Analysis

  • max time kernel
    103s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:14

General

  • Target

    b80c8a6409add8d3b1cfdc8c7ed279e368fcba94ec7e7958aab4d87574ff1994.exe

  • Size

    603KB

  • MD5

    f1ba655150aefee52057055b05feb016

  • SHA1

    d164bbe997ef59e93412e4b4e1be601254160b1d

  • SHA256

    b80c8a6409add8d3b1cfdc8c7ed279e368fcba94ec7e7958aab4d87574ff1994

  • SHA512

    2e874e6a33928603c889af65e0ee13c51b3fcfb8bdabdadcaaddd17316c9ad27eaea17cd1cb8f694c3ebad4098e25614db9062f80ff1af357867bb424496a93c

  • SSDEEP

    12288:pIny5DYTip0oVp1GdS1RRf9Q7M2KXKKGErvv8CI0xMEMrj:FUTX4adIR1Q7QXKdGcCI0xME

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\b80c8a6409add8d3b1cfdc8c7ed279e368fcba94ec7e7958aab4d87574ff1994.exe
    "C:\Users\Admin\AppData\Local\Temp\b80c8a6409add8d3b1cfdc8c7ed279e368fcba94ec7e7958aab4d87574ff1994.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:908
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:672
      • 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:368
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1960
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:304
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:628
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1324
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1972
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1524
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1620
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1720
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:956
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1996

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            106KB

            MD5

            39712f7d51771f50a186f9104434d94f

            SHA1

            54e73c80b091635e0df215b95a311060878ba6f7

            SHA256

            d694f6ad20273d9cbf8b0696032e722213132bc928677c9954aabe600fdb76a1

            SHA512

            20f0ea91f08a096ada229320d69202a5f68834dde99fa15cd203bf36e5e6262469fddc7c4bb9a7520548e0318411f38078aeaaba013ade91081ffb35101adece

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

            244KB

            MD5

            774bd6369b7fc1820d31add0d673f5a3

            SHA1

            c8e493433c48537e789e4d7304fc4b0640bfb469

            SHA256

            0dcaea53b0698fcb4c7d035d051de6fd137b7c5aa498c491813173f7e97e3da9

            SHA512

            dc6358cfa537eb5b5ceeb350047a4169aa8e7dd2432032c6606bdfe761c2992dfd930defb7f9da8e8067301e52b175688622d9fc892f0e32a004fdd4d1427512

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

            108KB

            MD5

            3d877750f29c9ac6e8ab1b776cbd43a4

            SHA1

            753599dbafebc13a823f7bc79aa90826658f00b5

            SHA256

            ad8b0c6e9d15d635d23f6269cc789ce22ff931f5cceee18866649080c1207e19

            SHA512

            43bbdeffd744e8e8c68cbba563ffc05a9e16e74f1bf0cd41d91acb81d963e1608a9c728fcc0d5694c2b8318b483113bfa8bfae9e5a7fc91ac67ca3a0746c8efe

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

            176KB

            MD5

            3e73b2de179b412e9bec57c04bfb129d

            SHA1

            f420cc7fe25e2a7c562c649fe07dd2dac402c076

            SHA256

            19e113141e417160aa071153efb88cce91e16c8785475fc3801083c65bbf4551

            SHA512

            174c48c6d7fb9a7901e339a24541bb9bfe5d42438f674dbee2cfee269147c75e503d93ec663e1b2dd2915639a41e203ccb9e8a30ce66498e1eea613e5f5b5a13

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

            176KB

            MD5

            3e73b2de179b412e9bec57c04bfb129d

            SHA1

            f420cc7fe25e2a7c562c649fe07dd2dac402c076

            SHA256

            19e113141e417160aa071153efb88cce91e16c8785475fc3801083c65bbf4551

            SHA512

            174c48c6d7fb9a7901e339a24541bb9bfe5d42438f674dbee2cfee269147c75e503d93ec663e1b2dd2915639a41e203ccb9e8a30ce66498e1eea613e5f5b5a13

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

            158KB

            MD5

            4d9cc1a817d7590b275237606c9dbd29

            SHA1

            ccf5ac3edc1cc21a1f9604931d51c27c57a36c9d

            SHA256

            215b13652e34f48ef73d4f5da95bfe166b9655df1aa1893db30481b2432c731c

            SHA512

            7b0fcf3063d3a82705f6b58d1d3afa558410125eae08947370e22b8a502db63f42bc35b1cbad96b4fc73861ccbdda53685df7a46308d3dff92d25b34056e6381

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

            158KB

            MD5

            4d9cc1a817d7590b275237606c9dbd29

            SHA1

            ccf5ac3edc1cc21a1f9604931d51c27c57a36c9d

            SHA256

            215b13652e34f48ef73d4f5da95bfe166b9655df1aa1893db30481b2432c731c

            SHA512

            7b0fcf3063d3a82705f6b58d1d3afa558410125eae08947370e22b8a502db63f42bc35b1cbad96b4fc73861ccbdda53685df7a46308d3dff92d25b34056e6381

          • \Users\Admin\AppData\Local\Temp\nso3E1C.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso3E1C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso3E1C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso3E1C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso3E1C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            39712f7d51771f50a186f9104434d94f

            SHA1

            54e73c80b091635e0df215b95a311060878ba6f7

            SHA256

            d694f6ad20273d9cbf8b0696032e722213132bc928677c9954aabe600fdb76a1

            SHA512

            20f0ea91f08a096ada229320d69202a5f68834dde99fa15cd203bf36e5e6262469fddc7c4bb9a7520548e0318411f38078aeaaba013ade91081ffb35101adece

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            39712f7d51771f50a186f9104434d94f

            SHA1

            54e73c80b091635e0df215b95a311060878ba6f7

            SHA256

            d694f6ad20273d9cbf8b0696032e722213132bc928677c9954aabe600fdb76a1

            SHA512

            20f0ea91f08a096ada229320d69202a5f68834dde99fa15cd203bf36e5e6262469fddc7c4bb9a7520548e0318411f38078aeaaba013ade91081ffb35101adece

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            39712f7d51771f50a186f9104434d94f

            SHA1

            54e73c80b091635e0df215b95a311060878ba6f7

            SHA256

            d694f6ad20273d9cbf8b0696032e722213132bc928677c9954aabe600fdb76a1

            SHA512

            20f0ea91f08a096ada229320d69202a5f68834dde99fa15cd203bf36e5e6262469fddc7c4bb9a7520548e0318411f38078aeaaba013ade91081ffb35101adece

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            774bd6369b7fc1820d31add0d673f5a3

            SHA1

            c8e493433c48537e789e4d7304fc4b0640bfb469

            SHA256

            0dcaea53b0698fcb4c7d035d051de6fd137b7c5aa498c491813173f7e97e3da9

            SHA512

            dc6358cfa537eb5b5ceeb350047a4169aa8e7dd2432032c6606bdfe761c2992dfd930defb7f9da8e8067301e52b175688622d9fc892f0e32a004fdd4d1427512

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            774bd6369b7fc1820d31add0d673f5a3

            SHA1

            c8e493433c48537e789e4d7304fc4b0640bfb469

            SHA256

            0dcaea53b0698fcb4c7d035d051de6fd137b7c5aa498c491813173f7e97e3da9

            SHA512

            dc6358cfa537eb5b5ceeb350047a4169aa8e7dd2432032c6606bdfe761c2992dfd930defb7f9da8e8067301e52b175688622d9fc892f0e32a004fdd4d1427512

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            3d877750f29c9ac6e8ab1b776cbd43a4

            SHA1

            753599dbafebc13a823f7bc79aa90826658f00b5

            SHA256

            ad8b0c6e9d15d635d23f6269cc789ce22ff931f5cceee18866649080c1207e19

            SHA512

            43bbdeffd744e8e8c68cbba563ffc05a9e16e74f1bf0cd41d91acb81d963e1608a9c728fcc0d5694c2b8318b483113bfa8bfae9e5a7fc91ac67ca3a0746c8efe

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            3e73b2de179b412e9bec57c04bfb129d

            SHA1

            f420cc7fe25e2a7c562c649fe07dd2dac402c076

            SHA256

            19e113141e417160aa071153efb88cce91e16c8785475fc3801083c65bbf4551

            SHA512

            174c48c6d7fb9a7901e339a24541bb9bfe5d42438f674dbee2cfee269147c75e503d93ec663e1b2dd2915639a41e203ccb9e8a30ce66498e1eea613e5f5b5a13

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            4d9cc1a817d7590b275237606c9dbd29

            SHA1

            ccf5ac3edc1cc21a1f9604931d51c27c57a36c9d

            SHA256

            215b13652e34f48ef73d4f5da95bfe166b9655df1aa1893db30481b2432c731c

            SHA512

            7b0fcf3063d3a82705f6b58d1d3afa558410125eae08947370e22b8a502db63f42bc35b1cbad96b4fc73861ccbdda53685df7a46308d3dff92d25b34056e6381

          • memory/304-64-0x0000000000000000-mapping.dmp
          • memory/368-61-0x0000000000000000-mapping.dmp
          • memory/628-70-0x0000000000000000-mapping.dmp
          • memory/672-58-0x0000000000000000-mapping.dmp
          • memory/908-54-0x0000000075DA1000-0x0000000075DA3000-memory.dmp
            Filesize

            8KB

          • memory/908-75-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/908-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/908-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1324-77-0x0000000000000000-mapping.dmp
          • memory/1524-82-0x0000000000000000-mapping.dmp
          • memory/1620-87-0x0000000000000000-mapping.dmp
          • memory/1720-88-0x0000000000000000-mapping.dmp
          • memory/1920-59-0x0000000000000000-mapping.dmp
          • memory/1960-62-0x0000000000000000-mapping.dmp
          • memory/1972-81-0x0000000000000000-mapping.dmp