Analysis

  • max time kernel
    81s
  • 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 10:57

General

  • Target

    52c7d024becca32f92b821cf2a728c89afefe925b0d8e4991a74061d451c676b.exe

  • Size

    446KB

  • MD5

    deb88485e96e6746128b1fce1d67debb

  • SHA1

    a1c9c0c1770c66b1198c8d23707830e3c840ef84

  • SHA256

    52c7d024becca32f92b821cf2a728c89afefe925b0d8e4991a74061d451c676b

  • SHA512

    72cb828fab7240650932407b856c7e89cd9b78b794a0b16359ff4f7567ecd267e800e894e3cd79090036649ca97142b167ba12514c843014109f1870a143e2c6

  • SSDEEP

    12288:s268WZO9er6Nodln7MQOyzHiGOlddJPtbjXoxEj/zB/X6:s2Nt7qnRH9OfljyEt6

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\52c7d024becca32f92b821cf2a728c89afefe925b0d8e4991a74061d451c676b.exe
    "C:\Users\Admin\AppData\Local\Temp\52c7d024becca32f92b821cf2a728c89afefe925b0d8e4991a74061d451c676b.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:1628
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:796
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1180
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:720
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:856
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1820
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:556
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:676
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1964
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2036
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1812
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2028
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:548
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1520

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcd533cae497a77ddb3f551239fc5ad4

            SHA1

            ab33efbafe2bc9ce26786b96f407f7e471dcf586

            SHA256

            db9616aac812d781cfa9f17f6e74e68b2a837c8c98e3a6d20112378cfc3db9e7

            SHA512

            661ffa39054a13c1a78f97d34234767739afc99097555effec1c51b3b7ce83695648a50fbcf3f246a0d3b3c4df9016318714044a048bbbfddbd11fd28437dc69

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            88eadeef348c028c7b591c284b09ff0c

            SHA1

            d80681471ac909376fccc4bdfddf083f86f7287b

            SHA256

            916bad8bdc877bf5b8b7a964ffb9b5c551a1d9d09888e9cd6c4310938af6fba3

            SHA512

            8806ed5780bdeed9cce2a0b6ac28680d6e169e77c662ece3a9ada7206753cfae825eccb7651e43cb06fdbca2b520b765b76a629f88f5b7f217a093f581116d90

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1a417136a32c6cc31e90e722f9f47977

            SHA1

            22f65c3b2a61785eb42903faeb6862e789cdc837

            SHA256

            c88e79bd8896546229b8cd92aec76dc7feb866def7fbad09679adff3e02da307

            SHA512

            9900269f053cb1b371538c641fd5d383658824ee119dcce006cfa6222829ac0018b06dd8bcaa137ca82db7e05d54b581efd8f1f891115b57f64920c1450da12a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0da1c577788784775507a0308980ac8b

            SHA1

            f8e07f1d1365c86e0471291e6156798873cbd9a2

            SHA256

            3c147b15e5bdef69d5c43cf77b7800a5f078efb08a6227272bffa5650ee16fea

            SHA512

            01becbf66dbd66d8fd0b6c5b5c5643b850ef174e26ac521c1ee71f7fbb94c85d2bc5803a36b9c5062f37f8744a680e36045b588ae37cefa3b4b950d45bfc9417

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0da1c577788784775507a0308980ac8b

            SHA1

            f8e07f1d1365c86e0471291e6156798873cbd9a2

            SHA256

            3c147b15e5bdef69d5c43cf77b7800a5f078efb08a6227272bffa5650ee16fea

            SHA512

            01becbf66dbd66d8fd0b6c5b5c5643b850ef174e26ac521c1ee71f7fbb94c85d2bc5803a36b9c5062f37f8744a680e36045b588ae37cefa3b4b950d45bfc9417

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c820ea62fbbe89f9f23c06d145a8c7bf

            SHA1

            66ff0adc3c449cd490e13224538af618149d3d0d

            SHA256

            9c74241b2c5ba8f99cb7ff6e98493e48cb82afd0ce360ed8cb889429cbaf2e6d

            SHA512

            9dcc117e4a4be0416d8dbe28ccd499644fb6b789bee01f8807c83221a06b64ff507291591f10633ba656da42834b30968394c916349de1b0bf2bb64b37603395

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c820ea62fbbe89f9f23c06d145a8c7bf

            SHA1

            66ff0adc3c449cd490e13224538af618149d3d0d

            SHA256

            9c74241b2c5ba8f99cb7ff6e98493e48cb82afd0ce360ed8cb889429cbaf2e6d

            SHA512

            9dcc117e4a4be0416d8dbe28ccd499644fb6b789bee01f8807c83221a06b64ff507291591f10633ba656da42834b30968394c916349de1b0bf2bb64b37603395

          • \Users\Admin\AppData\Local\Temp\nsoDC9C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoDC9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoDC9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoDC9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoDC9C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcd533cae497a77ddb3f551239fc5ad4

            SHA1

            ab33efbafe2bc9ce26786b96f407f7e471dcf586

            SHA256

            db9616aac812d781cfa9f17f6e74e68b2a837c8c98e3a6d20112378cfc3db9e7

            SHA512

            661ffa39054a13c1a78f97d34234767739afc99097555effec1c51b3b7ce83695648a50fbcf3f246a0d3b3c4df9016318714044a048bbbfddbd11fd28437dc69

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcd533cae497a77ddb3f551239fc5ad4

            SHA1

            ab33efbafe2bc9ce26786b96f407f7e471dcf586

            SHA256

            db9616aac812d781cfa9f17f6e74e68b2a837c8c98e3a6d20112378cfc3db9e7

            SHA512

            661ffa39054a13c1a78f97d34234767739afc99097555effec1c51b3b7ce83695648a50fbcf3f246a0d3b3c4df9016318714044a048bbbfddbd11fd28437dc69

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fcd533cae497a77ddb3f551239fc5ad4

            SHA1

            ab33efbafe2bc9ce26786b96f407f7e471dcf586

            SHA256

            db9616aac812d781cfa9f17f6e74e68b2a837c8c98e3a6d20112378cfc3db9e7

            SHA512

            661ffa39054a13c1a78f97d34234767739afc99097555effec1c51b3b7ce83695648a50fbcf3f246a0d3b3c4df9016318714044a048bbbfddbd11fd28437dc69

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            88eadeef348c028c7b591c284b09ff0c

            SHA1

            d80681471ac909376fccc4bdfddf083f86f7287b

            SHA256

            916bad8bdc877bf5b8b7a964ffb9b5c551a1d9d09888e9cd6c4310938af6fba3

            SHA512

            8806ed5780bdeed9cce2a0b6ac28680d6e169e77c662ece3a9ada7206753cfae825eccb7651e43cb06fdbca2b520b765b76a629f88f5b7f217a093f581116d90

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            88eadeef348c028c7b591c284b09ff0c

            SHA1

            d80681471ac909376fccc4bdfddf083f86f7287b

            SHA256

            916bad8bdc877bf5b8b7a964ffb9b5c551a1d9d09888e9cd6c4310938af6fba3

            SHA512

            8806ed5780bdeed9cce2a0b6ac28680d6e169e77c662ece3a9ada7206753cfae825eccb7651e43cb06fdbca2b520b765b76a629f88f5b7f217a093f581116d90

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1a417136a32c6cc31e90e722f9f47977

            SHA1

            22f65c3b2a61785eb42903faeb6862e789cdc837

            SHA256

            c88e79bd8896546229b8cd92aec76dc7feb866def7fbad09679adff3e02da307

            SHA512

            9900269f053cb1b371538c641fd5d383658824ee119dcce006cfa6222829ac0018b06dd8bcaa137ca82db7e05d54b581efd8f1f891115b57f64920c1450da12a

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            0da1c577788784775507a0308980ac8b

            SHA1

            f8e07f1d1365c86e0471291e6156798873cbd9a2

            SHA256

            3c147b15e5bdef69d5c43cf77b7800a5f078efb08a6227272bffa5650ee16fea

            SHA512

            01becbf66dbd66d8fd0b6c5b5c5643b850ef174e26ac521c1ee71f7fbb94c85d2bc5803a36b9c5062f37f8744a680e36045b588ae37cefa3b4b950d45bfc9417

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c820ea62fbbe89f9f23c06d145a8c7bf

            SHA1

            66ff0adc3c449cd490e13224538af618149d3d0d

            SHA256

            9c74241b2c5ba8f99cb7ff6e98493e48cb82afd0ce360ed8cb889429cbaf2e6d

            SHA512

            9dcc117e4a4be0416d8dbe28ccd499644fb6b789bee01f8807c83221a06b64ff507291591f10633ba656da42834b30968394c916349de1b0bf2bb64b37603395

          • memory/556-69-0x0000000000000000-mapping.dmp

          • memory/676-75-0x0000000000000000-mapping.dmp

          • memory/720-60-0x0000000000000000-mapping.dmp

          • memory/796-57-0x0000000000000000-mapping.dmp

          • memory/856-61-0x0000000000000000-mapping.dmp

          • memory/1180-58-0x0000000000000000-mapping.dmp

          • memory/1628-54-0x0000000074F01000-0x0000000074F03000-memory.dmp

            Filesize

            8KB

          • memory/1812-85-0x0000000000000000-mapping.dmp

          • memory/1820-63-0x0000000000000000-mapping.dmp

          • memory/1964-79-0x0000000000000000-mapping.dmp

          • memory/2028-86-0x0000000000000000-mapping.dmp

          • memory/2036-80-0x0000000000000000-mapping.dmp