Analysis

  • max time kernel
    156s
  • max time network
    170s
  • 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

    53aaf52cdba2bbe2100897a46af1c24e3758525bcc0cd996fa3922949dd60b6a.exe

  • Size

    602KB

  • MD5

    5ad558e770404f6837e05877838a8f63

  • SHA1

    e348ac71bb6b7274dd7d177e38f918e2a7263146

  • SHA256

    53aaf52cdba2bbe2100897a46af1c24e3758525bcc0cd996fa3922949dd60b6a

  • SHA512

    eeb6d991cfb71111930603d65bd4848e702700df7eaf17813ed8bf7bc6780339b6ee09ff93c81cc8f244f4edcc6dceabc02b7c6888c98a251740317d991265a6

  • SSDEEP

    12288:VIny5DYTgALTqw7IimiMd7zOAs2kuQrv9Jf7Db4RViD/h:hUTg4TqH7zT/qv9l3uQ/h

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\53aaf52cdba2bbe2100897a46af1c24e3758525bcc0cd996fa3922949dd60b6a.exe
    "C:\Users\Admin\AppData\Local\Temp\53aaf52cdba2bbe2100897a46af1c24e3758525bcc0cd996fa3922949dd60b6a.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:3760
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2280
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2604
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2132
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4920
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4864
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4280
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1980
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3196
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2196
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:220
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4360
          • 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:4500
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4308

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsgCA4C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e306dd13e32d62448472f72fb7408a34

            SHA1

            e2ef0c8e7999dbb170a176d91acbd8dbac1a1288

            SHA256

            48f6e876fcec43d1fdb82cdde952bbaae064a246ef475c2a7dfa2eb17c9d894a

            SHA512

            7332cb4a4d53e6003384b6e619ec5c3b96197932ceb162123135b93270475ebafdc89f240cd5beb92fa0b676346dd7003b2bc9bddf5189ca73c9189a330df2c0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e306dd13e32d62448472f72fb7408a34

            SHA1

            e2ef0c8e7999dbb170a176d91acbd8dbac1a1288

            SHA256

            48f6e876fcec43d1fdb82cdde952bbaae064a246ef475c2a7dfa2eb17c9d894a

            SHA512

            7332cb4a4d53e6003384b6e619ec5c3b96197932ceb162123135b93270475ebafdc89f240cd5beb92fa0b676346dd7003b2bc9bddf5189ca73c9189a330df2c0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e306dd13e32d62448472f72fb7408a34

            SHA1

            e2ef0c8e7999dbb170a176d91acbd8dbac1a1288

            SHA256

            48f6e876fcec43d1fdb82cdde952bbaae064a246ef475c2a7dfa2eb17c9d894a

            SHA512

            7332cb4a4d53e6003384b6e619ec5c3b96197932ceb162123135b93270475ebafdc89f240cd5beb92fa0b676346dd7003b2bc9bddf5189ca73c9189a330df2c0

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e306dd13e32d62448472f72fb7408a34

            SHA1

            e2ef0c8e7999dbb170a176d91acbd8dbac1a1288

            SHA256

            48f6e876fcec43d1fdb82cdde952bbaae064a246ef475c2a7dfa2eb17c9d894a

            SHA512

            7332cb4a4d53e6003384b6e619ec5c3b96197932ceb162123135b93270475ebafdc89f240cd5beb92fa0b676346dd7003b2bc9bddf5189ca73c9189a330df2c0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            91a4a7f55fc37b15e14dc5ab7d043733

            SHA1

            d1aa373d2e97c51d9469328d42bfe67af173f819

            SHA256

            86c25ed4ada646e5ad5c3a52d2a4249a498d1ea47d18b7cfdc73e75176d06fa0

            SHA512

            38c50788b573017a6ef6ff855870fa0efa9aae3b3cfd2bc6f3a3e732ba1724cb8b5b942dc165598098f9b184a912cde6ba5b2134ee154eb53f313581c63df4fb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            91a4a7f55fc37b15e14dc5ab7d043733

            SHA1

            d1aa373d2e97c51d9469328d42bfe67af173f819

            SHA256

            86c25ed4ada646e5ad5c3a52d2a4249a498d1ea47d18b7cfdc73e75176d06fa0

            SHA512

            38c50788b573017a6ef6ff855870fa0efa9aae3b3cfd2bc6f3a3e732ba1724cb8b5b942dc165598098f9b184a912cde6ba5b2134ee154eb53f313581c63df4fb

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            91a4a7f55fc37b15e14dc5ab7d043733

            SHA1

            d1aa373d2e97c51d9469328d42bfe67af173f819

            SHA256

            86c25ed4ada646e5ad5c3a52d2a4249a498d1ea47d18b7cfdc73e75176d06fa0

            SHA512

            38c50788b573017a6ef6ff855870fa0efa9aae3b3cfd2bc6f3a3e732ba1724cb8b5b942dc165598098f9b184a912cde6ba5b2134ee154eb53f313581c63df4fb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f63b5c0edf8b2a2a1cd34705a8eb21be

            SHA1

            f7d0e216d59859b7fae6a3575ff751ed7cf7c3af

            SHA256

            21b228b18fe566493f43442f2baf130a92a9614b8bb1b9a481ea9cbf1f0e5c8d

            SHA512

            de6724ac7c09a52faaa4a80b04180bccb17f46f59f191cb031dab2c42fa852d44fc113d0f023a2d5a50fedfe6ba3f26803cffbbd46cad8d6ad5d648c021cc2a5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f63b5c0edf8b2a2a1cd34705a8eb21be

            SHA1

            f7d0e216d59859b7fae6a3575ff751ed7cf7c3af

            SHA256

            21b228b18fe566493f43442f2baf130a92a9614b8bb1b9a481ea9cbf1f0e5c8d

            SHA512

            de6724ac7c09a52faaa4a80b04180bccb17f46f59f191cb031dab2c42fa852d44fc113d0f023a2d5a50fedfe6ba3f26803cffbbd46cad8d6ad5d648c021cc2a5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cb0012d61c2451bea9ec101ef419a0fd

            SHA1

            c9384a44c0038c66044720310a3ec4d8804e183e

            SHA256

            d3d6102eae7dbb61f5fdebe0e2f11a80bd1f522f2e7d4660b565df5841308bb6

            SHA512

            4a34ae24534d5d0609838d89404c7c8f56332c871b92101ea44d40f82cafa33fc15641ec5710870bac1696d49f3e9568f55337b4531ebc6d725fdb50c1f05870

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cb0012d61c2451bea9ec101ef419a0fd

            SHA1

            c9384a44c0038c66044720310a3ec4d8804e183e

            SHA256

            d3d6102eae7dbb61f5fdebe0e2f11a80bd1f522f2e7d4660b565df5841308bb6

            SHA512

            4a34ae24534d5d0609838d89404c7c8f56332c871b92101ea44d40f82cafa33fc15641ec5710870bac1696d49f3e9568f55337b4531ebc6d725fdb50c1f05870

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cb0012d61c2451bea9ec101ef419a0fd

            SHA1

            c9384a44c0038c66044720310a3ec4d8804e183e

            SHA256

            d3d6102eae7dbb61f5fdebe0e2f11a80bd1f522f2e7d4660b565df5841308bb6

            SHA512

            4a34ae24534d5d0609838d89404c7c8f56332c871b92101ea44d40f82cafa33fc15641ec5710870bac1696d49f3e9568f55337b4531ebc6d725fdb50c1f05870

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            28d1fbb25871307561dd429e84282659

            SHA1

            3f6e85eeafbb4a2fd49060f6f38542a464c25157

            SHA256

            83bfb44ece6d180a9b804cf366b6286dfb3f6e29e0a4f20415673ac4cf822002

            SHA512

            96e0986e15c9a8570c25a2e717ba7a186ad5b7d38b5d063f8a1c8a70b0a14243980e193dc0b553e98bb0f8e821259e5a801fe0df3552a9ce71b0bb7c04c298ae

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            28d1fbb25871307561dd429e84282659

            SHA1

            3f6e85eeafbb4a2fd49060f6f38542a464c25157

            SHA256

            83bfb44ece6d180a9b804cf366b6286dfb3f6e29e0a4f20415673ac4cf822002

            SHA512

            96e0986e15c9a8570c25a2e717ba7a186ad5b7d38b5d063f8a1c8a70b0a14243980e193dc0b553e98bb0f8e821259e5a801fe0df3552a9ce71b0bb7c04c298ae

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            28d1fbb25871307561dd429e84282659

            SHA1

            3f6e85eeafbb4a2fd49060f6f38542a464c25157

            SHA256

            83bfb44ece6d180a9b804cf366b6286dfb3f6e29e0a4f20415673ac4cf822002

            SHA512

            96e0986e15c9a8570c25a2e717ba7a186ad5b7d38b5d063f8a1c8a70b0a14243980e193dc0b553e98bb0f8e821259e5a801fe0df3552a9ce71b0bb7c04c298ae

          • memory/220-165-0x0000000000000000-mapping.dmp

          • memory/1980-153-0x0000000000000000-mapping.dmp

          • memory/2132-140-0x0000000000000000-mapping.dmp

          • memory/2196-159-0x0000000000000000-mapping.dmp

          • memory/2280-136-0x0000000000000000-mapping.dmp

          • memory/2604-137-0x0000000000000000-mapping.dmp

          • memory/3196-158-0x0000000000000000-mapping.dmp

          • memory/3760-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3760-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4280-147-0x0000000000000000-mapping.dmp

          • memory/4360-166-0x0000000000000000-mapping.dmp

          • memory/4864-142-0x0000000000000000-mapping.dmp

          • memory/4920-141-0x0000000000000000-mapping.dmp