Analysis

  • max time kernel
    133s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:52

General

  • Target

    d1e1d53c0c98e637c4b0762ed7d8a4e0c398c2d0815b8eff7b5b3c17b3cf9fa8.exe

  • Size

    446KB

  • MD5

    6eae3280729656b291c538e97b7a7962

  • SHA1

    12c43c06e1f6c3ce1e6ad90fdd5cf819bedc4ff4

  • SHA256

    d1e1d53c0c98e637c4b0762ed7d8a4e0c398c2d0815b8eff7b5b3c17b3cf9fa8

  • SHA512

    a0b2629623b20557eb04287e425148eae16fe6ef5ef958c019bc4ff85e8e77db7e10e2a694a33c328c7ff490ded3831cb2101757acd0491642741d652b2acb42

  • SSDEEP

    12288:nqhTjWTUbCjoNq5Z8QFrMRkVGZq8XQimijCKJjD:nkTMS4faQ2RktxLmCKJP

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\d1e1d53c0c98e637c4b0762ed7d8a4e0c398c2d0815b8eff7b5b3c17b3cf9fa8.exe
    "C:\Users\Admin\AppData\Local\Temp\d1e1d53c0c98e637c4b0762ed7d8a4e0c398c2d0815b8eff7b5b3c17b3cf9fa8.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:4972
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1344
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4108
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4060
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1280
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:852
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1392
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4724
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3488
          • 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:4040
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:408
          • 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:4284
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3284

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsx82C3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bea90c3602e10ce06430d2c349ade471

            SHA1

            96eab120fc7c5f028193934ddc2fa40a33f8a815

            SHA256

            82c013a9d0573cee4e1f1cde34780bc1815e21a495be26c537236fa91926c5fc

            SHA512

            9a9a023bd17c60a1aad28f2c08a913198291bad9af7c46614b0d8bc8104e29d72107f5331d726b82b052beb2aa36a8c57dcaff239f266cbb5d1c4c288b683674

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bea90c3602e10ce06430d2c349ade471

            SHA1

            96eab120fc7c5f028193934ddc2fa40a33f8a815

            SHA256

            82c013a9d0573cee4e1f1cde34780bc1815e21a495be26c537236fa91926c5fc

            SHA512

            9a9a023bd17c60a1aad28f2c08a913198291bad9af7c46614b0d8bc8104e29d72107f5331d726b82b052beb2aa36a8c57dcaff239f266cbb5d1c4c288b683674

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bea90c3602e10ce06430d2c349ade471

            SHA1

            96eab120fc7c5f028193934ddc2fa40a33f8a815

            SHA256

            82c013a9d0573cee4e1f1cde34780bc1815e21a495be26c537236fa91926c5fc

            SHA512

            9a9a023bd17c60a1aad28f2c08a913198291bad9af7c46614b0d8bc8104e29d72107f5331d726b82b052beb2aa36a8c57dcaff239f266cbb5d1c4c288b683674

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bea90c3602e10ce06430d2c349ade471

            SHA1

            96eab120fc7c5f028193934ddc2fa40a33f8a815

            SHA256

            82c013a9d0573cee4e1f1cde34780bc1815e21a495be26c537236fa91926c5fc

            SHA512

            9a9a023bd17c60a1aad28f2c08a913198291bad9af7c46614b0d8bc8104e29d72107f5331d726b82b052beb2aa36a8c57dcaff239f266cbb5d1c4c288b683674

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a817050221f874ba5cad897f89e521a0

            SHA1

            b91f0a5909ff1233fd76c12bab11816c9fd3a729

            SHA256

            80716905dfc501d0542e782e4bfa2aa5b47723c2ff23ca680f89b085067380ac

            SHA512

            8bc380ec506c19e7c427be39c33cde069f71c93abde3823b2fd36d28be764aee4d86716eabede7dd6d9d1b8b4aa45a92b074f8ff69e8042ea7dc03a12de12e50

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a817050221f874ba5cad897f89e521a0

            SHA1

            b91f0a5909ff1233fd76c12bab11816c9fd3a729

            SHA256

            80716905dfc501d0542e782e4bfa2aa5b47723c2ff23ca680f89b085067380ac

            SHA512

            8bc380ec506c19e7c427be39c33cde069f71c93abde3823b2fd36d28be764aee4d86716eabede7dd6d9d1b8b4aa45a92b074f8ff69e8042ea7dc03a12de12e50

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a817050221f874ba5cad897f89e521a0

            SHA1

            b91f0a5909ff1233fd76c12bab11816c9fd3a729

            SHA256

            80716905dfc501d0542e782e4bfa2aa5b47723c2ff23ca680f89b085067380ac

            SHA512

            8bc380ec506c19e7c427be39c33cde069f71c93abde3823b2fd36d28be764aee4d86716eabede7dd6d9d1b8b4aa45a92b074f8ff69e8042ea7dc03a12de12e50

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fe07836d9ae426b39c3043871585c113

            SHA1

            14d031c8dcbd70768ed91485e98bf4c27ae8a2a3

            SHA256

            7a453e3fe488d69f5cf209c514831cdb3bc0e73a6e77d48e240a5416495f0b3d

            SHA512

            d22e176e711758a76fa2ef9414f380dd67a10ae1f4dda5e1f4d8ba89b91d37ca173cac2aa86a805b500c96ac911786517c47a3c9119ea0d8deae0341cee68ca1

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fe07836d9ae426b39c3043871585c113

            SHA1

            14d031c8dcbd70768ed91485e98bf4c27ae8a2a3

            SHA256

            7a453e3fe488d69f5cf209c514831cdb3bc0e73a6e77d48e240a5416495f0b3d

            SHA512

            d22e176e711758a76fa2ef9414f380dd67a10ae1f4dda5e1f4d8ba89b91d37ca173cac2aa86a805b500c96ac911786517c47a3c9119ea0d8deae0341cee68ca1

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a4552075e44bc710dffbb8b82a0c22e8

            SHA1

            f231d7fe8b531a6441879058f789beddd0201598

            SHA256

            1bd01b79b60d04233c242e7b23bded14a378bbc2cf9cc70a933ac997a0d0a136

            SHA512

            cac1a87c94d4281e89e41ccf2bd05b99934b0ddc0ad14339627a97fca49d090a46120790cba59bcdf6c05da5da2596f18ea8eaefa27aebb30a76799a6ebc20a5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a4552075e44bc710dffbb8b82a0c22e8

            SHA1

            f231d7fe8b531a6441879058f789beddd0201598

            SHA256

            1bd01b79b60d04233c242e7b23bded14a378bbc2cf9cc70a933ac997a0d0a136

            SHA512

            cac1a87c94d4281e89e41ccf2bd05b99934b0ddc0ad14339627a97fca49d090a46120790cba59bcdf6c05da5da2596f18ea8eaefa27aebb30a76799a6ebc20a5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            a4552075e44bc710dffbb8b82a0c22e8

            SHA1

            f231d7fe8b531a6441879058f789beddd0201598

            SHA256

            1bd01b79b60d04233c242e7b23bded14a378bbc2cf9cc70a933ac997a0d0a136

            SHA512

            cac1a87c94d4281e89e41ccf2bd05b99934b0ddc0ad14339627a97fca49d090a46120790cba59bcdf6c05da5da2596f18ea8eaefa27aebb30a76799a6ebc20a5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            532e01cf18b647e256dcefc68be9d44e

            SHA1

            1ead48fe410c411525a9c8c817fb2acd076e15f4

            SHA256

            0a4cf03bf6faa98ab64af4056727ef489d69cb7b0f140c94953e688f8e37ce2f

            SHA512

            4317c8c8751dec251797c9b7b04b1eced3c6d35424edc75c247d19f41f927cb78da0a33b63e952a0979a7e8bd332dfb368440d5a0c5da70ea80673ef02f20c82

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            532e01cf18b647e256dcefc68be9d44e

            SHA1

            1ead48fe410c411525a9c8c817fb2acd076e15f4

            SHA256

            0a4cf03bf6faa98ab64af4056727ef489d69cb7b0f140c94953e688f8e37ce2f

            SHA512

            4317c8c8751dec251797c9b7b04b1eced3c6d35424edc75c247d19f41f927cb78da0a33b63e952a0979a7e8bd332dfb368440d5a0c5da70ea80673ef02f20c82

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            532e01cf18b647e256dcefc68be9d44e

            SHA1

            1ead48fe410c411525a9c8c817fb2acd076e15f4

            SHA256

            0a4cf03bf6faa98ab64af4056727ef489d69cb7b0f140c94953e688f8e37ce2f

            SHA512

            4317c8c8751dec251797c9b7b04b1eced3c6d35424edc75c247d19f41f927cb78da0a33b63e952a0979a7e8bd332dfb368440d5a0c5da70ea80673ef02f20c82

          • memory/408-165-0x0000000000000000-mapping.dmp

          • memory/852-141-0x0000000000000000-mapping.dmp

          • memory/1280-140-0x0000000000000000-mapping.dmp

          • memory/1344-135-0x0000000000000000-mapping.dmp

          • memory/1392-146-0x0000000000000000-mapping.dmp

          • memory/3488-157-0x0000000000000000-mapping.dmp

          • memory/4040-164-0x0000000000000000-mapping.dmp

          • memory/4060-139-0x0000000000000000-mapping.dmp

          • memory/4072-158-0x0000000000000000-mapping.dmp

          • memory/4108-136-0x0000000000000000-mapping.dmp

          • memory/4724-152-0x0000000000000000-mapping.dmp