Analysis

  • max time kernel
    91s
  • max time network
    154s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:35

General

  • Target

    01b03c81e65a444e815e17b729c3d35047bcbb0b216c803683b0377928f3943a.exe

  • Size

    603KB

  • MD5

    a3bd5ed5c71edc95cbb14d7adbba7255

  • SHA1

    afb952248e0df63b305b55c2242263ba6ef7807d

  • SHA256

    01b03c81e65a444e815e17b729c3d35047bcbb0b216c803683b0377928f3943a

  • SHA512

    961a955df48eca6f00f53915224ac9e2f2bb297e52f155927d75d14d87b00d947afc2a21cada6ac081a13d0dac2b6ecb54a286d6732244cbc97cfa5324100ace

  • SSDEEP

    12288:TIny5DYTghQ/yvuifnL46R4LPqrvydno66cBZcxWFdC:7UTghQ/AXc2vEno660cxC

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\01b03c81e65a444e815e17b729c3d35047bcbb0b216c803683b0377928f3943a.exe
    "C:\Users\Admin\AppData\Local\Temp\01b03c81e65a444e815e17b729c3d35047bcbb0b216c803683b0377928f3943a.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:4984
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4720
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4540
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1756
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2544
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1516
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:208
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4212
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3564
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3736
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3992
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:5088
          • 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:3192
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1280

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgF062.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ad375adb1a1861e47cf6ced94e0f1e08

            SHA1

            d6d4f5f1b75fc9bbaf3af6467502ba63182e7575

            SHA256

            df71932a86f962e54f03b2dd9515dde0974b6e0ad06fa9e4ddf18b7331524f02

            SHA512

            f128d5f1ff6185ddb41f76e051635bbd3bde154472fc04ac230d0bf4d03b54f8e42e8fc77f51ed2dc5d69f597e9ec0be2614fff91ba9f9e43c16eb5c7d4f0d87

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ad375adb1a1861e47cf6ced94e0f1e08

            SHA1

            d6d4f5f1b75fc9bbaf3af6467502ba63182e7575

            SHA256

            df71932a86f962e54f03b2dd9515dde0974b6e0ad06fa9e4ddf18b7331524f02

            SHA512

            f128d5f1ff6185ddb41f76e051635bbd3bde154472fc04ac230d0bf4d03b54f8e42e8fc77f51ed2dc5d69f597e9ec0be2614fff91ba9f9e43c16eb5c7d4f0d87

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ad375adb1a1861e47cf6ced94e0f1e08

            SHA1

            d6d4f5f1b75fc9bbaf3af6467502ba63182e7575

            SHA256

            df71932a86f962e54f03b2dd9515dde0974b6e0ad06fa9e4ddf18b7331524f02

            SHA512

            f128d5f1ff6185ddb41f76e051635bbd3bde154472fc04ac230d0bf4d03b54f8e42e8fc77f51ed2dc5d69f597e9ec0be2614fff91ba9f9e43c16eb5c7d4f0d87

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ad375adb1a1861e47cf6ced94e0f1e08

            SHA1

            d6d4f5f1b75fc9bbaf3af6467502ba63182e7575

            SHA256

            df71932a86f962e54f03b2dd9515dde0974b6e0ad06fa9e4ddf18b7331524f02

            SHA512

            f128d5f1ff6185ddb41f76e051635bbd3bde154472fc04ac230d0bf4d03b54f8e42e8fc77f51ed2dc5d69f597e9ec0be2614fff91ba9f9e43c16eb5c7d4f0d87

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            610d1582e2a5ee58ad2ab42272b47766

            SHA1

            e6b37ac302ddd42dfd15b4504ff4529444ec4af0

            SHA256

            91c64ccc2693043090c573c39453d6fd78cd8c1c9205d47eb8eac25b4d8c764b

            SHA512

            41813199ddbca2d253dcea2518c5decec842d95e7940310c96ecf8c143feef32e53ea770c542beb7f5de943c85eed4d8243e434d4e7556f368c66ff1ce5cc4d7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            610d1582e2a5ee58ad2ab42272b47766

            SHA1

            e6b37ac302ddd42dfd15b4504ff4529444ec4af0

            SHA256

            91c64ccc2693043090c573c39453d6fd78cd8c1c9205d47eb8eac25b4d8c764b

            SHA512

            41813199ddbca2d253dcea2518c5decec842d95e7940310c96ecf8c143feef32e53ea770c542beb7f5de943c85eed4d8243e434d4e7556f368c66ff1ce5cc4d7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            610d1582e2a5ee58ad2ab42272b47766

            SHA1

            e6b37ac302ddd42dfd15b4504ff4529444ec4af0

            SHA256

            91c64ccc2693043090c573c39453d6fd78cd8c1c9205d47eb8eac25b4d8c764b

            SHA512

            41813199ddbca2d253dcea2518c5decec842d95e7940310c96ecf8c143feef32e53ea770c542beb7f5de943c85eed4d8243e434d4e7556f368c66ff1ce5cc4d7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            acc0b18cce39c03ec314e717df384fb2

            SHA1

            5bb4edf2d9dc47b86fffcffb4a3180cca3f0be4d

            SHA256

            70eee29a9ffd64cb095667b6b065346eb01f3f7bfcfba59fdd08d444ef40ce46

            SHA512

            aa2b86da37bae321556e79f3006657f159de88eb5092025d6409d0160793d0940eed2cf7733761944d1806b5eff41022df97bbffb3fb3ecf46fcdd1a08cace00

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            acc0b18cce39c03ec314e717df384fb2

            SHA1

            5bb4edf2d9dc47b86fffcffb4a3180cca3f0be4d

            SHA256

            70eee29a9ffd64cb095667b6b065346eb01f3f7bfcfba59fdd08d444ef40ce46

            SHA512

            aa2b86da37bae321556e79f3006657f159de88eb5092025d6409d0160793d0940eed2cf7733761944d1806b5eff41022df97bbffb3fb3ecf46fcdd1a08cace00

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            735c34039c3bcf76f03ac1bdc704ad3f

            SHA1

            d819f14e2847e70296c1693b32a679a46bffbbec

            SHA256

            0d4143794f7a19778afc31f28e0e4869fe107ba29a13554fe80386c3af0cf202

            SHA512

            3f7d9241bfad2eb19a7e0c7b5bd57d5093581bdd1c1bfa00a7a89969faa65e40c89a5fdccbb75a5765f6529dca1b5a7bd753ea3dc124d50ca9a9dc296cd08ab0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            735c34039c3bcf76f03ac1bdc704ad3f

            SHA1

            d819f14e2847e70296c1693b32a679a46bffbbec

            SHA256

            0d4143794f7a19778afc31f28e0e4869fe107ba29a13554fe80386c3af0cf202

            SHA512

            3f7d9241bfad2eb19a7e0c7b5bd57d5093581bdd1c1bfa00a7a89969faa65e40c89a5fdccbb75a5765f6529dca1b5a7bd753ea3dc124d50ca9a9dc296cd08ab0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            735c34039c3bcf76f03ac1bdc704ad3f

            SHA1

            d819f14e2847e70296c1693b32a679a46bffbbec

            SHA256

            0d4143794f7a19778afc31f28e0e4869fe107ba29a13554fe80386c3af0cf202

            SHA512

            3f7d9241bfad2eb19a7e0c7b5bd57d5093581bdd1c1bfa00a7a89969faa65e40c89a5fdccbb75a5765f6529dca1b5a7bd753ea3dc124d50ca9a9dc296cd08ab0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80045504216109aedeefe19c7825df30

            SHA1

            2053988840d1c287c94186f000453695f3544889

            SHA256

            0d05d5bfbf7dc7d86188181f53584904a2e982cfc7f577c73ec9ffe0e5134439

            SHA512

            9c83b25c67de6f6f8f570ae218cef2f12376b91cc09f5ceda20b7698fa87c91fc31637248e9d06760a8d759b6100d99f3c2695ab674bdcb7fe79a67b473900ff

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80045504216109aedeefe19c7825df30

            SHA1

            2053988840d1c287c94186f000453695f3544889

            SHA256

            0d05d5bfbf7dc7d86188181f53584904a2e982cfc7f577c73ec9ffe0e5134439

            SHA512

            9c83b25c67de6f6f8f570ae218cef2f12376b91cc09f5ceda20b7698fa87c91fc31637248e9d06760a8d759b6100d99f3c2695ab674bdcb7fe79a67b473900ff

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            80045504216109aedeefe19c7825df30

            SHA1

            2053988840d1c287c94186f000453695f3544889

            SHA256

            0d05d5bfbf7dc7d86188181f53584904a2e982cfc7f577c73ec9ffe0e5134439

            SHA512

            9c83b25c67de6f6f8f570ae218cef2f12376b91cc09f5ceda20b7698fa87c91fc31637248e9d06760a8d759b6100d99f3c2695ab674bdcb7fe79a67b473900ff

          • memory/208-147-0x0000000000000000-mapping.dmp

          • memory/1516-142-0x0000000000000000-mapping.dmp

          • memory/1756-140-0x0000000000000000-mapping.dmp

          • memory/2544-141-0x0000000000000000-mapping.dmp

          • memory/3564-158-0x0000000000000000-mapping.dmp

          • memory/3736-159-0x0000000000000000-mapping.dmp

          • memory/3992-165-0x0000000000000000-mapping.dmp

          • memory/4212-153-0x0000000000000000-mapping.dmp

          • memory/4540-137-0x0000000000000000-mapping.dmp

          • memory/4720-136-0x0000000000000000-mapping.dmp

          • memory/4984-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4984-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5088-166-0x0000000000000000-mapping.dmp