Analysis

  • max time kernel
    47s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:17

General

  • Target

    9fd21b39f48beb76659f795b4050c173e513004eb79f91e2573858f439db1ca5.exe

  • Size

    602KB

  • MD5

    02e045ff7ffab0b0b17e1cedfdd311e6

  • SHA1

    f790fb3bed9da84fc08dd9ed1b33e0341b8d779d

  • SHA256

    9fd21b39f48beb76659f795b4050c173e513004eb79f91e2573858f439db1ca5

  • SHA512

    9ad05924df6e44a4a7ccf4e4f08f00d04dabb2961b4a8acdb62ec6f077605331adb4942ba7ca6f61b035752e9e9f61dd5cc8beb64aa56b38dafd9becc9b2ef01

  • SSDEEP

    12288:iIny5DYTuPmWSxqwShy35rVsTTQ/gmBpHy8kF5E75:EUTuPmWtW5ZsT8/BBpz

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\9fd21b39f48beb76659f795b4050c173e513004eb79f91e2573858f439db1ca5.exe
    "C:\Users\Admin\AppData\Local\Temp\9fd21b39f48beb76659f795b4050c173e513004eb79f91e2573858f439db1ca5.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:2016
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1964
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1000
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1044
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:268
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:328
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1900
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1708
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1164
          • 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:628
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1160
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1804
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1636

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a45ee1ac84205de1bb0cab9ef77a6ee

            SHA1

            6962bf5ac581bdef3afcdb2802cbfdb257545d84

            SHA256

            d70418547cb1ce11c8f29ac5503a5d1081cd4edaf8e398283c4b17c21c4b445d

            SHA512

            4401ad803ab89d74e124fd890e94a3d198b685a28275dc9fe379314d6489a8c3c7cf7b830d14c94cd0be8c57848a84a566daa4a54e64e41c125230db0bf9198a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a8f897eb313f41575112cb8168b39e1b

            SHA1

            d4d7e7235bcefe5b8fc5bd108b9bfc93f4a92fe2

            SHA256

            4613e07f605b2809fd9b84702d4133b449328fa8230bf08fed142fbcda30e40a

            SHA512

            d75a23dba21d5d215347faa370c792594592c960986ac67870700017dd96c923ba938452989351f66b3759f2ec9409405f0624c6c008238328f17fef5c384f9d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3e62033c9b81297d3ac94ebcfdd241f2

            SHA1

            e803e47c12081493d0b37a383a3c133af6ec3c58

            SHA256

            5e0968edfb7a943acb80bf526e7d45049db8f49d6bb7c905381d3ab5a69c9273

            SHA512

            576388a611d08bff92f869db14272d620c7e4dcbfc1f3b55fff46177d443c46494da25cf28b9dc3bf5b940be7aa3cf04281f696d2f70b081e7af144111e1ecee

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fb62b1c0944d03f0b53109e1e126bafc

            SHA1

            55354838b3b0e74b132bdb0737aa5423bf38bd0c

            SHA256

            443acc1be5fd12969d4194d12afb2672d6c6556413afac95775cd4452e00de6d

            SHA512

            d132c7083f741f01b77c2b4ca24f4e2c604356e79982c97a30e398ee4045e9b7fdfb949398186b2124a19d6004b7d6d4972f8b554a6855c1ddf723a75677c48f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fb62b1c0944d03f0b53109e1e126bafc

            SHA1

            55354838b3b0e74b132bdb0737aa5423bf38bd0c

            SHA256

            443acc1be5fd12969d4194d12afb2672d6c6556413afac95775cd4452e00de6d

            SHA512

            d132c7083f741f01b77c2b4ca24f4e2c604356e79982c97a30e398ee4045e9b7fdfb949398186b2124a19d6004b7d6d4972f8b554a6855c1ddf723a75677c48f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            617e334a3c9cec0c00bd0aa7c0121c2a

            SHA1

            5351ef9b7b0a95ce28dfb9e61ae85019c7fd8a63

            SHA256

            b62d0a10e4e59749da7ccfcd085ae878915e398261b8bbc721e3959bbcd90c62

            SHA512

            8cdf1c1cbb1ca366ede25403aa80bfb335a05fc363d0814631bb066135185c14818a22022ed90de3247ac8d145fe661d762c4dc7f161e9d0e67f6a44555bb470

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            617e334a3c9cec0c00bd0aa7c0121c2a

            SHA1

            5351ef9b7b0a95ce28dfb9e61ae85019c7fd8a63

            SHA256

            b62d0a10e4e59749da7ccfcd085ae878915e398261b8bbc721e3959bbcd90c62

            SHA512

            8cdf1c1cbb1ca366ede25403aa80bfb335a05fc363d0814631bb066135185c14818a22022ed90de3247ac8d145fe661d762c4dc7f161e9d0e67f6a44555bb470

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a45ee1ac84205de1bb0cab9ef77a6ee

            SHA1

            6962bf5ac581bdef3afcdb2802cbfdb257545d84

            SHA256

            d70418547cb1ce11c8f29ac5503a5d1081cd4edaf8e398283c4b17c21c4b445d

            SHA512

            4401ad803ab89d74e124fd890e94a3d198b685a28275dc9fe379314d6489a8c3c7cf7b830d14c94cd0be8c57848a84a566daa4a54e64e41c125230db0bf9198a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a45ee1ac84205de1bb0cab9ef77a6ee

            SHA1

            6962bf5ac581bdef3afcdb2802cbfdb257545d84

            SHA256

            d70418547cb1ce11c8f29ac5503a5d1081cd4edaf8e398283c4b17c21c4b445d

            SHA512

            4401ad803ab89d74e124fd890e94a3d198b685a28275dc9fe379314d6489a8c3c7cf7b830d14c94cd0be8c57848a84a566daa4a54e64e41c125230db0bf9198a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5a45ee1ac84205de1bb0cab9ef77a6ee

            SHA1

            6962bf5ac581bdef3afcdb2802cbfdb257545d84

            SHA256

            d70418547cb1ce11c8f29ac5503a5d1081cd4edaf8e398283c4b17c21c4b445d

            SHA512

            4401ad803ab89d74e124fd890e94a3d198b685a28275dc9fe379314d6489a8c3c7cf7b830d14c94cd0be8c57848a84a566daa4a54e64e41c125230db0bf9198a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a8f897eb313f41575112cb8168b39e1b

            SHA1

            d4d7e7235bcefe5b8fc5bd108b9bfc93f4a92fe2

            SHA256

            4613e07f605b2809fd9b84702d4133b449328fa8230bf08fed142fbcda30e40a

            SHA512

            d75a23dba21d5d215347faa370c792594592c960986ac67870700017dd96c923ba938452989351f66b3759f2ec9409405f0624c6c008238328f17fef5c384f9d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a8f897eb313f41575112cb8168b39e1b

            SHA1

            d4d7e7235bcefe5b8fc5bd108b9bfc93f4a92fe2

            SHA256

            4613e07f605b2809fd9b84702d4133b449328fa8230bf08fed142fbcda30e40a

            SHA512

            d75a23dba21d5d215347faa370c792594592c960986ac67870700017dd96c923ba938452989351f66b3759f2ec9409405f0624c6c008238328f17fef5c384f9d

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3e62033c9b81297d3ac94ebcfdd241f2

            SHA1

            e803e47c12081493d0b37a383a3c133af6ec3c58

            SHA256

            5e0968edfb7a943acb80bf526e7d45049db8f49d6bb7c905381d3ab5a69c9273

            SHA512

            576388a611d08bff92f869db14272d620c7e4dcbfc1f3b55fff46177d443c46494da25cf28b9dc3bf5b940be7aa3cf04281f696d2f70b081e7af144111e1ecee

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            fb62b1c0944d03f0b53109e1e126bafc

            SHA1

            55354838b3b0e74b132bdb0737aa5423bf38bd0c

            SHA256

            443acc1be5fd12969d4194d12afb2672d6c6556413afac95775cd4452e00de6d

            SHA512

            d132c7083f741f01b77c2b4ca24f4e2c604356e79982c97a30e398ee4045e9b7fdfb949398186b2124a19d6004b7d6d4972f8b554a6855c1ddf723a75677c48f

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            617e334a3c9cec0c00bd0aa7c0121c2a

            SHA1

            5351ef9b7b0a95ce28dfb9e61ae85019c7fd8a63

            SHA256

            b62d0a10e4e59749da7ccfcd085ae878915e398261b8bbc721e3959bbcd90c62

            SHA512

            8cdf1c1cbb1ca366ede25403aa80bfb335a05fc363d0814631bb066135185c14818a22022ed90de3247ac8d145fe661d762c4dc7f161e9d0e67f6a44555bb470

          • memory/268-62-0x0000000000000000-mapping.dmp

          • memory/328-64-0x0000000000000000-mapping.dmp

          • memory/628-87-0x0000000000000000-mapping.dmp

          • memory/1000-58-0x0000000000000000-mapping.dmp

          • memory/1044-61-0x0000000000000000-mapping.dmp

          • memory/1160-88-0x0000000000000000-mapping.dmp

          • memory/1164-81-0x0000000000000000-mapping.dmp

          • memory/1708-77-0x0000000000000000-mapping.dmp

          • memory/1812-82-0x0000000000000000-mapping.dmp

          • memory/1900-71-0x0000000000000000-mapping.dmp

          • memory/1964-57-0x0000000000000000-mapping.dmp

          • memory/2016-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

            Filesize

            8KB

          • memory/2016-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2016-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2016-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB