Analysis

  • max time kernel
    161s
  • max time network
    173s
  • 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 10:22

General

  • Target

    740a94dc25e3ce04409183baa77e153347c0fc77f2051630101b8cd6cd4e5662.exe

  • Size

    603KB

  • MD5

    334d8f697f02a80889c0962c59cc97f7

  • SHA1

    e69a208ac9edcdaffb3b2240217001c0cfab5304

  • SHA256

    740a94dc25e3ce04409183baa77e153347c0fc77f2051630101b8cd6cd4e5662

  • SHA512

    bb69941a5c463d9ea249ae98ea8b0be82f0671b0b1aefa13c5bf795a33338a54b7ee9e1d73ee4dc47c01a6172da18808a8141e06935d430f8855da0f7cb99096

  • SSDEEP

    12288:rIny5DYTurO3krbfu2L4ldhjDQlNAYYgHCZinys73DL7L:TUTzKzu2LujDTYYgRnyuP

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\740a94dc25e3ce04409183baa77e153347c0fc77f2051630101b8cd6cd4e5662.exe
    "C:\Users\Admin\AppData\Local\Temp\740a94dc25e3ce04409183baa77e153347c0fc77f2051630101b8cd6cd4e5662.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:4972
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1940
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:392
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4564
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4712
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4800
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3696
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1796
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4252
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:320
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3292
          • 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:1812
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1732

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nseD306.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce4538698260ef58760f6b83d4f3427d

            SHA1

            051317956b9093e47eb581be9fcbccc39ca0bdae

            SHA256

            90718134de77655e926d3d30bd814e72eb994dd46d01900ee757301a497c1b54

            SHA512

            d688904fe69afbd7e4dabdefb3adc44c98ed0ec1d27b790517f0d49e49a900a874e0a429a2894eeb39ba278ee4d3e9d523c6b726e82108b4731285ccf5eb99ec

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce4538698260ef58760f6b83d4f3427d

            SHA1

            051317956b9093e47eb581be9fcbccc39ca0bdae

            SHA256

            90718134de77655e926d3d30bd814e72eb994dd46d01900ee757301a497c1b54

            SHA512

            d688904fe69afbd7e4dabdefb3adc44c98ed0ec1d27b790517f0d49e49a900a874e0a429a2894eeb39ba278ee4d3e9d523c6b726e82108b4731285ccf5eb99ec

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce4538698260ef58760f6b83d4f3427d

            SHA1

            051317956b9093e47eb581be9fcbccc39ca0bdae

            SHA256

            90718134de77655e926d3d30bd814e72eb994dd46d01900ee757301a497c1b54

            SHA512

            d688904fe69afbd7e4dabdefb3adc44c98ed0ec1d27b790517f0d49e49a900a874e0a429a2894eeb39ba278ee4d3e9d523c6b726e82108b4731285ccf5eb99ec

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ce4538698260ef58760f6b83d4f3427d

            SHA1

            051317956b9093e47eb581be9fcbccc39ca0bdae

            SHA256

            90718134de77655e926d3d30bd814e72eb994dd46d01900ee757301a497c1b54

            SHA512

            d688904fe69afbd7e4dabdefb3adc44c98ed0ec1d27b790517f0d49e49a900a874e0a429a2894eeb39ba278ee4d3e9d523c6b726e82108b4731285ccf5eb99ec

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            ca63dc0541d1eac38150379e10ad4e8b

            SHA1

            b933d6234144e0c19dca1df51f1bb39ed44b2a6c

            SHA256

            a9f459e059f2583e75cb6841ab0665b2e96d1ab51262bc81e5e0742985163257

            SHA512

            ec74c48c918d01357b187cec3084eb35ac0ed6cb277129ba13bddd0ea64b8312a148da7e6abec3c6b84828887e861ce79b54b49440bf75c65ca5f3d5edc079a9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            ca63dc0541d1eac38150379e10ad4e8b

            SHA1

            b933d6234144e0c19dca1df51f1bb39ed44b2a6c

            SHA256

            a9f459e059f2583e75cb6841ab0665b2e96d1ab51262bc81e5e0742985163257

            SHA512

            ec74c48c918d01357b187cec3084eb35ac0ed6cb277129ba13bddd0ea64b8312a148da7e6abec3c6b84828887e861ce79b54b49440bf75c65ca5f3d5edc079a9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            ca63dc0541d1eac38150379e10ad4e8b

            SHA1

            b933d6234144e0c19dca1df51f1bb39ed44b2a6c

            SHA256

            a9f459e059f2583e75cb6841ab0665b2e96d1ab51262bc81e5e0742985163257

            SHA512

            ec74c48c918d01357b187cec3084eb35ac0ed6cb277129ba13bddd0ea64b8312a148da7e6abec3c6b84828887e861ce79b54b49440bf75c65ca5f3d5edc079a9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0949c129edfc20b039d5ac9664c7aab9

            SHA1

            53a14b038737c30e6acada4c18c68e0402a03430

            SHA256

            03b38737ad9eaaab23e39c30644bbd237885184026c6a6ef51eb28f9cf5a4e18

            SHA512

            36ecbb37e823389e41837c50c44f9e74763c58ce8a28826f2f1987d6756cac259527503a774c23fe6e5e7c2ff4e35a1f2e171a9aabd7e8e316b11d7873790e27

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0949c129edfc20b039d5ac9664c7aab9

            SHA1

            53a14b038737c30e6acada4c18c68e0402a03430

            SHA256

            03b38737ad9eaaab23e39c30644bbd237885184026c6a6ef51eb28f9cf5a4e18

            SHA512

            36ecbb37e823389e41837c50c44f9e74763c58ce8a28826f2f1987d6756cac259527503a774c23fe6e5e7c2ff4e35a1f2e171a9aabd7e8e316b11d7873790e27

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2f8a25c8e3802a3d95b240c3c4cf3802

            SHA1

            ac7cc661873ebf5c3ebf245f8256635959ffb10d

            SHA256

            2b7a4a9f09f41df26dc19fdcc4e1051b892bb310c5816fabe76df10091119c3c

            SHA512

            3824a10c04367e0072731f6a1638c7d227a34f89922aa117c9a3472a93c0b0e2457916af2f020ad42f91df380ef9a7509262b75f27323a51159b598c5d943eb1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2f8a25c8e3802a3d95b240c3c4cf3802

            SHA1

            ac7cc661873ebf5c3ebf245f8256635959ffb10d

            SHA256

            2b7a4a9f09f41df26dc19fdcc4e1051b892bb310c5816fabe76df10091119c3c

            SHA512

            3824a10c04367e0072731f6a1638c7d227a34f89922aa117c9a3472a93c0b0e2457916af2f020ad42f91df380ef9a7509262b75f27323a51159b598c5d943eb1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2f8a25c8e3802a3d95b240c3c4cf3802

            SHA1

            ac7cc661873ebf5c3ebf245f8256635959ffb10d

            SHA256

            2b7a4a9f09f41df26dc19fdcc4e1051b892bb310c5816fabe76df10091119c3c

            SHA512

            3824a10c04367e0072731f6a1638c7d227a34f89922aa117c9a3472a93c0b0e2457916af2f020ad42f91df380ef9a7509262b75f27323a51159b598c5d943eb1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            018bf314246e7738030eb7a134e08975

            SHA1

            550941f0733be0f9ab9131a5862da655bc320f77

            SHA256

            94cc05bd44be98caaac91a5110dbc21ead7249fcfe0b9280a3997a1da5039a1c

            SHA512

            03f4c1f8df4a6988329b45a0780fe7b6c57db08ed79e5577acd5bd9ae0042e20396456fd73290f668f84ffda11b40280ac7d1631dcef5497f4e3a687a2dea682

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            018bf314246e7738030eb7a134e08975

            SHA1

            550941f0733be0f9ab9131a5862da655bc320f77

            SHA256

            94cc05bd44be98caaac91a5110dbc21ead7249fcfe0b9280a3997a1da5039a1c

            SHA512

            03f4c1f8df4a6988329b45a0780fe7b6c57db08ed79e5577acd5bd9ae0042e20396456fd73290f668f84ffda11b40280ac7d1631dcef5497f4e3a687a2dea682

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            018bf314246e7738030eb7a134e08975

            SHA1

            550941f0733be0f9ab9131a5862da655bc320f77

            SHA256

            94cc05bd44be98caaac91a5110dbc21ead7249fcfe0b9280a3997a1da5039a1c

            SHA512

            03f4c1f8df4a6988329b45a0780fe7b6c57db08ed79e5577acd5bd9ae0042e20396456fd73290f668f84ffda11b40280ac7d1631dcef5497f4e3a687a2dea682

          • memory/320-165-0x0000000000000000-mapping.dmp

          • memory/392-137-0x0000000000000000-mapping.dmp

          • memory/840-147-0x0000000000000000-mapping.dmp

          • memory/1796-158-0x0000000000000000-mapping.dmp

          • memory/1940-136-0x0000000000000000-mapping.dmp

          • memory/3292-166-0x0000000000000000-mapping.dmp

          • memory/3696-153-0x0000000000000000-mapping.dmp

          • memory/4252-159-0x0000000000000000-mapping.dmp

          • memory/4564-140-0x0000000000000000-mapping.dmp

          • memory/4712-141-0x0000000000000000-mapping.dmp

          • memory/4800-142-0x0000000000000000-mapping.dmp

          • memory/4972-135-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4972-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB