Analysis

  • max time kernel
    175s
  • max time network
    194s
  • 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 10:11

General

  • Target

    d11ad38f6f0bb50401980379560b7b1c656baf576df1b76dd9605779a7f1f0c0.exe

  • Size

    602KB

  • MD5

    9f6f08f5bba8bcdc8df85f81a3c063a7

  • SHA1

    bb5476524a4a92ea40e9ae455ee972bada3dd66a

  • SHA256

    d11ad38f6f0bb50401980379560b7b1c656baf576df1b76dd9605779a7f1f0c0

  • SHA512

    07e6b23625d0e1bc17e676a70280e767b5447dbe9d324bf4938b42b684513fd66d62ee8728253106c0728ce5d40efd0aafa79a49ae775069bf52da3f210690c5

  • SSDEEP

    12288:jIny5DYT5ITCtr6t/KNc7FYvRqZ1vNu+cOcLb8RK:rUTeCGpKwNZnh8b8R

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\d11ad38f6f0bb50401980379560b7b1c656baf576df1b76dd9605779a7f1f0c0.exe
    "C:\Users\Admin\AppData\Local\Temp\d11ad38f6f0bb50401980379560b7b1c656baf576df1b76dd9605779a7f1f0c0.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:3548
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4752
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4904
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3964
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3608
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4716
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2992
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:796
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2168
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2288
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2588
          • 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:3876
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4940

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsi34BE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e56633b5d1e3fe092f061520c9eca53

            SHA1

            731ee965636b2421538971840da3b855e98a3d5f

            SHA256

            70e0177b9cca3de001f46356247ae2eda2998eb8edddfe13284b66ba0f8c0e83

            SHA512

            457009bafa7691f756585d5f85abbafb83406ac69c688f919dd1e5305b73fddcd0d7851b3949a8a4f537bb6cfb8e7cf77c65221191f693d4d36140d052011e81

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e56633b5d1e3fe092f061520c9eca53

            SHA1

            731ee965636b2421538971840da3b855e98a3d5f

            SHA256

            70e0177b9cca3de001f46356247ae2eda2998eb8edddfe13284b66ba0f8c0e83

            SHA512

            457009bafa7691f756585d5f85abbafb83406ac69c688f919dd1e5305b73fddcd0d7851b3949a8a4f537bb6cfb8e7cf77c65221191f693d4d36140d052011e81

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e56633b5d1e3fe092f061520c9eca53

            SHA1

            731ee965636b2421538971840da3b855e98a3d5f

            SHA256

            70e0177b9cca3de001f46356247ae2eda2998eb8edddfe13284b66ba0f8c0e83

            SHA512

            457009bafa7691f756585d5f85abbafb83406ac69c688f919dd1e5305b73fddcd0d7851b3949a8a4f537bb6cfb8e7cf77c65221191f693d4d36140d052011e81

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3e56633b5d1e3fe092f061520c9eca53

            SHA1

            731ee965636b2421538971840da3b855e98a3d5f

            SHA256

            70e0177b9cca3de001f46356247ae2eda2998eb8edddfe13284b66ba0f8c0e83

            SHA512

            457009bafa7691f756585d5f85abbafb83406ac69c688f919dd1e5305b73fddcd0d7851b3949a8a4f537bb6cfb8e7cf77c65221191f693d4d36140d052011e81

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8b71677cc5f3f4838598b089d397fd74

            SHA1

            a9dbef713e67d7eecf0900aaa9646f81775907f7

            SHA256

            d875ba81952d43d68047f1ba10d62444ef22ffff78d5548dd68a3dbdbd9fe58e

            SHA512

            719403a7e46fffbaa4cbf694c53c6db7c61e19ff86430a88512a5d28d8fc1d61c979e31ea43572c46f02b8bd7ce29c04677c17b90124119fc0db154cbfdaf59e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8b71677cc5f3f4838598b089d397fd74

            SHA1

            a9dbef713e67d7eecf0900aaa9646f81775907f7

            SHA256

            d875ba81952d43d68047f1ba10d62444ef22ffff78d5548dd68a3dbdbd9fe58e

            SHA512

            719403a7e46fffbaa4cbf694c53c6db7c61e19ff86430a88512a5d28d8fc1d61c979e31ea43572c46f02b8bd7ce29c04677c17b90124119fc0db154cbfdaf59e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8b71677cc5f3f4838598b089d397fd74

            SHA1

            a9dbef713e67d7eecf0900aaa9646f81775907f7

            SHA256

            d875ba81952d43d68047f1ba10d62444ef22ffff78d5548dd68a3dbdbd9fe58e

            SHA512

            719403a7e46fffbaa4cbf694c53c6db7c61e19ff86430a88512a5d28d8fc1d61c979e31ea43572c46f02b8bd7ce29c04677c17b90124119fc0db154cbfdaf59e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            79281cf060bbef7f6f328642a2441560

            SHA1

            eeeab0d7302fb6e1ff8f4af1809815def567a59b

            SHA256

            f61c89c3c18162fb76ae870d5e817f6401dec8c73589f45e649b8cdcb0a48b5d

            SHA512

            fda002ea5b8ee78d93a761516532b02bb26249bf91a44c82b74b4c1c25b99c72a2def64c04511635af7b3c0e06cb1ef7ffe79d5d18f7e63748d489ff687d752a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            79281cf060bbef7f6f328642a2441560

            SHA1

            eeeab0d7302fb6e1ff8f4af1809815def567a59b

            SHA256

            f61c89c3c18162fb76ae870d5e817f6401dec8c73589f45e649b8cdcb0a48b5d

            SHA512

            fda002ea5b8ee78d93a761516532b02bb26249bf91a44c82b74b4c1c25b99c72a2def64c04511635af7b3c0e06cb1ef7ffe79d5d18f7e63748d489ff687d752a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ea2b7c21807a1bec0596dae76e25645f

            SHA1

            994e6e8504a95092d9e4d86fde3b72cd22557c7d

            SHA256

            99b5a085fcd6ad22208f72a9d3aca3bfddfeb4aa6a4e4727cf80740686c518b6

            SHA512

            5e095590fa6b048d7abd51945ce42b6045ddb7103c5c2d0e1756d75c1318c47ae651395aa1d30c0421e31fa9b529e8fdc70d5614340a8dfab2dbd6f09558a22a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ea2b7c21807a1bec0596dae76e25645f

            SHA1

            994e6e8504a95092d9e4d86fde3b72cd22557c7d

            SHA256

            99b5a085fcd6ad22208f72a9d3aca3bfddfeb4aa6a4e4727cf80740686c518b6

            SHA512

            5e095590fa6b048d7abd51945ce42b6045ddb7103c5c2d0e1756d75c1318c47ae651395aa1d30c0421e31fa9b529e8fdc70d5614340a8dfab2dbd6f09558a22a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            ea2b7c21807a1bec0596dae76e25645f

            SHA1

            994e6e8504a95092d9e4d86fde3b72cd22557c7d

            SHA256

            99b5a085fcd6ad22208f72a9d3aca3bfddfeb4aa6a4e4727cf80740686c518b6

            SHA512

            5e095590fa6b048d7abd51945ce42b6045ddb7103c5c2d0e1756d75c1318c47ae651395aa1d30c0421e31fa9b529e8fdc70d5614340a8dfab2dbd6f09558a22a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a9c51ba68503839e795bc215cc95e62e

            SHA1

            26658c2ad2591e6d4748e1e61cfa2b3cbbfc23c2

            SHA256

            44b40532f2d3c287c83d27d05a2557a0624b80d05286bcf97d2c729da0c000ab

            SHA512

            176c79af15c42f776ba364ccb9fbdc80e8982155dc95a078e473bd5e43c682594686347ec86864bae28688f7ba3fb89c9cfeb4103a0bd26dee6f2dd75f09e780

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a9c51ba68503839e795bc215cc95e62e

            SHA1

            26658c2ad2591e6d4748e1e61cfa2b3cbbfc23c2

            SHA256

            44b40532f2d3c287c83d27d05a2557a0624b80d05286bcf97d2c729da0c000ab

            SHA512

            176c79af15c42f776ba364ccb9fbdc80e8982155dc95a078e473bd5e43c682594686347ec86864bae28688f7ba3fb89c9cfeb4103a0bd26dee6f2dd75f09e780

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a9c51ba68503839e795bc215cc95e62e

            SHA1

            26658c2ad2591e6d4748e1e61cfa2b3cbbfc23c2

            SHA256

            44b40532f2d3c287c83d27d05a2557a0624b80d05286bcf97d2c729da0c000ab

            SHA512

            176c79af15c42f776ba364ccb9fbdc80e8982155dc95a078e473bd5e43c682594686347ec86864bae28688f7ba3fb89c9cfeb4103a0bd26dee6f2dd75f09e780

          • memory/796-159-0x0000000000000000-mapping.dmp

          • memory/2168-160-0x0000000000000000-mapping.dmp

          • memory/2288-166-0x0000000000000000-mapping.dmp

          • memory/2588-167-0x0000000000000000-mapping.dmp

          • memory/2992-154-0x0000000000000000-mapping.dmp

          • memory/3548-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3548-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3548-134-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3608-142-0x0000000000000000-mapping.dmp

          • memory/3640-148-0x0000000000000000-mapping.dmp

          • memory/3964-141-0x0000000000000000-mapping.dmp

          • memory/4716-143-0x0000000000000000-mapping.dmp

          • memory/4752-137-0x0000000000000000-mapping.dmp

          • memory/4904-138-0x0000000000000000-mapping.dmp