Analysis

  • max time kernel
    42s
  • 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 10:12

General

  • Target

    c69694ec9e49c0ab834780f6f346f7426f0b4364dcdfee7ea3b45167b272583a.exe

  • Size

    603KB

  • MD5

    6ba809634362357ba360011682a973ab

  • SHA1

    a9169ee1d6d44b8da379fdf8052e28481d55f2a2

  • SHA256

    c69694ec9e49c0ab834780f6f346f7426f0b4364dcdfee7ea3b45167b272583a

  • SHA512

    9555b00a4d31e0ef346c941fcbd67c5f086b3e5d74af58c8c14c70f9988f1ee6103600f334cd911c68334553a250ab442fdfd68e3fb002ccf17080bd3ce548d6

  • SSDEEP

    12288:MIny5DYTfItc/URQgs+zbq9Rh8ZAC/xArcQrA5EJXCAoXgGNyGv:KUTfGc/URnfb93GrHJSAmgZGv

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\c69694ec9e49c0ab834780f6f346f7426f0b4364dcdfee7ea3b45167b272583a.exe
    "C:\Users\Admin\AppData\Local\Temp\c69694ec9e49c0ab834780f6f346f7426f0b4364dcdfee7ea3b45167b272583a.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:1664
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:956
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:268
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:520
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:560
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1164
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1940
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1628
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1968
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:864
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1328
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:700
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1256
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:836

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            01da36a1bd67c4cf2e3a443e1a7aec24

            SHA1

            7ed6ae4a56c39b81340e5503894dddd7cbec2ce9

            SHA256

            cb307464f408346c80325580d7af4f97148934753b7c0ddb423c1a721d4ad117

            SHA512

            9ceaf66164f71ac7af5bc35f43aa9b319e831da9fd2f66131afc5dcc0a832480c35fbc5f04191a577a6e9551acc98bfca376ef486cbdd555fee36cc91fa80647

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f2abf0c84aa42717fbd4fa60bd05f979

            SHA1

            87dcf1f10cd5b516e18a7fca3d5727948b128b6a

            SHA256

            123dc2269c04d361767dc83300dc2f4eb38d7cbbd0f9bcafdcbeb14fb90cf079

            SHA512

            a09c4dea31c29836712918972be1ee90c45a7e67a0e98c261d3baafeda8a14f70aed6eb73be4b64ada1c0707c63060d41d4787df509798445adaaae7b81c3d20

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bdb1b79be36ec326d5083e93ed5985d7

            SHA1

            045a308cac7d02e4310c487814679a7349bc7bc9

            SHA256

            f09d5a3626dd8259c9d40e72a684129738b9bceca051869c832a7dec10cebc03

            SHA512

            cb1a3f041748a5fe21d0dfc23e936833dec3f589bcf3315116ded65f743934a4ff198752679137a88599b2e855447e4e576420c8b9fb87b21ea339cfddf734ab

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e4ee40046982944c31d9acde2b46c2b9

            SHA1

            7e59ea7d0267b51402a3ceaacfb8e717dffb6d9d

            SHA256

            1107b175e0556fa8175ea1dc7e3e049441c667d5b6ce8c24d0373d75d28dd74c

            SHA512

            3b3ca9d2de93c09c37a351105980e47e4048aae802bc587b5c7046754f0e04f364b8e138a46e812ac4f691b422d895668dc41393f1dfdcb4da74cad424f33c6c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e4ee40046982944c31d9acde2b46c2b9

            SHA1

            7e59ea7d0267b51402a3ceaacfb8e717dffb6d9d

            SHA256

            1107b175e0556fa8175ea1dc7e3e049441c667d5b6ce8c24d0373d75d28dd74c

            SHA512

            3b3ca9d2de93c09c37a351105980e47e4048aae802bc587b5c7046754f0e04f364b8e138a46e812ac4f691b422d895668dc41393f1dfdcb4da74cad424f33c6c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c40ee0be9d57983fb03abea91fc8a81b

            SHA1

            383477558c18b1e629a878c7bc999ef536b05a0c

            SHA256

            094fc7f16f58006cb35181f24a79e38aa830ac5614a049ebd56e9dcc4d27c900

            SHA512

            a67e50b06675370c405e932aab683a0b374e5d2215d287e4892fca48d414c6c1fd9872bc16f9c2049be732c92cac6550ab311012f0dc5a7f5df6f8968d47daad

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c40ee0be9d57983fb03abea91fc8a81b

            SHA1

            383477558c18b1e629a878c7bc999ef536b05a0c

            SHA256

            094fc7f16f58006cb35181f24a79e38aa830ac5614a049ebd56e9dcc4d27c900

            SHA512

            a67e50b06675370c405e932aab683a0b374e5d2215d287e4892fca48d414c6c1fd9872bc16f9c2049be732c92cac6550ab311012f0dc5a7f5df6f8968d47daad

          • \Users\Admin\AppData\Local\Temp\nsoA3F0.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoA3F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA3F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA3F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoA3F0.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            01da36a1bd67c4cf2e3a443e1a7aec24

            SHA1

            7ed6ae4a56c39b81340e5503894dddd7cbec2ce9

            SHA256

            cb307464f408346c80325580d7af4f97148934753b7c0ddb423c1a721d4ad117

            SHA512

            9ceaf66164f71ac7af5bc35f43aa9b319e831da9fd2f66131afc5dcc0a832480c35fbc5f04191a577a6e9551acc98bfca376ef486cbdd555fee36cc91fa80647

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            01da36a1bd67c4cf2e3a443e1a7aec24

            SHA1

            7ed6ae4a56c39b81340e5503894dddd7cbec2ce9

            SHA256

            cb307464f408346c80325580d7af4f97148934753b7c0ddb423c1a721d4ad117

            SHA512

            9ceaf66164f71ac7af5bc35f43aa9b319e831da9fd2f66131afc5dcc0a832480c35fbc5f04191a577a6e9551acc98bfca376ef486cbdd555fee36cc91fa80647

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            01da36a1bd67c4cf2e3a443e1a7aec24

            SHA1

            7ed6ae4a56c39b81340e5503894dddd7cbec2ce9

            SHA256

            cb307464f408346c80325580d7af4f97148934753b7c0ddb423c1a721d4ad117

            SHA512

            9ceaf66164f71ac7af5bc35f43aa9b319e831da9fd2f66131afc5dcc0a832480c35fbc5f04191a577a6e9551acc98bfca376ef486cbdd555fee36cc91fa80647

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f2abf0c84aa42717fbd4fa60bd05f979

            SHA1

            87dcf1f10cd5b516e18a7fca3d5727948b128b6a

            SHA256

            123dc2269c04d361767dc83300dc2f4eb38d7cbbd0f9bcafdcbeb14fb90cf079

            SHA512

            a09c4dea31c29836712918972be1ee90c45a7e67a0e98c261d3baafeda8a14f70aed6eb73be4b64ada1c0707c63060d41d4787df509798445adaaae7b81c3d20

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            f2abf0c84aa42717fbd4fa60bd05f979

            SHA1

            87dcf1f10cd5b516e18a7fca3d5727948b128b6a

            SHA256

            123dc2269c04d361767dc83300dc2f4eb38d7cbbd0f9bcafdcbeb14fb90cf079

            SHA512

            a09c4dea31c29836712918972be1ee90c45a7e67a0e98c261d3baafeda8a14f70aed6eb73be4b64ada1c0707c63060d41d4787df509798445adaaae7b81c3d20

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            bdb1b79be36ec326d5083e93ed5985d7

            SHA1

            045a308cac7d02e4310c487814679a7349bc7bc9

            SHA256

            f09d5a3626dd8259c9d40e72a684129738b9bceca051869c832a7dec10cebc03

            SHA512

            cb1a3f041748a5fe21d0dfc23e936833dec3f589bcf3315116ded65f743934a4ff198752679137a88599b2e855447e4e576420c8b9fb87b21ea339cfddf734ab

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e4ee40046982944c31d9acde2b46c2b9

            SHA1

            7e59ea7d0267b51402a3ceaacfb8e717dffb6d9d

            SHA256

            1107b175e0556fa8175ea1dc7e3e049441c667d5b6ce8c24d0373d75d28dd74c

            SHA512

            3b3ca9d2de93c09c37a351105980e47e4048aae802bc587b5c7046754f0e04f364b8e138a46e812ac4f691b422d895668dc41393f1dfdcb4da74cad424f33c6c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c40ee0be9d57983fb03abea91fc8a81b

            SHA1

            383477558c18b1e629a878c7bc999ef536b05a0c

            SHA256

            094fc7f16f58006cb35181f24a79e38aa830ac5614a049ebd56e9dcc4d27c900

            SHA512

            a67e50b06675370c405e932aab683a0b374e5d2215d287e4892fca48d414c6c1fd9872bc16f9c2049be732c92cac6550ab311012f0dc5a7f5df6f8968d47daad

          • memory/268-58-0x0000000000000000-mapping.dmp

          • memory/520-61-0x0000000000000000-mapping.dmp

          • memory/560-62-0x0000000000000000-mapping.dmp

          • memory/700-87-0x0000000000000000-mapping.dmp

          • memory/864-81-0x0000000000000000-mapping.dmp

          • memory/956-57-0x0000000000000000-mapping.dmp

          • memory/1164-64-0x0000000000000000-mapping.dmp

          • memory/1328-86-0x0000000000000000-mapping.dmp

          • memory/1628-76-0x0000000000000000-mapping.dmp

          • memory/1664-54-0x0000000075591000-0x0000000075593000-memory.dmp

            Filesize

            8KB

          • memory/1664-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1664-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1940-70-0x0000000000000000-mapping.dmp

          • memory/1968-80-0x0000000000000000-mapping.dmp