Analysis

  • max time kernel
    24s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:30

General

  • Target

    2ace9ba8c0df3e910e10adf4f6c132ea3458a68c73491a8b31111223439fbb60.exe

  • Size

    603KB

  • MD5

    5ccfc377cfeeb373d4ad7e0e8a6fcce5

  • SHA1

    822482933c87be3e302408a04dfae40934643c1b

  • SHA256

    2ace9ba8c0df3e910e10adf4f6c132ea3458a68c73491a8b31111223439fbb60

  • SHA512

    c0da356577fbc2c3aeecf4aab07a040c3167f741dac83720368f16432552bc48ad0955a6722b46bcfbaf783bd724a12803817c551c338fb68175997e9a36ebd6

  • SSDEEP

    12288:VIny5DYTMI82Ax16Z8L6tsOybotE1Cb2HRg:hUTMj2Ax1sSSZvEI+

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\2ace9ba8c0df3e910e10adf4f6c132ea3458a68c73491a8b31111223439fbb60.exe
    "C:\Users\Admin\AppData\Local\Temp\2ace9ba8c0df3e910e10adf4f6c132ea3458a68c73491a8b31111223439fbb60.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:1624
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2044
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1740
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2012
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1736
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1980
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:440
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1896
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:872
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1060
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1300
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:840
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1748
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1872

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cf9f6a432c8b69be3f73d49b2955096b

            SHA1

            b7f8c4769216cb4652467e3bd0aa4061729489d0

            SHA256

            2b379b0f3f0084281b1765b2139051f6390ba3020bfb7abbb76d62dacae63e34

            SHA512

            5486799cfa78465d839219b710d3c4fb95c0b8dd35b71ab915d12008cf732a276e7f73047390c79f772f38f190e84ef0a24a13af5c67a9cec1ab21362852603a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5ac0cb78065b8d42ce1e5430afe8aa5b

            SHA1

            734dbbc3f94c139df65ffdb580cf32dfbe2d6ed2

            SHA256

            0a09b528f4cd5a73b2c88ffcc00cf03a47c963647b92aa4d868dd9cc53cd3c55

            SHA512

            19218d49839fa4127a19cf2f37cdaa6a97cbfeb3ab0bfef892a0669ddad9a1b402397abc767d0b4866cb7a0b7184c606723f468832f1adb680b1165947b103c6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4ee5aa5cf86c1a3aefdb497f833abdd8

            SHA1

            741a4a7b750cf746e0bca65076ef2a34779c6dc1

            SHA256

            3fbb4da0d1ba729b9c106f1870b47670cfa00530659594e1c5981e91a2cb37f5

            SHA512

            0845d377b525150355f04b0d29bebae723b1061eb384bbfe4ff43ea982da7ae9eef304e0567222483e4bd78cde438fb984d8a0f5019b9fa02e8fdf80d1173b9a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            34c620d4f12e64f3796de72f13f0e906

            SHA1

            f2e7363e72d4542589c6f706fd7b75e43b1f0894

            SHA256

            c581559471f74b55d9b2690dcfca01970a2e980cf97ddbbe00317edabfa56d92

            SHA512

            75fc6e5fa816343925ad164108985719624c03df23068b559b630f0dc93f99df7e5bd94c682360dd57f0fb46e2ed48d706ff63d55440d9ccf9e2cfdc303609e5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            34c620d4f12e64f3796de72f13f0e906

            SHA1

            f2e7363e72d4542589c6f706fd7b75e43b1f0894

            SHA256

            c581559471f74b55d9b2690dcfca01970a2e980cf97ddbbe00317edabfa56d92

            SHA512

            75fc6e5fa816343925ad164108985719624c03df23068b559b630f0dc93f99df7e5bd94c682360dd57f0fb46e2ed48d706ff63d55440d9ccf9e2cfdc303609e5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            52c5fcbca9577a8eb18fc3c1b7d95836

            SHA1

            f6ca07c7ece0a85139a706fd66c6fd87e75740f5

            SHA256

            9d57090f7427aba2c924edaefa38cf038b4b6cd64b1a40ac390096203b8731fc

            SHA512

            184e3076e128f985a77ad3e5798de00c67ee8565b85efb7180572277060cf99aa76cc8132735101e0f00086a06e4f77b7e5e284b44eafec1587a2b6c3380a857

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            52c5fcbca9577a8eb18fc3c1b7d95836

            SHA1

            f6ca07c7ece0a85139a706fd66c6fd87e75740f5

            SHA256

            9d57090f7427aba2c924edaefa38cf038b4b6cd64b1a40ac390096203b8731fc

            SHA512

            184e3076e128f985a77ad3e5798de00c67ee8565b85efb7180572277060cf99aa76cc8132735101e0f00086a06e4f77b7e5e284b44eafec1587a2b6c3380a857

          • \Users\Admin\AppData\Local\Temp\nsd475F.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd475F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd475F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd475F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd475F.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cf9f6a432c8b69be3f73d49b2955096b

            SHA1

            b7f8c4769216cb4652467e3bd0aa4061729489d0

            SHA256

            2b379b0f3f0084281b1765b2139051f6390ba3020bfb7abbb76d62dacae63e34

            SHA512

            5486799cfa78465d839219b710d3c4fb95c0b8dd35b71ab915d12008cf732a276e7f73047390c79f772f38f190e84ef0a24a13af5c67a9cec1ab21362852603a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cf9f6a432c8b69be3f73d49b2955096b

            SHA1

            b7f8c4769216cb4652467e3bd0aa4061729489d0

            SHA256

            2b379b0f3f0084281b1765b2139051f6390ba3020bfb7abbb76d62dacae63e34

            SHA512

            5486799cfa78465d839219b710d3c4fb95c0b8dd35b71ab915d12008cf732a276e7f73047390c79f772f38f190e84ef0a24a13af5c67a9cec1ab21362852603a

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            cf9f6a432c8b69be3f73d49b2955096b

            SHA1

            b7f8c4769216cb4652467e3bd0aa4061729489d0

            SHA256

            2b379b0f3f0084281b1765b2139051f6390ba3020bfb7abbb76d62dacae63e34

            SHA512

            5486799cfa78465d839219b710d3c4fb95c0b8dd35b71ab915d12008cf732a276e7f73047390c79f772f38f190e84ef0a24a13af5c67a9cec1ab21362852603a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5ac0cb78065b8d42ce1e5430afe8aa5b

            SHA1

            734dbbc3f94c139df65ffdb580cf32dfbe2d6ed2

            SHA256

            0a09b528f4cd5a73b2c88ffcc00cf03a47c963647b92aa4d868dd9cc53cd3c55

            SHA512

            19218d49839fa4127a19cf2f37cdaa6a97cbfeb3ab0bfef892a0669ddad9a1b402397abc767d0b4866cb7a0b7184c606723f468832f1adb680b1165947b103c6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5ac0cb78065b8d42ce1e5430afe8aa5b

            SHA1

            734dbbc3f94c139df65ffdb580cf32dfbe2d6ed2

            SHA256

            0a09b528f4cd5a73b2c88ffcc00cf03a47c963647b92aa4d868dd9cc53cd3c55

            SHA512

            19218d49839fa4127a19cf2f37cdaa6a97cbfeb3ab0bfef892a0669ddad9a1b402397abc767d0b4866cb7a0b7184c606723f468832f1adb680b1165947b103c6

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            4ee5aa5cf86c1a3aefdb497f833abdd8

            SHA1

            741a4a7b750cf746e0bca65076ef2a34779c6dc1

            SHA256

            3fbb4da0d1ba729b9c106f1870b47670cfa00530659594e1c5981e91a2cb37f5

            SHA512

            0845d377b525150355f04b0d29bebae723b1061eb384bbfe4ff43ea982da7ae9eef304e0567222483e4bd78cde438fb984d8a0f5019b9fa02e8fdf80d1173b9a

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            34c620d4f12e64f3796de72f13f0e906

            SHA1

            f2e7363e72d4542589c6f706fd7b75e43b1f0894

            SHA256

            c581559471f74b55d9b2690dcfca01970a2e980cf97ddbbe00317edabfa56d92

            SHA512

            75fc6e5fa816343925ad164108985719624c03df23068b559b630f0dc93f99df7e5bd94c682360dd57f0fb46e2ed48d706ff63d55440d9ccf9e2cfdc303609e5

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            52c5fcbca9577a8eb18fc3c1b7d95836

            SHA1

            f6ca07c7ece0a85139a706fd66c6fd87e75740f5

            SHA256

            9d57090f7427aba2c924edaefa38cf038b4b6cd64b1a40ac390096203b8731fc

            SHA512

            184e3076e128f985a77ad3e5798de00c67ee8565b85efb7180572277060cf99aa76cc8132735101e0f00086a06e4f77b7e5e284b44eafec1587a2b6c3380a857

          • memory/440-70-0x0000000000000000-mapping.dmp

          • memory/840-87-0x0000000000000000-mapping.dmp

          • memory/872-80-0x0000000000000000-mapping.dmp

          • memory/1060-81-0x0000000000000000-mapping.dmp

          • memory/1300-86-0x0000000000000000-mapping.dmp

          • memory/1624-54-0x00000000753C1000-0x00000000753C3000-memory.dmp

            Filesize

            8KB

          • memory/1624-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1624-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1736-61-0x0000000000000000-mapping.dmp

          • memory/1740-58-0x0000000000000000-mapping.dmp

          • memory/1896-76-0x0000000000000000-mapping.dmp

          • memory/1980-64-0x0000000000000000-mapping.dmp

          • memory/2012-60-0x0000000000000000-mapping.dmp

          • memory/2044-57-0x0000000000000000-mapping.dmp