Analysis

  • max time kernel
    92s
  • max time network
    152s
  • 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 10:22

General

  • Target

    778aab7a527b62d240e4715832f6c29a0722e73e36d9dea9985f14e00df649ad.exe

  • Size

    601KB

  • MD5

    8f5bbb2b1635b1ba30ffd3da8a5cf725

  • SHA1

    ca939ac208545a7a9108346b6c0bb8c30da3bad7

  • SHA256

    778aab7a527b62d240e4715832f6c29a0722e73e36d9dea9985f14e00df649ad

  • SHA512

    85ea4bd28eaa7ba21cac8a640e1e728f75ac5bc37b66678bb85b00e9756d48e018908d3e8d7a41d46025ced3af40dfc208bd799ee0e83ec688248cf02f001e42

  • SSDEEP

    12288:QIny5DYTrNoM8G22mDJoFytvplo8LP53B+UF0bn5cE:uUTrWM42kltvvbB32e

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\778aab7a527b62d240e4715832f6c29a0722e73e36d9dea9985f14e00df649ad.exe
    "C:\Users\Admin\AppData\Local\Temp\778aab7a527b62d240e4715832f6c29a0722e73e36d9dea9985f14e00df649ad.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:5104
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1596
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4968
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4932
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4640
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4692
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2372
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:212
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2152
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:632
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3196
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1784
          • 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:5096
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1848

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsd3CB.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2fbb2ae083d134a6b2f93178e8cc072f

            SHA1

            4db2ae0782be3dce8038d2a907cb5f3af5608dec

            SHA256

            8df622160602d9914c6ada078d3d5e08b7683d1a9ee1568660195f056aa3eba7

            SHA512

            dbdd9f7fbd11f67d77bc66281d61aeb2e8338e3fe486481ff507c23a1014e11a0f7735c238e602380244d517fb1befeaff09a33c075f4a06460ad9522cf6d9cc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2fbb2ae083d134a6b2f93178e8cc072f

            SHA1

            4db2ae0782be3dce8038d2a907cb5f3af5608dec

            SHA256

            8df622160602d9914c6ada078d3d5e08b7683d1a9ee1568660195f056aa3eba7

            SHA512

            dbdd9f7fbd11f67d77bc66281d61aeb2e8338e3fe486481ff507c23a1014e11a0f7735c238e602380244d517fb1befeaff09a33c075f4a06460ad9522cf6d9cc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2fbb2ae083d134a6b2f93178e8cc072f

            SHA1

            4db2ae0782be3dce8038d2a907cb5f3af5608dec

            SHA256

            8df622160602d9914c6ada078d3d5e08b7683d1a9ee1568660195f056aa3eba7

            SHA512

            dbdd9f7fbd11f67d77bc66281d61aeb2e8338e3fe486481ff507c23a1014e11a0f7735c238e602380244d517fb1befeaff09a33c075f4a06460ad9522cf6d9cc

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            2fbb2ae083d134a6b2f93178e8cc072f

            SHA1

            4db2ae0782be3dce8038d2a907cb5f3af5608dec

            SHA256

            8df622160602d9914c6ada078d3d5e08b7683d1a9ee1568660195f056aa3eba7

            SHA512

            dbdd9f7fbd11f67d77bc66281d61aeb2e8338e3fe486481ff507c23a1014e11a0f7735c238e602380244d517fb1befeaff09a33c075f4a06460ad9522cf6d9cc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8c9f45205726d7f72e5160c19a0474b2

            SHA1

            7b3ae5f036442c1e6cd63bad3ece7e88edd2d6a2

            SHA256

            29714b5bc580ff944c333cec895dad30e52d558b759bffd72b0d8d4ef9f09385

            SHA512

            989a8afb6795a9ccde879ef9c14cead34f728d6d878f2dca364ebdfd83cac64c1bc7e9d84a42c61933044fee6f54e8d8c6087ed17b9ffa8830d4557a84972dfc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8c9f45205726d7f72e5160c19a0474b2

            SHA1

            7b3ae5f036442c1e6cd63bad3ece7e88edd2d6a2

            SHA256

            29714b5bc580ff944c333cec895dad30e52d558b759bffd72b0d8d4ef9f09385

            SHA512

            989a8afb6795a9ccde879ef9c14cead34f728d6d878f2dca364ebdfd83cac64c1bc7e9d84a42c61933044fee6f54e8d8c6087ed17b9ffa8830d4557a84972dfc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            8c9f45205726d7f72e5160c19a0474b2

            SHA1

            7b3ae5f036442c1e6cd63bad3ece7e88edd2d6a2

            SHA256

            29714b5bc580ff944c333cec895dad30e52d558b759bffd72b0d8d4ef9f09385

            SHA512

            989a8afb6795a9ccde879ef9c14cead34f728d6d878f2dca364ebdfd83cac64c1bc7e9d84a42c61933044fee6f54e8d8c6087ed17b9ffa8830d4557a84972dfc

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d09a1a4068f7a7a2009bd9c22c6122d2

            SHA1

            8567fe0a9f6c6feb180a3118f2c4672cda650419

            SHA256

            3b6169667402118a9c6cb8b9cafcce2090f37bc2faac259907a9fc9a902234d1

            SHA512

            4dbb89c498966cd7a4d96a691ba634bbbc0efa9a3bd673fa581b12c4313d3cf35a0d725961416f094f175e8c0077d147ce600ff15462f123bf91c22ea3557ba5

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            d09a1a4068f7a7a2009bd9c22c6122d2

            SHA1

            8567fe0a9f6c6feb180a3118f2c4672cda650419

            SHA256

            3b6169667402118a9c6cb8b9cafcce2090f37bc2faac259907a9fc9a902234d1

            SHA512

            4dbb89c498966cd7a4d96a691ba634bbbc0efa9a3bd673fa581b12c4313d3cf35a0d725961416f094f175e8c0077d147ce600ff15462f123bf91c22ea3557ba5

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e6b5adf447a529e0d0dbb28eeaacfb30

            SHA1

            3d59bc0072478e62d6a852f12e7a4d5d7f0b1c8b

            SHA256

            daa7d25b2889852c628f5369d5ea7e979f96af2319e463f1c190cd4c9e75e624

            SHA512

            e9cb659c12d3eb73e949d8c0c8ea459b097574091d0d95edeb2a4d2f66b515858b522dce29439f40618e69fd272d2e6d02f020e38464e3e10bdb920a522428cb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e6b5adf447a529e0d0dbb28eeaacfb30

            SHA1

            3d59bc0072478e62d6a852f12e7a4d5d7f0b1c8b

            SHA256

            daa7d25b2889852c628f5369d5ea7e979f96af2319e463f1c190cd4c9e75e624

            SHA512

            e9cb659c12d3eb73e949d8c0c8ea459b097574091d0d95edeb2a4d2f66b515858b522dce29439f40618e69fd272d2e6d02f020e38464e3e10bdb920a522428cb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e6b5adf447a529e0d0dbb28eeaacfb30

            SHA1

            3d59bc0072478e62d6a852f12e7a4d5d7f0b1c8b

            SHA256

            daa7d25b2889852c628f5369d5ea7e979f96af2319e463f1c190cd4c9e75e624

            SHA512

            e9cb659c12d3eb73e949d8c0c8ea459b097574091d0d95edeb2a4d2f66b515858b522dce29439f40618e69fd272d2e6d02f020e38464e3e10bdb920a522428cb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            598de7c2c983daac533f0e5f554f5761

            SHA1

            490d86a8765c6ba3c8691a368a2912d35821b71e

            SHA256

            fdeb8b9b3fc164655bee9c923a76152ec8a41c60d82fb6e5459dfeec4287eccd

            SHA512

            e998f961130e6f92aa5d14ec3ce02e9b82421a299d84b20ae9e0b82e10b59d5245839585ffff1032e71757f032ef143be4b8049a4f2486da65fd84a9f6cd675d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            598de7c2c983daac533f0e5f554f5761

            SHA1

            490d86a8765c6ba3c8691a368a2912d35821b71e

            SHA256

            fdeb8b9b3fc164655bee9c923a76152ec8a41c60d82fb6e5459dfeec4287eccd

            SHA512

            e998f961130e6f92aa5d14ec3ce02e9b82421a299d84b20ae9e0b82e10b59d5245839585ffff1032e71757f032ef143be4b8049a4f2486da65fd84a9f6cd675d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            598de7c2c983daac533f0e5f554f5761

            SHA1

            490d86a8765c6ba3c8691a368a2912d35821b71e

            SHA256

            fdeb8b9b3fc164655bee9c923a76152ec8a41c60d82fb6e5459dfeec4287eccd

            SHA512

            e998f961130e6f92aa5d14ec3ce02e9b82421a299d84b20ae9e0b82e10b59d5245839585ffff1032e71757f032ef143be4b8049a4f2486da65fd84a9f6cd675d

          • memory/212-153-0x0000000000000000-mapping.dmp

          • memory/632-159-0x0000000000000000-mapping.dmp

          • memory/1596-136-0x0000000000000000-mapping.dmp

          • memory/1784-166-0x0000000000000000-mapping.dmp

          • memory/2152-158-0x0000000000000000-mapping.dmp

          • memory/2372-147-0x0000000000000000-mapping.dmp

          • memory/3196-165-0x0000000000000000-mapping.dmp

          • memory/4640-141-0x0000000000000000-mapping.dmp

          • memory/4692-142-0x0000000000000000-mapping.dmp

          • memory/4932-140-0x0000000000000000-mapping.dmp

          • memory/4968-137-0x0000000000000000-mapping.dmp

          • memory/5104-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5104-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/5104-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB