Analysis

  • max time kernel
    153s
  • max time network
    180s
  • 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 10:50

General

  • Target

    e6a9fa75b049a55661755ee2e6200277d41e715d3fc1f37a43ae2771e4d8b685.exe

  • Size

    445KB

  • MD5

    2968d3567a946cc711e9d7882bd3a95c

  • SHA1

    af7ff079820854d598016a433b9a198f90bedc2d

  • SHA256

    e6a9fa75b049a55661755ee2e6200277d41e715d3fc1f37a43ae2771e4d8b685

  • SHA512

    b95cc0d1c0ce88b1734d5cbee09aaa75cefd47e15070da7ed8d12ac74ce7bbc6ad102d3708d6c25824db7afe2f442e104ef84dbefea678047a657d4dfd4c4d64

  • SSDEEP

    12288:g5mqBxURtY5rVlJ8cs5yczvYrcKgpMlmUd0WBz+I2K5r:g5x7U/YVJhczvYYtumUWIj

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\e6a9fa75b049a55661755ee2e6200277d41e715d3fc1f37a43ae2771e4d8b685.exe
    "C:\Users\Admin\AppData\Local\Temp\e6a9fa75b049a55661755ee2e6200277d41e715d3fc1f37a43ae2771e4d8b685.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:384
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4408
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4980
      • 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:2352
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1340
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1748
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4756
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4688
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3716
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4420
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2112
          • 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:644
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2216

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsyDD28.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b861ed2e95eecaa1f0a980c1a487ef5

            SHA1

            5e13f1ffd97986486582fd1021bec376ee845a2c

            SHA256

            a6bfcabb42bfcb8e2e2f105175e513baa9182669d1cba02fe6993d68a8b391f9

            SHA512

            2de33bf3c2e5c0fb55d667c26398b268f2c2463e4ae939e17570becc01665f3eebc433af189265010d21a0ba79ee3d3a3ad0b56dc6fccea68e173ef5acef2117

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b861ed2e95eecaa1f0a980c1a487ef5

            SHA1

            5e13f1ffd97986486582fd1021bec376ee845a2c

            SHA256

            a6bfcabb42bfcb8e2e2f105175e513baa9182669d1cba02fe6993d68a8b391f9

            SHA512

            2de33bf3c2e5c0fb55d667c26398b268f2c2463e4ae939e17570becc01665f3eebc433af189265010d21a0ba79ee3d3a3ad0b56dc6fccea68e173ef5acef2117

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b861ed2e95eecaa1f0a980c1a487ef5

            SHA1

            5e13f1ffd97986486582fd1021bec376ee845a2c

            SHA256

            a6bfcabb42bfcb8e2e2f105175e513baa9182669d1cba02fe6993d68a8b391f9

            SHA512

            2de33bf3c2e5c0fb55d667c26398b268f2c2463e4ae939e17570becc01665f3eebc433af189265010d21a0ba79ee3d3a3ad0b56dc6fccea68e173ef5acef2117

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9b861ed2e95eecaa1f0a980c1a487ef5

            SHA1

            5e13f1ffd97986486582fd1021bec376ee845a2c

            SHA256

            a6bfcabb42bfcb8e2e2f105175e513baa9182669d1cba02fe6993d68a8b391f9

            SHA512

            2de33bf3c2e5c0fb55d667c26398b268f2c2463e4ae939e17570becc01665f3eebc433af189265010d21a0ba79ee3d3a3ad0b56dc6fccea68e173ef5acef2117

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            46d67551a41d103b235338228cf4207f

            SHA1

            6d003459c48b6e8418d234d97496311c47d3e8e7

            SHA256

            8dc1fe4f4facf1b86eddb30df8f200c52d0ba8fe87ba5e110ce1959a161e10c3

            SHA512

            b80881b02b374c6e0e9d81215ea4d5403b43332ae37546d0904f8f922d856e305b71b0a6771ab54d156eb6bcab67b03f7aafda649f8c03cf99e50600e365d602

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            46d67551a41d103b235338228cf4207f

            SHA1

            6d003459c48b6e8418d234d97496311c47d3e8e7

            SHA256

            8dc1fe4f4facf1b86eddb30df8f200c52d0ba8fe87ba5e110ce1959a161e10c3

            SHA512

            b80881b02b374c6e0e9d81215ea4d5403b43332ae37546d0904f8f922d856e305b71b0a6771ab54d156eb6bcab67b03f7aafda649f8c03cf99e50600e365d602

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            46d67551a41d103b235338228cf4207f

            SHA1

            6d003459c48b6e8418d234d97496311c47d3e8e7

            SHA256

            8dc1fe4f4facf1b86eddb30df8f200c52d0ba8fe87ba5e110ce1959a161e10c3

            SHA512

            b80881b02b374c6e0e9d81215ea4d5403b43332ae37546d0904f8f922d856e305b71b0a6771ab54d156eb6bcab67b03f7aafda649f8c03cf99e50600e365d602

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            50a68de024296cc218c3c89353edebd7

            SHA1

            1bb41ada25f7bcfd0e821aea9a32871d747a39b7

            SHA256

            4f8f467ff0d6d880d8f4401bea781405ddea3a64fb5e534fa71e826a07ea13fb

            SHA512

            1c9b0bb82f023c4fad0ebfb86f3319e9dd081e97dcfe6dba67c6f8c2c1afd2c87f534e61e2e937cf698c86e1ccf2dc74075dcc41c6aa561eb67efd15f1122d1e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            50a68de024296cc218c3c89353edebd7

            SHA1

            1bb41ada25f7bcfd0e821aea9a32871d747a39b7

            SHA256

            4f8f467ff0d6d880d8f4401bea781405ddea3a64fb5e534fa71e826a07ea13fb

            SHA512

            1c9b0bb82f023c4fad0ebfb86f3319e9dd081e97dcfe6dba67c6f8c2c1afd2c87f534e61e2e937cf698c86e1ccf2dc74075dcc41c6aa561eb67efd15f1122d1e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f0ef7b58100965b7b040f96a8137024b

            SHA1

            422c1163fcab9f4ce77dccc8bf9c11c8d44d16a3

            SHA256

            3dfd2651c67fb8182b60dc1180400aeff0d16b025436a7297131a084593593e8

            SHA512

            a62054404bfcdeb811dcc40786fc52cd46313cf7b64998bbae88dc3b70fd760e30964f630aaa6fb89622e757aab9a6e15af0242f7826c89ab74ce6502f0f917d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f0ef7b58100965b7b040f96a8137024b

            SHA1

            422c1163fcab9f4ce77dccc8bf9c11c8d44d16a3

            SHA256

            3dfd2651c67fb8182b60dc1180400aeff0d16b025436a7297131a084593593e8

            SHA512

            a62054404bfcdeb811dcc40786fc52cd46313cf7b64998bbae88dc3b70fd760e30964f630aaa6fb89622e757aab9a6e15af0242f7826c89ab74ce6502f0f917d

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            f0ef7b58100965b7b040f96a8137024b

            SHA1

            422c1163fcab9f4ce77dccc8bf9c11c8d44d16a3

            SHA256

            3dfd2651c67fb8182b60dc1180400aeff0d16b025436a7297131a084593593e8

            SHA512

            a62054404bfcdeb811dcc40786fc52cd46313cf7b64998bbae88dc3b70fd760e30964f630aaa6fb89622e757aab9a6e15af0242f7826c89ab74ce6502f0f917d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f2f47ab2e78b5fb8ee035c57f829cea4

            SHA1

            72bc9a99fa1cdb0a7dc4d7c5e846fb92373dbcdd

            SHA256

            b2f9249ba4c532f997a594e62663d2b14b1dfbf2914f58b0937d7028abef03f0

            SHA512

            697ab488e18004cc766a21ecafe00bdcaac87ed0aa9076605ed51600fd6fce011b447fddfcd691cdf44c18638c5e49ace03ffbf5317f305f01e58f9ff44f96a4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f2f47ab2e78b5fb8ee035c57f829cea4

            SHA1

            72bc9a99fa1cdb0a7dc4d7c5e846fb92373dbcdd

            SHA256

            b2f9249ba4c532f997a594e62663d2b14b1dfbf2914f58b0937d7028abef03f0

            SHA512

            697ab488e18004cc766a21ecafe00bdcaac87ed0aa9076605ed51600fd6fce011b447fddfcd691cdf44c18638c5e49ace03ffbf5317f305f01e58f9ff44f96a4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f2f47ab2e78b5fb8ee035c57f829cea4

            SHA1

            72bc9a99fa1cdb0a7dc4d7c5e846fb92373dbcdd

            SHA256

            b2f9249ba4c532f997a594e62663d2b14b1dfbf2914f58b0937d7028abef03f0

            SHA512

            697ab488e18004cc766a21ecafe00bdcaac87ed0aa9076605ed51600fd6fce011b447fddfcd691cdf44c18638c5e49ace03ffbf5317f305f01e58f9ff44f96a4

          • memory/1340-141-0x0000000000000000-mapping.dmp

          • memory/1748-146-0x0000000000000000-mapping.dmp

          • memory/2112-165-0x0000000000000000-mapping.dmp

          • memory/2352-140-0x0000000000000000-mapping.dmp

          • memory/3716-158-0x0000000000000000-mapping.dmp

          • memory/4408-135-0x0000000000000000-mapping.dmp

          • memory/4420-164-0x0000000000000000-mapping.dmp

          • memory/4688-157-0x0000000000000000-mapping.dmp

          • memory/4756-152-0x0000000000000000-mapping.dmp

          • memory/4932-139-0x0000000000000000-mapping.dmp

          • memory/4980-136-0x0000000000000000-mapping.dmp