Analysis

  • max time kernel
    46s
  • max time network
    51s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:08

General

  • Target

    ec3064b5ede79fcf82922153948879af08ed647fb293fd9956ae760ddca89934.exe

  • Size

    602KB

  • MD5

    a4c269a89588d29263237eba3bce4bfc

  • SHA1

    d59a5e8128eff38bcc9db8bbe5983dac11b82ae8

  • SHA256

    ec3064b5ede79fcf82922153948879af08ed647fb293fd9956ae760ddca89934

  • SHA512

    35a9609af6368cdc66f9ce8605a57836de1a1edd43de741b432dc7acf62e5343f75f0ea0cdc28c7c3c42f28a9461f7bc367ee9c89e93a5bb28340b045f4810dc

  • SSDEEP

    12288:uIny5DYTIl0gegK1mz9PrCHm4SdQNOgtzLO9vekp2C:wUTk0gjtz9j4SSNDtzLOT2

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\ec3064b5ede79fcf82922153948879af08ed647fb293fd9956ae760ddca89934.exe
    "C:\Users\Admin\AppData\Local\Temp\ec3064b5ede79fcf82922153948879af08ed647fb293fd9956ae760ddca89934.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:1308
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:308
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1620
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:916
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:468
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:688
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1500
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1660
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1940
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2008
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1664
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1040
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:968
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1508

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41ea22c07abc26c247c6e23fd87f405f

            SHA1

            d1d94211bcf6b59b0a88ac3c89640312940ca164

            SHA256

            a5196b186bdbda4e007316913b8d3db695bb0eb3ea4a8767a7d4e43da0bc5e29

            SHA512

            f6b9d73de0cf4b0c75f7cd097c7cd2ddfc3e571479521ba576a7b1a9972ff749f0f0b10365e5c37f719d602fd41773913f59c98ef6292541f58ca26c0cb93b5c

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            571fab0c65fdd4e1261cd9cd9fdc7405

            SHA1

            23c26b89bd511049b50eea27e312dd9415bee05d

            SHA256

            7c485e2863ec374c597dc8881bdb4d5caff1ade18165fe3a752d1140f706983c

            SHA512

            8d667e02baedaeee553aa8eee77f41f9508d57c3e498c6f32fe5bcd6c938d5b4cadcdc211a2b6014beb942e93f9698bc153df5a5179cb5339b0918e716aed9ea

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            72920f67f9666f2a912c27ba233067c9

            SHA1

            0a34cc692d4d258dc2444667cb0d2b34fddc4c1d

            SHA256

            c098bab778a573a4a9f439acdf78de1aa34f0892613600b8b86c4d0ba39f6fe7

            SHA512

            0307875bcfc260575b0e79013bcf2271dd76007ff07b50cbdb129b440de4fbc6129482f84291d8713130e82eb2063a0a111e028f462cb9218965eb345ef19c87

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            18186f9c00b0cb98b82aa317b5b5041e

            SHA1

            419146bc7baada5cb22da18d84cc7f171f0cabba

            SHA256

            9c161d7eb6cd6bb484cbaff828519da1748bf1819a8cbd7b9bfc442040ee909a

            SHA512

            9e9f043e47c29d21daaefc948628756eaa6965184eb9b9692311a5833105261fd446ca7ac2e8afbf66d359f54f10435f2e916d62794a03fc530c48dad9a43a42

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            18186f9c00b0cb98b82aa317b5b5041e

            SHA1

            419146bc7baada5cb22da18d84cc7f171f0cabba

            SHA256

            9c161d7eb6cd6bb484cbaff828519da1748bf1819a8cbd7b9bfc442040ee909a

            SHA512

            9e9f043e47c29d21daaefc948628756eaa6965184eb9b9692311a5833105261fd446ca7ac2e8afbf66d359f54f10435f2e916d62794a03fc530c48dad9a43a42

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f6e4e8b87609c3c54c281e505ad825a3

            SHA1

            94cb41b1249377095ee2944d6f0e5c791a0aaadb

            SHA256

            b5c9b516cea060e1ddea4a8b2b6102d706a4acaf3decb27a5e9eb73b1c6e2546

            SHA512

            c348840e1c9ead1259b6c41ef4f19bd10ed716dfd2643c7045ff121fe90ef37d467173450e79e4f4331333320888aca32ec123a402cf9b14ec97963837052ee4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f6e4e8b87609c3c54c281e505ad825a3

            SHA1

            94cb41b1249377095ee2944d6f0e5c791a0aaadb

            SHA256

            b5c9b516cea060e1ddea4a8b2b6102d706a4acaf3decb27a5e9eb73b1c6e2546

            SHA512

            c348840e1c9ead1259b6c41ef4f19bd10ed716dfd2643c7045ff121fe90ef37d467173450e79e4f4331333320888aca32ec123a402cf9b14ec97963837052ee4

          • \Users\Admin\AppData\Local\Temp\nsy6A8.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy6A8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6A8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6A8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy6A8.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41ea22c07abc26c247c6e23fd87f405f

            SHA1

            d1d94211bcf6b59b0a88ac3c89640312940ca164

            SHA256

            a5196b186bdbda4e007316913b8d3db695bb0eb3ea4a8767a7d4e43da0bc5e29

            SHA512

            f6b9d73de0cf4b0c75f7cd097c7cd2ddfc3e571479521ba576a7b1a9972ff749f0f0b10365e5c37f719d602fd41773913f59c98ef6292541f58ca26c0cb93b5c

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41ea22c07abc26c247c6e23fd87f405f

            SHA1

            d1d94211bcf6b59b0a88ac3c89640312940ca164

            SHA256

            a5196b186bdbda4e007316913b8d3db695bb0eb3ea4a8767a7d4e43da0bc5e29

            SHA512

            f6b9d73de0cf4b0c75f7cd097c7cd2ddfc3e571479521ba576a7b1a9972ff749f0f0b10365e5c37f719d602fd41773913f59c98ef6292541f58ca26c0cb93b5c

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            41ea22c07abc26c247c6e23fd87f405f

            SHA1

            d1d94211bcf6b59b0a88ac3c89640312940ca164

            SHA256

            a5196b186bdbda4e007316913b8d3db695bb0eb3ea4a8767a7d4e43da0bc5e29

            SHA512

            f6b9d73de0cf4b0c75f7cd097c7cd2ddfc3e571479521ba576a7b1a9972ff749f0f0b10365e5c37f719d602fd41773913f59c98ef6292541f58ca26c0cb93b5c

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            571fab0c65fdd4e1261cd9cd9fdc7405

            SHA1

            23c26b89bd511049b50eea27e312dd9415bee05d

            SHA256

            7c485e2863ec374c597dc8881bdb4d5caff1ade18165fe3a752d1140f706983c

            SHA512

            8d667e02baedaeee553aa8eee77f41f9508d57c3e498c6f32fe5bcd6c938d5b4cadcdc211a2b6014beb942e93f9698bc153df5a5179cb5339b0918e716aed9ea

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            571fab0c65fdd4e1261cd9cd9fdc7405

            SHA1

            23c26b89bd511049b50eea27e312dd9415bee05d

            SHA256

            7c485e2863ec374c597dc8881bdb4d5caff1ade18165fe3a752d1140f706983c

            SHA512

            8d667e02baedaeee553aa8eee77f41f9508d57c3e498c6f32fe5bcd6c938d5b4cadcdc211a2b6014beb942e93f9698bc153df5a5179cb5339b0918e716aed9ea

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            72920f67f9666f2a912c27ba233067c9

            SHA1

            0a34cc692d4d258dc2444667cb0d2b34fddc4c1d

            SHA256

            c098bab778a573a4a9f439acdf78de1aa34f0892613600b8b86c4d0ba39f6fe7

            SHA512

            0307875bcfc260575b0e79013bcf2271dd76007ff07b50cbdb129b440de4fbc6129482f84291d8713130e82eb2063a0a111e028f462cb9218965eb345ef19c87

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            18186f9c00b0cb98b82aa317b5b5041e

            SHA1

            419146bc7baada5cb22da18d84cc7f171f0cabba

            SHA256

            9c161d7eb6cd6bb484cbaff828519da1748bf1819a8cbd7b9bfc442040ee909a

            SHA512

            9e9f043e47c29d21daaefc948628756eaa6965184eb9b9692311a5833105261fd446ca7ac2e8afbf66d359f54f10435f2e916d62794a03fc530c48dad9a43a42

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            f6e4e8b87609c3c54c281e505ad825a3

            SHA1

            94cb41b1249377095ee2944d6f0e5c791a0aaadb

            SHA256

            b5c9b516cea060e1ddea4a8b2b6102d706a4acaf3decb27a5e9eb73b1c6e2546

            SHA512

            c348840e1c9ead1259b6c41ef4f19bd10ed716dfd2643c7045ff121fe90ef37d467173450e79e4f4331333320888aca32ec123a402cf9b14ec97963837052ee4

          • memory/308-57-0x0000000000000000-mapping.dmp

          • memory/468-62-0x0000000000000000-mapping.dmp

          • memory/688-64-0x0000000000000000-mapping.dmp

          • memory/916-61-0x0000000000000000-mapping.dmp

          • memory/1040-87-0x0000000000000000-mapping.dmp

          • memory/1308-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1308-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1308-54-0x0000000074DA1000-0x0000000074DA3000-memory.dmp

            Filesize

            8KB

          • memory/1500-70-0x0000000000000000-mapping.dmp

          • memory/1620-58-0x0000000000000000-mapping.dmp

          • memory/1660-76-0x0000000000000000-mapping.dmp

          • memory/1664-86-0x0000000000000000-mapping.dmp

          • memory/1940-80-0x0000000000000000-mapping.dmp

          • memory/2008-81-0x0000000000000000-mapping.dmp