Analysis

  • max time kernel
    23s
  • 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 10:34

General

  • Target

    0887298f1b73d2d205b1dda8fba1ca4c751df33f280ad80d423737cfebb21c21.exe

  • Size

    602KB

  • MD5

    feda77a30dece5fe9390bd6b91651417

  • SHA1

    34b3a9ebb556b5a524fbd295eae75b536a269896

  • SHA256

    0887298f1b73d2d205b1dda8fba1ca4c751df33f280ad80d423737cfebb21c21

  • SHA512

    dc6f5eec77995968e446b61b4760944cdeb0892e7c6531c03d69b7868e0822d147d2985f9b8c77c9177d22f9a63942d5577af25e532c108e56553b0fb4cf336a

  • SSDEEP

    12288:mIny5DYT0INiHamwOKaSmgXJvhhIvzu1FmTcazJj2Hq2mCS10Hv1:IUT0Dw0SmgXlhfIBGLH9

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\0887298f1b73d2d205b1dda8fba1ca4c751df33f280ad80d423737cfebb21c21.exe
    "C:\Users\Admin\AppData\Local\Temp\0887298f1b73d2d205b1dda8fba1ca4c751df33f280ad80d423737cfebb21c21.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:1988
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:948
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1760
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1440
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1284
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2008
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:624
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1544
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2000
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1652
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2044
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1964
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:744
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:324

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dc09528023230bbe48a6c557d24b84bf

            SHA1

            d3a20f794424f1ef518a8c19063b656a84556147

            SHA256

            ff32f03f967edb3fad8d2e216bb9f0b9b052330eabe5e15dfcccc6a6ad2c4397

            SHA512

            367a6de264ad4f79fdc4390766914de2943033dbaffaba6f8230017eec207573cd9f95b8a3cd970de2277688bceb2ac78de362ae41ce603414230f044250a90b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e103109bbf459ab6f1f38e3b817957b6

            SHA1

            16a5ae472df85c3f8f097413227a057a2167f403

            SHA256

            13bbd8dcf9e874f6be6207c93254e9822b77b99da5b0cdacaad2c0a2408e15f5

            SHA512

            f8162814a387eb0efda35c2f0efdc25bf6c62ad730662289f462ade8b6cf165fb7fe1fca48b212a645e1b156b142ad56dc63cb1a8dfc48e784260d28bc606355

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            37b2755f3570d90ce41bdb6c10344f1e

            SHA1

            ea6db31f115c4819d22c7da0c47922d87a363cf4

            SHA256

            2c3d676d8fcd6611b55b0a53052d7cd00d41bf09545713dd3a42c9060525ac67

            SHA512

            907ef38f399a819d529cdbee945d191f4a7f85e5289c162ca76bb8a32e9918235138dd431d971c43bb3143976e3f775296fc6659ba525c6487a7b58b4a0c86f9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6801ae98d1f7b5e9e8a1718e7051f88e

            SHA1

            f483c860aa2ae1b650e7150aeba3efbd9e56059b

            SHA256

            38f1a3ae3fedde399a41cf8c536ae96919957c718bf82339b8b0ad00a8b61357

            SHA512

            e0cc7b711b4dccb000847bd4bc2a490e13d63015789b9d46a2550e35c649c276ccc6419dd3f9a056395492b160dbf8cf1316c5d37a9c8c37b441df98f29a779d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6801ae98d1f7b5e9e8a1718e7051f88e

            SHA1

            f483c860aa2ae1b650e7150aeba3efbd9e56059b

            SHA256

            38f1a3ae3fedde399a41cf8c536ae96919957c718bf82339b8b0ad00a8b61357

            SHA512

            e0cc7b711b4dccb000847bd4bc2a490e13d63015789b9d46a2550e35c649c276ccc6419dd3f9a056395492b160dbf8cf1316c5d37a9c8c37b441df98f29a779d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            997f8e4028c8e7fd02926efe9b12cb38

            SHA1

            522b12a0e4b2164a93c1aa89965666321031328c

            SHA256

            63b92b77c7fb43790ed98aa29eb3cd41f3f2c234466140cb7ede20ded328a840

            SHA512

            59b3b87a09796c9bb0e7f2e3f201c3637ab3cc405b63c500a70f6dcce9f53f84a50bc9e1cb8c1c5a4a206c87fa48d71f0dad8967e0107d55236e35b75a736a04

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            997f8e4028c8e7fd02926efe9b12cb38

            SHA1

            522b12a0e4b2164a93c1aa89965666321031328c

            SHA256

            63b92b77c7fb43790ed98aa29eb3cd41f3f2c234466140cb7ede20ded328a840

            SHA512

            59b3b87a09796c9bb0e7f2e3f201c3637ab3cc405b63c500a70f6dcce9f53f84a50bc9e1cb8c1c5a4a206c87fa48d71f0dad8967e0107d55236e35b75a736a04

          • \Users\Admin\AppData\Local\Temp\nst4C9D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst4C9D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst4C9D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst4C9D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst4C9D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dc09528023230bbe48a6c557d24b84bf

            SHA1

            d3a20f794424f1ef518a8c19063b656a84556147

            SHA256

            ff32f03f967edb3fad8d2e216bb9f0b9b052330eabe5e15dfcccc6a6ad2c4397

            SHA512

            367a6de264ad4f79fdc4390766914de2943033dbaffaba6f8230017eec207573cd9f95b8a3cd970de2277688bceb2ac78de362ae41ce603414230f044250a90b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dc09528023230bbe48a6c557d24b84bf

            SHA1

            d3a20f794424f1ef518a8c19063b656a84556147

            SHA256

            ff32f03f967edb3fad8d2e216bb9f0b9b052330eabe5e15dfcccc6a6ad2c4397

            SHA512

            367a6de264ad4f79fdc4390766914de2943033dbaffaba6f8230017eec207573cd9f95b8a3cd970de2277688bceb2ac78de362ae41ce603414230f044250a90b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dc09528023230bbe48a6c557d24b84bf

            SHA1

            d3a20f794424f1ef518a8c19063b656a84556147

            SHA256

            ff32f03f967edb3fad8d2e216bb9f0b9b052330eabe5e15dfcccc6a6ad2c4397

            SHA512

            367a6de264ad4f79fdc4390766914de2943033dbaffaba6f8230017eec207573cd9f95b8a3cd970de2277688bceb2ac78de362ae41ce603414230f044250a90b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e103109bbf459ab6f1f38e3b817957b6

            SHA1

            16a5ae472df85c3f8f097413227a057a2167f403

            SHA256

            13bbd8dcf9e874f6be6207c93254e9822b77b99da5b0cdacaad2c0a2408e15f5

            SHA512

            f8162814a387eb0efda35c2f0efdc25bf6c62ad730662289f462ade8b6cf165fb7fe1fca48b212a645e1b156b142ad56dc63cb1a8dfc48e784260d28bc606355

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            e103109bbf459ab6f1f38e3b817957b6

            SHA1

            16a5ae472df85c3f8f097413227a057a2167f403

            SHA256

            13bbd8dcf9e874f6be6207c93254e9822b77b99da5b0cdacaad2c0a2408e15f5

            SHA512

            f8162814a387eb0efda35c2f0efdc25bf6c62ad730662289f462ade8b6cf165fb7fe1fca48b212a645e1b156b142ad56dc63cb1a8dfc48e784260d28bc606355

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            37b2755f3570d90ce41bdb6c10344f1e

            SHA1

            ea6db31f115c4819d22c7da0c47922d87a363cf4

            SHA256

            2c3d676d8fcd6611b55b0a53052d7cd00d41bf09545713dd3a42c9060525ac67

            SHA512

            907ef38f399a819d529cdbee945d191f4a7f85e5289c162ca76bb8a32e9918235138dd431d971c43bb3143976e3f775296fc6659ba525c6487a7b58b4a0c86f9

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6801ae98d1f7b5e9e8a1718e7051f88e

            SHA1

            f483c860aa2ae1b650e7150aeba3efbd9e56059b

            SHA256

            38f1a3ae3fedde399a41cf8c536ae96919957c718bf82339b8b0ad00a8b61357

            SHA512

            e0cc7b711b4dccb000847bd4bc2a490e13d63015789b9d46a2550e35c649c276ccc6419dd3f9a056395492b160dbf8cf1316c5d37a9c8c37b441df98f29a779d

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            997f8e4028c8e7fd02926efe9b12cb38

            SHA1

            522b12a0e4b2164a93c1aa89965666321031328c

            SHA256

            63b92b77c7fb43790ed98aa29eb3cd41f3f2c234466140cb7ede20ded328a840

            SHA512

            59b3b87a09796c9bb0e7f2e3f201c3637ab3cc405b63c500a70f6dcce9f53f84a50bc9e1cb8c1c5a4a206c87fa48d71f0dad8967e0107d55236e35b75a736a04

          • memory/624-70-0x0000000000000000-mapping.dmp

          • memory/948-57-0x0000000000000000-mapping.dmp

          • memory/1284-62-0x0000000000000000-mapping.dmp

          • memory/1440-61-0x0000000000000000-mapping.dmp

          • memory/1544-76-0x0000000000000000-mapping.dmp

          • memory/1652-81-0x0000000000000000-mapping.dmp

          • memory/1760-58-0x0000000000000000-mapping.dmp

          • memory/1964-87-0x0000000000000000-mapping.dmp

          • memory/1988-54-0x0000000076171000-0x0000000076173000-memory.dmp

            Filesize

            8KB

          • memory/1988-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1988-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2000-80-0x0000000000000000-mapping.dmp

          • memory/2008-64-0x0000000000000000-mapping.dmp

          • memory/2044-86-0x0000000000000000-mapping.dmp