Analysis

  • max time kernel
    67s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:13

General

  • Target

    beab3ea39a326d9a2d595dfd3f7a622a7fbe8a0102a508a99d13312f8033a47c.exe

  • Size

    603KB

  • MD5

    38ddb13cd29d631fc4a46ce08d8e9f89

  • SHA1

    2e23b77c2dff1907983221403a173056b4eccac9

  • SHA256

    beab3ea39a326d9a2d595dfd3f7a622a7fbe8a0102a508a99d13312f8033a47c

  • SHA512

    1a2f44e41b16f53f392079b41be4864dd64480184ca323918d5d93acb43a15093713e8a08135069b93b9d506c4e5d77d8845c438cb726527da9f9efdfbfdf388

  • SSDEEP

    12288:YIny5DYTfIhGk4rSqkHzb6hHU1vxx1E3lKAJyft4BQGOF:2UTfOGk6SRHzOyfEbJyeOF

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\beab3ea39a326d9a2d595dfd3f7a622a7fbe8a0102a508a99d13312f8033a47c.exe
    "C:\Users\Admin\AppData\Local\Temp\beab3ea39a326d9a2d595dfd3f7a622a7fbe8a0102a508a99d13312f8033a47c.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:1076
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:328
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1304
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1156
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1632
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1160
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1512
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1940
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1820
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:316
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1972
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1720
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1976
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1200

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            00e421cc419a1ade3a1d32918a35c170

            SHA1

            005379cac9b671f424e277b647eb310c00550c9e

            SHA256

            895d138539e08001becc00c02ec712fd9feec4df2dfe6a9c092b612689575071

            SHA512

            46cc349c55a017fb529bd08dc5a15282b7d43024fe09f613250deb108ed39361806e0b33b9e9a9ed1c8d653a9637f4602d5ab91f445373aab1f11533b2551adf

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            f8b8d9f6d687cc2465ec674608742c01

            SHA1

            e0f789a7d98ef7453ea3dd330fb804f87df5e250

            SHA256

            66e3bd3dbac349ac064541f9dc74751a398aa34e8807c3c5ae2cee5fe88fee68

            SHA512

            df25d3ff24bde6022427b1b5a5424c25d12df6b7e853db1744aa89dfaaae9a11d2173f049cb31a504d8119c8d484a4a1962d468a628f7011bbff7ed6aa9a6885

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            0786b00d736c0f2129fbb4bceca61b52

            SHA1

            48d944126836191a1fd2fd8c01570b14b0ef835f

            SHA256

            0173518077ef18f5fe080061f6aa01f5e9fe7a47c7dc209943ea90a10d2dd65e

            SHA512

            924bc5a4a3deaecb1405c3cf460a53657cf7d3e97c9e12f1fc8bb0c6b81ca1e38b2abaee337bfcbe500a913f0d533474a8865e8c767a27d7f8dd1677b2c8819e

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            b9115d92ff90e9e0f97047ae391c4469

            SHA1

            5791f741d1708624c628e5a58dffff376b34359a

            SHA256

            8c9473edd5e3e673c2eadba72c3c133fd857d1148d0d14e6b0f5cd02c9a32df1

            SHA512

            5245e55ed8f5e76c98d5d752720253feb63419b324eaa10837b59fc2e831966f69da3f31945c1c484fde12c00e43a71176e4fad0b3e38fadb0f5b7615c378a41

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            b9115d92ff90e9e0f97047ae391c4469

            SHA1

            5791f741d1708624c628e5a58dffff376b34359a

            SHA256

            8c9473edd5e3e673c2eadba72c3c133fd857d1148d0d14e6b0f5cd02c9a32df1

            SHA512

            5245e55ed8f5e76c98d5d752720253feb63419b324eaa10837b59fc2e831966f69da3f31945c1c484fde12c00e43a71176e4fad0b3e38fadb0f5b7615c378a41

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            40d93e4ff7b169a9b34c2ac448a1ab03

            SHA1

            78b10148cf73f5e5a50cb0fe56e8d94251758f00

            SHA256

            f5e870011e8d707761bdc71b8b64895226705a46a45cb68810eb9728d6e26cc4

            SHA512

            e4cea82b1b5cbc56ba7ce24528b5a2d1a7854f3a4a2882c9bd475f1b6bf7ed91b6d41df6c77e40724518bab4109c35bf7a946ddd2af339741558fb50d7ee253e

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            40d93e4ff7b169a9b34c2ac448a1ab03

            SHA1

            78b10148cf73f5e5a50cb0fe56e8d94251758f00

            SHA256

            f5e870011e8d707761bdc71b8b64895226705a46a45cb68810eb9728d6e26cc4

            SHA512

            e4cea82b1b5cbc56ba7ce24528b5a2d1a7854f3a4a2882c9bd475f1b6bf7ed91b6d41df6c77e40724518bab4109c35bf7a946ddd2af339741558fb50d7ee253e

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA528.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            00e421cc419a1ade3a1d32918a35c170

            SHA1

            005379cac9b671f424e277b647eb310c00550c9e

            SHA256

            895d138539e08001becc00c02ec712fd9feec4df2dfe6a9c092b612689575071

            SHA512

            46cc349c55a017fb529bd08dc5a15282b7d43024fe09f613250deb108ed39361806e0b33b9e9a9ed1c8d653a9637f4602d5ab91f445373aab1f11533b2551adf

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            00e421cc419a1ade3a1d32918a35c170

            SHA1

            005379cac9b671f424e277b647eb310c00550c9e

            SHA256

            895d138539e08001becc00c02ec712fd9feec4df2dfe6a9c092b612689575071

            SHA512

            46cc349c55a017fb529bd08dc5a15282b7d43024fe09f613250deb108ed39361806e0b33b9e9a9ed1c8d653a9637f4602d5ab91f445373aab1f11533b2551adf

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            00e421cc419a1ade3a1d32918a35c170

            SHA1

            005379cac9b671f424e277b647eb310c00550c9e

            SHA256

            895d138539e08001becc00c02ec712fd9feec4df2dfe6a9c092b612689575071

            SHA512

            46cc349c55a017fb529bd08dc5a15282b7d43024fe09f613250deb108ed39361806e0b33b9e9a9ed1c8d653a9637f4602d5ab91f445373aab1f11533b2551adf

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            f8b8d9f6d687cc2465ec674608742c01

            SHA1

            e0f789a7d98ef7453ea3dd330fb804f87df5e250

            SHA256

            66e3bd3dbac349ac064541f9dc74751a398aa34e8807c3c5ae2cee5fe88fee68

            SHA512

            df25d3ff24bde6022427b1b5a5424c25d12df6b7e853db1744aa89dfaaae9a11d2173f049cb31a504d8119c8d484a4a1962d468a628f7011bbff7ed6aa9a6885

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            f8b8d9f6d687cc2465ec674608742c01

            SHA1

            e0f789a7d98ef7453ea3dd330fb804f87df5e250

            SHA256

            66e3bd3dbac349ac064541f9dc74751a398aa34e8807c3c5ae2cee5fe88fee68

            SHA512

            df25d3ff24bde6022427b1b5a5424c25d12df6b7e853db1744aa89dfaaae9a11d2173f049cb31a504d8119c8d484a4a1962d468a628f7011bbff7ed6aa9a6885

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            0786b00d736c0f2129fbb4bceca61b52

            SHA1

            48d944126836191a1fd2fd8c01570b14b0ef835f

            SHA256

            0173518077ef18f5fe080061f6aa01f5e9fe7a47c7dc209943ea90a10d2dd65e

            SHA512

            924bc5a4a3deaecb1405c3cf460a53657cf7d3e97c9e12f1fc8bb0c6b81ca1e38b2abaee337bfcbe500a913f0d533474a8865e8c767a27d7f8dd1677b2c8819e

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            b9115d92ff90e9e0f97047ae391c4469

            SHA1

            5791f741d1708624c628e5a58dffff376b34359a

            SHA256

            8c9473edd5e3e673c2eadba72c3c133fd857d1148d0d14e6b0f5cd02c9a32df1

            SHA512

            5245e55ed8f5e76c98d5d752720253feb63419b324eaa10837b59fc2e831966f69da3f31945c1c484fde12c00e43a71176e4fad0b3e38fadb0f5b7615c378a41

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            40d93e4ff7b169a9b34c2ac448a1ab03

            SHA1

            78b10148cf73f5e5a50cb0fe56e8d94251758f00

            SHA256

            f5e870011e8d707761bdc71b8b64895226705a46a45cb68810eb9728d6e26cc4

            SHA512

            e4cea82b1b5cbc56ba7ce24528b5a2d1a7854f3a4a2882c9bd475f1b6bf7ed91b6d41df6c77e40724518bab4109c35bf7a946ddd2af339741558fb50d7ee253e

          • memory/316-82-0x0000000000000000-mapping.dmp
          • memory/328-57-0x0000000000000000-mapping.dmp
          • memory/1076-62-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1076-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1076-54-0x0000000076AE1000-0x0000000076AE3000-memory.dmp
            Filesize

            8KB

          • memory/1076-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1156-60-0x0000000000000000-mapping.dmp
          • memory/1160-64-0x0000000000000000-mapping.dmp
          • memory/1304-58-0x0000000000000000-mapping.dmp
          • memory/1512-71-0x0000000000000000-mapping.dmp
          • memory/1632-61-0x0000000000000000-mapping.dmp
          • memory/1720-88-0x0000000000000000-mapping.dmp
          • memory/1820-81-0x0000000000000000-mapping.dmp
          • memory/1940-77-0x0000000000000000-mapping.dmp
          • memory/1972-87-0x0000000000000000-mapping.dmp