Analysis

  • max time kernel
    192s
  • max time network
    181s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:50

General

  • Target

    f22c0615f1889e05a4914d65edfe2393b74f1906014520a8fc0ae1b322895934.exe

  • Size

    446KB

  • MD5

    5dec19bd11c592a8919a8f92fb033bbb

  • SHA1

    f697c53df575481053f4013fb080426809978509

  • SHA256

    f22c0615f1889e05a4914d65edfe2393b74f1906014520a8fc0ae1b322895934

  • SHA512

    ae451bdf3b1d31cea1186d4c1558d3c616f65a3cfa02fa2e5db087295f6f2a79ce0199f36ba7fd3038be1882307abe617593aa5d0aabf77e681ef077477abe4a

  • SSDEEP

    12288:P+r5AP/XOrsKJEM55/WKU+ZUOgOPyLozowgwLwLDk7n91:Pp/Xej5Fg+Z4OP0bOwLDO1

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f22c0615f1889e05a4914d65edfe2393b74f1906014520a8fc0ae1b322895934.exe
    "C:\Users\Admin\AppData\Local\Temp\f22c0615f1889e05a4914d65edfe2393b74f1906014520a8fc0ae1b322895934.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:1284
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:32
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1920
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1968
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4208
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2336
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4612
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3084
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3360
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4480
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4736
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3916
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:5012
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4980

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn2750.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            df3819a077553fb3212c0c0214707619

            SHA1

            9b2243ccbeb26877385d7f5877ecd99edac93c89

            SHA256

            46a915733ba2d1cd4d6b3d34686c138df2e94baae266b7b38bcf70e4a48a2196

            SHA512

            2b341834d2a6dc7c97b23c2efc0b8edce3dacf2750ea18aafd2f9b5c079f0a8bce5f6acd517b86703646e418f500f3ae24e3a609ea14597a31bb005a25568b69

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

            106KB

            MD5

            df3819a077553fb3212c0c0214707619

            SHA1

            9b2243ccbeb26877385d7f5877ecd99edac93c89

            SHA256

            46a915733ba2d1cd4d6b3d34686c138df2e94baae266b7b38bcf70e4a48a2196

            SHA512

            2b341834d2a6dc7c97b23c2efc0b8edce3dacf2750ea18aafd2f9b5c079f0a8bce5f6acd517b86703646e418f500f3ae24e3a609ea14597a31bb005a25568b69

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

            106KB

            MD5

            df3819a077553fb3212c0c0214707619

            SHA1

            9b2243ccbeb26877385d7f5877ecd99edac93c89

            SHA256

            46a915733ba2d1cd4d6b3d34686c138df2e94baae266b7b38bcf70e4a48a2196

            SHA512

            2b341834d2a6dc7c97b23c2efc0b8edce3dacf2750ea18aafd2f9b5c079f0a8bce5f6acd517b86703646e418f500f3ae24e3a609ea14597a31bb005a25568b69

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

            106KB

            MD5

            df3819a077553fb3212c0c0214707619

            SHA1

            9b2243ccbeb26877385d7f5877ecd99edac93c89

            SHA256

            46a915733ba2d1cd4d6b3d34686c138df2e94baae266b7b38bcf70e4a48a2196

            SHA512

            2b341834d2a6dc7c97b23c2efc0b8edce3dacf2750ea18aafd2f9b5c079f0a8bce5f6acd517b86703646e418f500f3ae24e3a609ea14597a31bb005a25568b69

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

            244KB

            MD5

            19090367bfeb52723485e2a78aa7cc6b

            SHA1

            f4c6e2cbbfc9aa2a0d8185ffd05a820dce186ead

            SHA256

            25c7396b38208a835bd913bf9527728b1e78968f917e463667445371cd6017b0

            SHA512

            eb8dc9bfdb9fecef47d23f64f84b822873a88ac9bd08f2cd4da85a231880ed10482fba0afdcebe093c919d93e01cb4685191868d3f4360d466903b3ddc164f4b

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

            244KB

            MD5

            19090367bfeb52723485e2a78aa7cc6b

            SHA1

            f4c6e2cbbfc9aa2a0d8185ffd05a820dce186ead

            SHA256

            25c7396b38208a835bd913bf9527728b1e78968f917e463667445371cd6017b0

            SHA512

            eb8dc9bfdb9fecef47d23f64f84b822873a88ac9bd08f2cd4da85a231880ed10482fba0afdcebe093c919d93e01cb4685191868d3f4360d466903b3ddc164f4b

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

            244KB

            MD5

            19090367bfeb52723485e2a78aa7cc6b

            SHA1

            f4c6e2cbbfc9aa2a0d8185ffd05a820dce186ead

            SHA256

            25c7396b38208a835bd913bf9527728b1e78968f917e463667445371cd6017b0

            SHA512

            eb8dc9bfdb9fecef47d23f64f84b822873a88ac9bd08f2cd4da85a231880ed10482fba0afdcebe093c919d93e01cb4685191868d3f4360d466903b3ddc164f4b

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

            108KB

            MD5

            dd84a9f106d5b038263eef7057d0af35

            SHA1

            9d34eb179ad2d4baaed5b572b4927096d7312803

            SHA256

            b4d1b01b2423b62732d6b58ce39cf7a782b1cdae30352dc9022447cc55613899

            SHA512

            9d969e11f5bcad0d6e7df47176867c64559bab8882faad191ec4fee5fa6b5b3eb0513fbc0115f4cf49003e9cd007ffbf7373a9be788e55ad8eb7628d2d294e1a

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

            108KB

            MD5

            dd84a9f106d5b038263eef7057d0af35

            SHA1

            9d34eb179ad2d4baaed5b572b4927096d7312803

            SHA256

            b4d1b01b2423b62732d6b58ce39cf7a782b1cdae30352dc9022447cc55613899

            SHA512

            9d969e11f5bcad0d6e7df47176867c64559bab8882faad191ec4fee5fa6b5b3eb0513fbc0115f4cf49003e9cd007ffbf7373a9be788e55ad8eb7628d2d294e1a

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

            176KB

            MD5

            179788a7a640fdcde94134a866864906

            SHA1

            650a6fd1c166b4281eefba4c931bd6ad34940a0c

            SHA256

            38a0a5a69947fe5f92346f9bc318fc823dc2dd6f27bc5ddca157f917e753df69

            SHA512

            8b731077478454fcdb02350375061e44b61bec26da4593fd3c1852e3ada703411525e01f292249d6dcc81bdeabef89b41f5cff0acc4c4324f790eca7ab63b9a2

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

            176KB

            MD5

            179788a7a640fdcde94134a866864906

            SHA1

            650a6fd1c166b4281eefba4c931bd6ad34940a0c

            SHA256

            38a0a5a69947fe5f92346f9bc318fc823dc2dd6f27bc5ddca157f917e753df69

            SHA512

            8b731077478454fcdb02350375061e44b61bec26da4593fd3c1852e3ada703411525e01f292249d6dcc81bdeabef89b41f5cff0acc4c4324f790eca7ab63b9a2

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

            176KB

            MD5

            179788a7a640fdcde94134a866864906

            SHA1

            650a6fd1c166b4281eefba4c931bd6ad34940a0c

            SHA256

            38a0a5a69947fe5f92346f9bc318fc823dc2dd6f27bc5ddca157f917e753df69

            SHA512

            8b731077478454fcdb02350375061e44b61bec26da4593fd3c1852e3ada703411525e01f292249d6dcc81bdeabef89b41f5cff0acc4c4324f790eca7ab63b9a2

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

            158KB

            MD5

            e08eaf57389173e27c23f676af94cb77

            SHA1

            279aea7892795ee4189aeb8ab7202ed8ff1a4b4c

            SHA256

            1491064db062e60022286b78599ae4cc1ab30392214f08702f3b8d54af0ae327

            SHA512

            6062dbc1f961a85be1af35c48ced0fff02e94cbcc676ec17d7ff6f09b6651e24855367fff22d7b932fa3ce32f9981338b2bb9ec850bf4e6f94a10e74c4d60d54

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

            158KB

            MD5

            e08eaf57389173e27c23f676af94cb77

            SHA1

            279aea7892795ee4189aeb8ab7202ed8ff1a4b4c

            SHA256

            1491064db062e60022286b78599ae4cc1ab30392214f08702f3b8d54af0ae327

            SHA512

            6062dbc1f961a85be1af35c48ced0fff02e94cbcc676ec17d7ff6f09b6651e24855367fff22d7b932fa3ce32f9981338b2bb9ec850bf4e6f94a10e74c4d60d54

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

            158KB

            MD5

            e08eaf57389173e27c23f676af94cb77

            SHA1

            279aea7892795ee4189aeb8ab7202ed8ff1a4b4c

            SHA256

            1491064db062e60022286b78599ae4cc1ab30392214f08702f3b8d54af0ae327

            SHA512

            6062dbc1f961a85be1af35c48ced0fff02e94cbcc676ec17d7ff6f09b6651e24855367fff22d7b932fa3ce32f9981338b2bb9ec850bf4e6f94a10e74c4d60d54

          • memory/32-135-0x0000000000000000-mapping.dmp
          • memory/1920-136-0x0000000000000000-mapping.dmp
          • memory/1968-139-0x0000000000000000-mapping.dmp
          • memory/2336-141-0x0000000000000000-mapping.dmp
          • memory/3084-152-0x0000000000000000-mapping.dmp
          • memory/3360-157-0x0000000000000000-mapping.dmp
          • memory/3916-165-0x0000000000000000-mapping.dmp
          • memory/4208-140-0x0000000000000000-mapping.dmp
          • memory/4480-158-0x0000000000000000-mapping.dmp
          • memory/4612-146-0x0000000000000000-mapping.dmp
          • memory/4736-164-0x0000000000000000-mapping.dmp