Analysis

  • max time kernel
    335s
  • max time network
    359s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    26/11/2022, 23:17

General

  • Target

    7b12344d91eb57515e994ec388bfb77323655b22760f253eaabd8376e74521bb.exe

  • Size

    695KB

  • MD5

    25fa3554fd61f7e3a48fd702d61cfd64

  • SHA1

    c9a026e1c9483e800fb63aa204e6d513a8c71792

  • SHA256

    7b12344d91eb57515e994ec388bfb77323655b22760f253eaabd8376e74521bb

  • SHA512

    9764a300cca0f938b30ef80b59a9bbd2b9d6426f4c2f9ef8c21739358d4cb4f4f9802c3bf7c2349d3c067365a7cd9bfa5cfd9799b99b9ec88ef81030e651f510

  • SSDEEP

    12288:+Abu3fQ+thk6Ezvbfy0+f04GkrYJ7uUxheY+Q/:+AbuPPEzzfis4V4vak

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7b12344d91eb57515e994ec388bfb77323655b22760f253eaabd8376e74521bb.exe
    "C:\Users\Admin\AppData\Local\Temp\7b12344d91eb57515e994ec388bfb77323655b22760f253eaabd8376e74521bb.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:756
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4516
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4988
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5080
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3204
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4032
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:636
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2140
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4072
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4948
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1044
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:2892
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4436

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsk4EBF.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bc9f218844945b85ffb46b7cced1f9c4

            SHA1

            3c0782f1755d36fee8be7ec57faa5ff7b032fdc6

            SHA256

            05ded9393cb4f490fa83a2b22d0ab7abc0ff43dfe7c6ba9da4ce558cb203958b

            SHA512

            b360b1835fa997a3faa0dcd5d88dfaa55963c3a2bf539b08b8b06894c6144652254ec1ad24e6a93045232005d183d2a36706fd5ba013228bda961fa6c41a2d91

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bc9f218844945b85ffb46b7cced1f9c4

            SHA1

            3c0782f1755d36fee8be7ec57faa5ff7b032fdc6

            SHA256

            05ded9393cb4f490fa83a2b22d0ab7abc0ff43dfe7c6ba9da4ce558cb203958b

            SHA512

            b360b1835fa997a3faa0dcd5d88dfaa55963c3a2bf539b08b8b06894c6144652254ec1ad24e6a93045232005d183d2a36706fd5ba013228bda961fa6c41a2d91

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bc9f218844945b85ffb46b7cced1f9c4

            SHA1

            3c0782f1755d36fee8be7ec57faa5ff7b032fdc6

            SHA256

            05ded9393cb4f490fa83a2b22d0ab7abc0ff43dfe7c6ba9da4ce558cb203958b

            SHA512

            b360b1835fa997a3faa0dcd5d88dfaa55963c3a2bf539b08b8b06894c6144652254ec1ad24e6a93045232005d183d2a36706fd5ba013228bda961fa6c41a2d91

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bc9f218844945b85ffb46b7cced1f9c4

            SHA1

            3c0782f1755d36fee8be7ec57faa5ff7b032fdc6

            SHA256

            05ded9393cb4f490fa83a2b22d0ab7abc0ff43dfe7c6ba9da4ce558cb203958b

            SHA512

            b360b1835fa997a3faa0dcd5d88dfaa55963c3a2bf539b08b8b06894c6144652254ec1ad24e6a93045232005d183d2a36706fd5ba013228bda961fa6c41a2d91

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f2af2e586bcd548df8282a3f482b0df5

            SHA1

            5b5c98588c6fa9feced7a7ae6768f63668421c04

            SHA256

            1b9aa085e69a03c05ee19166e99e41173d97c43dff42f37b8056ae6005a52784

            SHA512

            0660a52131b56d9b07ba351a0d5af95d22662d089b2372bc752bedb4a059577a966ef670a97e7f9d4231762042181f433509a9e2dfa439e99665da9af2b5be42

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f2af2e586bcd548df8282a3f482b0df5

            SHA1

            5b5c98588c6fa9feced7a7ae6768f63668421c04

            SHA256

            1b9aa085e69a03c05ee19166e99e41173d97c43dff42f37b8056ae6005a52784

            SHA512

            0660a52131b56d9b07ba351a0d5af95d22662d089b2372bc752bedb4a059577a966ef670a97e7f9d4231762042181f433509a9e2dfa439e99665da9af2b5be42

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            f2af2e586bcd548df8282a3f482b0df5

            SHA1

            5b5c98588c6fa9feced7a7ae6768f63668421c04

            SHA256

            1b9aa085e69a03c05ee19166e99e41173d97c43dff42f37b8056ae6005a52784

            SHA512

            0660a52131b56d9b07ba351a0d5af95d22662d089b2372bc752bedb4a059577a966ef670a97e7f9d4231762042181f433509a9e2dfa439e99665da9af2b5be42

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ba9831f1f8497c390406484c3be59e6a

            SHA1

            d3773d11f56132084ee5f49954dbef5e947a6c0c

            SHA256

            c82cacf08ac3eabfef61b0ce7d480eb3481697cee7d38f2a88845c98c7168cb3

            SHA512

            78c198d7c4074a5650e60427790e10050753b8651412081033a86a5526b201f0b90cceadae0a334cd97cdbfc01f03d96eeb1656ff61054013c7450dac6608dbf

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            ba9831f1f8497c390406484c3be59e6a

            SHA1

            d3773d11f56132084ee5f49954dbef5e947a6c0c

            SHA256

            c82cacf08ac3eabfef61b0ce7d480eb3481697cee7d38f2a88845c98c7168cb3

            SHA512

            78c198d7c4074a5650e60427790e10050753b8651412081033a86a5526b201f0b90cceadae0a334cd97cdbfc01f03d96eeb1656ff61054013c7450dac6608dbf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            42c482fcfcc0ad664c6af09d5efa386a

            SHA1

            1f933a6c140dd4e00e9fe021b3da15567352d814

            SHA256

            f0c6235e4e0d9efca48634d2a721fe359768029d2e4798783df03f501e381413

            SHA512

            4f7e77f3f6e2c016e0585dcd1dfcc7a8e247e7b109cdefd1b16677c36e736780ea6162e567dc960bb7a07a8756b473a18e54c58ea9916534d2e0e39521fca7b9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            42c482fcfcc0ad664c6af09d5efa386a

            SHA1

            1f933a6c140dd4e00e9fe021b3da15567352d814

            SHA256

            f0c6235e4e0d9efca48634d2a721fe359768029d2e4798783df03f501e381413

            SHA512

            4f7e77f3f6e2c016e0585dcd1dfcc7a8e247e7b109cdefd1b16677c36e736780ea6162e567dc960bb7a07a8756b473a18e54c58ea9916534d2e0e39521fca7b9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            42c482fcfcc0ad664c6af09d5efa386a

            SHA1

            1f933a6c140dd4e00e9fe021b3da15567352d814

            SHA256

            f0c6235e4e0d9efca48634d2a721fe359768029d2e4798783df03f501e381413

            SHA512

            4f7e77f3f6e2c016e0585dcd1dfcc7a8e247e7b109cdefd1b16677c36e736780ea6162e567dc960bb7a07a8756b473a18e54c58ea9916534d2e0e39521fca7b9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            79c29c5c866a6b119122aba8bcdac3a5

            SHA1

            9b6583a25c6d15a937965722774cd4f1d92c66d1

            SHA256

            60cd4a0fe82cdb0c3da8bec9084b8f94834d24e4a3d0ff8912b3e5606c2e417e

            SHA512

            8d950d311811578877b4eeffa250958c28ad230e1224a5353d0dec25a2613727aced4a7ba8b72391b6e10395b3478aafdcfb42c9cfa21dc71d22f550d9b9c9c3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            79c29c5c866a6b119122aba8bcdac3a5

            SHA1

            9b6583a25c6d15a937965722774cd4f1d92c66d1

            SHA256

            60cd4a0fe82cdb0c3da8bec9084b8f94834d24e4a3d0ff8912b3e5606c2e417e

            SHA512

            8d950d311811578877b4eeffa250958c28ad230e1224a5353d0dec25a2613727aced4a7ba8b72391b6e10395b3478aafdcfb42c9cfa21dc71d22f550d9b9c9c3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            79c29c5c866a6b119122aba8bcdac3a5

            SHA1

            9b6583a25c6d15a937965722774cd4f1d92c66d1

            SHA256

            60cd4a0fe82cdb0c3da8bec9084b8f94834d24e4a3d0ff8912b3e5606c2e417e

            SHA512

            8d950d311811578877b4eeffa250958c28ad230e1224a5353d0dec25a2613727aced4a7ba8b72391b6e10395b3478aafdcfb42c9cfa21dc71d22f550d9b9c9c3

          • memory/1628-132-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1628-168-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB