Analysis

  • max time kernel
    183s
  • max time network
    193s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:12

General

  • Target

    c7fba7a5a3af5ddc4ed3070079545f74fd5082f422a4b9f32ab30818459d5a3c.exe

  • Size

    603KB

  • MD5

    cab9e037e457075abdf1200066cb3d37

  • SHA1

    7f9b29ed807800d469fe096179f731122448feb4

  • SHA256

    c7fba7a5a3af5ddc4ed3070079545f74fd5082f422a4b9f32ab30818459d5a3c

  • SHA512

    225a5ad4ef69652152bf0b1b038a63204f51536f29fbe6ec5387e4c48f53b11b25ba5f6e201b183cc875198b0c5662a748300ab9bc51570cadb2ed0dc162a100

  • SSDEEP

    12288:JIny5DYTfIIvltcT53C/7SYV0dQgmMf0ngZr6NK2PJq:lUTfHvluFy/7SgXgA2rSK2

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\c7fba7a5a3af5ddc4ed3070079545f74fd5082f422a4b9f32ab30818459d5a3c.exe
    "C:\Users\Admin\AppData\Local\Temp\c7fba7a5a3af5ddc4ed3070079545f74fd5082f422a4b9f32ab30818459d5a3c.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:4144
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5040
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2400
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2440
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1704
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1252
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3692
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:868
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4020
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:728
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3944
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3636
          • 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:1040
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2832

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsw18AA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            af80b290b657e7e7b5508b6582e8dafc

            SHA1

            519463f56822d3953803579fcb8365629270e637

            SHA256

            b822e1b38d58ceefeaaca41d424cfdf49b047d7ca61984a824846e24ea563f77

            SHA512

            1cda136d6c07764dd8b115593bfc81082d69062792b0e0ee642c921784099e529778825b04022a34fff198910adf0e57b17f314dfc2ac92b39434cb27072fede

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            af80b290b657e7e7b5508b6582e8dafc

            SHA1

            519463f56822d3953803579fcb8365629270e637

            SHA256

            b822e1b38d58ceefeaaca41d424cfdf49b047d7ca61984a824846e24ea563f77

            SHA512

            1cda136d6c07764dd8b115593bfc81082d69062792b0e0ee642c921784099e529778825b04022a34fff198910adf0e57b17f314dfc2ac92b39434cb27072fede

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            af80b290b657e7e7b5508b6582e8dafc

            SHA1

            519463f56822d3953803579fcb8365629270e637

            SHA256

            b822e1b38d58ceefeaaca41d424cfdf49b047d7ca61984a824846e24ea563f77

            SHA512

            1cda136d6c07764dd8b115593bfc81082d69062792b0e0ee642c921784099e529778825b04022a34fff198910adf0e57b17f314dfc2ac92b39434cb27072fede

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            af80b290b657e7e7b5508b6582e8dafc

            SHA1

            519463f56822d3953803579fcb8365629270e637

            SHA256

            b822e1b38d58ceefeaaca41d424cfdf49b047d7ca61984a824846e24ea563f77

            SHA512

            1cda136d6c07764dd8b115593bfc81082d69062792b0e0ee642c921784099e529778825b04022a34fff198910adf0e57b17f314dfc2ac92b39434cb27072fede

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            65d8b51a59ab47fbe7683b1c6e1cba5d

            SHA1

            161e7f18968071dcad628fd92278a538950bef21

            SHA256

            d2bc06db32068e0ad95c802f9896dac0ccd2920190bc975d97f1c75eb8adde48

            SHA512

            dba5934b36cc1d9fcef4d60d87c2fdfac28a26a304b0d766ff6e633d75b162e3d15eb0deb4599d90d48227882d8fc9d85392a6441826ec2df78ad00c529e13c5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            65d8b51a59ab47fbe7683b1c6e1cba5d

            SHA1

            161e7f18968071dcad628fd92278a538950bef21

            SHA256

            d2bc06db32068e0ad95c802f9896dac0ccd2920190bc975d97f1c75eb8adde48

            SHA512

            dba5934b36cc1d9fcef4d60d87c2fdfac28a26a304b0d766ff6e633d75b162e3d15eb0deb4599d90d48227882d8fc9d85392a6441826ec2df78ad00c529e13c5

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            65d8b51a59ab47fbe7683b1c6e1cba5d

            SHA1

            161e7f18968071dcad628fd92278a538950bef21

            SHA256

            d2bc06db32068e0ad95c802f9896dac0ccd2920190bc975d97f1c75eb8adde48

            SHA512

            dba5934b36cc1d9fcef4d60d87c2fdfac28a26a304b0d766ff6e633d75b162e3d15eb0deb4599d90d48227882d8fc9d85392a6441826ec2df78ad00c529e13c5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5288e6ba08197e6d8d3174a1bca40e71

            SHA1

            a969151abbf8e552490a6a52e717d6d89ee2d78a

            SHA256

            2a9771355d5f02812d28ca3faf66bd1dd657f98afc96d769da7e4fbce44bd97a

            SHA512

            3148d8a3a643aaff8c93153a3f53d02ea79cc7369951fd5444e86f9c36426a873a9cd7a79e039310e926345410ef8764283f38799e1ec5aa1ad50de298f5cb84

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            5288e6ba08197e6d8d3174a1bca40e71

            SHA1

            a969151abbf8e552490a6a52e717d6d89ee2d78a

            SHA256

            2a9771355d5f02812d28ca3faf66bd1dd657f98afc96d769da7e4fbce44bd97a

            SHA512

            3148d8a3a643aaff8c93153a3f53d02ea79cc7369951fd5444e86f9c36426a873a9cd7a79e039310e926345410ef8764283f38799e1ec5aa1ad50de298f5cb84

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d5c59a44e71bd3d7cbc7f8eb0da4a272

            SHA1

            a226125c9aef8e6572b4e89929864492c9e0ce56

            SHA256

            47f38db206e61ccf13636b0e0f0eda2a50112f3f2d0622ee4f2bbeae0daa091e

            SHA512

            58d0545ea0a98307e4b7b4dae403d84aaab8ed8c4e8d61a06f6012babaad20d545264fe43891c2a32a7cc216679fe2e0554de341ee786a7d59016630c7cb8620

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d5c59a44e71bd3d7cbc7f8eb0da4a272

            SHA1

            a226125c9aef8e6572b4e89929864492c9e0ce56

            SHA256

            47f38db206e61ccf13636b0e0f0eda2a50112f3f2d0622ee4f2bbeae0daa091e

            SHA512

            58d0545ea0a98307e4b7b4dae403d84aaab8ed8c4e8d61a06f6012babaad20d545264fe43891c2a32a7cc216679fe2e0554de341ee786a7d59016630c7cb8620

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            d5c59a44e71bd3d7cbc7f8eb0da4a272

            SHA1

            a226125c9aef8e6572b4e89929864492c9e0ce56

            SHA256

            47f38db206e61ccf13636b0e0f0eda2a50112f3f2d0622ee4f2bbeae0daa091e

            SHA512

            58d0545ea0a98307e4b7b4dae403d84aaab8ed8c4e8d61a06f6012babaad20d545264fe43891c2a32a7cc216679fe2e0554de341ee786a7d59016630c7cb8620

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            712be8eb17ac346792191513b60f894d

            SHA1

            0f61d4d1278829f95706d2917d6a07c9c9b9a30d

            SHA256

            0b7e5632e743aadf5c2e65b37711c9496e07f0e2ec2a6825df0302569692bbbe

            SHA512

            4d029fdaecd2f8829e59c34e2411994977149f35638742ac02060afc2f5e0ff337b809a78f912263bd6e03ede8a67a4f8f8667db706c1835936ead324ed8f01c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            712be8eb17ac346792191513b60f894d

            SHA1

            0f61d4d1278829f95706d2917d6a07c9c9b9a30d

            SHA256

            0b7e5632e743aadf5c2e65b37711c9496e07f0e2ec2a6825df0302569692bbbe

            SHA512

            4d029fdaecd2f8829e59c34e2411994977149f35638742ac02060afc2f5e0ff337b809a78f912263bd6e03ede8a67a4f8f8667db706c1835936ead324ed8f01c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            712be8eb17ac346792191513b60f894d

            SHA1

            0f61d4d1278829f95706d2917d6a07c9c9b9a30d

            SHA256

            0b7e5632e743aadf5c2e65b37711c9496e07f0e2ec2a6825df0302569692bbbe

            SHA512

            4d029fdaecd2f8829e59c34e2411994977149f35638742ac02060afc2f5e0ff337b809a78f912263bd6e03ede8a67a4f8f8667db706c1835936ead324ed8f01c

          • memory/728-159-0x0000000000000000-mapping.dmp

          • memory/868-153-0x0000000000000000-mapping.dmp

          • memory/1252-142-0x0000000000000000-mapping.dmp

          • memory/1704-141-0x0000000000000000-mapping.dmp

          • memory/2400-137-0x0000000000000000-mapping.dmp

          • memory/2440-140-0x0000000000000000-mapping.dmp

          • memory/3636-166-0x0000000000000000-mapping.dmp

          • memory/3692-147-0x0000000000000000-mapping.dmp

          • memory/3944-165-0x0000000000000000-mapping.dmp

          • memory/4020-158-0x0000000000000000-mapping.dmp

          • memory/4144-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4144-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5040-136-0x0000000000000000-mapping.dmp