Analysis

  • max time kernel
    35s
  • max time network
    43s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:54

General

  • Target

    864b895ee5a4e108c44654d789517cd8004552bcee544d942454919a6053adf6.exe

  • Size

    445KB

  • MD5

    94eca4a3e618051023ff2230d020dd9c

  • SHA1

    64132119966d3dd58e08a6a0be0e259fc52613cf

  • SHA256

    864b895ee5a4e108c44654d789517cd8004552bcee544d942454919a6053adf6

  • SHA512

    39e4c76f347dc340a1c640f81b4856348d106be2ed8a76dc27d4c82c690c0720f288ee6c611e63e941d816eafb77a43c28865c7203348d8b0582246ecf3c0780

  • SSDEEP

    12288:QYYKhjjmU8g7B1Gcr3L3XNAzXD6tF4+6kMiSUl:QYnQtRALqGO+3t

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\864b895ee5a4e108c44654d789517cd8004552bcee544d942454919a6053adf6.exe
    "C:\Users\Admin\AppData\Local\Temp\864b895ee5a4e108c44654d789517cd8004552bcee544d942454919a6053adf6.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:1388
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1324
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:760
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1940
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:964
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1740
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1708
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1180
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1544
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1580
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1608
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1640
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1320
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1676

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            242db1111daac169a94e3ab29692f0bb

            SHA1

            4d904bd0538324270916de2ce4352fe8851d69c5

            SHA256

            737dd3fb6057b5df9396397a9360c3cb185ba74fb0969282204aef3a833e74b2

            SHA512

            c6dbf97868a2b7bbed6acac94425e2722bd9aeb6b29b1f61214422ca14111876e5edd84b8cc02102ce30e9df752fcc6e0ec8d2a62d7c9a600edec599b5774931

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a224a43602ad5ed4bc9b4d59ac0a03f3

            SHA1

            d7ac2f5aa8c55d99f2481113a426cb481ecb6598

            SHA256

            38e06ca6a5c29471d44b1bed3e4a920d58342075fdebacf071c30771ecd4ef26

            SHA512

            ca74ab22ab729001c2bad5fd923bb8ebc98bced2db473e1d4e59e68379f3f105a2003b7ba95d4d634b81d109977caecaec9776018ff017afb2a93d1a53b74b4e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f2951526f6c49e64b372cf4fa02feac4

            SHA1

            5e6ded1c35408736b39fdd2018229f51dc64d942

            SHA256

            c10286eb8676e81dc514df1792ca101a26dc2c378da5f82460af1f52dd7aa976

            SHA512

            4d00f94f9a72896884599e1ea58f216ededcc6ab0359beec265114de4ee5abf017298ac857c9beec26531d6e086c8e1908f74c902203a14c501170d3867727e4

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            26e0761ad8fa0a693a21ef6b70ae296c

            SHA1

            6de8488e30e9103813ee1fbfad5f2aa52ea12a4d

            SHA256

            5384930395c1371daba29c1084ae944ef7936b2d9d407c723f0349536d949348

            SHA512

            aa3c9557a731b7655653bbfcd67a87e1dc1ac4d8d65b3c1edd9715e703ca1ef21e8d9c55f38a2054927055a0e0bb5577df386194761e65491e740641e68c92f9

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            26e0761ad8fa0a693a21ef6b70ae296c

            SHA1

            6de8488e30e9103813ee1fbfad5f2aa52ea12a4d

            SHA256

            5384930395c1371daba29c1084ae944ef7936b2d9d407c723f0349536d949348

            SHA512

            aa3c9557a731b7655653bbfcd67a87e1dc1ac4d8d65b3c1edd9715e703ca1ef21e8d9c55f38a2054927055a0e0bb5577df386194761e65491e740641e68c92f9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1e2d31a6e5d8dc2cd13a86a7a22569ae

            SHA1

            c803deb1de22e2aec904511b7d0f0753ad35f764

            SHA256

            6dbc3863380add8522e079b6b6acaa6ef5a3e7073c5950fffb0a2826a2b33bd1

            SHA512

            679ab1954942f173d97f314e6966b88030baf7a68d9c49d4ddf0d7525edfdd157bed3d7dfd04eaba2eea82b6039918ea2bdbbe4e8f3da6eef35756a86ca4f18e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1e2d31a6e5d8dc2cd13a86a7a22569ae

            SHA1

            c803deb1de22e2aec904511b7d0f0753ad35f764

            SHA256

            6dbc3863380add8522e079b6b6acaa6ef5a3e7073c5950fffb0a2826a2b33bd1

            SHA512

            679ab1954942f173d97f314e6966b88030baf7a68d9c49d4ddf0d7525edfdd157bed3d7dfd04eaba2eea82b6039918ea2bdbbe4e8f3da6eef35756a86ca4f18e

          • \Users\Admin\AppData\Local\Temp\nsd4BA3.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd4BA3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd4BA3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd4BA3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd4BA3.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            242db1111daac169a94e3ab29692f0bb

            SHA1

            4d904bd0538324270916de2ce4352fe8851d69c5

            SHA256

            737dd3fb6057b5df9396397a9360c3cb185ba74fb0969282204aef3a833e74b2

            SHA512

            c6dbf97868a2b7bbed6acac94425e2722bd9aeb6b29b1f61214422ca14111876e5edd84b8cc02102ce30e9df752fcc6e0ec8d2a62d7c9a600edec599b5774931

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            242db1111daac169a94e3ab29692f0bb

            SHA1

            4d904bd0538324270916de2ce4352fe8851d69c5

            SHA256

            737dd3fb6057b5df9396397a9360c3cb185ba74fb0969282204aef3a833e74b2

            SHA512

            c6dbf97868a2b7bbed6acac94425e2722bd9aeb6b29b1f61214422ca14111876e5edd84b8cc02102ce30e9df752fcc6e0ec8d2a62d7c9a600edec599b5774931

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            242db1111daac169a94e3ab29692f0bb

            SHA1

            4d904bd0538324270916de2ce4352fe8851d69c5

            SHA256

            737dd3fb6057b5df9396397a9360c3cb185ba74fb0969282204aef3a833e74b2

            SHA512

            c6dbf97868a2b7bbed6acac94425e2722bd9aeb6b29b1f61214422ca14111876e5edd84b8cc02102ce30e9df752fcc6e0ec8d2a62d7c9a600edec599b5774931

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a224a43602ad5ed4bc9b4d59ac0a03f3

            SHA1

            d7ac2f5aa8c55d99f2481113a426cb481ecb6598

            SHA256

            38e06ca6a5c29471d44b1bed3e4a920d58342075fdebacf071c30771ecd4ef26

            SHA512

            ca74ab22ab729001c2bad5fd923bb8ebc98bced2db473e1d4e59e68379f3f105a2003b7ba95d4d634b81d109977caecaec9776018ff017afb2a93d1a53b74b4e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            a224a43602ad5ed4bc9b4d59ac0a03f3

            SHA1

            d7ac2f5aa8c55d99f2481113a426cb481ecb6598

            SHA256

            38e06ca6a5c29471d44b1bed3e4a920d58342075fdebacf071c30771ecd4ef26

            SHA512

            ca74ab22ab729001c2bad5fd923bb8ebc98bced2db473e1d4e59e68379f3f105a2003b7ba95d4d634b81d109977caecaec9776018ff017afb2a93d1a53b74b4e

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f2951526f6c49e64b372cf4fa02feac4

            SHA1

            5e6ded1c35408736b39fdd2018229f51dc64d942

            SHA256

            c10286eb8676e81dc514df1792ca101a26dc2c378da5f82460af1f52dd7aa976

            SHA512

            4d00f94f9a72896884599e1ea58f216ededcc6ab0359beec265114de4ee5abf017298ac857c9beec26531d6e086c8e1908f74c902203a14c501170d3867727e4

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            26e0761ad8fa0a693a21ef6b70ae296c

            SHA1

            6de8488e30e9103813ee1fbfad5f2aa52ea12a4d

            SHA256

            5384930395c1371daba29c1084ae944ef7936b2d9d407c723f0349536d949348

            SHA512

            aa3c9557a731b7655653bbfcd67a87e1dc1ac4d8d65b3c1edd9715e703ca1ef21e8d9c55f38a2054927055a0e0bb5577df386194761e65491e740641e68c92f9

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            1e2d31a6e5d8dc2cd13a86a7a22569ae

            SHA1

            c803deb1de22e2aec904511b7d0f0753ad35f764

            SHA256

            6dbc3863380add8522e079b6b6acaa6ef5a3e7073c5950fffb0a2826a2b33bd1

            SHA512

            679ab1954942f173d97f314e6966b88030baf7a68d9c49d4ddf0d7525edfdd157bed3d7dfd04eaba2eea82b6039918ea2bdbbe4e8f3da6eef35756a86ca4f18e

          • memory/760-58-0x0000000000000000-mapping.dmp

          • memory/964-61-0x0000000000000000-mapping.dmp

          • memory/1180-75-0x0000000000000000-mapping.dmp

          • memory/1324-57-0x0000000000000000-mapping.dmp

          • memory/1388-54-0x00000000768A1000-0x00000000768A3000-memory.dmp

            Filesize

            8KB

          • memory/1544-79-0x0000000000000000-mapping.dmp

          • memory/1580-80-0x0000000000000000-mapping.dmp

          • memory/1608-85-0x0000000000000000-mapping.dmp

          • memory/1640-86-0x0000000000000000-mapping.dmp

          • memory/1708-69-0x0000000000000000-mapping.dmp

          • memory/1740-63-0x0000000000000000-mapping.dmp

          • memory/1940-60-0x0000000000000000-mapping.dmp