Analysis

  • max time kernel
    86s
  • max time network
    30s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:56

General

  • Target

    57205c0b85071b6a7a0702c5482ef80a4851a4461ece27a9d7812668fcb93228.exe

  • Size

    447KB

  • MD5

    679e097829ce87f142a76e2b9bd24987

  • SHA1

    93d5d56edc49db06c5d1b6d4aa3fa2e3147bc5ef

  • SHA256

    57205c0b85071b6a7a0702c5482ef80a4851a4461ece27a9d7812668fcb93228

  • SHA512

    9063cd1200f3a5f8016cf745ac1835a6f368456aab5f6ff04a106dbb6da24e7071d9a3907a765e9ce93b5db5bddcadd3fca83161add22d4fc81bc4cc658365ba

  • SSDEEP

    12288:oYzUX+Dan0BhktrKk3upM+x38vgPSHThKY+HEK:oYzI+GnehktrKkyfljSNKY+HD

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\57205c0b85071b6a7a0702c5482ef80a4851a4461ece27a9d7812668fcb93228.exe
    "C:\Users\Admin\AppData\Local\Temp\57205c0b85071b6a7a0702c5482ef80a4851a4461ece27a9d7812668fcb93228.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:940
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1328
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:892
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:616
        • 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:1500
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:596
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1072
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1860
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:964
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:896
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1524
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1692
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1280

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1ebf990e45ab458521c508f40857e8d1

            SHA1

            ec366383f003c892eb45d769bf19212574a9f88e

            SHA256

            17adc592f9f2a0b810e41c38cfbdd155d1e3442d70b23b423e79a851f9ec5271

            SHA512

            5fa0d0e0e8f28d9641a67d82338f6cb7850f4bba94efd1e5675f52b6c7c3e9b33da8327e85039884d8a7977a513930b543aa2c5b12a6548b27a2b0bbc4f1387e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1db47b4eae6577dc43af1b3c4ace4608

            SHA1

            352757ff5e2b218bf186f80436103986e49a7d81

            SHA256

            2dba2e6a11e370b04f8254f84cdaa2f37dfab00ca9af42742285a379741c7b79

            SHA512

            b3df7a86301ba3b3958c39dd031e37fa27291f117b8a4fac0f6b5bd85ec73e70185e520c1702d252071c4aeb37308d82148b14bc0a2c566a9d8fd556e85d2756

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            da169d617c016e3d38183e2849762d69

            SHA1

            b4ef2ef73653dfbb38b354b90b20a17188bad7cd

            SHA256

            26b6a0d0dff7d36bdb15533441f6fbb728bcef2ff7cf29b2f8fc998f40f8bb5f

            SHA512

            8fa1b814a1015ef1b02ae635db23e1db6bdc476b5b327785d10404004b8c133dfd79d979c65795863176bcd19128a848b1757c9472da45b80e270bb8f51ac3cb

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5417f788a4dc567c52097049b4bbd248

            SHA1

            a8c7a257a47d8f0e9e185ee80c47976815b9ef41

            SHA256

            14f49b164e325e4934569a8f81ed84217d0610967a71133fabfb0631fafd33e7

            SHA512

            bdc7042fc2a05b365418cf65216cce4f248452b6ca6bfbd82e477e543b33a367522c95f5b69dd2a4af2f8d1e38e0fa9819a42d9362440f0943dd9e35aea3ae97

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5417f788a4dc567c52097049b4bbd248

            SHA1

            a8c7a257a47d8f0e9e185ee80c47976815b9ef41

            SHA256

            14f49b164e325e4934569a8f81ed84217d0610967a71133fabfb0631fafd33e7

            SHA512

            bdc7042fc2a05b365418cf65216cce4f248452b6ca6bfbd82e477e543b33a367522c95f5b69dd2a4af2f8d1e38e0fa9819a42d9362440f0943dd9e35aea3ae97

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a18a0d91c53c84b18325651c74a4a700

            SHA1

            537066e9143e9aac2bfbfef3019d16bd90f9ed70

            SHA256

            2b7144f3b76588791878cbc6d4348be82a2b234fc83886f1bee14ad5ebe8dc2b

            SHA512

            1209d69559cdd8b759beb8cd7c4895456e1b0cc32b37620c5e5f1a4ebadd6c85d20eb0c521ed15dd3d1651890511972a442ed0894e8f0fea2fcf23a7123de116

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a18a0d91c53c84b18325651c74a4a700

            SHA1

            537066e9143e9aac2bfbfef3019d16bd90f9ed70

            SHA256

            2b7144f3b76588791878cbc6d4348be82a2b234fc83886f1bee14ad5ebe8dc2b

            SHA512

            1209d69559cdd8b759beb8cd7c4895456e1b0cc32b37620c5e5f1a4ebadd6c85d20eb0c521ed15dd3d1651890511972a442ed0894e8f0fea2fcf23a7123de116

          • \Users\Admin\AppData\Local\Temp\nsoAD62.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoAD62.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAD62.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAD62.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoAD62.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1ebf990e45ab458521c508f40857e8d1

            SHA1

            ec366383f003c892eb45d769bf19212574a9f88e

            SHA256

            17adc592f9f2a0b810e41c38cfbdd155d1e3442d70b23b423e79a851f9ec5271

            SHA512

            5fa0d0e0e8f28d9641a67d82338f6cb7850f4bba94efd1e5675f52b6c7c3e9b33da8327e85039884d8a7977a513930b543aa2c5b12a6548b27a2b0bbc4f1387e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1ebf990e45ab458521c508f40857e8d1

            SHA1

            ec366383f003c892eb45d769bf19212574a9f88e

            SHA256

            17adc592f9f2a0b810e41c38cfbdd155d1e3442d70b23b423e79a851f9ec5271

            SHA512

            5fa0d0e0e8f28d9641a67d82338f6cb7850f4bba94efd1e5675f52b6c7c3e9b33da8327e85039884d8a7977a513930b543aa2c5b12a6548b27a2b0bbc4f1387e

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1ebf990e45ab458521c508f40857e8d1

            SHA1

            ec366383f003c892eb45d769bf19212574a9f88e

            SHA256

            17adc592f9f2a0b810e41c38cfbdd155d1e3442d70b23b423e79a851f9ec5271

            SHA512

            5fa0d0e0e8f28d9641a67d82338f6cb7850f4bba94efd1e5675f52b6c7c3e9b33da8327e85039884d8a7977a513930b543aa2c5b12a6548b27a2b0bbc4f1387e

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1db47b4eae6577dc43af1b3c4ace4608

            SHA1

            352757ff5e2b218bf186f80436103986e49a7d81

            SHA256

            2dba2e6a11e370b04f8254f84cdaa2f37dfab00ca9af42742285a379741c7b79

            SHA512

            b3df7a86301ba3b3958c39dd031e37fa27291f117b8a4fac0f6b5bd85ec73e70185e520c1702d252071c4aeb37308d82148b14bc0a2c566a9d8fd556e85d2756

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            1db47b4eae6577dc43af1b3c4ace4608

            SHA1

            352757ff5e2b218bf186f80436103986e49a7d81

            SHA256

            2dba2e6a11e370b04f8254f84cdaa2f37dfab00ca9af42742285a379741c7b79

            SHA512

            b3df7a86301ba3b3958c39dd031e37fa27291f117b8a4fac0f6b5bd85ec73e70185e520c1702d252071c4aeb37308d82148b14bc0a2c566a9d8fd556e85d2756

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            da169d617c016e3d38183e2849762d69

            SHA1

            b4ef2ef73653dfbb38b354b90b20a17188bad7cd

            SHA256

            26b6a0d0dff7d36bdb15533441f6fbb728bcef2ff7cf29b2f8fc998f40f8bb5f

            SHA512

            8fa1b814a1015ef1b02ae635db23e1db6bdc476b5b327785d10404004b8c133dfd79d979c65795863176bcd19128a848b1757c9472da45b80e270bb8f51ac3cb

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5417f788a4dc567c52097049b4bbd248

            SHA1

            a8c7a257a47d8f0e9e185ee80c47976815b9ef41

            SHA256

            14f49b164e325e4934569a8f81ed84217d0610967a71133fabfb0631fafd33e7

            SHA512

            bdc7042fc2a05b365418cf65216cce4f248452b6ca6bfbd82e477e543b33a367522c95f5b69dd2a4af2f8d1e38e0fa9819a42d9362440f0943dd9e35aea3ae97

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            a18a0d91c53c84b18325651c74a4a700

            SHA1

            537066e9143e9aac2bfbfef3019d16bd90f9ed70

            SHA256

            2b7144f3b76588791878cbc6d4348be82a2b234fc83886f1bee14ad5ebe8dc2b

            SHA512

            1209d69559cdd8b759beb8cd7c4895456e1b0cc32b37620c5e5f1a4ebadd6c85d20eb0c521ed15dd3d1651890511972a442ed0894e8f0fea2fcf23a7123de116

          • memory/468-61-0x0000000000000000-mapping.dmp

          • memory/596-69-0x0000000000000000-mapping.dmp

          • memory/616-60-0x0000000000000000-mapping.dmp

          • memory/892-58-0x0000000000000000-mapping.dmp

          • memory/896-85-0x0000000000000000-mapping.dmp

          • memory/940-54-0x0000000074DE1000-0x0000000074DE3000-memory.dmp

            Filesize

            8KB

          • memory/964-80-0x0000000000000000-mapping.dmp

          • memory/1072-75-0x0000000000000000-mapping.dmp

          • memory/1328-57-0x0000000000000000-mapping.dmp

          • memory/1500-63-0x0000000000000000-mapping.dmp

          • memory/1524-86-0x0000000000000000-mapping.dmp

          • memory/1860-79-0x0000000000000000-mapping.dmp