Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:08

General

  • Target

    f1006e0dffa8668a7a41460ea0c020b49268a7e14a25142919f8358c13494629.exe

  • Size

    601KB

  • MD5

    d784b59855ff2441de6a38b5542d1411

  • SHA1

    b14b76b3043eac4f1a2a132b98801c42868de900

  • SHA256

    f1006e0dffa8668a7a41460ea0c020b49268a7e14a25142919f8358c13494629

  • SHA512

    c61cbe58f10dfcc2dc4b95ccf9f44565e86652367f81b4af83994a85e98b6c012c7ca870c2a7ecaf20c4e2db3af5ba613f24e487490185c943d85aa18d52bd25

  • SSDEEP

    12288:VIny5DYTtDP6ft+ZYBIHpsGSMByE57m61jTacliVl:hUTtb6UZYBIHpTBzlRRaRP

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\f1006e0dffa8668a7a41460ea0c020b49268a7e14a25142919f8358c13494629.exe
    "C:\Users\Admin\AppData\Local\Temp\f1006e0dffa8668a7a41460ea0c020b49268a7e14a25142919f8358c13494629.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:2036
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1728
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1524
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1688
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:604
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1692
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:852
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1760
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1252
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:824
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1504
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1500
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1684
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2008

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b6f0d89a90e26227d86f23ae5570eb

            SHA1

            b35e0e3957086658a2c779ce9890f481e5b4e330

            SHA256

            2474670206f36d68b24205ac3406006901666cb82f406e4f49520f6b1efc8885

            SHA512

            3bfe1e304ff7164f190b8df6a9b35bceaf0b8a4132f5a9883d2f4d9a3a58307250210d401a64d060b3c56a1f87cf5991b017d280d8505c0d0c971f843d53a631

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a00631579ea158e8789a29836e7575d2

            SHA1

            d94f66a7c02c9ff589bafa40764f9e30e07e7dce

            SHA256

            6a2870f857543ee8caf6d58d2f24f42561f01f1be28d9b1843b7eeedf7e4784b

            SHA512

            c671f694f16af253572b9dbbea78a7d5ed1313ca9f18e7197874e1cf55ea135233ee198b67cb63336e1012d96fc963be2f57dfb0cbd1ffcdeafb8ea85f462cd0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5a300802dc79c18a9e882d5cdb577c62

            SHA1

            77d5f79d25b3abdddb3a2d323061483a1687e9ee

            SHA256

            ea04ce38771b1a6abb3e4d8769a838cbc10c9281d1be6c8b05ab6654947a9312

            SHA512

            0e225715dbf486b5bf63fca48a1a2f788b76e24b4ebd07d31249e682ced2a8b01f37d08e2d37b1cfdcb1185a8ec35d8ab4b9814c2fdfcdc53ef93031214a0a8c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f9f4c4d9cd70fdbe0d23e95266204e0f

            SHA1

            2ce57a1d0bbb803613b756f846cbb500622f9217

            SHA256

            85173060d0da9ee0325c8d06e9753457cc8329c1a15695288d4c89be097b8ad5

            SHA512

            40d6ceb8e0339024ada06a0e8203d62770cb05efaf2bbf90a46d7f426ffe3e1c15856de3953031eefafb82f39832608e749cbe679775c3a2b0358627885de9cb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f9f4c4d9cd70fdbe0d23e95266204e0f

            SHA1

            2ce57a1d0bbb803613b756f846cbb500622f9217

            SHA256

            85173060d0da9ee0325c8d06e9753457cc8329c1a15695288d4c89be097b8ad5

            SHA512

            40d6ceb8e0339024ada06a0e8203d62770cb05efaf2bbf90a46d7f426ffe3e1c15856de3953031eefafb82f39832608e749cbe679775c3a2b0358627885de9cb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            94a7a85a818b0daab9dcdb90922c8062

            SHA1

            8d9eb82e415c96a51bbc4564d3da2fc1546b0038

            SHA256

            5a0e14ef3a206e30a3bb463020b2254f5688a5fb22f73298cbf62a1b8ccb1284

            SHA512

            8dece43f838bca9eda6532f63f1003b127911c93752bf73003a5830fd93cd0c94637b8756393e48a876ca2e340256de1e8b3cc1b2c0c95b80052115acf24d66f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            94a7a85a818b0daab9dcdb90922c8062

            SHA1

            8d9eb82e415c96a51bbc4564d3da2fc1546b0038

            SHA256

            5a0e14ef3a206e30a3bb463020b2254f5688a5fb22f73298cbf62a1b8ccb1284

            SHA512

            8dece43f838bca9eda6532f63f1003b127911c93752bf73003a5830fd93cd0c94637b8756393e48a876ca2e340256de1e8b3cc1b2c0c95b80052115acf24d66f

          • \Users\Admin\AppData\Local\Temp\nsyF460.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyF460.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF460.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF460.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF460.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b6f0d89a90e26227d86f23ae5570eb

            SHA1

            b35e0e3957086658a2c779ce9890f481e5b4e330

            SHA256

            2474670206f36d68b24205ac3406006901666cb82f406e4f49520f6b1efc8885

            SHA512

            3bfe1e304ff7164f190b8df6a9b35bceaf0b8a4132f5a9883d2f4d9a3a58307250210d401a64d060b3c56a1f87cf5991b017d280d8505c0d0c971f843d53a631

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b6f0d89a90e26227d86f23ae5570eb

            SHA1

            b35e0e3957086658a2c779ce9890f481e5b4e330

            SHA256

            2474670206f36d68b24205ac3406006901666cb82f406e4f49520f6b1efc8885

            SHA512

            3bfe1e304ff7164f190b8df6a9b35bceaf0b8a4132f5a9883d2f4d9a3a58307250210d401a64d060b3c56a1f87cf5991b017d280d8505c0d0c971f843d53a631

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            68b6f0d89a90e26227d86f23ae5570eb

            SHA1

            b35e0e3957086658a2c779ce9890f481e5b4e330

            SHA256

            2474670206f36d68b24205ac3406006901666cb82f406e4f49520f6b1efc8885

            SHA512

            3bfe1e304ff7164f190b8df6a9b35bceaf0b8a4132f5a9883d2f4d9a3a58307250210d401a64d060b3c56a1f87cf5991b017d280d8505c0d0c971f843d53a631

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a00631579ea158e8789a29836e7575d2

            SHA1

            d94f66a7c02c9ff589bafa40764f9e30e07e7dce

            SHA256

            6a2870f857543ee8caf6d58d2f24f42561f01f1be28d9b1843b7eeedf7e4784b

            SHA512

            c671f694f16af253572b9dbbea78a7d5ed1313ca9f18e7197874e1cf55ea135233ee198b67cb63336e1012d96fc963be2f57dfb0cbd1ffcdeafb8ea85f462cd0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a00631579ea158e8789a29836e7575d2

            SHA1

            d94f66a7c02c9ff589bafa40764f9e30e07e7dce

            SHA256

            6a2870f857543ee8caf6d58d2f24f42561f01f1be28d9b1843b7eeedf7e4784b

            SHA512

            c671f694f16af253572b9dbbea78a7d5ed1313ca9f18e7197874e1cf55ea135233ee198b67cb63336e1012d96fc963be2f57dfb0cbd1ffcdeafb8ea85f462cd0

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5a300802dc79c18a9e882d5cdb577c62

            SHA1

            77d5f79d25b3abdddb3a2d323061483a1687e9ee

            SHA256

            ea04ce38771b1a6abb3e4d8769a838cbc10c9281d1be6c8b05ab6654947a9312

            SHA512

            0e225715dbf486b5bf63fca48a1a2f788b76e24b4ebd07d31249e682ced2a8b01f37d08e2d37b1cfdcb1185a8ec35d8ab4b9814c2fdfcdc53ef93031214a0a8c

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f9f4c4d9cd70fdbe0d23e95266204e0f

            SHA1

            2ce57a1d0bbb803613b756f846cbb500622f9217

            SHA256

            85173060d0da9ee0325c8d06e9753457cc8329c1a15695288d4c89be097b8ad5

            SHA512

            40d6ceb8e0339024ada06a0e8203d62770cb05efaf2bbf90a46d7f426ffe3e1c15856de3953031eefafb82f39832608e749cbe679775c3a2b0358627885de9cb

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            94a7a85a818b0daab9dcdb90922c8062

            SHA1

            8d9eb82e415c96a51bbc4564d3da2fc1546b0038

            SHA256

            5a0e14ef3a206e30a3bb463020b2254f5688a5fb22f73298cbf62a1b8ccb1284

            SHA512

            8dece43f838bca9eda6532f63f1003b127911c93752bf73003a5830fd93cd0c94637b8756393e48a876ca2e340256de1e8b3cc1b2c0c95b80052115acf24d66f

          • memory/604-62-0x0000000000000000-mapping.dmp

          • memory/824-82-0x0000000000000000-mapping.dmp

          • memory/852-71-0x0000000000000000-mapping.dmp

          • memory/1252-81-0x0000000000000000-mapping.dmp

          • memory/1500-88-0x0000000000000000-mapping.dmp

          • memory/1504-87-0x0000000000000000-mapping.dmp

          • memory/1524-59-0x0000000000000000-mapping.dmp

          • memory/1688-61-0x0000000000000000-mapping.dmp

          • memory/1692-64-0x0000000000000000-mapping.dmp

          • memory/1728-58-0x0000000000000000-mapping.dmp

          • memory/1760-77-0x0000000000000000-mapping.dmp

          • memory/2036-54-0x0000000075521000-0x0000000075523000-memory.dmp

            Filesize

            8KB

          • memory/2036-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2036-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2036-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB