Analysis

  • max time kernel
    175s
  • max time network
    187s
  • 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 10:30

General

  • Target

    29a87996985b6981df3009e30eaeede1ce0a92f8b41b1cd36e69dae113ddeb1d.exe

  • Size

    602KB

  • MD5

    39c3b526983181afa824d57c84cada8a

  • SHA1

    a7246bc9d28a60a351f260588da9e038f36cc93e

  • SHA256

    29a87996985b6981df3009e30eaeede1ce0a92f8b41b1cd36e69dae113ddeb1d

  • SHA512

    e0cfd168284e13a3db1842cf783b76da54213bc05037311ec24cd1716c4e7cec825d51acf98f1aecce9df27cf9f6c1024687932fe3287062c823571d6abe12a0

  • SSDEEP

    12288:3Iny5DYTSITwtn2r3bmDpAW7opC5W6yf4vMSqY181EifG:fUTS4g2r3BOTWnup81EiO

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\29a87996985b6981df3009e30eaeede1ce0a92f8b41b1cd36e69dae113ddeb1d.exe
    "C:\Users\Admin\AppData\Local\Temp\29a87996985b6981df3009e30eaeede1ce0a92f8b41b1cd36e69dae113ddeb1d.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:1324
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2724
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2572
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4288
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3640
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3660
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1956
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4900
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4756
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3460
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1336
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4260
          • 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:3604
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4924

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nse2C80.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d0893021eedc0fc7ff629bb2e719504d

            SHA1

            5d95893abf55c9826ee5f65e1123e19a71bbca7b

            SHA256

            7b5a4ba9a9d654071fd3174bc35d2c284fdfb1bdcd317f1764a17d14deca164c

            SHA512

            4a2a07383d357414ec420de953085d01ec9849230bb018ff06dba379b340da29d99e113d3bf408db3c0d2825b72587c1d68eab362849eb4dfefc92b3c970e99d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d0893021eedc0fc7ff629bb2e719504d

            SHA1

            5d95893abf55c9826ee5f65e1123e19a71bbca7b

            SHA256

            7b5a4ba9a9d654071fd3174bc35d2c284fdfb1bdcd317f1764a17d14deca164c

            SHA512

            4a2a07383d357414ec420de953085d01ec9849230bb018ff06dba379b340da29d99e113d3bf408db3c0d2825b72587c1d68eab362849eb4dfefc92b3c970e99d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d0893021eedc0fc7ff629bb2e719504d

            SHA1

            5d95893abf55c9826ee5f65e1123e19a71bbca7b

            SHA256

            7b5a4ba9a9d654071fd3174bc35d2c284fdfb1bdcd317f1764a17d14deca164c

            SHA512

            4a2a07383d357414ec420de953085d01ec9849230bb018ff06dba379b340da29d99e113d3bf408db3c0d2825b72587c1d68eab362849eb4dfefc92b3c970e99d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d0893021eedc0fc7ff629bb2e719504d

            SHA1

            5d95893abf55c9826ee5f65e1123e19a71bbca7b

            SHA256

            7b5a4ba9a9d654071fd3174bc35d2c284fdfb1bdcd317f1764a17d14deca164c

            SHA512

            4a2a07383d357414ec420de953085d01ec9849230bb018ff06dba379b340da29d99e113d3bf408db3c0d2825b72587c1d68eab362849eb4dfefc92b3c970e99d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8598405dd237ef9aef3874717c05b2c3

            SHA1

            70ab88765f2eb28aa1addaede6879d4b26c71308

            SHA256

            e4c82e12d22cd0c710e3355d8dd988716d796c5a887aaa509982fbda7fab27c2

            SHA512

            fff5306e72f90cb17a1b060678069abc2d87205ece0120bf0d91aaaec6b02638809274af9a80f859118101ca2e6bf303272879e2a9b640081ec241f7c39200a6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8598405dd237ef9aef3874717c05b2c3

            SHA1

            70ab88765f2eb28aa1addaede6879d4b26c71308

            SHA256

            e4c82e12d22cd0c710e3355d8dd988716d796c5a887aaa509982fbda7fab27c2

            SHA512

            fff5306e72f90cb17a1b060678069abc2d87205ece0120bf0d91aaaec6b02638809274af9a80f859118101ca2e6bf303272879e2a9b640081ec241f7c39200a6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8598405dd237ef9aef3874717c05b2c3

            SHA1

            70ab88765f2eb28aa1addaede6879d4b26c71308

            SHA256

            e4c82e12d22cd0c710e3355d8dd988716d796c5a887aaa509982fbda7fab27c2

            SHA512

            fff5306e72f90cb17a1b060678069abc2d87205ece0120bf0d91aaaec6b02638809274af9a80f859118101ca2e6bf303272879e2a9b640081ec241f7c39200a6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            02af7bfa41d0335e87822f19e713c530

            SHA1

            d5188c321f4fbdac491d4c9678ac54a3dfcc0ff3

            SHA256

            382f00e0aaa784b10a790a30610b996019a8757d6d1180dc3cb870ed624292cc

            SHA512

            6c3213090808e2c4480cef250e30bafa73eddb4562a937e8d401fac2bde8b1d18697efe8e5637ab2ba502b954e85808f6614889dc382e92c6180e47dd65c1e40

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            02af7bfa41d0335e87822f19e713c530

            SHA1

            d5188c321f4fbdac491d4c9678ac54a3dfcc0ff3

            SHA256

            382f00e0aaa784b10a790a30610b996019a8757d6d1180dc3cb870ed624292cc

            SHA512

            6c3213090808e2c4480cef250e30bafa73eddb4562a937e8d401fac2bde8b1d18697efe8e5637ab2ba502b954e85808f6614889dc382e92c6180e47dd65c1e40

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e8ebc026e6c02b2b1457d4ae3017842e

            SHA1

            feadf067c8a67f4b8d251d0835891b7ebf5dab8f

            SHA256

            cad0230e145e9ed9153fe70300fc8ddaf9b4aee4f7d37ec4715d3a7e3c8bcac2

            SHA512

            84cfed0c0273e025269f68e475cdaf05459ee9acf71799cae558862ca831d94a18f1f9318cb680b99846c73e6f96e4167395f9ba4fcf897160b3c4e4242d08fb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e8ebc026e6c02b2b1457d4ae3017842e

            SHA1

            feadf067c8a67f4b8d251d0835891b7ebf5dab8f

            SHA256

            cad0230e145e9ed9153fe70300fc8ddaf9b4aee4f7d37ec4715d3a7e3c8bcac2

            SHA512

            84cfed0c0273e025269f68e475cdaf05459ee9acf71799cae558862ca831d94a18f1f9318cb680b99846c73e6f96e4167395f9ba4fcf897160b3c4e4242d08fb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e8ebc026e6c02b2b1457d4ae3017842e

            SHA1

            feadf067c8a67f4b8d251d0835891b7ebf5dab8f

            SHA256

            cad0230e145e9ed9153fe70300fc8ddaf9b4aee4f7d37ec4715d3a7e3c8bcac2

            SHA512

            84cfed0c0273e025269f68e475cdaf05459ee9acf71799cae558862ca831d94a18f1f9318cb680b99846c73e6f96e4167395f9ba4fcf897160b3c4e4242d08fb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cc285bfd5cc53f3f105e16ae38e24c2

            SHA1

            2414dd82a7f079efb7b3c93022d4bc7dabe7d0e8

            SHA256

            1fb03b3fe0f23525a75934da15e02976a2abe4b077a7523a2291641fc9130f6b

            SHA512

            107ef77c6ab6f1780e6d046102878be7ad909840d48fdb3c6b3e975748666df48a1d633344f15bd4e42c8bafb91459fb63abf7ad0ab55b52e8330cbc303459f4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cc285bfd5cc53f3f105e16ae38e24c2

            SHA1

            2414dd82a7f079efb7b3c93022d4bc7dabe7d0e8

            SHA256

            1fb03b3fe0f23525a75934da15e02976a2abe4b077a7523a2291641fc9130f6b

            SHA512

            107ef77c6ab6f1780e6d046102878be7ad909840d48fdb3c6b3e975748666df48a1d633344f15bd4e42c8bafb91459fb63abf7ad0ab55b52e8330cbc303459f4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            8cc285bfd5cc53f3f105e16ae38e24c2

            SHA1

            2414dd82a7f079efb7b3c93022d4bc7dabe7d0e8

            SHA256

            1fb03b3fe0f23525a75934da15e02976a2abe4b077a7523a2291641fc9130f6b

            SHA512

            107ef77c6ab6f1780e6d046102878be7ad909840d48fdb3c6b3e975748666df48a1d633344f15bd4e42c8bafb91459fb63abf7ad0ab55b52e8330cbc303459f4

          • memory/1324-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1324-133-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1336-165-0x0000000000000000-mapping.dmp

          • memory/1956-147-0x0000000000000000-mapping.dmp

          • memory/2572-137-0x0000000000000000-mapping.dmp

          • memory/2724-136-0x0000000000000000-mapping.dmp

          • memory/3460-159-0x0000000000000000-mapping.dmp

          • memory/3640-141-0x0000000000000000-mapping.dmp

          • memory/3660-142-0x0000000000000000-mapping.dmp

          • memory/4260-166-0x0000000000000000-mapping.dmp

          • memory/4288-140-0x0000000000000000-mapping.dmp

          • memory/4756-158-0x0000000000000000-mapping.dmp

          • memory/4900-153-0x0000000000000000-mapping.dmp