Analysis

  • max time kernel
    112s
  • max time network
    148s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:30

General

  • Target

    299b11aebfd8b829ce0fb92cc04ba6d9994946e4f7d6686a93e28ef2e28b9ac0.exe

  • Size

    601KB

  • MD5

    e1700bf609118ed5e6a3a462c52cb08f

  • SHA1

    dd6460108b672133fea6637cae99cf62dd23d59e

  • SHA256

    299b11aebfd8b829ce0fb92cc04ba6d9994946e4f7d6686a93e28ef2e28b9ac0

  • SHA512

    aaf020ac5eab6742c4d032ae0b32cb24d712cfbc6e14dced454a260b2b690c99f4729042735a49b30fae697dad02901fb5ec663ec2a0fe068864239c12664810

  • SSDEEP

    12288:2Iny5DYTmxk1Ys4ER7uAAOj7vQrGiTl9dJKoNtCYV:4UT51l5RAOjrmfR9moNke

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\299b11aebfd8b829ce0fb92cc04ba6d9994946e4f7d6686a93e28ef2e28b9ac0.exe
    "C:\Users\Admin\AppData\Local\Temp\299b11aebfd8b829ce0fb92cc04ba6d9994946e4f7d6686a93e28ef2e28b9ac0.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:4764
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4452
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1428
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4148
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:560
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4964
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4212
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2352
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5036
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:5096
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1792
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4160
          • 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:4444
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3140

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsrF321.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            970d49068a8d3475acd607d656fa3da3

            SHA1

            93883f1d1c3d54b9b459d8cf4cd36129ba5a8c53

            SHA256

            dcad33d382f5be3cfad59c2fb87b2d627bc311b48740bffc8848bbe40da40be6

            SHA512

            da10ba06886d653cfbf2ce7808408a1584c7a1f1b6023cf8c33c0124210da569a3231f061db3fa59792c157f22828b518559c675d5562d5e8e7d8a7f85c49199

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            970d49068a8d3475acd607d656fa3da3

            SHA1

            93883f1d1c3d54b9b459d8cf4cd36129ba5a8c53

            SHA256

            dcad33d382f5be3cfad59c2fb87b2d627bc311b48740bffc8848bbe40da40be6

            SHA512

            da10ba06886d653cfbf2ce7808408a1584c7a1f1b6023cf8c33c0124210da569a3231f061db3fa59792c157f22828b518559c675d5562d5e8e7d8a7f85c49199

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            970d49068a8d3475acd607d656fa3da3

            SHA1

            93883f1d1c3d54b9b459d8cf4cd36129ba5a8c53

            SHA256

            dcad33d382f5be3cfad59c2fb87b2d627bc311b48740bffc8848bbe40da40be6

            SHA512

            da10ba06886d653cfbf2ce7808408a1584c7a1f1b6023cf8c33c0124210da569a3231f061db3fa59792c157f22828b518559c675d5562d5e8e7d8a7f85c49199

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            970d49068a8d3475acd607d656fa3da3

            SHA1

            93883f1d1c3d54b9b459d8cf4cd36129ba5a8c53

            SHA256

            dcad33d382f5be3cfad59c2fb87b2d627bc311b48740bffc8848bbe40da40be6

            SHA512

            da10ba06886d653cfbf2ce7808408a1584c7a1f1b6023cf8c33c0124210da569a3231f061db3fa59792c157f22828b518559c675d5562d5e8e7d8a7f85c49199

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            46e954d86948179a4e00ae1e5b0fe379

            SHA1

            a72901b4278faa0e973172f631006110768cd7a3

            SHA256

            cb28b803c626127ad4ac7f319dafea377c0016173c0c38bb2b99d73046bfd57e

            SHA512

            f7b01041b48fa9182c5cef95c90afad3a453c5ea1a442364b018ce0d57f91203bcc1fa1013b8378f0fe10a9c6c87eabcae008c7af919dfe97cde2a41711a3f2a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            46e954d86948179a4e00ae1e5b0fe379

            SHA1

            a72901b4278faa0e973172f631006110768cd7a3

            SHA256

            cb28b803c626127ad4ac7f319dafea377c0016173c0c38bb2b99d73046bfd57e

            SHA512

            f7b01041b48fa9182c5cef95c90afad3a453c5ea1a442364b018ce0d57f91203bcc1fa1013b8378f0fe10a9c6c87eabcae008c7af919dfe97cde2a41711a3f2a

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            46e954d86948179a4e00ae1e5b0fe379

            SHA1

            a72901b4278faa0e973172f631006110768cd7a3

            SHA256

            cb28b803c626127ad4ac7f319dafea377c0016173c0c38bb2b99d73046bfd57e

            SHA512

            f7b01041b48fa9182c5cef95c90afad3a453c5ea1a442364b018ce0d57f91203bcc1fa1013b8378f0fe10a9c6c87eabcae008c7af919dfe97cde2a41711a3f2a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f495594d27154342c8ff8a0aadc48c98

            SHA1

            5ade49264b048fa131be8b8118626294112abfc7

            SHA256

            5ede034130018570833a43df283af4fec0b7b81d61fd8e831eefcd883e0057d7

            SHA512

            ddacde5e14e2c4c8817b7894b9e19a40728de64356f245b8156200359626faa9dcd979d4e3cb55756bad25e3aaa0d35b9e15f7cf1a08ab512c1d0cedab01960f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f495594d27154342c8ff8a0aadc48c98

            SHA1

            5ade49264b048fa131be8b8118626294112abfc7

            SHA256

            5ede034130018570833a43df283af4fec0b7b81d61fd8e831eefcd883e0057d7

            SHA512

            ddacde5e14e2c4c8817b7894b9e19a40728de64356f245b8156200359626faa9dcd979d4e3cb55756bad25e3aaa0d35b9e15f7cf1a08ab512c1d0cedab01960f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8bd64fe8436bbf3a6967aa1e02fc2549

            SHA1

            953b1d7e35cb6aad89744567adebdc01f281a11c

            SHA256

            e0e2d5c7e9d7f3a0915a60b0c2fb0ce2c0b41bf90c5ba522c161f6a756c5b770

            SHA512

            822d4597173b3c56e0963c70c2b8de4ba4176f7d69ab825d544051fa9f1b85d12a6476224b588fa666d5323fd8de4066585388a00c5794e9da7fb13f19c20e5c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8bd64fe8436bbf3a6967aa1e02fc2549

            SHA1

            953b1d7e35cb6aad89744567adebdc01f281a11c

            SHA256

            e0e2d5c7e9d7f3a0915a60b0c2fb0ce2c0b41bf90c5ba522c161f6a756c5b770

            SHA512

            822d4597173b3c56e0963c70c2b8de4ba4176f7d69ab825d544051fa9f1b85d12a6476224b588fa666d5323fd8de4066585388a00c5794e9da7fb13f19c20e5c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8bd64fe8436bbf3a6967aa1e02fc2549

            SHA1

            953b1d7e35cb6aad89744567adebdc01f281a11c

            SHA256

            e0e2d5c7e9d7f3a0915a60b0c2fb0ce2c0b41bf90c5ba522c161f6a756c5b770

            SHA512

            822d4597173b3c56e0963c70c2b8de4ba4176f7d69ab825d544051fa9f1b85d12a6476224b588fa666d5323fd8de4066585388a00c5794e9da7fb13f19c20e5c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            246a4208a6c1d4f5fc2dc834ba23a890

            SHA1

            1b031795548eb71f609f72fca0acd78e54c5c3fe

            SHA256

            24990d4d5a0490a6e359f42640901c640ff84f4d787a9fd4e090d750a75b61ed

            SHA512

            563e3eb22c3bb02b030bbd2be9fc1e78c1965ca0f35dce61db917d1f952ca18a2dbc489999636b72e0f3b8f3ce08dcd5c1c9434d11ba84f32f7cb11b832854da

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            246a4208a6c1d4f5fc2dc834ba23a890

            SHA1

            1b031795548eb71f609f72fca0acd78e54c5c3fe

            SHA256

            24990d4d5a0490a6e359f42640901c640ff84f4d787a9fd4e090d750a75b61ed

            SHA512

            563e3eb22c3bb02b030bbd2be9fc1e78c1965ca0f35dce61db917d1f952ca18a2dbc489999636b72e0f3b8f3ce08dcd5c1c9434d11ba84f32f7cb11b832854da

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            246a4208a6c1d4f5fc2dc834ba23a890

            SHA1

            1b031795548eb71f609f72fca0acd78e54c5c3fe

            SHA256

            24990d4d5a0490a6e359f42640901c640ff84f4d787a9fd4e090d750a75b61ed

            SHA512

            563e3eb22c3bb02b030bbd2be9fc1e78c1965ca0f35dce61db917d1f952ca18a2dbc489999636b72e0f3b8f3ce08dcd5c1c9434d11ba84f32f7cb11b832854da

          • memory/560-141-0x0000000000000000-mapping.dmp

          • memory/1428-136-0x0000000000000000-mapping.dmp

          • memory/1792-165-0x0000000000000000-mapping.dmp

          • memory/2352-153-0x0000000000000000-mapping.dmp

          • memory/4148-140-0x0000000000000000-mapping.dmp

          • memory/4160-166-0x0000000000000000-mapping.dmp

          • memory/4212-147-0x0000000000000000-mapping.dmp

          • memory/4452-135-0x0000000000000000-mapping.dmp

          • memory/4764-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4764-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4964-142-0x0000000000000000-mapping.dmp

          • memory/5036-158-0x0000000000000000-mapping.dmp

          • memory/5096-159-0x0000000000000000-mapping.dmp