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Analysis

  • max time kernel
    42s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    22/11/2022, 00:06

General

  • Target

    2e2b4fdc63af199a122a11c52b6ca2d8b5a693278ddb65009dc28f30dc17fac2.exe

  • Size

    602KB

  • MD5

    bf1deb5fc5c910e8ee0668e6357200c9

  • SHA1

    d96c882bed038ba1b662cafee8237218ee6724a3

  • SHA256

    2e2b4fdc63af199a122a11c52b6ca2d8b5a693278ddb65009dc28f30dc17fac2

  • SHA512

    701cf254a3f32510f252f98fcd1a5de6ae9726cfe42130ebad2c97258efe34759649def2a4fd9eb06315d1b88d8760705bdbc81ff8b033cbb163feb7ff37aa71

  • SSDEEP

    12288:4Iny5DYTkIKp7nEfoGE2TaDj7CuuMzk77dasORzevEJ:WUTk9pUodMSH3uMzk76RzKE

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\2e2b4fdc63af199a122a11c52b6ca2d8b5a693278ddb65009dc28f30dc17fac2.exe
    "C:\Users\Admin\AppData\Local\Temp\2e2b4fdc63af199a122a11c52b6ca2d8b5a693278ddb65009dc28f30dc17fac2.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:1112
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:856
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1856
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2044
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1712
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2028
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1680
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:624
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1928
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1216
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:396
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1540
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1644
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1956

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dcedc1c03fc62eed83a3318044f3772b

            SHA1

            0ff314cf39d927db4738e06dadc4fb29fde34fe2

            SHA256

            808a7c52a9c1a785b39574c376c3ea068b2071bd58c30bbf2531be2237030d28

            SHA512

            56c74862ffe799c691b168b37697875da9ecb69ced5c6cf45b31e0df7f81c30a7bae18c3edd7da5cc379cc9cad11067c682093a6ce9ec8c4736a1586b9092f9f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d91c09cd49bbf23b62eb246647736641

            SHA1

            5aa3049632506b221d9cd9a72086c1e7579b74de

            SHA256

            36c582289e8a108e2e5b26a631a21efe41c923aa5dc9f6f81e3cf6eb4a8ffaf8

            SHA512

            9d688674f451607c35131044f888409559647ae4349da045be7576ca51754f24251ff403af6b79eb94111ebbf846f30db081aad88c6e7f76ce107baf55d2874a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7b30dd3efcbe2cc2730a9602d0fc6639

            SHA1

            0dcd1b9982211005e20d7849ce2b6125153b8465

            SHA256

            7e66d558631975d13227b19a5c6b6212d9481895f0b20c11ca4b5d4025da141c

            SHA512

            e428846340924ea2af7e619def10d375843518beb444a2cdc73e70df71f67aa9b72e39ec10455f8087a21e910899c77232b06099e7f5566cc0659a46363f8c4b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            185526a5441889973bfe5951baf5a2f4

            SHA1

            eaa610bef026034a897c7ebcc8824d8c61335692

            SHA256

            83de4435d55cd49b5bb88e13ac38c78d3ffa9a826f0cf41ebd22bf96f0a70c91

            SHA512

            5888fd2ef3f98111444af4ff4889ea7ac17122016f23eec722b66aa4dfee0cd6d516db2b721d4f71139c1077b9c729cc55e841fcc1e58d0494b478d832b7a01a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            185526a5441889973bfe5951baf5a2f4

            SHA1

            eaa610bef026034a897c7ebcc8824d8c61335692

            SHA256

            83de4435d55cd49b5bb88e13ac38c78d3ffa9a826f0cf41ebd22bf96f0a70c91

            SHA512

            5888fd2ef3f98111444af4ff4889ea7ac17122016f23eec722b66aa4dfee0cd6d516db2b721d4f71139c1077b9c729cc55e841fcc1e58d0494b478d832b7a01a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3d5637b2b75411f9b8fdd401a3605f1e

            SHA1

            204cec6dcc1c2651f5bffc5fb4e23c854954cabb

            SHA256

            be58cc8eb3437afd03aed7b3e8d1403831002aeb600dd8af72c817a00bdb1f0a

            SHA512

            b4e5f5c57594eb08c6c3df7c6c7b686cdf6345993a24be6d208f20c1bde6abad4dbf93040ea6b2fb89713bd16783695a282ed6f0debf327cb141dddfbd930b79

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3d5637b2b75411f9b8fdd401a3605f1e

            SHA1

            204cec6dcc1c2651f5bffc5fb4e23c854954cabb

            SHA256

            be58cc8eb3437afd03aed7b3e8d1403831002aeb600dd8af72c817a00bdb1f0a

            SHA512

            b4e5f5c57594eb08c6c3df7c6c7b686cdf6345993a24be6d208f20c1bde6abad4dbf93040ea6b2fb89713bd16783695a282ed6f0debf327cb141dddfbd930b79

          • \Users\Admin\AppData\Local\Temp\nstEF61.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstEF61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstEF61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstEF61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstEF61.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dcedc1c03fc62eed83a3318044f3772b

            SHA1

            0ff314cf39d927db4738e06dadc4fb29fde34fe2

            SHA256

            808a7c52a9c1a785b39574c376c3ea068b2071bd58c30bbf2531be2237030d28

            SHA512

            56c74862ffe799c691b168b37697875da9ecb69ced5c6cf45b31e0df7f81c30a7bae18c3edd7da5cc379cc9cad11067c682093a6ce9ec8c4736a1586b9092f9f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dcedc1c03fc62eed83a3318044f3772b

            SHA1

            0ff314cf39d927db4738e06dadc4fb29fde34fe2

            SHA256

            808a7c52a9c1a785b39574c376c3ea068b2071bd58c30bbf2531be2237030d28

            SHA512

            56c74862ffe799c691b168b37697875da9ecb69ced5c6cf45b31e0df7f81c30a7bae18c3edd7da5cc379cc9cad11067c682093a6ce9ec8c4736a1586b9092f9f

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dcedc1c03fc62eed83a3318044f3772b

            SHA1

            0ff314cf39d927db4738e06dadc4fb29fde34fe2

            SHA256

            808a7c52a9c1a785b39574c376c3ea068b2071bd58c30bbf2531be2237030d28

            SHA512

            56c74862ffe799c691b168b37697875da9ecb69ced5c6cf45b31e0df7f81c30a7bae18c3edd7da5cc379cc9cad11067c682093a6ce9ec8c4736a1586b9092f9f

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d91c09cd49bbf23b62eb246647736641

            SHA1

            5aa3049632506b221d9cd9a72086c1e7579b74de

            SHA256

            36c582289e8a108e2e5b26a631a21efe41c923aa5dc9f6f81e3cf6eb4a8ffaf8

            SHA512

            9d688674f451607c35131044f888409559647ae4349da045be7576ca51754f24251ff403af6b79eb94111ebbf846f30db081aad88c6e7f76ce107baf55d2874a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            d91c09cd49bbf23b62eb246647736641

            SHA1

            5aa3049632506b221d9cd9a72086c1e7579b74de

            SHA256

            36c582289e8a108e2e5b26a631a21efe41c923aa5dc9f6f81e3cf6eb4a8ffaf8

            SHA512

            9d688674f451607c35131044f888409559647ae4349da045be7576ca51754f24251ff403af6b79eb94111ebbf846f30db081aad88c6e7f76ce107baf55d2874a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7b30dd3efcbe2cc2730a9602d0fc6639

            SHA1

            0dcd1b9982211005e20d7849ce2b6125153b8465

            SHA256

            7e66d558631975d13227b19a5c6b6212d9481895f0b20c11ca4b5d4025da141c

            SHA512

            e428846340924ea2af7e619def10d375843518beb444a2cdc73e70df71f67aa9b72e39ec10455f8087a21e910899c77232b06099e7f5566cc0659a46363f8c4b

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            185526a5441889973bfe5951baf5a2f4

            SHA1

            eaa610bef026034a897c7ebcc8824d8c61335692

            SHA256

            83de4435d55cd49b5bb88e13ac38c78d3ffa9a826f0cf41ebd22bf96f0a70c91

            SHA512

            5888fd2ef3f98111444af4ff4889ea7ac17122016f23eec722b66aa4dfee0cd6d516db2b721d4f71139c1077b9c729cc55e841fcc1e58d0494b478d832b7a01a

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            3d5637b2b75411f9b8fdd401a3605f1e

            SHA1

            204cec6dcc1c2651f5bffc5fb4e23c854954cabb

            SHA256

            be58cc8eb3437afd03aed7b3e8d1403831002aeb600dd8af72c817a00bdb1f0a

            SHA512

            b4e5f5c57594eb08c6c3df7c6c7b686cdf6345993a24be6d208f20c1bde6abad4dbf93040ea6b2fb89713bd16783695a282ed6f0debf327cb141dddfbd930b79

          • memory/1112-54-0x0000000074D61000-0x0000000074D63000-memory.dmp

            Filesize

            8KB

          • memory/1112-60-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1112-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB