Analysis

  • max time kernel
    54s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    9c5b6386d2ac4bf2254dd7dc0e2346218b0d2c5ac4448a91ea06e1c880c1c69b.exe

  • Size

    602KB

  • MD5

    cc8402007d24d8028afbd0c5dcde3313

  • SHA1

    b15f85b0aa46653015bab3f141c9408186c9ec7c

  • SHA256

    9c5b6386d2ac4bf2254dd7dc0e2346218b0d2c5ac4448a91ea06e1c880c1c69b

  • SHA512

    e207a10cbbc064e66f2b23b224c40b74267bff9c56bb4553747ff99f77689637bf4f7fc1b7cc95ef4eeeef95edad75a27fc8e198b78503fb27c6d87ea3a25384

  • SSDEEP

    12288:JIny5DYTjlYYZhCLraTT4txsaMhKcvphAS2uLTVl7m57+EKRpfMMW+MP1:lUTjlYYZhCgT4txADhASJTj747ZKDBWH

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\9c5b6386d2ac4bf2254dd7dc0e2346218b0d2c5ac4448a91ea06e1c880c1c69b.exe
    "C:\Users\Admin\AppData\Local\Temp\9c5b6386d2ac4bf2254dd7dc0e2346218b0d2c5ac4448a91ea06e1c880c1c69b.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:1428
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:588
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:868
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:584
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:636
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1284
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1536
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1460
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:864
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1496
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:700
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:616
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1920
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1292

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12867069bd4550e4e3367f8c49bbf88a

            SHA1

            8566a29242db8a00f81fc3edfcf378ad8a0a91a3

            SHA256

            5c49dfe2db53992102ce7aac25f0266b04663ea2f292f2e6b9fb5afaa6c00936

            SHA512

            360b117e62b8a3cfe5aeec9a3060ba750489723085ce6ebbaa3a4fe1e06308336e841c4a9391b58703f826f09665bbc60d48497fe1daed5d4e82e55d8a037a84

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dd9319e40c8eb89d2a140d32865f37dd

            SHA1

            48610507dbf934da324c72e1f56bb0a85bdf0c56

            SHA256

            7ef9295666a1472b1dde95a4d6b3bf6c4befca1fb2f62a41b96c927eb73fabab

            SHA512

            ccd5468ac4137b950b896d8ea71bfa1ce26e6f69ccf4eeb32e54abc08bc5c154c42999621ac2b1c01b7dce9d735e3aae01f181519c095a95bacfd88125c61c67

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            21e3b99c3dc8f60e60df6ed6fc140101

            SHA1

            d0667da3c0d72c8df726e12d2c4bccad1266277e

            SHA256

            e9758635a6aee1f5070399420e4bb40aec7caddcd0c34c74c7b1adabbf00bbc5

            SHA512

            7a96fe91eaf7dcfa1e57f62710ac57a5be2a697cdd52fd543e0691c96e29d1caf5d93af2d49ef1d7b1b794471176714a3986282426542a19ac307598afa1fc96

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e43c038f6cb71de7db4b452789514528

            SHA1

            9f8918487a699b494e8b29b885f62f3f00a54eb7

            SHA256

            0a01a126006f1d1268116629983420032b2a41e3544460955c59d83eaf0f1313

            SHA512

            7fcb2352b7f839b386dfbbe5f0680c298be809447014daf0e50dc22910c3910d66698a735c636a72d121f502ec78174a8266cf63e74860b9472c8d7d64553b88

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e43c038f6cb71de7db4b452789514528

            SHA1

            9f8918487a699b494e8b29b885f62f3f00a54eb7

            SHA256

            0a01a126006f1d1268116629983420032b2a41e3544460955c59d83eaf0f1313

            SHA512

            7fcb2352b7f839b386dfbbe5f0680c298be809447014daf0e50dc22910c3910d66698a735c636a72d121f502ec78174a8266cf63e74860b9472c8d7d64553b88

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c0361f0d5ada9844c444ae102c06ca74

            SHA1

            28abd73808ede04c407a113cce8322d1a8f3bdba

            SHA256

            373ff9901463ea3ca7c47af7c2f8d8fb40eb8fa54606e4ece2b4b53a61b4dfe0

            SHA512

            265e89bb9f7068f961603a12c20d3a3f2c88d62bd3128dd5ca44555d20eb8200d3b402004d51c98827533b4618e99031918a195bd984cb3582974ec6fa3c2d64

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c0361f0d5ada9844c444ae102c06ca74

            SHA1

            28abd73808ede04c407a113cce8322d1a8f3bdba

            SHA256

            373ff9901463ea3ca7c47af7c2f8d8fb40eb8fa54606e4ece2b4b53a61b4dfe0

            SHA512

            265e89bb9f7068f961603a12c20d3a3f2c88d62bd3128dd5ca44555d20eb8200d3b402004d51c98827533b4618e99031918a195bd984cb3582974ec6fa3c2d64

          • \Users\Admin\AppData\Local\Temp\nsjAF65.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjAF65.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjAF65.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjAF65.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjAF65.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12867069bd4550e4e3367f8c49bbf88a

            SHA1

            8566a29242db8a00f81fc3edfcf378ad8a0a91a3

            SHA256

            5c49dfe2db53992102ce7aac25f0266b04663ea2f292f2e6b9fb5afaa6c00936

            SHA512

            360b117e62b8a3cfe5aeec9a3060ba750489723085ce6ebbaa3a4fe1e06308336e841c4a9391b58703f826f09665bbc60d48497fe1daed5d4e82e55d8a037a84

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12867069bd4550e4e3367f8c49bbf88a

            SHA1

            8566a29242db8a00f81fc3edfcf378ad8a0a91a3

            SHA256

            5c49dfe2db53992102ce7aac25f0266b04663ea2f292f2e6b9fb5afaa6c00936

            SHA512

            360b117e62b8a3cfe5aeec9a3060ba750489723085ce6ebbaa3a4fe1e06308336e841c4a9391b58703f826f09665bbc60d48497fe1daed5d4e82e55d8a037a84

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12867069bd4550e4e3367f8c49bbf88a

            SHA1

            8566a29242db8a00f81fc3edfcf378ad8a0a91a3

            SHA256

            5c49dfe2db53992102ce7aac25f0266b04663ea2f292f2e6b9fb5afaa6c00936

            SHA512

            360b117e62b8a3cfe5aeec9a3060ba750489723085ce6ebbaa3a4fe1e06308336e841c4a9391b58703f826f09665bbc60d48497fe1daed5d4e82e55d8a037a84

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dd9319e40c8eb89d2a140d32865f37dd

            SHA1

            48610507dbf934da324c72e1f56bb0a85bdf0c56

            SHA256

            7ef9295666a1472b1dde95a4d6b3bf6c4befca1fb2f62a41b96c927eb73fabab

            SHA512

            ccd5468ac4137b950b896d8ea71bfa1ce26e6f69ccf4eeb32e54abc08bc5c154c42999621ac2b1c01b7dce9d735e3aae01f181519c095a95bacfd88125c61c67

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            dd9319e40c8eb89d2a140d32865f37dd

            SHA1

            48610507dbf934da324c72e1f56bb0a85bdf0c56

            SHA256

            7ef9295666a1472b1dde95a4d6b3bf6c4befca1fb2f62a41b96c927eb73fabab

            SHA512

            ccd5468ac4137b950b896d8ea71bfa1ce26e6f69ccf4eeb32e54abc08bc5c154c42999621ac2b1c01b7dce9d735e3aae01f181519c095a95bacfd88125c61c67

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            21e3b99c3dc8f60e60df6ed6fc140101

            SHA1

            d0667da3c0d72c8df726e12d2c4bccad1266277e

            SHA256

            e9758635a6aee1f5070399420e4bb40aec7caddcd0c34c74c7b1adabbf00bbc5

            SHA512

            7a96fe91eaf7dcfa1e57f62710ac57a5be2a697cdd52fd543e0691c96e29d1caf5d93af2d49ef1d7b1b794471176714a3986282426542a19ac307598afa1fc96

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e43c038f6cb71de7db4b452789514528

            SHA1

            9f8918487a699b494e8b29b885f62f3f00a54eb7

            SHA256

            0a01a126006f1d1268116629983420032b2a41e3544460955c59d83eaf0f1313

            SHA512

            7fcb2352b7f839b386dfbbe5f0680c298be809447014daf0e50dc22910c3910d66698a735c636a72d121f502ec78174a8266cf63e74860b9472c8d7d64553b88

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c0361f0d5ada9844c444ae102c06ca74

            SHA1

            28abd73808ede04c407a113cce8322d1a8f3bdba

            SHA256

            373ff9901463ea3ca7c47af7c2f8d8fb40eb8fa54606e4ece2b4b53a61b4dfe0

            SHA512

            265e89bb9f7068f961603a12c20d3a3f2c88d62bd3128dd5ca44555d20eb8200d3b402004d51c98827533b4618e99031918a195bd984cb3582974ec6fa3c2d64

          • memory/584-61-0x0000000000000000-mapping.dmp

          • memory/588-57-0x0000000000000000-mapping.dmp

          • memory/616-88-0x0000000000000000-mapping.dmp

          • memory/636-62-0x0000000000000000-mapping.dmp

          • memory/700-87-0x0000000000000000-mapping.dmp

          • memory/864-81-0x0000000000000000-mapping.dmp

          • memory/868-58-0x0000000000000000-mapping.dmp

          • memory/1284-64-0x0000000000000000-mapping.dmp

          • memory/1428-54-0x0000000075591000-0x0000000075593000-memory.dmp

            Filesize

            8KB

          • memory/1428-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1428-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1428-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1460-77-0x0000000000000000-mapping.dmp

          • memory/1496-82-0x0000000000000000-mapping.dmp

          • memory/1536-70-0x0000000000000000-mapping.dmp