Analysis

  • max time kernel
    150s
  • max time network
    175s
  • 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 10:28

General

  • Target

    3e8f2b1b8058bceacfa096b989e7a9379f3010db47e45f390278173db79aee1f.exe

  • Size

    602KB

  • MD5

    7b3c257370348ba955730108a687fc48

  • SHA1

    de162f4793a18ff3625463dc86e19839296d2c01

  • SHA256

    3e8f2b1b8058bceacfa096b989e7a9379f3010db47e45f390278173db79aee1f

  • SHA512

    3a85e73ca23f89263aa60315bdf47ff9f94288bf7e641f5908ad4f4ba62af8f47d5749a2204c4c95cdece662bea4e1c32c504db38430e8aeb813e5d93f3f831d

  • SSDEEP

    12288:vIny5DYTkIRegguiVCgLJr49aHky/S2sGvdI7j5e4m4cu:3UTkeegguMCTaHA2sGvyjw

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\3e8f2b1b8058bceacfa096b989e7a9379f3010db47e45f390278173db79aee1f.exe
    "C:\Users\Admin\AppData\Local\Temp\3e8f2b1b8058bceacfa096b989e7a9379f3010db47e45f390278173db79aee1f.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:1184
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:684
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4776
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3760
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1516
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3088
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1864
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1592
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2920
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2664
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2684
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1100
          • 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:4120
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:548

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nshE621.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            275843bf6e2ce45b00100bc9fe4c7a16

            SHA1

            288df2e464f9bba0dd0e9eb1d41d586c5c3148e8

            SHA256

            45099755948ebbc9dfb2577ae3fab9ca784e884f2ae90316b77ffd04dc5d1af6

            SHA512

            069e512ff086071ee5dbcdf3c972a231b04f1b1901de04281bb199d3f8fd82445bb81b220b461182e9f522868fb208d2cc5bcf7e41c1e55eda75a3136879a9a4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            275843bf6e2ce45b00100bc9fe4c7a16

            SHA1

            288df2e464f9bba0dd0e9eb1d41d586c5c3148e8

            SHA256

            45099755948ebbc9dfb2577ae3fab9ca784e884f2ae90316b77ffd04dc5d1af6

            SHA512

            069e512ff086071ee5dbcdf3c972a231b04f1b1901de04281bb199d3f8fd82445bb81b220b461182e9f522868fb208d2cc5bcf7e41c1e55eda75a3136879a9a4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            275843bf6e2ce45b00100bc9fe4c7a16

            SHA1

            288df2e464f9bba0dd0e9eb1d41d586c5c3148e8

            SHA256

            45099755948ebbc9dfb2577ae3fab9ca784e884f2ae90316b77ffd04dc5d1af6

            SHA512

            069e512ff086071ee5dbcdf3c972a231b04f1b1901de04281bb199d3f8fd82445bb81b220b461182e9f522868fb208d2cc5bcf7e41c1e55eda75a3136879a9a4

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            275843bf6e2ce45b00100bc9fe4c7a16

            SHA1

            288df2e464f9bba0dd0e9eb1d41d586c5c3148e8

            SHA256

            45099755948ebbc9dfb2577ae3fab9ca784e884f2ae90316b77ffd04dc5d1af6

            SHA512

            069e512ff086071ee5dbcdf3c972a231b04f1b1901de04281bb199d3f8fd82445bb81b220b461182e9f522868fb208d2cc5bcf7e41c1e55eda75a3136879a9a4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e5aca9df1a0bba84f54eed670c154a69

            SHA1

            8a0ba3cc6b4cee9a9e033a411ab736a548eae682

            SHA256

            f94423a4a6b78d7bac228aaf2ecbfe9b979887cead792c8979a21e98623ce5bb

            SHA512

            0b234483aa68314f9d8c8a8b05e7a4bcc3afd00d7248b955865c43ce09a503958eddf2750aa6488e65f9c48b3b70c3f0f71cae70b859168e3d996033e952c73e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e5aca9df1a0bba84f54eed670c154a69

            SHA1

            8a0ba3cc6b4cee9a9e033a411ab736a548eae682

            SHA256

            f94423a4a6b78d7bac228aaf2ecbfe9b979887cead792c8979a21e98623ce5bb

            SHA512

            0b234483aa68314f9d8c8a8b05e7a4bcc3afd00d7248b955865c43ce09a503958eddf2750aa6488e65f9c48b3b70c3f0f71cae70b859168e3d996033e952c73e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e5aca9df1a0bba84f54eed670c154a69

            SHA1

            8a0ba3cc6b4cee9a9e033a411ab736a548eae682

            SHA256

            f94423a4a6b78d7bac228aaf2ecbfe9b979887cead792c8979a21e98623ce5bb

            SHA512

            0b234483aa68314f9d8c8a8b05e7a4bcc3afd00d7248b955865c43ce09a503958eddf2750aa6488e65f9c48b3b70c3f0f71cae70b859168e3d996033e952c73e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            15ea4e45795f5a395b61e3f4684d9a1d

            SHA1

            7137de3010a56d1a5992974d26b2863d1667e7e5

            SHA256

            95471bf55256e11e42f9aa0efdfc1d522c7dfe7ea2ea9279f63df847b59e1d8d

            SHA512

            b8b061265f97715fe48bbccf1ffd21d206625a8d3628b26e2c163b62eb9f90ef7747ba6a618e882b4bb2a892d0e5f8cf0592cf117c914e41ceccf774021891c4

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            15ea4e45795f5a395b61e3f4684d9a1d

            SHA1

            7137de3010a56d1a5992974d26b2863d1667e7e5

            SHA256

            95471bf55256e11e42f9aa0efdfc1d522c7dfe7ea2ea9279f63df847b59e1d8d

            SHA512

            b8b061265f97715fe48bbccf1ffd21d206625a8d3628b26e2c163b62eb9f90ef7747ba6a618e882b4bb2a892d0e5f8cf0592cf117c914e41ceccf774021891c4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ec3603e3e3e9940f8b67a7de9cda7566

            SHA1

            1bfe969295c205d45e295fe53d2c0ee5fdab57b5

            SHA256

            66615a469e2126818ba6899e4cb19e9a69b77967c0ecdb0dd6173fc62c450312

            SHA512

            ecf70c2707138090495fadba8176fe58a53eeb942afa5cb3c18c6301348a276956edd0a44d67321f94ffbe9aadef87cc4f13f89d767cdad1edaa64bde29b671c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ec3603e3e3e9940f8b67a7de9cda7566

            SHA1

            1bfe969295c205d45e295fe53d2c0ee5fdab57b5

            SHA256

            66615a469e2126818ba6899e4cb19e9a69b77967c0ecdb0dd6173fc62c450312

            SHA512

            ecf70c2707138090495fadba8176fe58a53eeb942afa5cb3c18c6301348a276956edd0a44d67321f94ffbe9aadef87cc4f13f89d767cdad1edaa64bde29b671c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ec3603e3e3e9940f8b67a7de9cda7566

            SHA1

            1bfe969295c205d45e295fe53d2c0ee5fdab57b5

            SHA256

            66615a469e2126818ba6899e4cb19e9a69b77967c0ecdb0dd6173fc62c450312

            SHA512

            ecf70c2707138090495fadba8176fe58a53eeb942afa5cb3c18c6301348a276956edd0a44d67321f94ffbe9aadef87cc4f13f89d767cdad1edaa64bde29b671c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d7653e40f21a0ccbef9930d392b9d2b7

            SHA1

            50d2d318463d4d1825993de8777eec4083d274cb

            SHA256

            0c3ce73f9f562e6b94e470a1f20907174e4f2204660e462c8472ead099d0a80a

            SHA512

            e0efcd036056946d0a82975977a88d4752f0c28990847ebe06694378a9b8e59deed0b8e671df17167f8aed5dcb22c060edf210be1bae86a238410a0c434c36ae

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d7653e40f21a0ccbef9930d392b9d2b7

            SHA1

            50d2d318463d4d1825993de8777eec4083d274cb

            SHA256

            0c3ce73f9f562e6b94e470a1f20907174e4f2204660e462c8472ead099d0a80a

            SHA512

            e0efcd036056946d0a82975977a88d4752f0c28990847ebe06694378a9b8e59deed0b8e671df17167f8aed5dcb22c060edf210be1bae86a238410a0c434c36ae

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d7653e40f21a0ccbef9930d392b9d2b7

            SHA1

            50d2d318463d4d1825993de8777eec4083d274cb

            SHA256

            0c3ce73f9f562e6b94e470a1f20907174e4f2204660e462c8472ead099d0a80a

            SHA512

            e0efcd036056946d0a82975977a88d4752f0c28990847ebe06694378a9b8e59deed0b8e671df17167f8aed5dcb22c060edf210be1bae86a238410a0c434c36ae

          • memory/684-136-0x0000000000000000-mapping.dmp

          • memory/1100-166-0x0000000000000000-mapping.dmp

          • memory/1184-135-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1184-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1516-141-0x0000000000000000-mapping.dmp

          • memory/1592-153-0x0000000000000000-mapping.dmp

          • memory/1864-147-0x0000000000000000-mapping.dmp

          • memory/2664-159-0x0000000000000000-mapping.dmp

          • memory/2684-165-0x0000000000000000-mapping.dmp

          • memory/2920-158-0x0000000000000000-mapping.dmp

          • memory/3088-142-0x0000000000000000-mapping.dmp

          • memory/3760-140-0x0000000000000000-mapping.dmp

          • memory/4776-137-0x0000000000000000-mapping.dmp