Analysis

  • max time kernel
    178s
  • max time network
    190s
  • 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 10:07

General

  • Target

    f4969be519005f4613d89bada1d2aa7a197155b43cf2bc1e19fc6f4909241ac6.exe

  • Size

    602KB

  • MD5

    b26416aa6b11536738cd468bb3702ced

  • SHA1

    3ea2562cdeb5a3cc8351ba6273b685592cb675cd

  • SHA256

    f4969be519005f4613d89bada1d2aa7a197155b43cf2bc1e19fc6f4909241ac6

  • SHA512

    36009a27d984ba6f1340272937ef57c9098e175ed8c84e22ad3daee64fe7c25fbb3f2eb85c26476a4f2f5946d091641eb40150b18b3161db097a96976fa2af0f

  • SSDEEP

    12288:fIny5DYTxVbVAt5K1pc0XOgtZvLTwgg9G:HUTxVbet5K1rlDTm

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\f4969be519005f4613d89bada1d2aa7a197155b43cf2bc1e19fc6f4909241ac6.exe
    "C:\Users\Admin\AppData\Local\Temp\f4969be519005f4613d89bada1d2aa7a197155b43cf2bc1e19fc6f4909241ac6.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:752
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4000
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4924
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4204
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2840
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4492
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1360
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2160
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2792
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3104
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2952
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1356
          • 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:2384
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1420

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz1F61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ff628a46c32bef1e76dc61f7474ae1c1

            SHA1

            c3400277c69041f0f48626b8071c984403027b32

            SHA256

            7cd33340f4a10c789cfa2ade23918769c3426f9e79908f24de4eb3cefe122b49

            SHA512

            3a3e2fa48dd698fbb4797e5276fb5f3da3aee158927b1f6f65260a246ed4defa6db2ce44a09e324d8f36c11fa63e5037b1b977baf7d431186bffdfbd8d6a163e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ff628a46c32bef1e76dc61f7474ae1c1

            SHA1

            c3400277c69041f0f48626b8071c984403027b32

            SHA256

            7cd33340f4a10c789cfa2ade23918769c3426f9e79908f24de4eb3cefe122b49

            SHA512

            3a3e2fa48dd698fbb4797e5276fb5f3da3aee158927b1f6f65260a246ed4defa6db2ce44a09e324d8f36c11fa63e5037b1b977baf7d431186bffdfbd8d6a163e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ff628a46c32bef1e76dc61f7474ae1c1

            SHA1

            c3400277c69041f0f48626b8071c984403027b32

            SHA256

            7cd33340f4a10c789cfa2ade23918769c3426f9e79908f24de4eb3cefe122b49

            SHA512

            3a3e2fa48dd698fbb4797e5276fb5f3da3aee158927b1f6f65260a246ed4defa6db2ce44a09e324d8f36c11fa63e5037b1b977baf7d431186bffdfbd8d6a163e

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            ff628a46c32bef1e76dc61f7474ae1c1

            SHA1

            c3400277c69041f0f48626b8071c984403027b32

            SHA256

            7cd33340f4a10c789cfa2ade23918769c3426f9e79908f24de4eb3cefe122b49

            SHA512

            3a3e2fa48dd698fbb4797e5276fb5f3da3aee158927b1f6f65260a246ed4defa6db2ce44a09e324d8f36c11fa63e5037b1b977baf7d431186bffdfbd8d6a163e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            6a1aa6d6578a596ecbb449d1c77d1d11

            SHA1

            3e6c68a48aa38082dfe338063bd2660cfb907020

            SHA256

            8e3384159fd2af4882cd9b8b063097fb24be1a926cd1a00f3fe057295659702d

            SHA512

            a5fc96f2db23be95b2f3d692cd9182b7c22285c479c9958c383e93fa7e504e3b3869afd18e9cadb306da85bec6fb870a7fb21bc531e2a6fb5e11d20ed9607ae7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            6a1aa6d6578a596ecbb449d1c77d1d11

            SHA1

            3e6c68a48aa38082dfe338063bd2660cfb907020

            SHA256

            8e3384159fd2af4882cd9b8b063097fb24be1a926cd1a00f3fe057295659702d

            SHA512

            a5fc96f2db23be95b2f3d692cd9182b7c22285c479c9958c383e93fa7e504e3b3869afd18e9cadb306da85bec6fb870a7fb21bc531e2a6fb5e11d20ed9607ae7

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            6a1aa6d6578a596ecbb449d1c77d1d11

            SHA1

            3e6c68a48aa38082dfe338063bd2660cfb907020

            SHA256

            8e3384159fd2af4882cd9b8b063097fb24be1a926cd1a00f3fe057295659702d

            SHA512

            a5fc96f2db23be95b2f3d692cd9182b7c22285c479c9958c383e93fa7e504e3b3869afd18e9cadb306da85bec6fb870a7fb21bc531e2a6fb5e11d20ed9607ae7

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1c3026fc1f6e5017286b5061dc3068aa

            SHA1

            e2825720904698113f85d428386f7b9bc3c4195a

            SHA256

            c295fa9e64cf78cacbe89cb40e182873ddf19896c2c8d83e8877c1ecbbc28b99

            SHA512

            cb15459dad0365504b7d634fa28c54dd387680e08405c854314ebb287f6a4df59d27479479b693f2b5339b2d95982d5fba15bf26caab9a50ae91ef707f169f14

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            1c3026fc1f6e5017286b5061dc3068aa

            SHA1

            e2825720904698113f85d428386f7b9bc3c4195a

            SHA256

            c295fa9e64cf78cacbe89cb40e182873ddf19896c2c8d83e8877c1ecbbc28b99

            SHA512

            cb15459dad0365504b7d634fa28c54dd387680e08405c854314ebb287f6a4df59d27479479b693f2b5339b2d95982d5fba15bf26caab9a50ae91ef707f169f14

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            163694b3078f9d7657c7d8d1e7ae1380

            SHA1

            abc25dfe12ab172451ebc0394ad90c25bc78f88d

            SHA256

            557945c9ee1737401ae63046caaf3630a0dc982d22b61fa3278086960610f310

            SHA512

            310c9ea5ce91efeb06c0b0337c612b5db3c0b761b72c96524a8acf8c176c496dfeecd46d7c3195c624d4186326c2fac6657d607bf5075f9922a7615d53523e7b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            163694b3078f9d7657c7d8d1e7ae1380

            SHA1

            abc25dfe12ab172451ebc0394ad90c25bc78f88d

            SHA256

            557945c9ee1737401ae63046caaf3630a0dc982d22b61fa3278086960610f310

            SHA512

            310c9ea5ce91efeb06c0b0337c612b5db3c0b761b72c96524a8acf8c176c496dfeecd46d7c3195c624d4186326c2fac6657d607bf5075f9922a7615d53523e7b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            163694b3078f9d7657c7d8d1e7ae1380

            SHA1

            abc25dfe12ab172451ebc0394ad90c25bc78f88d

            SHA256

            557945c9ee1737401ae63046caaf3630a0dc982d22b61fa3278086960610f310

            SHA512

            310c9ea5ce91efeb06c0b0337c612b5db3c0b761b72c96524a8acf8c176c496dfeecd46d7c3195c624d4186326c2fac6657d607bf5075f9922a7615d53523e7b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b5d08f50de9ce2bb4001876e29ed2b5a

            SHA1

            c4faf33b3a03ca9f2ac4387ecaac16d9a431cfed

            SHA256

            90511c4bac78b84f67737fdf63d63c6dbc2138cbb97d70b7ea0c0d7caca8a875

            SHA512

            8de945cba4b3594746cbe2d170b81ab2937e6b375829f3d4524d4284058626f9b7bcce4cef391b08bed4a5bb3abb6e3a4d42fdf57da85837d842771eb4d97e13

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b5d08f50de9ce2bb4001876e29ed2b5a

            SHA1

            c4faf33b3a03ca9f2ac4387ecaac16d9a431cfed

            SHA256

            90511c4bac78b84f67737fdf63d63c6dbc2138cbb97d70b7ea0c0d7caca8a875

            SHA512

            8de945cba4b3594746cbe2d170b81ab2937e6b375829f3d4524d4284058626f9b7bcce4cef391b08bed4a5bb3abb6e3a4d42fdf57da85837d842771eb4d97e13

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b5d08f50de9ce2bb4001876e29ed2b5a

            SHA1

            c4faf33b3a03ca9f2ac4387ecaac16d9a431cfed

            SHA256

            90511c4bac78b84f67737fdf63d63c6dbc2138cbb97d70b7ea0c0d7caca8a875

            SHA512

            8de945cba4b3594746cbe2d170b81ab2937e6b375829f3d4524d4284058626f9b7bcce4cef391b08bed4a5bb3abb6e3a4d42fdf57da85837d842771eb4d97e13

          • memory/752-137-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/752-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1356-166-0x0000000000000000-mapping.dmp

          • memory/1360-147-0x0000000000000000-mapping.dmp

          • memory/2160-153-0x0000000000000000-mapping.dmp

          • memory/2792-158-0x0000000000000000-mapping.dmp

          • memory/2840-141-0x0000000000000000-mapping.dmp

          • memory/2952-165-0x0000000000000000-mapping.dmp

          • memory/3104-159-0x0000000000000000-mapping.dmp

          • memory/4000-135-0x0000000000000000-mapping.dmp

          • memory/4204-140-0x0000000000000000-mapping.dmp

          • memory/4492-142-0x0000000000000000-mapping.dmp

          • memory/4924-136-0x0000000000000000-mapping.dmp