Analysis

  • max time kernel
    41s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 13:28

General

  • Target

    edecfd141ec9272948155b6f5c633094e10600be33631d0220f6c69ef166f727.exe

  • Size

    562KB

  • MD5

    9f10bbe235b379289d3d43eb6f16e9dc

  • SHA1

    554f562a6b2ef9639a95fe01d59b0e69b823058b

  • SHA256

    edecfd141ec9272948155b6f5c633094e10600be33631d0220f6c69ef166f727

  • SHA512

    4d1e2a232f60e3f52bc23d185a7859aa262ee9125e1fa6b10a72319c66e8af96e355c64c2c47da63229231a14360729a8079d7333012ae285a8e3bfbda55d618

  • SSDEEP

    12288:dPRYzJbf+crv7AZUvZUoVCTgduum++YZDBmoTN9B/tcET799f:kz9frrv7XvZUKmgduuiYXmoTJWETR

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\edecfd141ec9272948155b6f5c633094e10600be33631d0220f6c69ef166f727.exe
    "C:\Users\Admin\AppData\Local\Temp\edecfd141ec9272948155b6f5c633094e10600be33631d0220f6c69ef166f727.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:868
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1756
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1904
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1436
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1880
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1056
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1656
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1528
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1196
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1028
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1660
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:468

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7930d5549551c6dc3e116a9fe74fb40

            SHA1

            72284fffefc4ec987d5d3359ca6534615b06e5c4

            SHA256

            fe067da6cea5c13bebdcfb1b1cdbbc963f421ad9d028274a4bb1a3750c4d5c07

            SHA512

            70602519f43ff24898a7129be111d86fc70635a6681426f316e5df245bc93e6df16a6fd6295df0b5834b9047ce80d655b00d82c4a3cbe8e70bd9b4226b703ff7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4fe2edcb7c94de058985f320c00bb26a

            SHA1

            77185828d83ec355890646d60ffe81778e53cde6

            SHA256

            1030a66f0810c7187d4095176fa4a867f2b4ee26bb0c8139ddfd360a64ba6272

            SHA512

            5f2bd90bfd52ed93a199e1f70767e423bc88fab7de24acadfaefff7cb659bb28991f0528f2e87ccedfaaebb44d8b651c1c380e724f9dc963fb4e0d6a826a7f92

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ee444c583e74a0b219c91c3d3f079018

            SHA1

            bd46133e59d77f654f6b5a46722bd52f0a990774

            SHA256

            785c750e4f869d966a4f983a406bfe30b8e9e9f40732e13a4061965d8e60b0e5

            SHA512

            53303dc50b74b17697371f77df83414f425b1fd965134ec3b2ec7b3332556cbcba20d8950f089bf03f32bbbbe7cbbfb16d6bfd4eade695e19d2806a592ebb9c5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9f2b6a5fcac356475186e42300118905

            SHA1

            0ca9a8c7b034b37103908c71b0b8961696ffc110

            SHA256

            27d1d2426904e3e509f67175fff93cdb67f94cc4543c1684ff2fc66966b535e9

            SHA512

            269426732372fce6067174d4dfb7d099f76769ef7f525399e214048126a894186efb5e3294b44401d0880d9ee4df7560e6754640b29bd9a740ad76f332dd3e30

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9f2b6a5fcac356475186e42300118905

            SHA1

            0ca9a8c7b034b37103908c71b0b8961696ffc110

            SHA256

            27d1d2426904e3e509f67175fff93cdb67f94cc4543c1684ff2fc66966b535e9

            SHA512

            269426732372fce6067174d4dfb7d099f76769ef7f525399e214048126a894186efb5e3294b44401d0880d9ee4df7560e6754640b29bd9a740ad76f332dd3e30

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            be9df6ac1a87691694d25f95c9a03e81

            SHA1

            a70a170b3437ea7cb8ddea6b59416310c4574485

            SHA256

            38573ff71291b37672d336640f8c1ea54907b937a3ba9f96775e5ad74f55492b

            SHA512

            403b78187fb6e7480ad336a0f7f1f0a23f04e98dfd423e1c79c08787c5ffd8c1de0db4aded538d3431f601c6dc688ebf4de21f2b2a895b57c1921a60cb1d4016

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            be9df6ac1a87691694d25f95c9a03e81

            SHA1

            a70a170b3437ea7cb8ddea6b59416310c4574485

            SHA256

            38573ff71291b37672d336640f8c1ea54907b937a3ba9f96775e5ad74f55492b

            SHA512

            403b78187fb6e7480ad336a0f7f1f0a23f04e98dfd423e1c79c08787c5ffd8c1de0db4aded538d3431f601c6dc688ebf4de21f2b2a895b57c1921a60cb1d4016

          • \Users\Admin\AppData\Local\Temp\nsj1EAB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj1EAB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj1EAB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj1EAB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj1EAB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7930d5549551c6dc3e116a9fe74fb40

            SHA1

            72284fffefc4ec987d5d3359ca6534615b06e5c4

            SHA256

            fe067da6cea5c13bebdcfb1b1cdbbc963f421ad9d028274a4bb1a3750c4d5c07

            SHA512

            70602519f43ff24898a7129be111d86fc70635a6681426f316e5df245bc93e6df16a6fd6295df0b5834b9047ce80d655b00d82c4a3cbe8e70bd9b4226b703ff7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7930d5549551c6dc3e116a9fe74fb40

            SHA1

            72284fffefc4ec987d5d3359ca6534615b06e5c4

            SHA256

            fe067da6cea5c13bebdcfb1b1cdbbc963f421ad9d028274a4bb1a3750c4d5c07

            SHA512

            70602519f43ff24898a7129be111d86fc70635a6681426f316e5df245bc93e6df16a6fd6295df0b5834b9047ce80d655b00d82c4a3cbe8e70bd9b4226b703ff7

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f7930d5549551c6dc3e116a9fe74fb40

            SHA1

            72284fffefc4ec987d5d3359ca6534615b06e5c4

            SHA256

            fe067da6cea5c13bebdcfb1b1cdbbc963f421ad9d028274a4bb1a3750c4d5c07

            SHA512

            70602519f43ff24898a7129be111d86fc70635a6681426f316e5df245bc93e6df16a6fd6295df0b5834b9047ce80d655b00d82c4a3cbe8e70bd9b4226b703ff7

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4fe2edcb7c94de058985f320c00bb26a

            SHA1

            77185828d83ec355890646d60ffe81778e53cde6

            SHA256

            1030a66f0810c7187d4095176fa4a867f2b4ee26bb0c8139ddfd360a64ba6272

            SHA512

            5f2bd90bfd52ed93a199e1f70767e423bc88fab7de24acadfaefff7cb659bb28991f0528f2e87ccedfaaebb44d8b651c1c380e724f9dc963fb4e0d6a826a7f92

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4fe2edcb7c94de058985f320c00bb26a

            SHA1

            77185828d83ec355890646d60ffe81778e53cde6

            SHA256

            1030a66f0810c7187d4095176fa4a867f2b4ee26bb0c8139ddfd360a64ba6272

            SHA512

            5f2bd90bfd52ed93a199e1f70767e423bc88fab7de24acadfaefff7cb659bb28991f0528f2e87ccedfaaebb44d8b651c1c380e724f9dc963fb4e0d6a826a7f92

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ee444c583e74a0b219c91c3d3f079018

            SHA1

            bd46133e59d77f654f6b5a46722bd52f0a990774

            SHA256

            785c750e4f869d966a4f983a406bfe30b8e9e9f40732e13a4061965d8e60b0e5

            SHA512

            53303dc50b74b17697371f77df83414f425b1fd965134ec3b2ec7b3332556cbcba20d8950f089bf03f32bbbbe7cbbfb16d6bfd4eade695e19d2806a592ebb9c5

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            9f2b6a5fcac356475186e42300118905

            SHA1

            0ca9a8c7b034b37103908c71b0b8961696ffc110

            SHA256

            27d1d2426904e3e509f67175fff93cdb67f94cc4543c1684ff2fc66966b535e9

            SHA512

            269426732372fce6067174d4dfb7d099f76769ef7f525399e214048126a894186efb5e3294b44401d0880d9ee4df7560e6754640b29bd9a740ad76f332dd3e30

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            be9df6ac1a87691694d25f95c9a03e81

            SHA1

            a70a170b3437ea7cb8ddea6b59416310c4574485

            SHA256

            38573ff71291b37672d336640f8c1ea54907b937a3ba9f96775e5ad74f55492b

            SHA512

            403b78187fb6e7480ad336a0f7f1f0a23f04e98dfd423e1c79c08787c5ffd8c1de0db4aded538d3431f601c6dc688ebf4de21f2b2a895b57c1921a60cb1d4016

          • memory/868-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/868-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/868-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/868-54-0x0000000075131000-0x0000000075133000-memory.dmp

            Filesize

            8KB