Analysis

  • max time kernel
    35s
  • 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 10:34

General

  • Target

    0da750e4d5f91045d4e9de690058edf4ad8b90e9b73936ddd9140735b0cf26a6.exe

  • Size

    595KB

  • MD5

    74f3d02f1345108538a02400e947f9b3

  • SHA1

    7d6e727bd8c24210dc80a7670bba38025acca59d

  • SHA256

    0da750e4d5f91045d4e9de690058edf4ad8b90e9b73936ddd9140735b0cf26a6

  • SHA512

    889c2b0d9c4f1a3c76492ddc129cd126c0b83fcd495a3c995183d6afeef34e72d624b0997658ca129782ca4d148a28065facee8cf5bf5db778c1dc4019db0ba8

  • SSDEEP

    12288:PIny5DYTCI5S2U0a5atKi54GaKbOqVCDpoAbPK4JjUJd3ZBTBhx6:XUTCuSZbk/yv9o+K4J8pHhx

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\0da750e4d5f91045d4e9de690058edf4ad8b90e9b73936ddd9140735b0cf26a6.exe
    "C:\Users\Admin\AppData\Local\Temp\0da750e4d5f91045d4e9de690058edf4ad8b90e9b73936ddd9140735b0cf26a6.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:1392
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1732
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1536
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1688
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:604
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1692
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1860
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:896
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1552
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1252
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1388
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1504
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:748
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1516

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4bd36ce9d2d0fd757f8885e7943dce54

            SHA1

            8e1306f41021857e49dd6ca4484615bceb433e9e

            SHA256

            7358be84c15b97cad5f9aec3b02c2208181637fa28b209a1cabb7334f8dbf10c

            SHA512

            8468b681e672f0ca325e03e6f8f384deabb4b03fbc969b94c3ecfbe48922e71ded3c4a26445f4853c9a40b16cb091df29702e338c0a01cc233f7225619ae4c95

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            59bb03a71416b38ac325bab9875b224c

            SHA1

            4bf1dcbae187c6ab98b644de7c4d9643dc76eb73

            SHA256

            b7099ca871b976c66a4169cbffc89cc818067dbc7f57a5ce6c5eb8904fa20259

            SHA512

            6befd63436c97321120b1be8176efbc321e809d699f58f99a4c334a05f8b74bf5dbd11fbb22f747e06baad355d6c94aac96aaf1d7a3a468c10f66b1f507c1266

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            0b95ffcf7d26124b9774cdd0bb9cde4d

            SHA1

            71789cf6429f6e663a484a4960a8d11a937ca873

            SHA256

            e4c54a797275f40b17a08b698c1fe1e19c0c2221bbbb6262019f3bca7ab2340e

            SHA512

            ef8eb491081408c94f65e511412ec2e395f67157574a7c1ed17e1523674c238275e9d51be4ba82b0c3dc86a7d69e704e17061612fe4816c8c185aa143333fcff

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ed3f437b0245c8a959965733d9955547

            SHA1

            fd571a0160c339a69a629deedf94ec29c49c73e4

            SHA256

            d512ac746c7591ad0f389ac9377e8cceb7deec1fdf12461a5443a125952b1345

            SHA512

            60344622776a1cff4e24bdecafb611492250712271ce389ab28447b406dbfb3897560b1bfd7f142cf68460f691de1fae252393e50735d821b7dcdd8b44dfd514

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ed3f437b0245c8a959965733d9955547

            SHA1

            fd571a0160c339a69a629deedf94ec29c49c73e4

            SHA256

            d512ac746c7591ad0f389ac9377e8cceb7deec1fdf12461a5443a125952b1345

            SHA512

            60344622776a1cff4e24bdecafb611492250712271ce389ab28447b406dbfb3897560b1bfd7f142cf68460f691de1fae252393e50735d821b7dcdd8b44dfd514

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            1735653dfe787d65055fd80b68eb6d4d

            SHA1

            c0f144943303bcdc3ffa66ffb4b4e852a42ea505

            SHA256

            304ce69f26fba4d375a0433c7a2fb4ac2d9309cbb170bec3fbefa4d29441a324

            SHA512

            a8b794fb299ff794ef3f77c240af8553a16da53c85e96ffdb9ebe523e58d7d6f94ff4ae0c51f3a03d1772d6347b20ab04876a9062381ccd7226700fb1b5a8f63

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            1735653dfe787d65055fd80b68eb6d4d

            SHA1

            c0f144943303bcdc3ffa66ffb4b4e852a42ea505

            SHA256

            304ce69f26fba4d375a0433c7a2fb4ac2d9309cbb170bec3fbefa4d29441a324

            SHA512

            a8b794fb299ff794ef3f77c240af8553a16da53c85e96ffdb9ebe523e58d7d6f94ff4ae0c51f3a03d1772d6347b20ab04876a9062381ccd7226700fb1b5a8f63

          • \Users\Admin\AppData\Local\Temp\nst725.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst725.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst725.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst725.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst725.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4bd36ce9d2d0fd757f8885e7943dce54

            SHA1

            8e1306f41021857e49dd6ca4484615bceb433e9e

            SHA256

            7358be84c15b97cad5f9aec3b02c2208181637fa28b209a1cabb7334f8dbf10c

            SHA512

            8468b681e672f0ca325e03e6f8f384deabb4b03fbc969b94c3ecfbe48922e71ded3c4a26445f4853c9a40b16cb091df29702e338c0a01cc233f7225619ae4c95

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4bd36ce9d2d0fd757f8885e7943dce54

            SHA1

            8e1306f41021857e49dd6ca4484615bceb433e9e

            SHA256

            7358be84c15b97cad5f9aec3b02c2208181637fa28b209a1cabb7334f8dbf10c

            SHA512

            8468b681e672f0ca325e03e6f8f384deabb4b03fbc969b94c3ecfbe48922e71ded3c4a26445f4853c9a40b16cb091df29702e338c0a01cc233f7225619ae4c95

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            4bd36ce9d2d0fd757f8885e7943dce54

            SHA1

            8e1306f41021857e49dd6ca4484615bceb433e9e

            SHA256

            7358be84c15b97cad5f9aec3b02c2208181637fa28b209a1cabb7334f8dbf10c

            SHA512

            8468b681e672f0ca325e03e6f8f384deabb4b03fbc969b94c3ecfbe48922e71ded3c4a26445f4853c9a40b16cb091df29702e338c0a01cc233f7225619ae4c95

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            59bb03a71416b38ac325bab9875b224c

            SHA1

            4bf1dcbae187c6ab98b644de7c4d9643dc76eb73

            SHA256

            b7099ca871b976c66a4169cbffc89cc818067dbc7f57a5ce6c5eb8904fa20259

            SHA512

            6befd63436c97321120b1be8176efbc321e809d699f58f99a4c334a05f8b74bf5dbd11fbb22f747e06baad355d6c94aac96aaf1d7a3a468c10f66b1f507c1266

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            59bb03a71416b38ac325bab9875b224c

            SHA1

            4bf1dcbae187c6ab98b644de7c4d9643dc76eb73

            SHA256

            b7099ca871b976c66a4169cbffc89cc818067dbc7f57a5ce6c5eb8904fa20259

            SHA512

            6befd63436c97321120b1be8176efbc321e809d699f58f99a4c334a05f8b74bf5dbd11fbb22f747e06baad355d6c94aac96aaf1d7a3a468c10f66b1f507c1266

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            0b95ffcf7d26124b9774cdd0bb9cde4d

            SHA1

            71789cf6429f6e663a484a4960a8d11a937ca873

            SHA256

            e4c54a797275f40b17a08b698c1fe1e19c0c2221bbbb6262019f3bca7ab2340e

            SHA512

            ef8eb491081408c94f65e511412ec2e395f67157574a7c1ed17e1523674c238275e9d51be4ba82b0c3dc86a7d69e704e17061612fe4816c8c185aa143333fcff

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            ed3f437b0245c8a959965733d9955547

            SHA1

            fd571a0160c339a69a629deedf94ec29c49c73e4

            SHA256

            d512ac746c7591ad0f389ac9377e8cceb7deec1fdf12461a5443a125952b1345

            SHA512

            60344622776a1cff4e24bdecafb611492250712271ce389ab28447b406dbfb3897560b1bfd7f142cf68460f691de1fae252393e50735d821b7dcdd8b44dfd514

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            1735653dfe787d65055fd80b68eb6d4d

            SHA1

            c0f144943303bcdc3ffa66ffb4b4e852a42ea505

            SHA256

            304ce69f26fba4d375a0433c7a2fb4ac2d9309cbb170bec3fbefa4d29441a324

            SHA512

            a8b794fb299ff794ef3f77c240af8553a16da53c85e96ffdb9ebe523e58d7d6f94ff4ae0c51f3a03d1772d6347b20ab04876a9062381ccd7226700fb1b5a8f63

          • memory/604-62-0x0000000000000000-mapping.dmp
          • memory/896-76-0x0000000000000000-mapping.dmp
          • memory/1252-81-0x0000000000000000-mapping.dmp
          • memory/1388-86-0x0000000000000000-mapping.dmp
          • memory/1392-54-0x0000000075521000-0x0000000075523000-memory.dmp
            Filesize

            8KB

          • memory/1392-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1392-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1504-87-0x0000000000000000-mapping.dmp
          • memory/1536-58-0x0000000000000000-mapping.dmp
          • memory/1552-80-0x0000000000000000-mapping.dmp
          • memory/1688-61-0x0000000000000000-mapping.dmp
          • memory/1692-64-0x0000000000000000-mapping.dmp
          • memory/1732-57-0x0000000000000000-mapping.dmp
          • memory/1860-70-0x0000000000000000-mapping.dmp