Analysis

  • max time kernel
    12s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:31

General

  • Target

    2566e119a7fe22196ceb56d398ecbcb4db025a2abde29b6ed734e1ba7f1b1fe5.exe

  • Size

    602KB

  • MD5

    6d7c5c6c9a95727aa6701d4416eb3cd9

  • SHA1

    9e4a46b40cad31d7927f87d6e445d2673bcfe006

  • SHA256

    2566e119a7fe22196ceb56d398ecbcb4db025a2abde29b6ed734e1ba7f1b1fe5

  • SHA512

    00e20aea320b9d748c4c9652a88c253a626c072c281001985e4ad549416fb59727025c55a15721fa83133fd3fbe88085e42b50ab8d223b02fff288e7da8708f4

  • SSDEEP

    12288:dIny5DYTkIe9svo08oPIS/YyaWCat3xsZY9HE/:JUTktApPIS/YyHCOsq2

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\2566e119a7fe22196ceb56d398ecbcb4db025a2abde29b6ed734e1ba7f1b1fe5.exe
    "C:\Users\Admin\AppData\Local\Temp\2566e119a7fe22196ceb56d398ecbcb4db025a2abde29b6ed734e1ba7f1b1fe5.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:1808
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1692
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1336
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1588
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1672
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:588
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1252
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1824
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1644
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1688
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:688
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1064
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1488

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d83377e12ebbc52b88d1ce195711ba5d

            SHA1

            0b5ed39c3a1c870d500189d66dd43004208e9267

            SHA256

            77bb65ea216513454cf7df242b4416c1795e638766f3321ec09aef08a989e8a8

            SHA512

            2476ae9e7bbab28c42eb15803af04010baf13deaeba40d88dc46ce0995477aaabe3cee52ea4f9e6edf9e4f952dbbed24ae9dd65d67e2e18d68cfdbbccef75f53

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            3779e8497c40ef3bd67754f142eea1de

            SHA1

            a961505a73b97666dad0b672d32384d0704e1eff

            SHA256

            4b3850e20bfc2820776a7b7234f3f5acbdad813d0563a4a01db1383db7636102

            SHA512

            59302a8e64a3564105a02e2e7f1330f674bfba392bb35eb3e3d1df6e8bfa30c5524cf2a58c41f1d9bb4b7b5e9728202301c15142cf823c82d159191dab618a23

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8bf80ba745fd75de72b4fc63670bf6ff

            SHA1

            750f8e57ff09d69ba785e4f328ae692fca3d578c

            SHA256

            e678c590c64a3b7d597159bdf665dbb23a06af69fd0c8a84440f0ae56f4f82df

            SHA512

            862c7c4456f106bbd1f30a15a6776f5d995849bb5816d5c309596522f9100a7678d8abf8f428441fc762ad435174e37d1454f4b11705857465d501e6ca147113

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            91a0100041f8cce2639d84b35834acea

            SHA1

            1a2f2230cec4c7556abdb3ddca1a0ad7cb121c50

            SHA256

            bd312da74148ab8ce52a071f550cd14534428ce5c72d0980e7e30a361a8a1b93

            SHA512

            a8af4a20f4aed5fba958e83a5f0477c49058f36ebe165f62b734a3461e305f5599d8b2f05c6923f9ea1c2b34ec552c06aa1a98e27ef49ebb102a3db75eb92fc0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            91a0100041f8cce2639d84b35834acea

            SHA1

            1a2f2230cec4c7556abdb3ddca1a0ad7cb121c50

            SHA256

            bd312da74148ab8ce52a071f550cd14534428ce5c72d0980e7e30a361a8a1b93

            SHA512

            a8af4a20f4aed5fba958e83a5f0477c49058f36ebe165f62b734a3461e305f5599d8b2f05c6923f9ea1c2b34ec552c06aa1a98e27ef49ebb102a3db75eb92fc0

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3ba3ac9fd64f12d4a436b5826424aa31

            SHA1

            7cc4944b1762906be6876095845561fcf5948e8d

            SHA256

            ac25b74fd8915105169a1fa82aee5e80a4112417faead94c16669747961f08e1

            SHA512

            b0cff22fc9a2e320a99282de28ed5146fde25f0ab5ddc8f220f4188815e42fdc7f53e8369e5173be83ac97c05de9cc309b40d040ae5a3a10c7a979196e58ded4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3ba3ac9fd64f12d4a436b5826424aa31

            SHA1

            7cc4944b1762906be6876095845561fcf5948e8d

            SHA256

            ac25b74fd8915105169a1fa82aee5e80a4112417faead94c16669747961f08e1

            SHA512

            b0cff22fc9a2e320a99282de28ed5146fde25f0ab5ddc8f220f4188815e42fdc7f53e8369e5173be83ac97c05de9cc309b40d040ae5a3a10c7a979196e58ded4

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6BD0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d83377e12ebbc52b88d1ce195711ba5d

            SHA1

            0b5ed39c3a1c870d500189d66dd43004208e9267

            SHA256

            77bb65ea216513454cf7df242b4416c1795e638766f3321ec09aef08a989e8a8

            SHA512

            2476ae9e7bbab28c42eb15803af04010baf13deaeba40d88dc46ce0995477aaabe3cee52ea4f9e6edf9e4f952dbbed24ae9dd65d67e2e18d68cfdbbccef75f53

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d83377e12ebbc52b88d1ce195711ba5d

            SHA1

            0b5ed39c3a1c870d500189d66dd43004208e9267

            SHA256

            77bb65ea216513454cf7df242b4416c1795e638766f3321ec09aef08a989e8a8

            SHA512

            2476ae9e7bbab28c42eb15803af04010baf13deaeba40d88dc46ce0995477aaabe3cee52ea4f9e6edf9e4f952dbbed24ae9dd65d67e2e18d68cfdbbccef75f53

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d83377e12ebbc52b88d1ce195711ba5d

            SHA1

            0b5ed39c3a1c870d500189d66dd43004208e9267

            SHA256

            77bb65ea216513454cf7df242b4416c1795e638766f3321ec09aef08a989e8a8

            SHA512

            2476ae9e7bbab28c42eb15803af04010baf13deaeba40d88dc46ce0995477aaabe3cee52ea4f9e6edf9e4f952dbbed24ae9dd65d67e2e18d68cfdbbccef75f53

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            3779e8497c40ef3bd67754f142eea1de

            SHA1

            a961505a73b97666dad0b672d32384d0704e1eff

            SHA256

            4b3850e20bfc2820776a7b7234f3f5acbdad813d0563a4a01db1383db7636102

            SHA512

            59302a8e64a3564105a02e2e7f1330f674bfba392bb35eb3e3d1df6e8bfa30c5524cf2a58c41f1d9bb4b7b5e9728202301c15142cf823c82d159191dab618a23

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            3779e8497c40ef3bd67754f142eea1de

            SHA1

            a961505a73b97666dad0b672d32384d0704e1eff

            SHA256

            4b3850e20bfc2820776a7b7234f3f5acbdad813d0563a4a01db1383db7636102

            SHA512

            59302a8e64a3564105a02e2e7f1330f674bfba392bb35eb3e3d1df6e8bfa30c5524cf2a58c41f1d9bb4b7b5e9728202301c15142cf823c82d159191dab618a23

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8bf80ba745fd75de72b4fc63670bf6ff

            SHA1

            750f8e57ff09d69ba785e4f328ae692fca3d578c

            SHA256

            e678c590c64a3b7d597159bdf665dbb23a06af69fd0c8a84440f0ae56f4f82df

            SHA512

            862c7c4456f106bbd1f30a15a6776f5d995849bb5816d5c309596522f9100a7678d8abf8f428441fc762ad435174e37d1454f4b11705857465d501e6ca147113

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            91a0100041f8cce2639d84b35834acea

            SHA1

            1a2f2230cec4c7556abdb3ddca1a0ad7cb121c50

            SHA256

            bd312da74148ab8ce52a071f550cd14534428ce5c72d0980e7e30a361a8a1b93

            SHA512

            a8af4a20f4aed5fba958e83a5f0477c49058f36ebe165f62b734a3461e305f5599d8b2f05c6923f9ea1c2b34ec552c06aa1a98e27ef49ebb102a3db75eb92fc0

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3ba3ac9fd64f12d4a436b5826424aa31

            SHA1

            7cc4944b1762906be6876095845561fcf5948e8d

            SHA256

            ac25b74fd8915105169a1fa82aee5e80a4112417faead94c16669747961f08e1

            SHA512

            b0cff22fc9a2e320a99282de28ed5146fde25f0ab5ddc8f220f4188815e42fdc7f53e8369e5173be83ac97c05de9cc309b40d040ae5a3a10c7a979196e58ded4

          • memory/588-70-0x0000000000000000-mapping.dmp

          • memory/688-87-0x0000000000000000-mapping.dmp

          • memory/956-57-0x0000000000000000-mapping.dmp

          • memory/1252-76-0x0000000000000000-mapping.dmp

          • memory/1336-61-0x0000000000000000-mapping.dmp

          • memory/1588-62-0x0000000000000000-mapping.dmp

          • memory/1644-81-0x0000000000000000-mapping.dmp

          • memory/1672-64-0x0000000000000000-mapping.dmp

          • memory/1688-86-0x0000000000000000-mapping.dmp

          • memory/1692-59-0x0000000000000000-mapping.dmp

          • memory/1808-54-0x00000000751A1000-0x00000000751A3000-memory.dmp

            Filesize

            8KB

          • memory/1808-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1808-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1824-80-0x0000000000000000-mapping.dmp