d04868ef0b666f75a9d2f0b7

            SHA512

            5782c1f88ab51a3679d9c108e223dcd8210d36aee35c2819eaeb1a3bcc949ec59520c0c8ec448bc06887f1f383719971b53aef48cfb78d6b930564b057818171

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a43371d3fde589a6e57ad00247bd9a42

            SHA1

            4d9bed1e2db3ecf55e87edd49020032dd96c17d5

            SHA256

            40547f278876a4139580d994637e1d6371bac938d04868ef0b666f75a9d2f0b7

            SHA512

            5782c1f88ab51a3679d9c108e223dcd8210d36aee35c2819eaeb1a3bcc949ec59520c0c8ec448bc06887f1f383719971b53aef48cfb78d6b930564b057818171

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            55181a78c50db632bc9fdf0f4b744c76

            SHA1

            34ec25521803c8abf99273733f8a29e42d74aefd

            SHA256

            b64dbad150804d672822df86aecbd394b752555e32f2fd9e7f0b0ac9381d97ef

            SHA512

            8ad60e069d09045947843414bf92fcdd68aca2553c4d7a30c26a4817637e1c82514f5eed639bc091d5c3fd72ed4008736fa10e65e079646fec8af565d4dc2f30

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            55181a78c50db632bc9fdf0f4b744c76

            SHA1

            34ec25521803c8abf99273733f8a29e42d74aefd

            SHA256

            b64dbad150804d672822df86aecbd394b752555e32f2fd9e7f0b0ac9381d97ef

            SHA512

            8ad60e069d09045947843414bf92fcdd68aca2553c4d7a30c26a4817637e1c82514f5eed639bc091d5c3fd72ed4008736fa10e65e079646fec8af565d4dc2f30

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1751f13af510c18ff7d2ca9b4c347840

            SHA1

            fd3f27bca5c0f28319d6b03ef9185df79a971f84

            SHA256

            eb3218dde02ff243db3be16b72721d79370d3161a1d91f7f3b1f266cff17b8da

            SHA512

            517c93a38813895073ab6c85b3480eda5f762e49b8a666a5d0d909aeb90c2b2922d505d9b2fe066ae8742686ad49f18deed60277d1aea2751c02f0d8e1b40a95

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1751f13af510c18ff7d2ca9b4c347840

            SHA1

            fd3f27bca5c0f28319d6b03ef9185df79a971f84

            SHA256

            eb3218dde02ff243db3be16b72721d79370d3161a1d91f7f3b1f266cff17b8da

            SHA512

            517c93a38813895073ab6c85b3480eda5f762e49b8a666a5d0d909aeb90c2b2922d505d9b2fe066ae8742686ad49f18deed60277d1aea2751c02f0d8e1b40a95

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1751f13af510c18ff7d2ca9b4c347840

            SHA1

            fd3f27bca5c0f28319d6b03ef9185df79a971f84

            SHA256

            eb3218dde02ff243db3be16b72721d79370d3161a1d91f7f3b1f266cff17b8da

            SHA512

            517c93a38813895073ab6c85b3480eda5f762e49b8a666a5d0d909aeb90c2b2922d505d9b2fe066ae8742686ad49f18deed60277d1aea2751c02f0d8e1b40a95

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            025ed89939b99ce177a72bf0f6306f1f

            SHA1

            470e2afb21411ed765b6ad3d70f7b1459295284c

            SHA256

            689a94b00fd5adf4d6234ae1d27e92ee85a7d7455ed7a2e9962480d0266e2297

            SHA512

            009fce4f7379f1a45280476fa9f65be1c6aea96daaefa5bb47b3d2496d363da9a2ec53f5e1740470ba22c2515845d4b57f2b5092f1b99539716e174eaaab6c32

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            025ed89939b99ce177a72bf0f6306f1f

            SHA1

            470e2afb21411ed765b6ad3d70f7b1459295284c

            SHA256

            689a94b00fd5adf4d6234ae1d27e92ee85a7d7455ed7a2e9962480d0266e2297

            SHA512

            009fce4f7379f1a45280476fa9f65be1c6aea96daaefa5bb47b3d2496d363da9a2ec53f5e1740470ba22c2515845d4b57f2b5092f1b99539716e174eaaab6c32

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            025ed89939b99ce177a72bf0f6306f1f

            SHA1

            470e2afb21411ed765b6ad3d70f7b1459295284c

            SHA256

            689a94b00fd5adf4d6234ae1d27e92ee85a7d7455ed7a2e9962480d0266e2297

            SHA512

            009fce4f7379f1a45280476fa9f65be1c6aea96daaefa5bb47b3d2496d363da9a2ec53f5e1740470ba22c2515845d4b57f2b5092f1b99539716e174eaaab6c32

          • memory/224-140-0x0000000000000000-mapping.dmp

          • memory/2264-158-0x0000000000000000-mapping.dmp

          • memory/2712-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2712-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2788-136-0x0000000000000000-mapping.dmp

          • memory/2952-137-0x0000000000000000-mapping.dmp

          • memory/3124-147-0x0000000000000000-mapping.dmp

          • memory/3272-166-0x0000000000000000-mapping.dmp

          • memory/3572-153-0x0000000000000000-mapping.dmp

          • memory/3964-165-0x0000000000000000-mapping.dmp

          • memory/4212-142-0x0000000000000000-mapping.dmp

          • memory/4596-141-0x0000000000000000-mapping.dmp

          • memory/4828-159-0x0000000000000000-mapping.dmp