Analysis

  • max time kernel
    99s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    7788e2b7c7142e2202f45986f9e2c6b1b6a5a4bee05c8c510754d96d00469a1a.exe

  • Size

    601KB

  • MD5

    63285ddfff6a2e3f1e4f84a4fb8c34b5

  • SHA1

    9458c5aadcf04c8d77b389844db18ba21a835bb1

  • SHA256

    7788e2b7c7142e2202f45986f9e2c6b1b6a5a4bee05c8c510754d96d00469a1a

  • SHA512

    7667132244d5320db778e140674f3b2de2f28f66d2178cb5525428a5049a0e63a2d16766d8932e2257feb6c7a316af0f91490d5bee5852ca055c36132fb01945

  • SSDEEP

    12288:xIny5DYTTDUXIP3cljzrli8dGn21Hh0tjU060PtxsZASE8v/gpQIsF:NUT843chrldz1BMjU068txyEcoVs

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7788e2b7c7142e2202f45986f9e2c6b1b6a5a4bee05c8c510754d96d00469a1a.exe
    "C:\Users\Admin\AppData\Local\Temp\7788e2b7c7142e2202f45986f9e2c6b1b6a5a4bee05c8c510754d96d00469a1a.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:884
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:788
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1488
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1320
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1972
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:912
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:908
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1256
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1852
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1664
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:680
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:316
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1600

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f9831063b0ddd0757923fb30dd0b28ef

            SHA1

            95a8bb63ca043eb33cf4c7d464d21745714db064

            SHA256

            bcfc981183dddba6b657e10db693ec5afed28a2a0d3a43649945017738b8f253

            SHA512

            b38daee59b148e45d5df65d03763b3344f5b42d7d3c8165f012e52ce25bf7f743b4329192a4605aa1af6365f8293361cd8d187fd02521c29622b701865ce4456

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            17ab4309e453b1288c62b8fb4f716d99

            SHA1

            eb39283fb113ec6d2e500b1aac906909411dbbb2

            SHA256

            47d1721b976ec0f95ffdcce7b2986e53b3942c5d9f50aa241200326e74005a58

            SHA512

            8c54f02e41be1a3c6e150c016da40f7be9a4d3fe594876abc3e169feb13330d7b3867862866a1234e62b2b96b3f5da0aa8568c359718e3e3ab7f6190c36713fb

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8259c7a20ebce28438cf9792d129db26

            SHA1

            512fa5ce5dd0b721cc84cb1f0be7e63d01be3750

            SHA256

            bca22db48a7be923fa29a27f6f7b98e2376b4a774587e33842ad7141b6c94c7a

            SHA512

            1f4b051d7fbbeed28633a34f1ca2d6f6b7fbbdfdb8e262e037d576791f3ff008d132a3020a0845d717dd2c99e008c32a1b5f19765690f67a392bac55d9fbb15a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7f2fa6bd2f49c056d9dd97cd93d4a67e

            SHA1

            5982a83b1711a59bc2a3568cb293a2adeb82d8eb

            SHA256

            ddf07fb3c3158c58a6138bcad6ef74d71519526104a06131a7692b9a2c515d66

            SHA512

            665c6da21d80158abe822ed707311a4d21bf679ade2599a7924929913b94747740bb9fa0063ddb4ae191d2beeb9b402b888a76da8ff258f5febd251cb0fed996

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7f2fa6bd2f49c056d9dd97cd93d4a67e

            SHA1

            5982a83b1711a59bc2a3568cb293a2adeb82d8eb

            SHA256

            ddf07fb3c3158c58a6138bcad6ef74d71519526104a06131a7692b9a2c515d66

            SHA512

            665c6da21d80158abe822ed707311a4d21bf679ade2599a7924929913b94747740bb9fa0063ddb4ae191d2beeb9b402b888a76da8ff258f5febd251cb0fed996

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e2f340af55cf1a23795d05880342355e

            SHA1

            87026070c73508890557a296a182bb6101e88d1d

            SHA256

            e2281c72e2c0dbdf71bb08cdec2d1c3121692ce2b64b05b1d281a18fbd340232

            SHA512

            043c06cd1cfdc73a888326e1b6a845d0218438042a7a7b046d83eb872c809cc5174bef508c1b8887e6597bbc8adf79a4d8868970e849c24f52e2e4271a28b6da

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e2f340af55cf1a23795d05880342355e

            SHA1

            87026070c73508890557a296a182bb6101e88d1d

            SHA256

            e2281c72e2c0dbdf71bb08cdec2d1c3121692ce2b64b05b1d281a18fbd340232

            SHA512

            043c06cd1cfdc73a888326e1b6a845d0218438042a7a7b046d83eb872c809cc5174bef508c1b8887e6597bbc8adf79a4d8868970e849c24f52e2e4271a28b6da

          • \Users\Admin\AppData\Local\Temp\nseE2C4.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseE2C4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseE2C4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseE2C4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseE2C4.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f9831063b0ddd0757923fb30dd0b28ef

            SHA1

            95a8bb63ca043eb33cf4c7d464d21745714db064

            SHA256

            bcfc981183dddba6b657e10db693ec5afed28a2a0d3a43649945017738b8f253

            SHA512

            b38daee59b148e45d5df65d03763b3344f5b42d7d3c8165f012e52ce25bf7f743b4329192a4605aa1af6365f8293361cd8d187fd02521c29622b701865ce4456

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f9831063b0ddd0757923fb30dd0b28ef

            SHA1

            95a8bb63ca043eb33cf4c7d464d21745714db064

            SHA256

            bcfc981183dddba6b657e10db693ec5afed28a2a0d3a43649945017738b8f253

            SHA512

            b38daee59b148e45d5df65d03763b3344f5b42d7d3c8165f012e52ce25bf7f743b4329192a4605aa1af6365f8293361cd8d187fd02521c29622b701865ce4456

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            f9831063b0ddd0757923fb30dd0b28ef

            SHA1

            95a8bb63ca043eb33cf4c7d464d21745714db064

            SHA256

            bcfc981183dddba6b657e10db693ec5afed28a2a0d3a43649945017738b8f253

            SHA512

            b38daee59b148e45d5df65d03763b3344f5b42d7d3c8165f012e52ce25bf7f743b4329192a4605aa1af6365f8293361cd8d187fd02521c29622b701865ce4456

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            17ab4309e453b1288c62b8fb4f716d99

            SHA1

            eb39283fb113ec6d2e500b1aac906909411dbbb2

            SHA256

            47d1721b976ec0f95ffdcce7b2986e53b3942c5d9f50aa241200326e74005a58

            SHA512

            8c54f02e41be1a3c6e150c016da40f7be9a4d3fe594876abc3e169feb13330d7b3867862866a1234e62b2b96b3f5da0aa8568c359718e3e3ab7f6190c36713fb

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            17ab4309e453b1288c62b8fb4f716d99

            SHA1

            eb39283fb113ec6d2e500b1aac906909411dbbb2

            SHA256

            47d1721b976ec0f95ffdcce7b2986e53b3942c5d9f50aa241200326e74005a58

            SHA512

            8c54f02e41be1a3c6e150c016da40f7be9a4d3fe594876abc3e169feb13330d7b3867862866a1234e62b2b96b3f5da0aa8568c359718e3e3ab7f6190c36713fb

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8259c7a20ebce28438cf9792d129db26

            SHA1

            512fa5ce5dd0b721cc84cb1f0be7e63d01be3750

            SHA256

            bca22db48a7be923fa29a27f6f7b98e2376b4a774587e33842ad7141b6c94c7a

            SHA512

            1f4b051d7fbbeed28633a34f1ca2d6f6b7fbbdfdb8e262e037d576791f3ff008d132a3020a0845d717dd2c99e008c32a1b5f19765690f67a392bac55d9fbb15a

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7f2fa6bd2f49c056d9dd97cd93d4a67e

            SHA1

            5982a83b1711a59bc2a3568cb293a2adeb82d8eb

            SHA256

            ddf07fb3c3158c58a6138bcad6ef74d71519526104a06131a7692b9a2c515d66

            SHA512

            665c6da21d80158abe822ed707311a4d21bf679ade2599a7924929913b94747740bb9fa0063ddb4ae191d2beeb9b402b888a76da8ff258f5febd251cb0fed996

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e2f340af55cf1a23795d05880342355e

            SHA1

            87026070c73508890557a296a182bb6101e88d1d

            SHA256

            e2281c72e2c0dbdf71bb08cdec2d1c3121692ce2b64b05b1d281a18fbd340232

            SHA512

            043c06cd1cfdc73a888326e1b6a845d0218438042a7a7b046d83eb872c809cc5174bef508c1b8887e6597bbc8adf79a4d8868970e849c24f52e2e4271a28b6da

          • memory/316-88-0x0000000000000000-mapping.dmp

          • memory/680-87-0x0000000000000000-mapping.dmp

          • memory/788-57-0x0000000000000000-mapping.dmp

          • memory/884-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/884-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/884-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/884-54-0x0000000075B11000-0x0000000075B13000-memory.dmp

            Filesize

            8KB

          • memory/908-71-0x0000000000000000-mapping.dmp

          • memory/912-64-0x0000000000000000-mapping.dmp

          • memory/1256-77-0x0000000000000000-mapping.dmp

          • memory/1320-61-0x0000000000000000-mapping.dmp

          • memory/1488-58-0x0000000000000000-mapping.dmp

          • memory/1664-82-0x0000000000000000-mapping.dmp

          • memory/1852-81-0x0000000000000000-mapping.dmp

          • memory/1972-62-0x0000000000000000-mapping.dmp