Analysis

  • max time kernel
    43s
  • 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 10:25

General

  • Target

    572272361710944319518dd8b10fc718fb6e1e7df2e2d4e19340783dfc34aa2f.exe

  • Size

    602KB

  • MD5

    562095561e21aeafdcc6d86975025078

  • SHA1

    ad4ab78b0e6dc7d1040ab4d7fdcd17a8af0b0df8

  • SHA256

    572272361710944319518dd8b10fc718fb6e1e7df2e2d4e19340783dfc34aa2f

  • SHA512

    cefae0174d2fea1a633c9b77e47e24e29a26ae5b95add9149e74448223369b66454f03022d759bd6e4386ffd1382b7ec61c98bdbbcf6cf96add842bc2f9020c7

  • SSDEEP

    12288:mIny5DYTAgf2tBMbVyOe2TlSXCNd0rlYejjRZjoYfHFk/w4vM:IUT9f2XMVyOrwyNdle3gYfK

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\572272361710944319518dd8b10fc718fb6e1e7df2e2d4e19340783dfc34aa2f.exe
    "C:\Users\Admin\AppData\Local\Temp\572272361710944319518dd8b10fc718fb6e1e7df2e2d4e19340783dfc34aa2f.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:1584
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1748
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:988
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1936
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1492
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2044
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1288
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1972
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1968
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:820
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1560
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1964
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1912

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4525f68ab379a067bf7546c85d6f261d

            SHA1

            b9a1cf3a705d95efb725a5f8eacfcbd82f4bb669

            SHA256

            b8ecd66a00feacfe589b7c5d79f1dfca136d9728fdd3871386292ec475b0888d

            SHA512

            324e5d46b3a9ad4365fe55a70046e806a50052dd525493d7ac6d386064fae948d8b347f4f51d517aaaf4a2d1d7308829cd3dba717f427f4f9925669416715da4

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            283297e23511e4b203023fddd3ea3b8f

            SHA1

            64e7797c2cf24be2c2eb63a0f1f533372e00d137

            SHA256

            d2951ba52acc1632ee8d6c13e3127a76bd2d7562d6b22c3abecc398dabfd3d94

            SHA512

            13f5701253314f820c1a6c0dd99b980d84e4001a3b10b28bb28de3f1bc898aa03013c3394d071e28a51bd204fc21347a834fc466f02c0eb4aac9bf9ee0a61790

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            931e073cc0f8584a9f2644de866e054f

            SHA1

            d5f00a6f7c52771dab06553c718c11a0892aaabd

            SHA256

            dc011fa0b6479b85bfe8c67c0aedfe9052e3802df11cfacc14b6ca32f4ad4b98

            SHA512

            9b8fc3257e90382453d2558299f951d56517fd0ab672cedf39e927044d4b7c88d64a39441a5fc7a933b8d1ddcb026b1fcddb7e7267077765a17ed6e6cdc5d7cc

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            412c322f34f5e7d7d9624fb1cd1fc93b

            SHA1

            e23a0fca23055ea0d6e8c9a5cff764bba72e3f36

            SHA256

            5ec3964711c358080f53afb72958226664aea70ad5cc41afbfbfff3a97827557

            SHA512

            c0772ba3d7bbcffa4f9e1def012c4025e677f4b46c6c522ceadb2e778e549ff74911284c21c83370b7b0683ec8eec2ce71ef8bb1fa99d25c4390d9c36998feb8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            412c322f34f5e7d7d9624fb1cd1fc93b

            SHA1

            e23a0fca23055ea0d6e8c9a5cff764bba72e3f36

            SHA256

            5ec3964711c358080f53afb72958226664aea70ad5cc41afbfbfff3a97827557

            SHA512

            c0772ba3d7bbcffa4f9e1def012c4025e677f4b46c6c522ceadb2e778e549ff74911284c21c83370b7b0683ec8eec2ce71ef8bb1fa99d25c4390d9c36998feb8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7658b4de26cabeaf3f6df4edec500fe0

            SHA1

            348dcb2be5291629e3a724cb9098de23a96d55cf

            SHA256

            c0722cc983f593a443337e805d3bf1b4d4b7919ec4154ade9e17d7603248ec2d

            SHA512

            ea313b31c112912ddb0861fb4014afca7fb24afacb7d46c5636954dc9b7e5b42e16a9c4fd8322dd2473cc8d4db0a18b1b8d40da3d826b40170e3911f63820b71

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7658b4de26cabeaf3f6df4edec500fe0

            SHA1

            348dcb2be5291629e3a724cb9098de23a96d55cf

            SHA256

            c0722cc983f593a443337e805d3bf1b4d4b7919ec4154ade9e17d7603248ec2d

            SHA512

            ea313b31c112912ddb0861fb4014afca7fb24afacb7d46c5636954dc9b7e5b42e16a9c4fd8322dd2473cc8d4db0a18b1b8d40da3d826b40170e3911f63820b71

          • \Users\Admin\AppData\Local\Temp\nso483A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso483A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso483A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso483A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso483A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4525f68ab379a067bf7546c85d6f261d

            SHA1

            b9a1cf3a705d95efb725a5f8eacfcbd82f4bb669

            SHA256

            b8ecd66a00feacfe589b7c5d79f1dfca136d9728fdd3871386292ec475b0888d

            SHA512

            324e5d46b3a9ad4365fe55a70046e806a50052dd525493d7ac6d386064fae948d8b347f4f51d517aaaf4a2d1d7308829cd3dba717f427f4f9925669416715da4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4525f68ab379a067bf7546c85d6f261d

            SHA1

            b9a1cf3a705d95efb725a5f8eacfcbd82f4bb669

            SHA256

            b8ecd66a00feacfe589b7c5d79f1dfca136d9728fdd3871386292ec475b0888d

            SHA512

            324e5d46b3a9ad4365fe55a70046e806a50052dd525493d7ac6d386064fae948d8b347f4f51d517aaaf4a2d1d7308829cd3dba717f427f4f9925669416715da4

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4525f68ab379a067bf7546c85d6f261d

            SHA1

            b9a1cf3a705d95efb725a5f8eacfcbd82f4bb669

            SHA256

            b8ecd66a00feacfe589b7c5d79f1dfca136d9728fdd3871386292ec475b0888d

            SHA512

            324e5d46b3a9ad4365fe55a70046e806a50052dd525493d7ac6d386064fae948d8b347f4f51d517aaaf4a2d1d7308829cd3dba717f427f4f9925669416715da4

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            283297e23511e4b203023fddd3ea3b8f

            SHA1

            64e7797c2cf24be2c2eb63a0f1f533372e00d137

            SHA256

            d2951ba52acc1632ee8d6c13e3127a76bd2d7562d6b22c3abecc398dabfd3d94

            SHA512

            13f5701253314f820c1a6c0dd99b980d84e4001a3b10b28bb28de3f1bc898aa03013c3394d071e28a51bd204fc21347a834fc466f02c0eb4aac9bf9ee0a61790

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            283297e23511e4b203023fddd3ea3b8f

            SHA1

            64e7797c2cf24be2c2eb63a0f1f533372e00d137

            SHA256

            d2951ba52acc1632ee8d6c13e3127a76bd2d7562d6b22c3abecc398dabfd3d94

            SHA512

            13f5701253314f820c1a6c0dd99b980d84e4001a3b10b28bb28de3f1bc898aa03013c3394d071e28a51bd204fc21347a834fc466f02c0eb4aac9bf9ee0a61790

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            931e073cc0f8584a9f2644de866e054f

            SHA1

            d5f00a6f7c52771dab06553c718c11a0892aaabd

            SHA256

            dc011fa0b6479b85bfe8c67c0aedfe9052e3802df11cfacc14b6ca32f4ad4b98

            SHA512

            9b8fc3257e90382453d2558299f951d56517fd0ab672cedf39e927044d4b7c88d64a39441a5fc7a933b8d1ddcb026b1fcddb7e7267077765a17ed6e6cdc5d7cc

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            412c322f34f5e7d7d9624fb1cd1fc93b

            SHA1

            e23a0fca23055ea0d6e8c9a5cff764bba72e3f36

            SHA256

            5ec3964711c358080f53afb72958226664aea70ad5cc41afbfbfff3a97827557

            SHA512

            c0772ba3d7bbcffa4f9e1def012c4025e677f4b46c6c522ceadb2e778e549ff74911284c21c83370b7b0683ec8eec2ce71ef8bb1fa99d25c4390d9c36998feb8

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            7658b4de26cabeaf3f6df4edec500fe0

            SHA1

            348dcb2be5291629e3a724cb9098de23a96d55cf

            SHA256

            c0722cc983f593a443337e805d3bf1b4d4b7919ec4154ade9e17d7603248ec2d

            SHA512

            ea313b31c112912ddb0861fb4014afca7fb24afacb7d46c5636954dc9b7e5b42e16a9c4fd8322dd2473cc8d4db0a18b1b8d40da3d826b40170e3911f63820b71

          • memory/820-86-0x0000000000000000-mapping.dmp

          • memory/988-58-0x0000000000000000-mapping.dmp

          • memory/1288-76-0x0000000000000000-mapping.dmp

          • memory/1492-61-0x0000000000000000-mapping.dmp

          • memory/1560-87-0x0000000000000000-mapping.dmp

          • memory/1584-62-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1584-54-0x0000000074BB1000-0x0000000074BB3000-memory.dmp

            Filesize

            8KB

          • memory/1584-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1640-70-0x0000000000000000-mapping.dmp

          • memory/1748-57-0x0000000000000000-mapping.dmp

          • memory/1936-60-0x0000000000000000-mapping.dmp

          • memory/1968-81-0x0000000000000000-mapping.dmp

          • memory/1972-80-0x0000000000000000-mapping.dmp

          • memory/2044-64-0x0000000000000000-mapping.dmp