Analysis

  • max time kernel
    79s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:26

General

  • Target

    54f6ab902c11b9a8be8a0cfc3d8ad6c1475af6805515e4792bb5e1ea848109d8.exe

  • Size

    601KB

  • MD5

    880bc7201ce86d62ef5d2dccad5dced3

  • SHA1

    6375804e7fa8ecfc9e74a84921ff0453d4b07eb8

  • SHA256

    54f6ab902c11b9a8be8a0cfc3d8ad6c1475af6805515e4792bb5e1ea848109d8

  • SHA512

    63ba1491c5b0503b6d449d262c97a6286d4e3b69ab229362ef57c8706af89aa5e5ca6bd044acf296651734f47ab09d2e9d1264eec073fabc521fd29cd7dddebd

  • SSDEEP

    12288:bIny5DYTDOlmuaA0aGBhXSp1YbSvHG7/pCP2oGSaLnv7:jUTD+JSi7YbSvmVCu5nv

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\54f6ab902c11b9a8be8a0cfc3d8ad6c1475af6805515e4792bb5e1ea848109d8.exe
    "C:\Users\Admin\AppData\Local\Temp\54f6ab902c11b9a8be8a0cfc3d8ad6c1475af6805515e4792bb5e1ea848109d8.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:1936
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:996
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1772
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2020
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1716
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1928
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1992
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:824
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1128
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1680
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1112
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1512
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1628

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            50e258cd49ea4def8189d3356b465730

            SHA1

            bdd14d24ad4229048bf640becbde0be9a4ba7350

            SHA256

            30771f280ae76710db1e655d1474895c65a88e9e4a8be75187af478fb2bbf920

            SHA512

            9941ccac5f41c68ace8b7123ecc973bb13cfa819dee7c7fab4ecf25cf6fe497e08341349ef534105e625a844a27ec24e29490c353e7f77cc3b7e446a92606d30

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2864bf6e32989daff74648730d25019a

            SHA1

            41feff13c898b89ea00e3bbac7301e688d0b025a

            SHA256

            930846a1267b490b50460f7184185d84dbc6ee80dd41f0221c67032995697fd5

            SHA512

            e213c2d9c457a5cc1f7572ea820ce5c0a232dbd34dd656d5c63c67ef74e58a653f57b32d65c988cb3d2a5fd5a13b3525f509787422f23d9b6fc6c50ef57826a0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            57cb5f89094b1787994448e4c856e2c3

            SHA1

            4ca4f72b76e58844f89f0f7375e65ee28d9db927

            SHA256

            a37147a9b1591dda4100796c4cf476d7517a2ca6a3ab986379f0c3abb72d2d14

            SHA512

            06c7eaac9f3c028a6066c44224ccdf7306f344f19b490fa783fe1090032be4575d86cbfe55fac1a88cec8dc5d7743771654b69cdd2f40c88836232b7d6e85f7e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1aaa21528f380d3842e8e2a8f827327e

            SHA1

            9dcc6de36dd718462c88d0f7e02f730a661926fb

            SHA256

            e244a13b86381a8724260f65f882d8e202035ab44cef4927dbd9f5a6fe318329

            SHA512

            ab5a3e4857d4dd00c3ad6b7caa953fd1a929d4a4a5c76c91c19a891574de32c90faf9f32dc35bc271e014871688a1cc626aec5c28a39e7b71ec46b10d0a76262

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1aaa21528f380d3842e8e2a8f827327e

            SHA1

            9dcc6de36dd718462c88d0f7e02f730a661926fb

            SHA256

            e244a13b86381a8724260f65f882d8e202035ab44cef4927dbd9f5a6fe318329

            SHA512

            ab5a3e4857d4dd00c3ad6b7caa953fd1a929d4a4a5c76c91c19a891574de32c90faf9f32dc35bc271e014871688a1cc626aec5c28a39e7b71ec46b10d0a76262

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            aea154bb5df344d6f6f8e5b60cfd4cce

            SHA1

            091338c6f00828741ae157c8c7a4cf1f61476a49

            SHA256

            da8e87c8fa7380bd4dd17da453c6f76f7a0c7dc0d9ea77d55b4f9c192d6e6221

            SHA512

            89ac5bde54392f7314bc9de287f8df3f6cfd79471ab3549e1b249ea391de5b7cc318adf659a933df2cd65701ccaf8c610575934dd4f79cbb42e8ba50cf0adbff

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            aea154bb5df344d6f6f8e5b60cfd4cce

            SHA1

            091338c6f00828741ae157c8c7a4cf1f61476a49

            SHA256

            da8e87c8fa7380bd4dd17da453c6f76f7a0c7dc0d9ea77d55b4f9c192d6e6221

            SHA512

            89ac5bde54392f7314bc9de287f8df3f6cfd79471ab3549e1b249ea391de5b7cc318adf659a933df2cd65701ccaf8c610575934dd4f79cbb42e8ba50cf0adbff

          • \Users\Admin\AppData\Local\Temp\nsyF8A4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyF8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyF8A4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            50e258cd49ea4def8189d3356b465730

            SHA1

            bdd14d24ad4229048bf640becbde0be9a4ba7350

            SHA256

            30771f280ae76710db1e655d1474895c65a88e9e4a8be75187af478fb2bbf920

            SHA512

            9941ccac5f41c68ace8b7123ecc973bb13cfa819dee7c7fab4ecf25cf6fe497e08341349ef534105e625a844a27ec24e29490c353e7f77cc3b7e446a92606d30

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            50e258cd49ea4def8189d3356b465730

            SHA1

            bdd14d24ad4229048bf640becbde0be9a4ba7350

            SHA256

            30771f280ae76710db1e655d1474895c65a88e9e4a8be75187af478fb2bbf920

            SHA512

            9941ccac5f41c68ace8b7123ecc973bb13cfa819dee7c7fab4ecf25cf6fe497e08341349ef534105e625a844a27ec24e29490c353e7f77cc3b7e446a92606d30

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            50e258cd49ea4def8189d3356b465730

            SHA1

            bdd14d24ad4229048bf640becbde0be9a4ba7350

            SHA256

            30771f280ae76710db1e655d1474895c65a88e9e4a8be75187af478fb2bbf920

            SHA512

            9941ccac5f41c68ace8b7123ecc973bb13cfa819dee7c7fab4ecf25cf6fe497e08341349ef534105e625a844a27ec24e29490c353e7f77cc3b7e446a92606d30

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2864bf6e32989daff74648730d25019a

            SHA1

            41feff13c898b89ea00e3bbac7301e688d0b025a

            SHA256

            930846a1267b490b50460f7184185d84dbc6ee80dd41f0221c67032995697fd5

            SHA512

            e213c2d9c457a5cc1f7572ea820ce5c0a232dbd34dd656d5c63c67ef74e58a653f57b32d65c988cb3d2a5fd5a13b3525f509787422f23d9b6fc6c50ef57826a0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2864bf6e32989daff74648730d25019a

            SHA1

            41feff13c898b89ea00e3bbac7301e688d0b025a

            SHA256

            930846a1267b490b50460f7184185d84dbc6ee80dd41f0221c67032995697fd5

            SHA512

            e213c2d9c457a5cc1f7572ea820ce5c0a232dbd34dd656d5c63c67ef74e58a653f57b32d65c988cb3d2a5fd5a13b3525f509787422f23d9b6fc6c50ef57826a0

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            57cb5f89094b1787994448e4c856e2c3

            SHA1

            4ca4f72b76e58844f89f0f7375e65ee28d9db927

            SHA256

            a37147a9b1591dda4100796c4cf476d7517a2ca6a3ab986379f0c3abb72d2d14

            SHA512

            06c7eaac9f3c028a6066c44224ccdf7306f344f19b490fa783fe1090032be4575d86cbfe55fac1a88cec8dc5d7743771654b69cdd2f40c88836232b7d6e85f7e

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1aaa21528f380d3842e8e2a8f827327e

            SHA1

            9dcc6de36dd718462c88d0f7e02f730a661926fb

            SHA256

            e244a13b86381a8724260f65f882d8e202035ab44cef4927dbd9f5a6fe318329

            SHA512

            ab5a3e4857d4dd00c3ad6b7caa953fd1a929d4a4a5c76c91c19a891574de32c90faf9f32dc35bc271e014871688a1cc626aec5c28a39e7b71ec46b10d0a76262

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            aea154bb5df344d6f6f8e5b60cfd4cce

            SHA1

            091338c6f00828741ae157c8c7a4cf1f61476a49

            SHA256

            da8e87c8fa7380bd4dd17da453c6f76f7a0c7dc0d9ea77d55b4f9c192d6e6221

            SHA512

            89ac5bde54392f7314bc9de287f8df3f6cfd79471ab3549e1b249ea391de5b7cc318adf659a933df2cd65701ccaf8c610575934dd4f79cbb42e8ba50cf0adbff

          • memory/824-81-0x0000000000000000-mapping.dmp

          • memory/996-57-0x0000000000000000-mapping.dmp

          • memory/1112-88-0x0000000000000000-mapping.dmp

          • memory/1128-82-0x0000000000000000-mapping.dmp

          • memory/1680-87-0x0000000000000000-mapping.dmp

          • memory/1716-61-0x0000000000000000-mapping.dmp

          • memory/1772-58-0x0000000000000000-mapping.dmp

          • memory/1928-71-0x0000000000000000-mapping.dmp

          • memory/1936-54-0x0000000076DC1000-0x0000000076DC3000-memory.dmp

            Filesize

            8KB

          • memory/1936-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1936-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1936-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1988-64-0x0000000000000000-mapping.dmp

          • memory/1992-77-0x0000000000000000-mapping.dmp

          • memory/2020-60-0x0000000000000000-mapping.dmp