Analysis

  • max time kernel
    46s
  • max time network
    33s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:18

General

  • Target

    970644eb1ac464b79f0416787091e0897505f5aba8cdd799a3f26db400380a52.exe

  • Size

    602KB

  • MD5

    1823bd629d914e05cd6bdcce27cbc222

  • SHA1

    fcb57faf74a72e4a5eae77d3320742cc8d302366

  • SHA256

    970644eb1ac464b79f0416787091e0897505f5aba8cdd799a3f26db400380a52

  • SHA512

    b057a80db25ce1dd377a2f58ed43878fa901d4f498253e371293bbc1274fcc8998d4101390f4c8a20c822913888b6c69d630943d5b9e94bec58b6cf260004f24

  • SSDEEP

    12288:0Iny5DYTge/xhPJZiZhjoGtV6VifnC5W:yUTge5hSEGtAAfnC5

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\970644eb1ac464b79f0416787091e0897505f5aba8cdd799a3f26db400380a52.exe
    "C:\Users\Admin\AppData\Local\Temp\970644eb1ac464b79f0416787091e0897505f5aba8cdd799a3f26db400380a52.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:1336
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1104
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:584
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:364
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1048
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:328
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:840
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1420
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:304
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:316
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:900
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1776
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1644
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1944

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ed7e5b2a8b7dce0c6ebaf2fb77d76333

            SHA1

            57ec9e7fe98433c3e0f51b5ed311e7ef780b6de6

            SHA256

            61a0fe47010a0c2f9d822d9824752281e95b000c415db85763d96836a9a41ce5

            SHA512

            d7882cfd03ff49641c6503edcb4517ef49f90c916cdbf136b30e86cc8d3743831e5b0d7daea8c1fbeb7c8554551ea2fa23a5ca34c09df6790efab388aa7e34d8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1da3c3ced389f28bf214281ccaf9c583

            SHA1

            a9ff5f3dbfe0fdff0b5f5879f0a51018dd4a7b6c

            SHA256

            d45ef9c84439d405a7683226690867442e17afba2475b54e8a3f9c864e43d5c8

            SHA512

            e717c4f49c6975194e46c66d29070e48a9a10274aadf3be83fb80cfdb4447f5afa6e99515869d61590ccc3bc94913a29c1849b3daf68451024d7d42fb4aa23ea

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            576914a27de330fd64fa8e17ded47830

            SHA1

            e57d98d7f5829f1c90ded4beb158f0417d6f4533

            SHA256

            bbc9e3d1afd25f3da26aaece4a6f2553ab4ad171d519d9c93142cb2db9e02b4d

            SHA512

            51b7914a04f714f9f91de52d9a8ddb1aed1205a0c58e21a38b4665260e69b05ae12c6cb3264d416781aec396db4eb16a41a36ba0f2de03d5f38cde3f13f9da53

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b7f3ec7d3f5c7734e40a574391d4d1a8

            SHA1

            9808944121e6cf76c9fe962aa56bc1bf008221dd

            SHA256

            a4cb5a514215217f1c8252fee9739e4883d14431f7f78e6ab3a76ecfbd6263d4

            SHA512

            daef5e087c86e96dc991f9eda3c7c1ced10c6ca169811bb411b0b35637a1b269785ae2d327e8a7ea707b9530cb9ca4c971ec6a2f3d3d019747d4aa539ba5e8d1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b7f3ec7d3f5c7734e40a574391d4d1a8

            SHA1

            9808944121e6cf76c9fe962aa56bc1bf008221dd

            SHA256

            a4cb5a514215217f1c8252fee9739e4883d14431f7f78e6ab3a76ecfbd6263d4

            SHA512

            daef5e087c86e96dc991f9eda3c7c1ced10c6ca169811bb411b0b35637a1b269785ae2d327e8a7ea707b9530cb9ca4c971ec6a2f3d3d019747d4aa539ba5e8d1

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a91185cf8d21793c4ffd35ff8181294b

            SHA1

            7ee1e17ebf7e34d957e01b158ba2882f208d659b

            SHA256

            203416e90b819c1d757d937876bd278056f0cf316508b57a9cf03293d4757e9a

            SHA512

            f9127ad099f166c34ba95f2fd6c74dd0d0eb4c040dcb16647327568b0668444639d44e7fd246e122b66b6ba5e6972d8adcd2204d7c2ec2b6d8a9dc14d1df06b2

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a91185cf8d21793c4ffd35ff8181294b

            SHA1

            7ee1e17ebf7e34d957e01b158ba2882f208d659b

            SHA256

            203416e90b819c1d757d937876bd278056f0cf316508b57a9cf03293d4757e9a

            SHA512

            f9127ad099f166c34ba95f2fd6c74dd0d0eb4c040dcb16647327568b0668444639d44e7fd246e122b66b6ba5e6972d8adcd2204d7c2ec2b6d8a9dc14d1df06b2

          • \Users\Admin\AppData\Local\Temp\nsyA90E.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyA90E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyA90E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyA90E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyA90E.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ed7e5b2a8b7dce0c6ebaf2fb77d76333

            SHA1

            57ec9e7fe98433c3e0f51b5ed311e7ef780b6de6

            SHA256

            61a0fe47010a0c2f9d822d9824752281e95b000c415db85763d96836a9a41ce5

            SHA512

            d7882cfd03ff49641c6503edcb4517ef49f90c916cdbf136b30e86cc8d3743831e5b0d7daea8c1fbeb7c8554551ea2fa23a5ca34c09df6790efab388aa7e34d8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ed7e5b2a8b7dce0c6ebaf2fb77d76333

            SHA1

            57ec9e7fe98433c3e0f51b5ed311e7ef780b6de6

            SHA256

            61a0fe47010a0c2f9d822d9824752281e95b000c415db85763d96836a9a41ce5

            SHA512

            d7882cfd03ff49641c6503edcb4517ef49f90c916cdbf136b30e86cc8d3743831e5b0d7daea8c1fbeb7c8554551ea2fa23a5ca34c09df6790efab388aa7e34d8

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ed7e5b2a8b7dce0c6ebaf2fb77d76333

            SHA1

            57ec9e7fe98433c3e0f51b5ed311e7ef780b6de6

            SHA256

            61a0fe47010a0c2f9d822d9824752281e95b000c415db85763d96836a9a41ce5

            SHA512

            d7882cfd03ff49641c6503edcb4517ef49f90c916cdbf136b30e86cc8d3743831e5b0d7daea8c1fbeb7c8554551ea2fa23a5ca34c09df6790efab388aa7e34d8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1da3c3ced389f28bf214281ccaf9c583

            SHA1

            a9ff5f3dbfe0fdff0b5f5879f0a51018dd4a7b6c

            SHA256

            d45ef9c84439d405a7683226690867442e17afba2475b54e8a3f9c864e43d5c8

            SHA512

            e717c4f49c6975194e46c66d29070e48a9a10274aadf3be83fb80cfdb4447f5afa6e99515869d61590ccc3bc94913a29c1849b3daf68451024d7d42fb4aa23ea

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            1da3c3ced389f28bf214281ccaf9c583

            SHA1

            a9ff5f3dbfe0fdff0b5f5879f0a51018dd4a7b6c

            SHA256

            d45ef9c84439d405a7683226690867442e17afba2475b54e8a3f9c864e43d5c8

            SHA512

            e717c4f49c6975194e46c66d29070e48a9a10274aadf3be83fb80cfdb4447f5afa6e99515869d61590ccc3bc94913a29c1849b3daf68451024d7d42fb4aa23ea

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            576914a27de330fd64fa8e17ded47830

            SHA1

            e57d98d7f5829f1c90ded4beb158f0417d6f4533

            SHA256

            bbc9e3d1afd25f3da26aaece4a6f2553ab4ad171d519d9c93142cb2db9e02b4d

            SHA512

            51b7914a04f714f9f91de52d9a8ddb1aed1205a0c58e21a38b4665260e69b05ae12c6cb3264d416781aec396db4eb16a41a36ba0f2de03d5f38cde3f13f9da53

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b7f3ec7d3f5c7734e40a574391d4d1a8

            SHA1

            9808944121e6cf76c9fe962aa56bc1bf008221dd

            SHA256

            a4cb5a514215217f1c8252fee9739e4883d14431f7f78e6ab3a76ecfbd6263d4

            SHA512

            daef5e087c86e96dc991f9eda3c7c1ced10c6ca169811bb411b0b35637a1b269785ae2d327e8a7ea707b9530cb9ca4c971ec6a2f3d3d019747d4aa539ba5e8d1

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a91185cf8d21793c4ffd35ff8181294b

            SHA1

            7ee1e17ebf7e34d957e01b158ba2882f208d659b

            SHA256

            203416e90b819c1d757d937876bd278056f0cf316508b57a9cf03293d4757e9a

            SHA512

            f9127ad099f166c34ba95f2fd6c74dd0d0eb4c040dcb16647327568b0668444639d44e7fd246e122b66b6ba5e6972d8adcd2204d7c2ec2b6d8a9dc14d1df06b2

          • memory/304-81-0x0000000000000000-mapping.dmp

          • memory/316-82-0x0000000000000000-mapping.dmp

          • memory/328-64-0x0000000000000000-mapping.dmp

          • memory/364-61-0x0000000000000000-mapping.dmp

          • memory/584-59-0x0000000000000000-mapping.dmp

          • memory/840-70-0x0000000000000000-mapping.dmp

          • memory/900-87-0x0000000000000000-mapping.dmp

          • memory/1048-62-0x0000000000000000-mapping.dmp

          • memory/1104-58-0x0000000000000000-mapping.dmp

          • memory/1336-54-0x0000000075001000-0x0000000075003000-memory.dmp

            Filesize

            8KB

          • memory/1336-75-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1336-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1336-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1420-77-0x0000000000000000-mapping.dmp

          • memory/1776-88-0x0000000000000000-mapping.dmp