Analysis

  • max time kernel
    144s
  • max time network
    166s
  • 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 10:26

General

  • Target

    5513eaf26d3dcd8ac81d5e1f025fb46be3445eb38e6b01018dae4f5110962c83.exe

  • Size

    601KB

  • MD5

    ee32f3d36eb6b1520fddebfca70132f7

  • SHA1

    8006e4df9b5c025e69115d935457fa402ecf66a7

  • SHA256

    5513eaf26d3dcd8ac81d5e1f025fb46be3445eb38e6b01018dae4f5110962c83

  • SHA512

    dd2ea81ed774a4fa8bcde8e927e697fbf0959e48721ebfae406af55973217898b029741160c888e1d5d78313e6e124690ddbef48d0aa61ef9eea6b0dc6b8418a

  • SSDEEP

    12288:fIny5DYTDePpQG1IhMjhLz2V1zQKQdMd9Yy6c/sZpAiP:HUTDM+UJN2DBMc/kAi

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\5513eaf26d3dcd8ac81d5e1f025fb46be3445eb38e6b01018dae4f5110962c83.exe
    "C:\Users\Admin\AppData\Local\Temp\5513eaf26d3dcd8ac81d5e1f025fb46be3445eb38e6b01018dae4f5110962c83.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:4204
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2228
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3660
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3932
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1236
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4744
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4684
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4344
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:732
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1672
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4516
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:212
          • 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:1640
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4776

          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:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nspC6E1.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            a6a173b3ef17ad0515505e9d5038e54d

            SHA1

            63b5c35dc3bb76d4dd34d87102dc74d2278b360c

            SHA256

            78885b6b0f524fabf782687ce7b5a3adb609dbb9e0d6ff8546549637622c486f

            SHA512

            7c2dfefbcdb12145928a3173b5312f974439dec8ec2e61513d169ebe7ab4b93a9566ad73c218895065bbc5daba4e3ef42c10d6b9cce80fb737e028d5fd70c0dd

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

            106KB

            MD5

            a6a173b3ef17ad0515505e9d5038e54d

            SHA1

            63b5c35dc3bb76d4dd34d87102dc74d2278b360c

            SHA256

            78885b6b0f524fabf782687ce7b5a3adb609dbb9e0d6ff8546549637622c486f

            SHA512

            7c2dfefbcdb12145928a3173b5312f974439dec8ec2e61513d169ebe7ab4b93a9566ad73c218895065bbc5daba4e3ef42c10d6b9cce80fb737e028d5fd70c0dd

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

            106KB

            MD5

            a6a173b3ef17ad0515505e9d5038e54d

            SHA1

            63b5c35dc3bb76d4dd34d87102dc74d2278b360c

            SHA256

            78885b6b0f524fabf782687ce7b5a3adb609dbb9e0d6ff8546549637622c486f

            SHA512

            7c2dfefbcdb12145928a3173b5312f974439dec8ec2e61513d169ebe7ab4b93a9566ad73c218895065bbc5daba4e3ef42c10d6b9cce80fb737e028d5fd70c0dd

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

            106KB

            MD5

            a6a173b3ef17ad0515505e9d5038e54d

            SHA1

            63b5c35dc3bb76d4dd34d87102dc74d2278b360c

            SHA256

            78885b6b0f524fabf782687ce7b5a3adb609dbb9e0d6ff8546549637622c486f

            SHA512

            7c2dfefbcdb12145928a3173b5312f974439dec8ec2e61513d169ebe7ab4b93a9566ad73c218895065bbc5daba4e3ef42c10d6b9cce80fb737e028d5fd70c0dd

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

            241KB

            MD5

            4b8eb32d21fc5f94b7e164f5dafa567d

            SHA1

            712db03e8f85b3d884eb81461e838e41a7815d9f

            SHA256

            d4861c2a10cc53494f6802f8ba1b32be1efd9de4f9b7f3cdc441dbca283cfa81

            SHA512

            2dcd7176710604f49bd260ac196069ddcfc94ff4b35903b828fba2f7d5db38c2e7748076fd2fd1ab4d94532e42d973ab7a197273c07ff2d317fba88cbf932c77

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

            241KB

            MD5

            4b8eb32d21fc5f94b7e164f5dafa567d

            SHA1

            712db03e8f85b3d884eb81461e838e41a7815d9f

            SHA256

            d4861c2a10cc53494f6802f8ba1b32be1efd9de4f9b7f3cdc441dbca283cfa81

            SHA512

            2dcd7176710604f49bd260ac196069ddcfc94ff4b35903b828fba2f7d5db38c2e7748076fd2fd1ab4d94532e42d973ab7a197273c07ff2d317fba88cbf932c77

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

            241KB

            MD5

            4b8eb32d21fc5f94b7e164f5dafa567d

            SHA1

            712db03e8f85b3d884eb81461e838e41a7815d9f

            SHA256

            d4861c2a10cc53494f6802f8ba1b32be1efd9de4f9b7f3cdc441dbca283cfa81

            SHA512

            2dcd7176710604f49bd260ac196069ddcfc94ff4b35903b828fba2f7d5db38c2e7748076fd2fd1ab4d94532e42d973ab7a197273c07ff2d317fba88cbf932c77

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

            108KB

            MD5

            b74446f9881f44666e129335ec246325

            SHA1

            a6715aa3868b6d2544467e12d93f76c0895eb905

            SHA256

            b4b0ae057d12729b79ac9351363cdeb16c8fad1c6c77198824b08f8245c155ce

            SHA512

            4e6d398bffc6778d7924a1f884d2e8119db71a5187b5f91a2788467676dbb9f4ef445be436d5b30934286cf940071b9157c5f7246326fbb06d64780f02015600

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

            108KB

            MD5

            b74446f9881f44666e129335ec246325

            SHA1

            a6715aa3868b6d2544467e12d93f76c0895eb905

            SHA256

            b4b0ae057d12729b79ac9351363cdeb16c8fad1c6c77198824b08f8245c155ce

            SHA512

            4e6d398bffc6778d7924a1f884d2e8119db71a5187b5f91a2788467676dbb9f4ef445be436d5b30934286cf940071b9157c5f7246326fbb06d64780f02015600

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

            176KB

            MD5

            d033f4fcc54cf9ee5420d81c286b08e3

            SHA1

            a34f675f7b887c1f168cbc74ef95383108239b60

            SHA256

            c8a5d173ee6f5db01dbd9a6e5e8923eb0305984c29a91c3c804d75080572d967

            SHA512

            9cb4e1fd675a0082a5bfaafa132db398c0daba57d2e878f96c439e9cc391ee3eee63d5140f4890091abfdd7cdbd8af776e758b8de601f80e9da49cf301fd2ceb

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

            176KB

            MD5

            d033f4fcc54cf9ee5420d81c286b08e3

            SHA1

            a34f675f7b887c1f168cbc74ef95383108239b60

            SHA256

            c8a5d173ee6f5db01dbd9a6e5e8923eb0305984c29a91c3c804d75080572d967

            SHA512

            9cb4e1fd675a0082a5bfaafa132db398c0daba57d2e878f96c439e9cc391ee3eee63d5140f4890091abfdd7cdbd8af776e758b8de601f80e9da49cf301fd2ceb

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

            176KB

            MD5

            d033f4fcc54cf9ee5420d81c286b08e3

            SHA1

            a34f675f7b887c1f168cbc74ef95383108239b60

            SHA256

            c8a5d173ee6f5db01dbd9a6e5e8923eb0305984c29a91c3c804d75080572d967

            SHA512

            9cb4e1fd675a0082a5bfaafa132db398c0daba57d2e878f96c439e9cc391ee3eee63d5140f4890091abfdd7cdbd8af776e758b8de601f80e9da49cf301fd2ceb

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

            158KB

            MD5

            23427dcc308a7428032729d9fcacbcab

            SHA1

            1782e36f65b73e3338e89d85ce96acbe6be15884

            SHA256

            000ab25b6ffe7d3973a37574cb10516f3dd8fd206469f99f43bf8f8df4087acb

            SHA512

            58931acdbf76d275c3ceaaae5494e6a9f77582e1881d8d67816980361b9f486c644c7889cf4807276679b20714dcce487081321217af7a010166869d21d64ac8

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

            158KB

            MD5

            23427dcc308a7428032729d9fcacbcab

            SHA1

            1782e36f65b73e3338e89d85ce96acbe6be15884

            SHA256

            000ab25b6ffe7d3973a37574cb10516f3dd8fd206469f99f43bf8f8df4087acb

            SHA512

            58931acdbf76d275c3ceaaae5494e6a9f77582e1881d8d67816980361b9f486c644c7889cf4807276679b20714dcce487081321217af7a010166869d21d64ac8

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

            158KB

            MD5

            23427dcc308a7428032729d9fcacbcab

            SHA1

            1782e36f65b73e3338e89d85ce96acbe6be15884

            SHA256

            000ab25b6ffe7d3973a37574cb10516f3dd8fd206469f99f43bf8f8df4087acb

            SHA512

            58931acdbf76d275c3ceaaae5494e6a9f77582e1881d8d67816980361b9f486c644c7889cf4807276679b20714dcce487081321217af7a010166869d21d64ac8

          • memory/212-166-0x0000000000000000-mapping.dmp
          • memory/732-158-0x0000000000000000-mapping.dmp
          • memory/1236-141-0x0000000000000000-mapping.dmp
          • memory/1672-159-0x0000000000000000-mapping.dmp
          • memory/2228-136-0x0000000000000000-mapping.dmp
          • memory/3660-137-0x0000000000000000-mapping.dmp
          • memory/3932-140-0x0000000000000000-mapping.dmp
          • memory/4204-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4204-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4344-153-0x0000000000000000-mapping.dmp
          • memory/4516-165-0x0000000000000000-mapping.dmp
          • memory/4684-147-0x0000000000000000-mapping.dmp
          • memory/4744-142-0x0000000000000000-mapping.dmp