Analysis

  • max time kernel
    91s
  • 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 10:34

General

  • Target

    06a1c366bc4472c10092af74c330bd96fc6f36463730c97aacfa6763004ab48c.exe

  • Size

    603KB

  • MD5

    31da775ba9baf5c637d1a33a0db4f270

  • SHA1

    a46b08aace5025223753054d13350b6ad7a17a40

  • SHA256

    06a1c366bc4472c10092af74c330bd96fc6f36463730c97aacfa6763004ab48c

  • SHA512

    1c00d59a8244afed05d558223feb7ba1a5883f852a30d2965c3e26b48c35503bc7ca276b975f00b9a7f79a3155df707e162c526be2f6f31e7e628d293281e6e3

  • SSDEEP

    12288:9Iny5DYTMIHZF2iCCpZoO+iP4ZnnEyH4zTIMtrKpg3:pUTMYZF2ILoORPcjQT5rK+

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\06a1c366bc4472c10092af74c330bd96fc6f36463730c97aacfa6763004ab48c.exe
    "C:\Users\Admin\AppData\Local\Temp\06a1c366bc4472c10092af74c330bd96fc6f36463730c97aacfa6763004ab48c.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:5080
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:5108
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4652
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4156
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:524
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2520
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1828
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3628
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1732
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3428
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4272
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4444
          • 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:4060
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:3108

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsoEC0C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9d330ad806e9572a3cbb805aca36b3b

            SHA1

            a49efe9357303c3e444822be6b09985b794b6825

            SHA256

            de8bfebfe775b29dce6c586e29ca6cbe67ccec83a31cb3a9c1757499e68eb120

            SHA512

            ae0bf173c870a7841eefc279066b4ec4577a51dc98ee53bb9a5bc8afd6f009d31aa346305b49410c1fd744e07dacbac272bad6be65eb7663282a6ee637cb8728

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9d330ad806e9572a3cbb805aca36b3b

            SHA1

            a49efe9357303c3e444822be6b09985b794b6825

            SHA256

            de8bfebfe775b29dce6c586e29ca6cbe67ccec83a31cb3a9c1757499e68eb120

            SHA512

            ae0bf173c870a7841eefc279066b4ec4577a51dc98ee53bb9a5bc8afd6f009d31aa346305b49410c1fd744e07dacbac272bad6be65eb7663282a6ee637cb8728

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9d330ad806e9572a3cbb805aca36b3b

            SHA1

            a49efe9357303c3e444822be6b09985b794b6825

            SHA256

            de8bfebfe775b29dce6c586e29ca6cbe67ccec83a31cb3a9c1757499e68eb120

            SHA512

            ae0bf173c870a7841eefc279066b4ec4577a51dc98ee53bb9a5bc8afd6f009d31aa346305b49410c1fd744e07dacbac272bad6be65eb7663282a6ee637cb8728

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            d9d330ad806e9572a3cbb805aca36b3b

            SHA1

            a49efe9357303c3e444822be6b09985b794b6825

            SHA256

            de8bfebfe775b29dce6c586e29ca6cbe67ccec83a31cb3a9c1757499e68eb120

            SHA512

            ae0bf173c870a7841eefc279066b4ec4577a51dc98ee53bb9a5bc8afd6f009d31aa346305b49410c1fd744e07dacbac272bad6be65eb7663282a6ee637cb8728

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f6e2bae7a2a34a561787824ab9849a5a

            SHA1

            09b2c02fd3129293c91bcf37ca84fa4ad1e1e07f

            SHA256

            127344f62a6c06808569e7d9ca715b7f9edfd9a03ecbb2de460a8ecbd383a3c8

            SHA512

            26bd5cb371f567a324df424dcd324c95c0d1285487b521e3b87fdab028272fc672845f7d7bcbcd8ad1c9b9f2cfa2ae4189a63c0b76b8a6b7f3eccda37c6f4cf2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f6e2bae7a2a34a561787824ab9849a5a

            SHA1

            09b2c02fd3129293c91bcf37ca84fa4ad1e1e07f

            SHA256

            127344f62a6c06808569e7d9ca715b7f9edfd9a03ecbb2de460a8ecbd383a3c8

            SHA512

            26bd5cb371f567a324df424dcd324c95c0d1285487b521e3b87fdab028272fc672845f7d7bcbcd8ad1c9b9f2cfa2ae4189a63c0b76b8a6b7f3eccda37c6f4cf2

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f6e2bae7a2a34a561787824ab9849a5a

            SHA1

            09b2c02fd3129293c91bcf37ca84fa4ad1e1e07f

            SHA256

            127344f62a6c06808569e7d9ca715b7f9edfd9a03ecbb2de460a8ecbd383a3c8

            SHA512

            26bd5cb371f567a324df424dcd324c95c0d1285487b521e3b87fdab028272fc672845f7d7bcbcd8ad1c9b9f2cfa2ae4189a63c0b76b8a6b7f3eccda37c6f4cf2

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d758d7ae5ab6a9626177d1e7c17a85bb

            SHA1

            6738eda89fbd34d7ae2466a51a8d2ca66a786b19

            SHA256

            7823add8447b3735abf9443d9261bedbcbaa2e1b3e67590851e1c13689a8cf87

            SHA512

            7a83c782d521291bfd039b6854813030a0dad096979d6e3b807d9af60339fd1c054b33212024a221b0af7e2272c64b8bd5c005e5c6272742e20cf0995bf51625

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d758d7ae5ab6a9626177d1e7c17a85bb

            SHA1

            6738eda89fbd34d7ae2466a51a8d2ca66a786b19

            SHA256

            7823add8447b3735abf9443d9261bedbcbaa2e1b3e67590851e1c13689a8cf87

            SHA512

            7a83c782d521291bfd039b6854813030a0dad096979d6e3b807d9af60339fd1c054b33212024a221b0af7e2272c64b8bd5c005e5c6272742e20cf0995bf51625

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b35c538f6f8389cc729cd053d8acb0dc

            SHA1

            2c9ca9c6f8cc99688758da81501763cb53ab6243

            SHA256

            92f53eddbee2ec599895ecfec4add3f5fe4875ef088ba46068ba1175c247a4be

            SHA512

            07d1d0cf3c01129e5dad2b5da63f05ba8b0ff6ced1b88f021371f6521916e964f27bba1411e0517cf6cb3d5d6b5005ab3cbde6cd792fb1ebfc111cf9d117c156

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b35c538f6f8389cc729cd053d8acb0dc

            SHA1

            2c9ca9c6f8cc99688758da81501763cb53ab6243

            SHA256

            92f53eddbee2ec599895ecfec4add3f5fe4875ef088ba46068ba1175c247a4be

            SHA512

            07d1d0cf3c01129e5dad2b5da63f05ba8b0ff6ced1b88f021371f6521916e964f27bba1411e0517cf6cb3d5d6b5005ab3cbde6cd792fb1ebfc111cf9d117c156

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b35c538f6f8389cc729cd053d8acb0dc

            SHA1

            2c9ca9c6f8cc99688758da81501763cb53ab6243

            SHA256

            92f53eddbee2ec599895ecfec4add3f5fe4875ef088ba46068ba1175c247a4be

            SHA512

            07d1d0cf3c01129e5dad2b5da63f05ba8b0ff6ced1b88f021371f6521916e964f27bba1411e0517cf6cb3d5d6b5005ab3cbde6cd792fb1ebfc111cf9d117c156

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f5f5d0b45d080c84ab4f5afe8e819dee

            SHA1

            12e1f480fec207229568f1e48bc52f5f2c56ba42

            SHA256

            ce90432cc666c23182dc1e60e1e8dbce7151eeb2400a26ea0e9b34df4e347beb

            SHA512

            5026b6b99e30f65ad8bc41c05b9d111d67365ce7b0819f8ea284cf91b764753e159c750a5a6710a7049bc911ed87be24d46c2780b49fcc5cf4c97572bbc44e2f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f5f5d0b45d080c84ab4f5afe8e819dee

            SHA1

            12e1f480fec207229568f1e48bc52f5f2c56ba42

            SHA256

            ce90432cc666c23182dc1e60e1e8dbce7151eeb2400a26ea0e9b34df4e347beb

            SHA512

            5026b6b99e30f65ad8bc41c05b9d111d67365ce7b0819f8ea284cf91b764753e159c750a5a6710a7049bc911ed87be24d46c2780b49fcc5cf4c97572bbc44e2f

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f5f5d0b45d080c84ab4f5afe8e819dee

            SHA1

            12e1f480fec207229568f1e48bc52f5f2c56ba42

            SHA256

            ce90432cc666c23182dc1e60e1e8dbce7151eeb2400a26ea0e9b34df4e347beb

            SHA512

            5026b6b99e30f65ad8bc41c05b9d111d67365ce7b0819f8ea284cf91b764753e159c750a5a6710a7049bc911ed87be24d46c2780b49fcc5cf4c97572bbc44e2f

          • memory/524-141-0x0000000000000000-mapping.dmp

          • memory/1732-158-0x0000000000000000-mapping.dmp

          • memory/1828-147-0x0000000000000000-mapping.dmp

          • memory/2520-142-0x0000000000000000-mapping.dmp

          • memory/3428-159-0x0000000000000000-mapping.dmp

          • memory/3628-153-0x0000000000000000-mapping.dmp

          • memory/4156-140-0x0000000000000000-mapping.dmp

          • memory/4272-165-0x0000000000000000-mapping.dmp

          • memory/4444-166-0x0000000000000000-mapping.dmp

          • memory/4652-137-0x0000000000000000-mapping.dmp

          • memory/5080-136-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5080-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5080-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5108-135-0x0000000000000000-mapping.dmp