Analysis

  • max time kernel
    136s
  • max time network
    163s
  • 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 10:51

General

  • Target

    e03c3af586d81d3fb26af74a9e9d61dea1baef2c20ee260a339a63cdf483574e.exe

  • Size

    447KB

  • MD5

    079975ac2c80e7f0a09f55508f36c3cd

  • SHA1

    ee803e0994df8358cabc7438f75b46716e476b39

  • SHA256

    e03c3af586d81d3fb26af74a9e9d61dea1baef2c20ee260a339a63cdf483574e

  • SHA512

    78fd7cd6a868dc7e36f5f9d873944898a85508dd84a3e5c0c2f5ec079458de354002a757b0337e1da0adb5e46f92e519fbce792a1ccc3efabf4b8c9b490d8f6a

  • SSDEEP

    6144:XzfhRd+nzLDQRjDxyjM2P5lZc/hGWp4oCzuKHQOkUrGUthHOC9+TBDYLdlMHlBJF:FsPDQh+XZCh16HHQythj9gXtIQT

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\e03c3af586d81d3fb26af74a9e9d61dea1baef2c20ee260a339a63cdf483574e.exe
    "C:\Users\Admin\AppData\Local\Temp\e03c3af586d81d3fb26af74a9e9d61dea1baef2c20ee260a339a63cdf483574e.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:3768
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1140
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:3740
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2748
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:308
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4040
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4800
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4316
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4212
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4492
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4016
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:3232
          • 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:1192
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:864

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsy9DAE.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ec023c519f1ceeab7ebb62bc013712

            SHA1

            b1e64cd8bcaac209a02e3e245936aab9ae4ef434

            SHA256

            a6ad98759814c8ff68c838d2ac842317135c8103fa59bd01ad5e877801ba6797

            SHA512

            8700a9585b60703fb6b513f8997101e521c7453edb6aeddd529b011a0fb81dd8491041834b93d1943fbca878d2934609043a2657ab8b8671baa8a6b17588d273

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ec023c519f1ceeab7ebb62bc013712

            SHA1

            b1e64cd8bcaac209a02e3e245936aab9ae4ef434

            SHA256

            a6ad98759814c8ff68c838d2ac842317135c8103fa59bd01ad5e877801ba6797

            SHA512

            8700a9585b60703fb6b513f8997101e521c7453edb6aeddd529b011a0fb81dd8491041834b93d1943fbca878d2934609043a2657ab8b8671baa8a6b17588d273

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ec023c519f1ceeab7ebb62bc013712

            SHA1

            b1e64cd8bcaac209a02e3e245936aab9ae4ef434

            SHA256

            a6ad98759814c8ff68c838d2ac842317135c8103fa59bd01ad5e877801ba6797

            SHA512

            8700a9585b60703fb6b513f8997101e521c7453edb6aeddd529b011a0fb81dd8491041834b93d1943fbca878d2934609043a2657ab8b8671baa8a6b17588d273

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            05ec023c519f1ceeab7ebb62bc013712

            SHA1

            b1e64cd8bcaac209a02e3e245936aab9ae4ef434

            SHA256

            a6ad98759814c8ff68c838d2ac842317135c8103fa59bd01ad5e877801ba6797

            SHA512

            8700a9585b60703fb6b513f8997101e521c7453edb6aeddd529b011a0fb81dd8491041834b93d1943fbca878d2934609043a2657ab8b8671baa8a6b17588d273

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a6041f62b488b1a1e28eb78b63f26857

            SHA1

            acc5a8f4ef0f77e48fe0df6041e941c70509091e

            SHA256

            98358d22ea51c70f8809cd7c84377bf5de62865620fd128df33a1e183dc9a03a

            SHA512

            963745f5584734b81819ba5ec159b4ac7473df76143a25290f3111c63feb796bbc7e965146fbe1d9f046d7ed5db843cc9c80c35e07c9e06cb23e2e1ada05aca9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a6041f62b488b1a1e28eb78b63f26857

            SHA1

            acc5a8f4ef0f77e48fe0df6041e941c70509091e

            SHA256

            98358d22ea51c70f8809cd7c84377bf5de62865620fd128df33a1e183dc9a03a

            SHA512

            963745f5584734b81819ba5ec159b4ac7473df76143a25290f3111c63feb796bbc7e965146fbe1d9f046d7ed5db843cc9c80c35e07c9e06cb23e2e1ada05aca9

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            a6041f62b488b1a1e28eb78b63f26857

            SHA1

            acc5a8f4ef0f77e48fe0df6041e941c70509091e

            SHA256

            98358d22ea51c70f8809cd7c84377bf5de62865620fd128df33a1e183dc9a03a

            SHA512

            963745f5584734b81819ba5ec159b4ac7473df76143a25290f3111c63feb796bbc7e965146fbe1d9f046d7ed5db843cc9c80c35e07c9e06cb23e2e1ada05aca9

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2c4db80feb0b86e7240ca897f350ab65

            SHA1

            5ebb46ce76ddccc5ba5092dc2ca48cee2dc2686e

            SHA256

            81822e4e7efcd77e37051288538124df903a2af2c782bf0fdb02216164b7b785

            SHA512

            62d4ed4386a0161ea6bd095a46ae5ae6941c445501c9b61c7b13fc3c2dee3d2da9c3b58a14ae62a3ff8e0ae54f1bc52a39fc82260070665fe709db419f7cdba3

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2c4db80feb0b86e7240ca897f350ab65

            SHA1

            5ebb46ce76ddccc5ba5092dc2ca48cee2dc2686e

            SHA256

            81822e4e7efcd77e37051288538124df903a2af2c782bf0fdb02216164b7b785

            SHA512

            62d4ed4386a0161ea6bd095a46ae5ae6941c445501c9b61c7b13fc3c2dee3d2da9c3b58a14ae62a3ff8e0ae54f1bc52a39fc82260070665fe709db419f7cdba3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            80b6076195ef0f40f25d2ec72d1d5ff1

            SHA1

            0a50ce533010eed75e3a527c15e5948bb2fde940

            SHA256

            b26cc4b7abc8729be4efbad8ce3641a665e8ebc1cd12a386a8beb139bb0a2599

            SHA512

            ca909d4b2817254db6c37a0b5d16f4f54c5e7e79cbae1132710968e482375d398b9be325058c0035ab4ccfb9f702f25730f63f0b31dde00c8fbe5a121adfab6f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            80b6076195ef0f40f25d2ec72d1d5ff1

            SHA1

            0a50ce533010eed75e3a527c15e5948bb2fde940

            SHA256

            b26cc4b7abc8729be4efbad8ce3641a665e8ebc1cd12a386a8beb139bb0a2599

            SHA512

            ca909d4b2817254db6c37a0b5d16f4f54c5e7e79cbae1132710968e482375d398b9be325058c0035ab4ccfb9f702f25730f63f0b31dde00c8fbe5a121adfab6f

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            80b6076195ef0f40f25d2ec72d1d5ff1

            SHA1

            0a50ce533010eed75e3a527c15e5948bb2fde940

            SHA256

            b26cc4b7abc8729be4efbad8ce3641a665e8ebc1cd12a386a8beb139bb0a2599

            SHA512

            ca909d4b2817254db6c37a0b5d16f4f54c5e7e79cbae1132710968e482375d398b9be325058c0035ab4ccfb9f702f25730f63f0b31dde00c8fbe5a121adfab6f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            0e440b6b5522aa95ea87954f4b1d16f9

            SHA1

            ec796ba3c94596624930291300ce906744b0631a

            SHA256

            fefa55f981c5a15e82e106d9abc99bbe883c7e25f4caef45a0ad178176c02809

            SHA512

            929c93023fc9e4e9907ee8999b55d591f9b969fd6e3a8adc749505a3ef2b5b9a9ddfa419f53482247ad32a2f7a4b53ec993c61687bd1e692f8104b4734524488

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            0e440b6b5522aa95ea87954f4b1d16f9

            SHA1

            ec796ba3c94596624930291300ce906744b0631a

            SHA256

            fefa55f981c5a15e82e106d9abc99bbe883c7e25f4caef45a0ad178176c02809

            SHA512

            929c93023fc9e4e9907ee8999b55d591f9b969fd6e3a8adc749505a3ef2b5b9a9ddfa419f53482247ad32a2f7a4b53ec993c61687bd1e692f8104b4734524488

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            0e440b6b5522aa95ea87954f4b1d16f9

            SHA1

            ec796ba3c94596624930291300ce906744b0631a

            SHA256

            fefa55f981c5a15e82e106d9abc99bbe883c7e25f4caef45a0ad178176c02809

            SHA512

            929c93023fc9e4e9907ee8999b55d591f9b969fd6e3a8adc749505a3ef2b5b9a9ddfa419f53482247ad32a2f7a4b53ec993c61687bd1e692f8104b4734524488

          • memory/308-140-0x0000000000000000-mapping.dmp

          • memory/1140-135-0x0000000000000000-mapping.dmp

          • memory/2748-139-0x0000000000000000-mapping.dmp

          • memory/3232-165-0x0000000000000000-mapping.dmp

          • memory/3740-136-0x0000000000000000-mapping.dmp

          • memory/4016-164-0x0000000000000000-mapping.dmp

          • memory/4040-141-0x0000000000000000-mapping.dmp

          • memory/4212-157-0x0000000000000000-mapping.dmp

          • memory/4316-152-0x0000000000000000-mapping.dmp

          • memory/4492-158-0x0000000000000000-mapping.dmp

          • memory/4800-146-0x0000000000000000-mapping.dmp