Analysis

  • max time kernel
    204s
  • max time network
    211s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    24/11/2022, 05:41

General

  • Target

    4326365dca92b987e852582b03e2fae230491afc30ff7591e2200ab1b5e5e9a1.exe

  • Size

    601KB

  • MD5

    c1fb18d6d2c5a22be24f492e7ceb8f14

  • SHA1

    e67d4e8824f7ee99b05d11ce6b65101f7a4116f8

  • SHA256

    4326365dca92b987e852582b03e2fae230491afc30ff7591e2200ab1b5e5e9a1

  • SHA512

    972ecb8380e9a49eb64f1b0fca1c2168d2b1e804a979cac6fe699963964d4ba262621ef49d5e00d1549304677c13ae79f3004fc41859e1fc145a4675eca8391a

  • SSDEEP

    12288:iIny5DYTgn8Z1jy39rZ2tCqB0ipeYY2mSFN+p98ztCA0vFo:EUTji39d2tCIvYHyN+peAdo

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\4326365dca92b987e852582b03e2fae230491afc30ff7591e2200ab1b5e5e9a1.exe
    "C:\Users\Admin\AppData\Local\Temp\4326365dca92b987e852582b03e2fae230491afc30ff7591e2200ab1b5e5e9a1.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:3396
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3800
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:216
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2240
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3760
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3644
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2428
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2264
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4236
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4600
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1096
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2092
          • 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:2884
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:676

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsl56BD.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            816ddae898ed64f8da69df6d9b332dde

            SHA1

            c5a453754f50a1003ac2072746deeb80bf5901a3

            SHA256

            8ee2198906b803a342649250012326fb5e60a305cdc23534d5c24a600bb3ac39

            SHA512

            63e41836509279e4463b58090043c9e4eed1e1e134e21469fe404512b7084d18dcb0f62ed479c8b3fb971fa039fb20faf2d57eee484f0df214f1577cb4ecc450

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            816ddae898ed64f8da69df6d9b332dde

            SHA1

            c5a453754f50a1003ac2072746deeb80bf5901a3

            SHA256

            8ee2198906b803a342649250012326fb5e60a305cdc23534d5c24a600bb3ac39

            SHA512

            63e41836509279e4463b58090043c9e4eed1e1e134e21469fe404512b7084d18dcb0f62ed479c8b3fb971fa039fb20faf2d57eee484f0df214f1577cb4ecc450

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            816ddae898ed64f8da69df6d9b332dde

            SHA1

            c5a453754f50a1003ac2072746deeb80bf5901a3

            SHA256

            8ee2198906b803a342649250012326fb5e60a305cdc23534d5c24a600bb3ac39

            SHA512

            63e41836509279e4463b58090043c9e4eed1e1e134e21469fe404512b7084d18dcb0f62ed479c8b3fb971fa039fb20faf2d57eee484f0df214f1577cb4ecc450

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            816ddae898ed64f8da69df6d9b332dde

            SHA1

            c5a453754f50a1003ac2072746deeb80bf5901a3

            SHA256

            8ee2198906b803a342649250012326fb5e60a305cdc23534d5c24a600bb3ac39

            SHA512

            63e41836509279e4463b58090043c9e4eed1e1e134e21469fe404512b7084d18dcb0f62ed479c8b3fb971fa039fb20faf2d57eee484f0df214f1577cb4ecc450

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3cc8e3a501624ade9b1cc8b3cb80b537

            SHA1

            d589aeefc0ddd8c8e5bdfdfc2ed548b491d44af4

            SHA256

            52c17dfb42eac2cb18ccdb5f428050f314b6ff6930f94448136a70b1031773b1

            SHA512

            61faa2f0d98f525269b32e363615721a45d0857e0c0917107bb72a55fcaf6b15f40b694534e67c8ec39611e04dd7c65d0217da8ff67bb21def712b71c3afb82e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3cc8e3a501624ade9b1cc8b3cb80b537

            SHA1

            d589aeefc0ddd8c8e5bdfdfc2ed548b491d44af4

            SHA256

            52c17dfb42eac2cb18ccdb5f428050f314b6ff6930f94448136a70b1031773b1

            SHA512

            61faa2f0d98f525269b32e363615721a45d0857e0c0917107bb72a55fcaf6b15f40b694534e67c8ec39611e04dd7c65d0217da8ff67bb21def712b71c3afb82e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3cc8e3a501624ade9b1cc8b3cb80b537

            SHA1

            d589aeefc0ddd8c8e5bdfdfc2ed548b491d44af4

            SHA256

            52c17dfb42eac2cb18ccdb5f428050f314b6ff6930f94448136a70b1031773b1

            SHA512

            61faa2f0d98f525269b32e363615721a45d0857e0c0917107bb72a55fcaf6b15f40b694534e67c8ec39611e04dd7c65d0217da8ff67bb21def712b71c3afb82e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7c8d487ef068ee4f8ab098a9f382afbf

            SHA1

            0372892aa04bce2e9a7e5fff7eb7101d00d632de

            SHA256

            99154caffba889f3485db34b141705830a4d3d33567a3dcfe4980e3b6cf53409

            SHA512

            eed90a5e835c9cc05909f52f672888109ca4e384dfb33c44ef6e9d5688b1000fa83ca5e3f018aaa0996eec23c688f334a37b8a0f3a68e5ae9a00cc9510dd8b21

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7c8d487ef068ee4f8ab098a9f382afbf

            SHA1

            0372892aa04bce2e9a7e5fff7eb7101d00d632de

            SHA256

            99154caffba889f3485db34b141705830a4d3d33567a3dcfe4980e3b6cf53409

            SHA512

            eed90a5e835c9cc05909f52f672888109ca4e384dfb33c44ef6e9d5688b1000fa83ca5e3f018aaa0996eec23c688f334a37b8a0f3a68e5ae9a00cc9510dd8b21

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2a60ab969a97b8d8c0cb88ce3c92ca1c

            SHA1

            27840a892169d3c7a5e4b2a942a936d414e9a102

            SHA256

            e99227e94e1a4c5a0837d6ec58b32dbd940b6c9bd17cc6a16751f65c262ae462

            SHA512

            21e157300736d4332931dd99083bf37286241f299374342e37ced9f47fd299dbd665585ab58d32226133148e61e64b8688295b36578ddfc03a2e35d9af348543

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2a60ab969a97b8d8c0cb88ce3c92ca1c

            SHA1

            27840a892169d3c7a5e4b2a942a936d414e9a102

            SHA256

            e99227e94e1a4c5a0837d6ec58b32dbd940b6c9bd17cc6a16751f65c262ae462

            SHA512

            21e157300736d4332931dd99083bf37286241f299374342e37ced9f47fd299dbd665585ab58d32226133148e61e64b8688295b36578ddfc03a2e35d9af348543

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            2a60ab969a97b8d8c0cb88ce3c92ca1c

            SHA1

            27840a892169d3c7a5e4b2a942a936d414e9a102

            SHA256

            e99227e94e1a4c5a0837d6ec58b32dbd940b6c9bd17cc6a16751f65c262ae462

            SHA512

            21e157300736d4332931dd99083bf37286241f299374342e37ced9f47fd299dbd665585ab58d32226133148e61e64b8688295b36578ddfc03a2e35d9af348543

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            20eabf6827f7c1aeb65cfac5e533d190

            SHA1

            d72030c724756260d0fb8c7b920ef6f91a52dc16

            SHA256

            9b3415f59bf399120662974f3a9e987ec0e5b8c7d6449f10e023d85360f656d0

            SHA512

            f6b3137cc5162ef0e8760c22e4c625ab11b849aa9519b61049ad4dd3b25e84c48a26607267b2f9ac6e77530790e881862f3af38913ea135987943f2faf6bba6d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            20eabf6827f7c1aeb65cfac5e533d190

            SHA1

            d72030c724756260d0fb8c7b920ef6f91a52dc16

            SHA256

            9b3415f59bf399120662974f3a9e987ec0e5b8c7d6449f10e023d85360f656d0

            SHA512

            f6b3137cc5162ef0e8760c22e4c625ab11b849aa9519b61049ad4dd3b25e84c48a26607267b2f9ac6e77530790e881862f3af38913ea135987943f2faf6bba6d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            20eabf6827f7c1aeb65cfac5e533d190

            SHA1

            d72030c724756260d0fb8c7b920ef6f91a52dc16

            SHA256

            9b3415f59bf399120662974f3a9e987ec0e5b8c7d6449f10e023d85360f656d0

            SHA512

            f6b3137cc5162ef0e8760c22e4c625ab11b849aa9519b61049ad4dd3b25e84c48a26607267b2f9ac6e77530790e881862f3af38913ea135987943f2faf6bba6d

          • memory/3396-147-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3396-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3396-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB