Analysis

  • max time kernel
    95s
  • max time network
    131s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:33

General

  • Target

    0f1bb8fb0d40370e01a844041efa80c42702123df7b52fe45197a7129698b29d.exe

  • Size

    601KB

  • MD5

    4da751061d4b0c86a6b990af56795a4f

  • SHA1

    1b3975a8a3653671c46c99ea52b55d1e10607de6

  • SHA256

    0f1bb8fb0d40370e01a844041efa80c42702123df7b52fe45197a7129698b29d

  • SHA512

    19318dce5a9e27634cc8b10e483cabfc6dc55c90a148a55777a47200e548f916861fb0d904730561f0ddd0d0070e638db0a68d2183ea1caab154df1da229fb66

  • SSDEEP

    12288:uIny5DYThIKNYoVSN46r4+wjiNV1HpV5MOkSyfqKc/Dm0Lr88:wUThdNVVSNugSeyfqnT8

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\0f1bb8fb0d40370e01a844041efa80c42702123df7b52fe45197a7129698b29d.exe
    "C:\Users\Admin\AppData\Local\Temp\0f1bb8fb0d40370e01a844041efa80c42702123df7b52fe45197a7129698b29d.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:4836
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:372
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2788
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3248
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4012
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4236
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3716
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1016
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4320
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4948
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1456
          • 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:4240
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3380

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2f461cdf7c7eb92b3e73313d93114cd9

            SHA1

            1a0d71c0f2e0c51d164dd55d736cc8309e3d00c4

            SHA256

            57e7cae54268bfad7e9b45b33d73d4ab4f4df3add832bc8916c193f0d3b33d34

            SHA512

            cf87891aabcbd44bbf901abdd666f589328352c60c467f25cfaec5ac1c147b312c31daa4303d61123fe648d0bf6b26c17fef1edbcdacd8b8619f6b25b2073f5a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2f461cdf7c7eb92b3e73313d93114cd9

            SHA1

            1a0d71c0f2e0c51d164dd55d736cc8309e3d00c4

            SHA256

            57e7cae54268bfad7e9b45b33d73d4ab4f4df3add832bc8916c193f0d3b33d34

            SHA512

            cf87891aabcbd44bbf901abdd666f589328352c60c467f25cfaec5ac1c147b312c31daa4303d61123fe648d0bf6b26c17fef1edbcdacd8b8619f6b25b2073f5a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2f461cdf7c7eb92b3e73313d93114cd9

            SHA1

            1a0d71c0f2e0c51d164dd55d736cc8309e3d00c4

            SHA256

            57e7cae54268bfad7e9b45b33d73d4ab4f4df3add832bc8916c193f0d3b33d34

            SHA512

            cf87891aabcbd44bbf901abdd666f589328352c60c467f25cfaec5ac1c147b312c31daa4303d61123fe648d0bf6b26c17fef1edbcdacd8b8619f6b25b2073f5a

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2f461cdf7c7eb92b3e73313d93114cd9

            SHA1

            1a0d71c0f2e0c51d164dd55d736cc8309e3d00c4

            SHA256

            57e7cae54268bfad7e9b45b33d73d4ab4f4df3add832bc8916c193f0d3b33d34

            SHA512

            cf87891aabcbd44bbf901abdd666f589328352c60c467f25cfaec5ac1c147b312c31daa4303d61123fe648d0bf6b26c17fef1edbcdacd8b8619f6b25b2073f5a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2062d94da515f68e0b5813b1440381b4

            SHA1

            57f25a43b4b6fd837485f1f4314c6ebc6d7cbbcc

            SHA256

            af558ba0832f52332c0bd59b130d32be065afde44667d420b788ac1893f7f21f

            SHA512

            cdf02ad56c84854fdcd2ec7bf1bee79a09a4edc8532c69504e2ddbfd1dffcb8b8e8662db3860b76fb0fe0204fe5cfaeb8fe4969be5d19bcfae808cede4154833

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2062d94da515f68e0b5813b1440381b4

            SHA1

            57f25a43b4b6fd837485f1f4314c6ebc6d7cbbcc

            SHA256

            af558ba0832f52332c0bd59b130d32be065afde44667d420b788ac1893f7f21f

            SHA512

            cdf02ad56c84854fdcd2ec7bf1bee79a09a4edc8532c69504e2ddbfd1dffcb8b8e8662db3860b76fb0fe0204fe5cfaeb8fe4969be5d19bcfae808cede4154833

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            2062d94da515f68e0b5813b1440381b4

            SHA1

            57f25a43b4b6fd837485f1f4314c6ebc6d7cbbcc

            SHA256

            af558ba0832f52332c0bd59b130d32be065afde44667d420b788ac1893f7f21f

            SHA512

            cdf02ad56c84854fdcd2ec7bf1bee79a09a4edc8532c69504e2ddbfd1dffcb8b8e8662db3860b76fb0fe0204fe5cfaeb8fe4969be5d19bcfae808cede4154833

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0bd865ab416c8f445ab498e146c753f1

            SHA1

            a189368e0a2df391c7a353907d097a9c5ae67e14

            SHA256

            91f26decca6e620c91a4e824170071516eed6623f7933115d45af540c4a2ab29

            SHA512

            5a45e28bd22d261062b6e062c77def0017ab743de8c27e20aa0661f14dc7189bbc9e78d0adeb0b4820428a922970def1ac2aceac67e4dd38f13d347974bf9401

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            0bd865ab416c8f445ab498e146c753f1

            SHA1

            a189368e0a2df391c7a353907d097a9c5ae67e14

            SHA256

            91f26decca6e620c91a4e824170071516eed6623f7933115d45af540c4a2ab29

            SHA512

            5a45e28bd22d261062b6e062c77def0017ab743de8c27e20aa0661f14dc7189bbc9e78d0adeb0b4820428a922970def1ac2aceac67e4dd38f13d347974bf9401

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f2f9c78aac1d69945629703649d36ae7

            SHA1

            9673fddaaa0e9e98152d076e55285f7687697bbd

            SHA256

            19cadf68909a9ddfa2f7a423756411e776570df22759f02a6a04719f3f07fdb3

            SHA512

            845b6287c627a08f174c6e0ef52c60e802e846162066b7a7acc8c160f63cab6f8327d7fa028aac8b35283f420e3affb833bde6b940a7932c962541baf6977fed

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f2f9c78aac1d69945629703649d36ae7

            SHA1

            9673fddaaa0e9e98152d076e55285f7687697bbd

            SHA256

            19cadf68909a9ddfa2f7a423756411e776570df22759f02a6a04719f3f07fdb3

            SHA512

            845b6287c627a08f174c6e0ef52c60e802e846162066b7a7acc8c160f63cab6f8327d7fa028aac8b35283f420e3affb833bde6b940a7932c962541baf6977fed

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f2f9c78aac1d69945629703649d36ae7

            SHA1

            9673fddaaa0e9e98152d076e55285f7687697bbd

            SHA256

            19cadf68909a9ddfa2f7a423756411e776570df22759f02a6a04719f3f07fdb3

            SHA512

            845b6287c627a08f174c6e0ef52c60e802e846162066b7a7acc8c160f63cab6f8327d7fa028aac8b35283f420e3affb833bde6b940a7932c962541baf6977fed

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            4e56c62c293cd0bc6bb4d131efdcdb5b

            SHA1

            8b4abf5afd399212b54cb6fc0576dff6caf9c92c

            SHA256

            a8cfbd028827ce76eafeb15d101e912b04936fd18787f04d21d4b6d75cf9ed52

            SHA512

            8b3cdb3a1cc2cdcf34e2af5e3cd01c5d5c0f772df76d1621d804d6e15b043a9f70558148f8747b92b2fc7203cfb0f02e803e5d978625a742709dffdd246673ba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            4e56c62c293cd0bc6bb4d131efdcdb5b

            SHA1

            8b4abf5afd399212b54cb6fc0576dff6caf9c92c

            SHA256

            a8cfbd028827ce76eafeb15d101e912b04936fd18787f04d21d4b6d75cf9ed52

            SHA512

            8b3cdb3a1cc2cdcf34e2af5e3cd01c5d5c0f772df76d1621d804d6e15b043a9f70558148f8747b92b2fc7203cfb0f02e803e5d978625a742709dffdd246673ba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            4e56c62c293cd0bc6bb4d131efdcdb5b

            SHA1

            8b4abf5afd399212b54cb6fc0576dff6caf9c92c

            SHA256

            a8cfbd028827ce76eafeb15d101e912b04936fd18787f04d21d4b6d75cf9ed52

            SHA512

            8b3cdb3a1cc2cdcf34e2af5e3cd01c5d5c0f772df76d1621d804d6e15b043a9f70558148f8747b92b2fc7203cfb0f02e803e5d978625a742709dffdd246673ba

          • memory/372-139-0x0000000000000000-mapping.dmp

          • memory/1016-161-0x0000000000000000-mapping.dmp

          • memory/1456-169-0x0000000000000000-mapping.dmp

          • memory/2788-140-0x0000000000000000-mapping.dmp

          • memory/2840-150-0x0000000000000000-mapping.dmp

          • memory/3248-143-0x0000000000000000-mapping.dmp

          • memory/3716-156-0x0000000000000000-mapping.dmp

          • memory/4012-144-0x0000000000000000-mapping.dmp

          • memory/4236-145-0x0000000000000000-mapping.dmp

          • memory/4320-162-0x0000000000000000-mapping.dmp

          • memory/4836-135-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4836-171-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4948-168-0x0000000000000000-mapping.dmp