Analysis

  • max time kernel
    59s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:24

General

  • Target

    6960232c7711461f6e7c46049fad25976796510973f1c461eceb0b9bcefea568.exe

  • Size

    601KB

  • MD5

    f45e60ea1b1eff54ff3d7ca746afd768

  • SHA1

    1dc2a346b9cf13eaf59d663900ece2917bcdb443

  • SHA256

    6960232c7711461f6e7c46049fad25976796510973f1c461eceb0b9bcefea568

  • SHA512

    4ab90b83e60ceb78ab10b6260de37160799bad621175b8b77afc30af9105b9ef9f76e79c1d687436f759e7d19f82a768ebe85ae614b0373a64f363da35241fa6

  • SSDEEP

    12288:pIny5DYTD+ufOo6UQP0FDzJtgKQlT9S6EUVpZ84uK:FUTD+u2MhJtgKQlT/VVpZBx

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\6960232c7711461f6e7c46049fad25976796510973f1c461eceb0b9bcefea568.exe
    "C:\Users\Admin\AppData\Local\Temp\6960232c7711461f6e7c46049fad25976796510973f1c461eceb0b9bcefea568.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:1208
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:564
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:776
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:920
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:752
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1924
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:824
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1600
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1952
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:636
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1116
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2036
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1268
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1660

          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

            0001d9d7c953854c40341b4b6f3bd8ac

            SHA1

            ca2ed1a4062660f98a226d72ec136596e565e20e

            SHA256

            b04b41d9431106c3ba405c2f3d4a5213f620e7b40bd5aa95caab3ccf91831920

            SHA512

            26e9137a6d6352861f7003560983c2ecaab8f326edbed8197fdf07114ddf01cb6d486edf4922e00dbdbfe911dfe214014aaf504ba57978840f984a52dd1931d1

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

            241KB

            MD5

            0e85a1ba0b1835c7de682de5efa4e93a

            SHA1

            29dc386bbd0eda7ac544b0a462de362718571a77

            SHA256

            ebca6be22e768c8ff2bf7634d74c0e9e41e607a58d88af4a44b895ab6fb3ee96

            SHA512

            7032244ba8a4bef399958ffae5f494401b8e04bfae3ef394e62cc2485a6f13c55f65f22fcf3f9cdc6eb522f8a8355710f5bc85c066f602502a806f5ba560fade

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

            108KB

            MD5

            df61b56dd44b6ca2d36d4e041e6c9582

            SHA1

            38325e2e7cd2077b83c07a76b50a9ec456bc4712

            SHA256

            53a456527a1ea6a22ddaaa53c2b55678948d110670ad5f70ec7eae383936a8ff

            SHA512

            d6ca16857a21a8af345657263801cd977f558e0faa231110638bd7f925303867b675b5f08cadbd3942bdf924998986cd62c9d29740bedb019cf972be79b647bd

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

            176KB

            MD5

            2536a7b6c5a276cbe946a68b9f5eb255

            SHA1

            1cad24dd1a1264f262318def09eaf5bd2773053b

            SHA256

            f8291dc66a9397701973ebd0cc69183322bad13ffacfb62b2e3cb20afadb748d

            SHA512

            aebaa927b5437dc9b6726641615f02169309cdb11e4ea5198c8c0026885394dff30e80da499d9785341bfd350239ff937879e03ae1df23aba3a91216ec073107

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

            176KB

            MD5

            2536a7b6c5a276cbe946a68b9f5eb255

            SHA1

            1cad24dd1a1264f262318def09eaf5bd2773053b

            SHA256

            f8291dc66a9397701973ebd0cc69183322bad13ffacfb62b2e3cb20afadb748d

            SHA512

            aebaa927b5437dc9b6726641615f02169309cdb11e4ea5198c8c0026885394dff30e80da499d9785341bfd350239ff937879e03ae1df23aba3a91216ec073107

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

            158KB

            MD5

            ed1f8102e996cd373a07777b49115743

            SHA1

            44822260e38dbfbb71c1dd80747de3c7f0f38a93

            SHA256

            2a2c57ba7777b5206434798ca8b3b07c898447c546c055c028f357e2ef65ee71

            SHA512

            a0e20b8982c681a5e3181a010b1080633a7196ed141765e6ea7153eb519862256761bad1fb852e130ce1b952bcc5ddd95b1f1918223079b7ab6ae137f3c55d82

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

            158KB

            MD5

            ed1f8102e996cd373a07777b49115743

            SHA1

            44822260e38dbfbb71c1dd80747de3c7f0f38a93

            SHA256

            2a2c57ba7777b5206434798ca8b3b07c898447c546c055c028f357e2ef65ee71

            SHA512

            a0e20b8982c681a5e3181a010b1080633a7196ed141765e6ea7153eb519862256761bad1fb852e130ce1b952bcc5ddd95b1f1918223079b7ab6ae137f3c55d82

          • \Users\Admin\AppData\Local\Temp\nseD29E.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseD29E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseD29E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseD29E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseD29E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0001d9d7c953854c40341b4b6f3bd8ac

            SHA1

            ca2ed1a4062660f98a226d72ec136596e565e20e

            SHA256

            b04b41d9431106c3ba405c2f3d4a5213f620e7b40bd5aa95caab3ccf91831920

            SHA512

            26e9137a6d6352861f7003560983c2ecaab8f326edbed8197fdf07114ddf01cb6d486edf4922e00dbdbfe911dfe214014aaf504ba57978840f984a52dd1931d1

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0001d9d7c953854c40341b4b6f3bd8ac

            SHA1

            ca2ed1a4062660f98a226d72ec136596e565e20e

            SHA256

            b04b41d9431106c3ba405c2f3d4a5213f620e7b40bd5aa95caab3ccf91831920

            SHA512

            26e9137a6d6352861f7003560983c2ecaab8f326edbed8197fdf07114ddf01cb6d486edf4922e00dbdbfe911dfe214014aaf504ba57978840f984a52dd1931d1

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0001d9d7c953854c40341b4b6f3bd8ac

            SHA1

            ca2ed1a4062660f98a226d72ec136596e565e20e

            SHA256

            b04b41d9431106c3ba405c2f3d4a5213f620e7b40bd5aa95caab3ccf91831920

            SHA512

            26e9137a6d6352861f7003560983c2ecaab8f326edbed8197fdf07114ddf01cb6d486edf4922e00dbdbfe911dfe214014aaf504ba57978840f984a52dd1931d1

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            0e85a1ba0b1835c7de682de5efa4e93a

            SHA1

            29dc386bbd0eda7ac544b0a462de362718571a77

            SHA256

            ebca6be22e768c8ff2bf7634d74c0e9e41e607a58d88af4a44b895ab6fb3ee96

            SHA512

            7032244ba8a4bef399958ffae5f494401b8e04bfae3ef394e62cc2485a6f13c55f65f22fcf3f9cdc6eb522f8a8355710f5bc85c066f602502a806f5ba560fade

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            0e85a1ba0b1835c7de682de5efa4e93a

            SHA1

            29dc386bbd0eda7ac544b0a462de362718571a77

            SHA256

            ebca6be22e768c8ff2bf7634d74c0e9e41e607a58d88af4a44b895ab6fb3ee96

            SHA512

            7032244ba8a4bef399958ffae5f494401b8e04bfae3ef394e62cc2485a6f13c55f65f22fcf3f9cdc6eb522f8a8355710f5bc85c066f602502a806f5ba560fade

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            df61b56dd44b6ca2d36d4e041e6c9582

            SHA1

            38325e2e7cd2077b83c07a76b50a9ec456bc4712

            SHA256

            53a456527a1ea6a22ddaaa53c2b55678948d110670ad5f70ec7eae383936a8ff

            SHA512

            d6ca16857a21a8af345657263801cd977f558e0faa231110638bd7f925303867b675b5f08cadbd3942bdf924998986cd62c9d29740bedb019cf972be79b647bd

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            2536a7b6c5a276cbe946a68b9f5eb255

            SHA1

            1cad24dd1a1264f262318def09eaf5bd2773053b

            SHA256

            f8291dc66a9397701973ebd0cc69183322bad13ffacfb62b2e3cb20afadb748d

            SHA512

            aebaa927b5437dc9b6726641615f02169309cdb11e4ea5198c8c0026885394dff30e80da499d9785341bfd350239ff937879e03ae1df23aba3a91216ec073107

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            ed1f8102e996cd373a07777b49115743

            SHA1

            44822260e38dbfbb71c1dd80747de3c7f0f38a93

            SHA256

            2a2c57ba7777b5206434798ca8b3b07c898447c546c055c028f357e2ef65ee71

            SHA512

            a0e20b8982c681a5e3181a010b1080633a7196ed141765e6ea7153eb519862256761bad1fb852e130ce1b952bcc5ddd95b1f1918223079b7ab6ae137f3c55d82

          • memory/564-58-0x0000000000000000-mapping.dmp
          • memory/636-82-0x0000000000000000-mapping.dmp
          • memory/752-63-0x0000000000000000-mapping.dmp
          • memory/776-60-0x0000000000000000-mapping.dmp
          • memory/824-71-0x0000000000000000-mapping.dmp
          • memory/920-62-0x0000000000000000-mapping.dmp
          • memory/1116-87-0x0000000000000000-mapping.dmp
          • memory/1208-54-0x0000000075C21000-0x0000000075C23000-memory.dmp
            Filesize

            8KB

          • memory/1208-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1208-55-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1208-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1600-77-0x0000000000000000-mapping.dmp
          • memory/1924-65-0x0000000000000000-mapping.dmp
          • memory/1952-81-0x0000000000000000-mapping.dmp
          • memory/2036-88-0x0000000000000000-mapping.dmp