Analysis

  • max time kernel
    67s
  • max time network
    109s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:09

General

  • Target

    e265b40c9d92e973e2fdb3e942e7ddfedbe05506715445b2e7bc6fad871c675c.exe

  • Size

    603KB

  • MD5

    0a708b40af6a3867371acf22cd0e5822

  • SHA1

    4463657037c7a6506f3aa15bd97f6cb65b613492

  • SHA256

    e265b40c9d92e973e2fdb3e942e7ddfedbe05506715445b2e7bc6fad871c675c

  • SHA512

    f365e20f2ef82c879e6c8f6d80a7ca321c815c072175b3b6e6bec057d86663d0f3550f199c9310f3d123828e96b12aec49df51e3920fec88683c28269fd1e3b4

  • SSDEEP

    12288:1Iny5DYTmIpp/fHjFLjIXTAip/LYNTSTxRUZmoHLT68rR4g4h:BUTmGBZLMjAip/EsTxRUZJHLmIR

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\e265b40c9d92e973e2fdb3e942e7ddfedbe05506715445b2e7bc6fad871c675c.exe
    "C:\Users\Admin\AppData\Local\Temp\e265b40c9d92e973e2fdb3e942e7ddfedbe05506715445b2e7bc6fad871c675c.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:576
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1704
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1504
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1648
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1012
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1052
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:764
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1044
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:548
          • 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:1960
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1740
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1672
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1716

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            667edd1e33cef4c082e640d121a4ac6b

            SHA1

            44759f19b0dba0b82e44a96e2325add909a4badd

            SHA256

            f0d872883f438df1d32a0d7c3199bb703377799fda86d581bde30079f91b8993

            SHA512

            9e72202fac3f23962edf6390a8b6bb77d6cabf13fb5da624569ceb1195b686a1d8137eea9d47fc078933db58e17eae4766de4264fe2c0fe7414d5e828ebfc696

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4b5c517322bb3bfaf447cad2e4336a01

            SHA1

            1160f4f20042d34b5219726c51f0cc85e964189f

            SHA256

            9bc3641b311568813b0605fcc637f2c8c14041a75b72e0b8da3a1c56b2894239

            SHA512

            c2621c66c8a1ff54097af4145c1da52df1476ce527eb3607652d03d1c41b56537de584bc913fefb9d0f4fc60a4e9be48d2d08630ec65661236fbe9f4eab5bcd8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            461d32eb5db8429bb20694856ff4ef36

            SHA1

            9b2055fb9e135e8715eaa2f080cfa42bc9b92354

            SHA256

            ac1c2f9f2f701c93190d7cc1cc555d1cfd32f1770cfb799e6e858cbf6711d845

            SHA512

            35990a7f3c9b634ac21eeb5901db8dabca80bbd199340be66a18a545bafb87fe213254c8b869fea16c977fad9fd83f378bdab4440a4deb584527ed8be9d37f98

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1cf84b3e8c5d963045e103976362ac5d

            SHA1

            3ac929a90b78bcf97d7a97cbc86aa9a8f79ad6d0

            SHA256

            282f945be996e28e350c49e59a202690e7d069395ec065b8a9c44f88683446a7

            SHA512

            e6b0e15788bc71fe281e0ccc47b84e3be698837222ecd026bcfaabc3be75e9a851b6b41e92350f4963c2fb3143e8da1fa21305dcc46d97326a079384c2231226

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1cf84b3e8c5d963045e103976362ac5d

            SHA1

            3ac929a90b78bcf97d7a97cbc86aa9a8f79ad6d0

            SHA256

            282f945be996e28e350c49e59a202690e7d069395ec065b8a9c44f88683446a7

            SHA512

            e6b0e15788bc71fe281e0ccc47b84e3be698837222ecd026bcfaabc3be75e9a851b6b41e92350f4963c2fb3143e8da1fa21305dcc46d97326a079384c2231226

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d26b5e20006a4c545d6023eda8d223b2

            SHA1

            8de73f15bbfa6792cd5843f1d8831d3debc11157

            SHA256

            c2e224fb2106d506d38b79bfbc785d978748f0778e06314551cf9a885886c78f

            SHA512

            3261a597e2eb4cb90159619957aaf7419bc275dc882b7acdeb9c945f346c077e55dcc25eb609ab3442757f989d26475ca4bc5ad041de7b42c6ffe2fdf19acf05

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d26b5e20006a4c545d6023eda8d223b2

            SHA1

            8de73f15bbfa6792cd5843f1d8831d3debc11157

            SHA256

            c2e224fb2106d506d38b79bfbc785d978748f0778e06314551cf9a885886c78f

            SHA512

            3261a597e2eb4cb90159619957aaf7419bc275dc882b7acdeb9c945f346c077e55dcc25eb609ab3442757f989d26475ca4bc5ad041de7b42c6ffe2fdf19acf05

          • \Users\Admin\AppData\Local\Temp\nsjE949.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjE949.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjE949.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjE949.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjE949.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            667edd1e33cef4c082e640d121a4ac6b

            SHA1

            44759f19b0dba0b82e44a96e2325add909a4badd

            SHA256

            f0d872883f438df1d32a0d7c3199bb703377799fda86d581bde30079f91b8993

            SHA512

            9e72202fac3f23962edf6390a8b6bb77d6cabf13fb5da624569ceb1195b686a1d8137eea9d47fc078933db58e17eae4766de4264fe2c0fe7414d5e828ebfc696

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            667edd1e33cef4c082e640d121a4ac6b

            SHA1

            44759f19b0dba0b82e44a96e2325add909a4badd

            SHA256

            f0d872883f438df1d32a0d7c3199bb703377799fda86d581bde30079f91b8993

            SHA512

            9e72202fac3f23962edf6390a8b6bb77d6cabf13fb5da624569ceb1195b686a1d8137eea9d47fc078933db58e17eae4766de4264fe2c0fe7414d5e828ebfc696

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            667edd1e33cef4c082e640d121a4ac6b

            SHA1

            44759f19b0dba0b82e44a96e2325add909a4badd

            SHA256

            f0d872883f438df1d32a0d7c3199bb703377799fda86d581bde30079f91b8993

            SHA512

            9e72202fac3f23962edf6390a8b6bb77d6cabf13fb5da624569ceb1195b686a1d8137eea9d47fc078933db58e17eae4766de4264fe2c0fe7414d5e828ebfc696

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4b5c517322bb3bfaf447cad2e4336a01

            SHA1

            1160f4f20042d34b5219726c51f0cc85e964189f

            SHA256

            9bc3641b311568813b0605fcc637f2c8c14041a75b72e0b8da3a1c56b2894239

            SHA512

            c2621c66c8a1ff54097af4145c1da52df1476ce527eb3607652d03d1c41b56537de584bc913fefb9d0f4fc60a4e9be48d2d08630ec65661236fbe9f4eab5bcd8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            4b5c517322bb3bfaf447cad2e4336a01

            SHA1

            1160f4f20042d34b5219726c51f0cc85e964189f

            SHA256

            9bc3641b311568813b0605fcc637f2c8c14041a75b72e0b8da3a1c56b2894239

            SHA512

            c2621c66c8a1ff54097af4145c1da52df1476ce527eb3607652d03d1c41b56537de584bc913fefb9d0f4fc60a4e9be48d2d08630ec65661236fbe9f4eab5bcd8

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            461d32eb5db8429bb20694856ff4ef36

            SHA1

            9b2055fb9e135e8715eaa2f080cfa42bc9b92354

            SHA256

            ac1c2f9f2f701c93190d7cc1cc555d1cfd32f1770cfb799e6e858cbf6711d845

            SHA512

            35990a7f3c9b634ac21eeb5901db8dabca80bbd199340be66a18a545bafb87fe213254c8b869fea16c977fad9fd83f378bdab4440a4deb584527ed8be9d37f98

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            1cf84b3e8c5d963045e103976362ac5d

            SHA1

            3ac929a90b78bcf97d7a97cbc86aa9a8f79ad6d0

            SHA256

            282f945be996e28e350c49e59a202690e7d069395ec065b8a9c44f88683446a7

            SHA512

            e6b0e15788bc71fe281e0ccc47b84e3be698837222ecd026bcfaabc3be75e9a851b6b41e92350f4963c2fb3143e8da1fa21305dcc46d97326a079384c2231226

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            d26b5e20006a4c545d6023eda8d223b2

            SHA1

            8de73f15bbfa6792cd5843f1d8831d3debc11157

            SHA256

            c2e224fb2106d506d38b79bfbc785d978748f0778e06314551cf9a885886c78f

            SHA512

            3261a597e2eb4cb90159619957aaf7419bc275dc882b7acdeb9c945f346c077e55dcc25eb609ab3442757f989d26475ca4bc5ad041de7b42c6ffe2fdf19acf05

          • memory/548-81-0x0000000000000000-mapping.dmp

          • memory/576-54-0x0000000076B51000-0x0000000076B53000-memory.dmp

            Filesize

            8KB

          • memory/576-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/576-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/576-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/764-71-0x0000000000000000-mapping.dmp

          • memory/1012-62-0x0000000000000000-mapping.dmp

          • memory/1044-77-0x0000000000000000-mapping.dmp

          • memory/1052-64-0x0000000000000000-mapping.dmp

          • memory/1504-58-0x0000000000000000-mapping.dmp

          • memory/1648-61-0x0000000000000000-mapping.dmp

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

          • memory/1704-57-0x0000000000000000-mapping.dmp

          • memory/1740-88-0x0000000000000000-mapping.dmp

          • memory/1960-87-0x0000000000000000-mapping.dmp