Analysis

  • max time kernel
    49s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:24

General

  • Target

    6697642281007146f5a0af6d4ecb5212cf8307aa561fc3a351ff0cd9eedd7bb0.exe

  • Size

    603KB

  • MD5

    935be90473e86ba0f9487923ea5dd44e

  • SHA1

    2bc595fedc5852c71549deb14b0bced60fa7f651

  • SHA256

    6697642281007146f5a0af6d4ecb5212cf8307aa561fc3a351ff0cd9eedd7bb0

  • SHA512

    537114336d50c0a1750b7ba7ced76dc5f2a61b9e5a31ce5fa307594e2fc9e2199f3f5fb2cd5d4bded1a18cb6208393550746b59f55f066c778954c8a474cae5a

  • SSDEEP

    12288:NIny5DYTMIe7Hl3P+H2TyrMDD7rRqivVPNYr/Vj/VuYxkMFGx7bp4Q3+:ZUTM57H5PZXLNPqrl/VuJMe7aQ3+

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\6697642281007146f5a0af6d4ecb5212cf8307aa561fc3a351ff0cd9eedd7bb0.exe
    "C:\Users\Admin\AppData\Local\Temp\6697642281007146f5a0af6d4ecb5212cf8307aa561fc3a351ff0cd9eedd7bb0.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:1416
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:268
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1496
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:568
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1116
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1588
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1092
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2004
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:892
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:360
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1100
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:688
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:928
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2020

          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

            65c3bf53a68191540da67464c005baa5

            SHA1

            545685286c7772cb7315dd7698380846c8681913

            SHA256

            6e1523126620dd00e01c9cd067fa348ce9829e35da5c2fcea3ebfd19e221c49e

            SHA512

            f41112ae4de35a48768fd8b14f8c9c96321720f41d0825937a4f32a584a10e53a75e4cd5e40af8bb3a93893ce2555f6d21766568d0870890aa59dbb63b10beda

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

            244KB

            MD5

            192e99c27bbc3f599a2c110f13b2fac5

            SHA1

            0854e23c79d05de5e86fd1e0945d4ed74fd4e9ab

            SHA256

            20e46e92ce16b281888d97d19dae085c1917b4e520f0d5b336b7e8c2ccc54b27

            SHA512

            aa552f432d0f39dbd86b09a3c7822d14bc8129589b8ec9faf6359d0b5983e2c8eebe7f103edf55d16dc2727005195180553fbd2468fcb4fdf27a65ef0d356497

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

            108KB

            MD5

            7d4a56762aad8954ebe0056eb1bc2b1f

            SHA1

            222ea7d7a999ea598af5d9cb336565bea8ddd317

            SHA256

            bf51cc1ad6754a5575bbccec44f435a41f114bdde5e603b2b03c772eaf583d6a

            SHA512

            323373b6e623fc7669d341f83b8e82036f6fd8135c4c3671a8750b43f6d673e00813ad2c2c8b0998afba08f27e141844c3d0db156180cb29165cc8ceeea9944e

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

            176KB

            MD5

            97e394a65bcf5882634dd786c96b8c92

            SHA1

            3bf6d626624b3d3daf264d6f569ea6ebc3256008

            SHA256

            c2b09efd18bd821b2bde983b24df4cf5e2921af51f6a03143a104fdab4933f6b

            SHA512

            13f4105f23f45da0a77cd19514f4d9d05e2bb595c1c32b738443fe8cbece0e31a3074f124b9a806dd31f6205c29cdb0d6a82176c078a2211faf54761b6326098

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

            176KB

            MD5

            97e394a65bcf5882634dd786c96b8c92

            SHA1

            3bf6d626624b3d3daf264d6f569ea6ebc3256008

            SHA256

            c2b09efd18bd821b2bde983b24df4cf5e2921af51f6a03143a104fdab4933f6b

            SHA512

            13f4105f23f45da0a77cd19514f4d9d05e2bb595c1c32b738443fe8cbece0e31a3074f124b9a806dd31f6205c29cdb0d6a82176c078a2211faf54761b6326098

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

            159KB

            MD5

            10f335215083376bf760c3a0534253af

            SHA1

            881a0a72500320661143be32a410095bab87f463

            SHA256

            833af65c60004b7868e7c1199801cb5b02cba854f6316c63f1472cf09f210af2

            SHA512

            5a60c49f2f881467bfb00815cb11953342f26d8dcc4873a76d9b3e9ab185ecf90f80fc49445f9d3862bf072898745d4aecdcacbc7909099787e1f1097160d46f

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

            159KB

            MD5

            10f335215083376bf760c3a0534253af

            SHA1

            881a0a72500320661143be32a410095bab87f463

            SHA256

            833af65c60004b7868e7c1199801cb5b02cba854f6316c63f1472cf09f210af2

            SHA512

            5a60c49f2f881467bfb00815cb11953342f26d8dcc4873a76d9b3e9ab185ecf90f80fc49445f9d3862bf072898745d4aecdcacbc7909099787e1f1097160d46f

          • \Users\Admin\AppData\Local\Temp\nsoC130.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoC130.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoC130.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoC130.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoC130.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            65c3bf53a68191540da67464c005baa5

            SHA1

            545685286c7772cb7315dd7698380846c8681913

            SHA256

            6e1523126620dd00e01c9cd067fa348ce9829e35da5c2fcea3ebfd19e221c49e

            SHA512

            f41112ae4de35a48768fd8b14f8c9c96321720f41d0825937a4f32a584a10e53a75e4cd5e40af8bb3a93893ce2555f6d21766568d0870890aa59dbb63b10beda

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            65c3bf53a68191540da67464c005baa5

            SHA1

            545685286c7772cb7315dd7698380846c8681913

            SHA256

            6e1523126620dd00e01c9cd067fa348ce9829e35da5c2fcea3ebfd19e221c49e

            SHA512

            f41112ae4de35a48768fd8b14f8c9c96321720f41d0825937a4f32a584a10e53a75e4cd5e40af8bb3a93893ce2555f6d21766568d0870890aa59dbb63b10beda

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            65c3bf53a68191540da67464c005baa5

            SHA1

            545685286c7772cb7315dd7698380846c8681913

            SHA256

            6e1523126620dd00e01c9cd067fa348ce9829e35da5c2fcea3ebfd19e221c49e

            SHA512

            f41112ae4de35a48768fd8b14f8c9c96321720f41d0825937a4f32a584a10e53a75e4cd5e40af8bb3a93893ce2555f6d21766568d0870890aa59dbb63b10beda

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            192e99c27bbc3f599a2c110f13b2fac5

            SHA1

            0854e23c79d05de5e86fd1e0945d4ed74fd4e9ab

            SHA256

            20e46e92ce16b281888d97d19dae085c1917b4e520f0d5b336b7e8c2ccc54b27

            SHA512

            aa552f432d0f39dbd86b09a3c7822d14bc8129589b8ec9faf6359d0b5983e2c8eebe7f103edf55d16dc2727005195180553fbd2468fcb4fdf27a65ef0d356497

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            192e99c27bbc3f599a2c110f13b2fac5

            SHA1

            0854e23c79d05de5e86fd1e0945d4ed74fd4e9ab

            SHA256

            20e46e92ce16b281888d97d19dae085c1917b4e520f0d5b336b7e8c2ccc54b27

            SHA512

            aa552f432d0f39dbd86b09a3c7822d14bc8129589b8ec9faf6359d0b5983e2c8eebe7f103edf55d16dc2727005195180553fbd2468fcb4fdf27a65ef0d356497

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            7d4a56762aad8954ebe0056eb1bc2b1f

            SHA1

            222ea7d7a999ea598af5d9cb336565bea8ddd317

            SHA256

            bf51cc1ad6754a5575bbccec44f435a41f114bdde5e603b2b03c772eaf583d6a

            SHA512

            323373b6e623fc7669d341f83b8e82036f6fd8135c4c3671a8750b43f6d673e00813ad2c2c8b0998afba08f27e141844c3d0db156180cb29165cc8ceeea9944e

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            97e394a65bcf5882634dd786c96b8c92

            SHA1

            3bf6d626624b3d3daf264d6f569ea6ebc3256008

            SHA256

            c2b09efd18bd821b2bde983b24df4cf5e2921af51f6a03143a104fdab4933f6b

            SHA512

            13f4105f23f45da0a77cd19514f4d9d05e2bb595c1c32b738443fe8cbece0e31a3074f124b9a806dd31f6205c29cdb0d6a82176c078a2211faf54761b6326098

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            10f335215083376bf760c3a0534253af

            SHA1

            881a0a72500320661143be32a410095bab87f463

            SHA256

            833af65c60004b7868e7c1199801cb5b02cba854f6316c63f1472cf09f210af2

            SHA512

            5a60c49f2f881467bfb00815cb11953342f26d8dcc4873a76d9b3e9ab185ecf90f80fc49445f9d3862bf072898745d4aecdcacbc7909099787e1f1097160d46f

          • memory/268-57-0x0000000000000000-mapping.dmp
          • memory/360-82-0x0000000000000000-mapping.dmp
          • memory/568-60-0x0000000000000000-mapping.dmp
          • memory/688-88-0x0000000000000000-mapping.dmp
          • memory/892-81-0x0000000000000000-mapping.dmp
          • memory/1092-71-0x0000000000000000-mapping.dmp
          • memory/1100-87-0x0000000000000000-mapping.dmp
          • memory/1116-61-0x0000000000000000-mapping.dmp
          • memory/1416-54-0x0000000075F01000-0x0000000075F03000-memory.dmp
            Filesize

            8KB

          • memory/1416-62-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1416-64-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1416-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1496-58-0x0000000000000000-mapping.dmp
          • memory/1588-65-0x0000000000000000-mapping.dmp
          • memory/2004-77-0x0000000000000000-mapping.dmp