Analysis

  • max time kernel
    24s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    21-11-2022 23:51

General

  • Target

    e9f8bd9044a7d894c682eba1e284d4643906a344626c368d9792fa30d64ad05d.exe

  • Size

    603KB

  • MD5

    d9d674bcc21e22da26b870a6dc855406

  • SHA1

    15dd12989f4ea89fb7772d6a13c7a8e4d550647e

  • SHA256

    e9f8bd9044a7d894c682eba1e284d4643906a344626c368d9792fa30d64ad05d

  • SHA512

    8e3cec7a993a3f49bda2fff1847126067eab09d76a5bb7cbdd4cc84e8d107f09698c9b74a168e617c86ecacc1a14b580280aaec67fe31dd6d3a78448430052a9

  • SSDEEP

    12288:zIny5DYTfIet+ODNccstl793fyLgBtPoave+2LDGG:bUTfFnNccW993AAtgyKSG

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\e9f8bd9044a7d894c682eba1e284d4643906a344626c368d9792fa30d64ad05d.exe
    "C:\Users\Admin\AppData\Local\Temp\e9f8bd9044a7d894c682eba1e284d4643906a344626c368d9792fa30d64ad05d.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:1996
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1824
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1500
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:552
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:336
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1496
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1092
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1336
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1156
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:884
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1444
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:824
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:952
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1556

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3b3c1f4c5deb2b57f552f50427c02a9a

            SHA1

            6b835f5e2817b65840189964fc14a5dd54dc6a91

            SHA256

            ac094150a21cec5d645f460e33af6bd7e7d33767d8851e8c9336f4a58dcd46ee

            SHA512

            8a64e97cb425dae7fe0bb9cacc0d878a9fc7706d06c83f726f360bc26a23abf5c42d33fdf0565fa124c57d37dff21570034b2d8e5f7df144889a4f1721182eeb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            c9670c6d03f260fc23eef9501e75ce59

            SHA1

            6f2a395f9013d3aaf188267c631467fa3138f9dc

            SHA256

            2a10aa9afe5854be750ca7d5d460ee25c6f780d65230367c93aaa949199d44f8

            SHA512

            534d42cc8bb59ce5f6adb3b5f3bfcc77e51889c9277d54398d9aa759c334aac3ad5fdb27b761c11d1d46f85f53d7b5abe752c240cc33c38421c3359279d22d80

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            193013de71ea9fc8aa3caf7dfd1bb773

            SHA1

            bb93b3fd85216b33042336b6a616823a21993fa4

            SHA256

            1333c70e12652909511dfc227d023d8124d94eefc11f2cec20ba7ce384fa701c

            SHA512

            ca3c332ed9ad7453efc481bbb9fe50b82b591dc15547c4b2320a0ab3d96188d4cee2a018ddc27bbfc9e602dd833f67792d18f5dcd4153f3c6c58384e5072ee8a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3cc6ac8edd7735b18148ee97dae24316

            SHA1

            c4d58054b4e09ba87ba436daa0ac7ee3e6b9f7a5

            SHA256

            fc7a25acb99bd6185488eea0385fb0602837fa6f7b4f404baa5ac5a71cb6da59

            SHA512

            c6b7c2e2fc33fa85d4973f4eccc5d35763698a6dbbdf1a6624f0786ba1ca6eeae39447c1a999a5361e11f008790c674586967947280f62948d28c021791bb077

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3cc6ac8edd7735b18148ee97dae24316

            SHA1

            c4d58054b4e09ba87ba436daa0ac7ee3e6b9f7a5

            SHA256

            fc7a25acb99bd6185488eea0385fb0602837fa6f7b4f404baa5ac5a71cb6da59

            SHA512

            c6b7c2e2fc33fa85d4973f4eccc5d35763698a6dbbdf1a6624f0786ba1ca6eeae39447c1a999a5361e11f008790c674586967947280f62948d28c021791bb077

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            23422915fc151cacf9e3e6d8e7ce4aa8

            SHA1

            ea7c8f8bfad632662ed23606ac37118e827b5ba3

            SHA256

            9122584cb29d0e36e4ef1cb1441e74c8386de257651b93969f38abe1bc87df47

            SHA512

            86c9d5f728b0766ce619126a2f8f36dacb8bbbf03438482e0815a4d4915f1d98d4184e65649cdd0c982d1517e247261fe843aa50d845fc18df9a8b0dd993344b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            23422915fc151cacf9e3e6d8e7ce4aa8

            SHA1

            ea7c8f8bfad632662ed23606ac37118e827b5ba3

            SHA256

            9122584cb29d0e36e4ef1cb1441e74c8386de257651b93969f38abe1bc87df47

            SHA512

            86c9d5f728b0766ce619126a2f8f36dacb8bbbf03438482e0815a4d4915f1d98d4184e65649cdd0c982d1517e247261fe843aa50d845fc18df9a8b0dd993344b

          • \Users\Admin\AppData\Local\Temp\nso8AA6.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso8AA6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso8AA6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso8AA6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso8AA6.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3b3c1f4c5deb2b57f552f50427c02a9a

            SHA1

            6b835f5e2817b65840189964fc14a5dd54dc6a91

            SHA256

            ac094150a21cec5d645f460e33af6bd7e7d33767d8851e8c9336f4a58dcd46ee

            SHA512

            8a64e97cb425dae7fe0bb9cacc0d878a9fc7706d06c83f726f360bc26a23abf5c42d33fdf0565fa124c57d37dff21570034b2d8e5f7df144889a4f1721182eeb

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3b3c1f4c5deb2b57f552f50427c02a9a

            SHA1

            6b835f5e2817b65840189964fc14a5dd54dc6a91

            SHA256

            ac094150a21cec5d645f460e33af6bd7e7d33767d8851e8c9336f4a58dcd46ee

            SHA512

            8a64e97cb425dae7fe0bb9cacc0d878a9fc7706d06c83f726f360bc26a23abf5c42d33fdf0565fa124c57d37dff21570034b2d8e5f7df144889a4f1721182eeb

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            3b3c1f4c5deb2b57f552f50427c02a9a

            SHA1

            6b835f5e2817b65840189964fc14a5dd54dc6a91

            SHA256

            ac094150a21cec5d645f460e33af6bd7e7d33767d8851e8c9336f4a58dcd46ee

            SHA512

            8a64e97cb425dae7fe0bb9cacc0d878a9fc7706d06c83f726f360bc26a23abf5c42d33fdf0565fa124c57d37dff21570034b2d8e5f7df144889a4f1721182eeb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            c9670c6d03f260fc23eef9501e75ce59

            SHA1

            6f2a395f9013d3aaf188267c631467fa3138f9dc

            SHA256

            2a10aa9afe5854be750ca7d5d460ee25c6f780d65230367c93aaa949199d44f8

            SHA512

            534d42cc8bb59ce5f6adb3b5f3bfcc77e51889c9277d54398d9aa759c334aac3ad5fdb27b761c11d1d46f85f53d7b5abe752c240cc33c38421c3359279d22d80

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            c9670c6d03f260fc23eef9501e75ce59

            SHA1

            6f2a395f9013d3aaf188267c631467fa3138f9dc

            SHA256

            2a10aa9afe5854be750ca7d5d460ee25c6f780d65230367c93aaa949199d44f8

            SHA512

            534d42cc8bb59ce5f6adb3b5f3bfcc77e51889c9277d54398d9aa759c334aac3ad5fdb27b761c11d1d46f85f53d7b5abe752c240cc33c38421c3359279d22d80

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            193013de71ea9fc8aa3caf7dfd1bb773

            SHA1

            bb93b3fd85216b33042336b6a616823a21993fa4

            SHA256

            1333c70e12652909511dfc227d023d8124d94eefc11f2cec20ba7ce384fa701c

            SHA512

            ca3c332ed9ad7453efc481bbb9fe50b82b591dc15547c4b2320a0ab3d96188d4cee2a018ddc27bbfc9e602dd833f67792d18f5dcd4153f3c6c58384e5072ee8a

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3cc6ac8edd7735b18148ee97dae24316

            SHA1

            c4d58054b4e09ba87ba436daa0ac7ee3e6b9f7a5

            SHA256

            fc7a25acb99bd6185488eea0385fb0602837fa6f7b4f404baa5ac5a71cb6da59

            SHA512

            c6b7c2e2fc33fa85d4973f4eccc5d35763698a6dbbdf1a6624f0786ba1ca6eeae39447c1a999a5361e11f008790c674586967947280f62948d28c021791bb077

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            23422915fc151cacf9e3e6d8e7ce4aa8

            SHA1

            ea7c8f8bfad632662ed23606ac37118e827b5ba3

            SHA256

            9122584cb29d0e36e4ef1cb1441e74c8386de257651b93969f38abe1bc87df47

            SHA512

            86c9d5f728b0766ce619126a2f8f36dacb8bbbf03438482e0815a4d4915f1d98d4184e65649cdd0c982d1517e247261fe843aa50d845fc18df9a8b0dd993344b

          • memory/336-61-0x0000000000000000-mapping.dmp

          • memory/552-60-0x0000000000000000-mapping.dmp

          • memory/824-87-0x0000000000000000-mapping.dmp

          • memory/884-81-0x0000000000000000-mapping.dmp

          • memory/1092-70-0x0000000000000000-mapping.dmp

          • memory/1156-80-0x0000000000000000-mapping.dmp

          • memory/1336-76-0x0000000000000000-mapping.dmp

          • memory/1444-86-0x0000000000000000-mapping.dmp

          • memory/1496-64-0x0000000000000000-mapping.dmp

          • memory/1500-58-0x0000000000000000-mapping.dmp

          • memory/1824-57-0x0000000000000000-mapping.dmp

          • memory/1996-54-0x0000000075D61000-0x0000000075D63000-memory.dmp

            Filesize

            8KB

          • memory/1996-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1996-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB