Analysis

  • max time kernel
    33s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:33

General

  • Target

    1562397b589a1951f70468f3d8970cfc435cf8d18ef491a99d3da926b2949508.exe

  • Size

    602KB

  • MD5

    d7b9e544f8c395305c83c1727839cd7a

  • SHA1

    40eea9f21c58b145910ed61d044d42162c618132

  • SHA256

    1562397b589a1951f70468f3d8970cfc435cf8d18ef491a99d3da926b2949508

  • SHA512

    4903d274ffac8e052bbd4a9d90f551c4799d01a6a9a29903c1e532f2c73b7e6ebed8c365d5ee17dc6982aa77be3cd0f310a03b6762984bada61eea1907772321

  • SSDEEP

    12288:DIny5DYTj5h72Mzr5+gbHHr8grsT1Bqwklk:LUTj5Nzr5p0JA7

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\1562397b589a1951f70468f3d8970cfc435cf8d18ef491a99d3da926b2949508.exe
    "C:\Users\Admin\AppData\Local\Temp\1562397b589a1951f70468f3d8970cfc435cf8d18ef491a99d3da926b2949508.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:1140
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2036
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1768
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:2008
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:2032
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1208
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1172
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1816
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:672
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1656
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:692
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1548
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1356
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1644

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            56e79cca7a127fa74e1ed4be516b76d0

            SHA1

            57091a35066fa0285154f9f27c7816565a909b55

            SHA256

            60c0a9c9888016663ffa4f0e53a267d183d87ec606d71e2c05561eaa0b331bbb

            SHA512

            a1fa7f11eee5f20ee624f016da640052ef397ebd1483722d061c8a9fe3e5f6b7cbd7e258a9b522dc50acc63444e7f54e3818c0b44431324565f7e77da0151020

          • C:\Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e12954a44bd625d6259f3a3989aa9beb

            SHA1

            3ee91cf4d0ea8468333ef56b720a2b4ca9bdd704

            SHA256

            4d7846f85461537474b12aa83d4b72bbb2f1bfc24aa60abae66be43970d7f6c4

            SHA512

            fe61252111f52e6f9ae688c14e57fc9b552b7c8aeb763d082a0025fe7c287def105425881c604736a8bad166d1bd8ab27416afd102f8fd7123f0d44d89f86013

          • C:\Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5c404cec254c12299650ac8885829268

            SHA1

            c6e3b43db09ab53b21c0f4d5c616917a7979b08f

            SHA256

            de8da2d1941a8c07b2d6fcb34d3f474ffdcc1c50324e3dfd8be21d9c73f8f995

            SHA512

            683fefa7d6252472d7b68c8d8b6d090a13ead0e00b6d363a5e8c0321074c3411dcdd0a2f2c7ece21223248af6cfc837c0690ba4f5f056bf0ac8242a753670842

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            0fbff966358f89125d81b15e84e9d1ac

            SHA1

            8c287ee3591ef0c4f3b3798474645f8b0b25d80b

            SHA256

            89dce8533f3b14c19f563f861bcb74e8e4f3da7a73af1283411b8e5f1350fc1c

            SHA512

            126313a13b544c1a2bd246337a08967701713b39fff9ccf4873f189301181f7c3f5a78ea8fe0d96eddda9f77142cac5c65216572f8532989f2468b484c59722e

          • C:\Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            0fbff966358f89125d81b15e84e9d1ac

            SHA1

            8c287ee3591ef0c4f3b3798474645f8b0b25d80b

            SHA256

            89dce8533f3b14c19f563f861bcb74e8e4f3da7a73af1283411b8e5f1350fc1c

            SHA512

            126313a13b544c1a2bd246337a08967701713b39fff9ccf4873f189301181f7c3f5a78ea8fe0d96eddda9f77142cac5c65216572f8532989f2468b484c59722e

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            6961c56c0b48e5027f737abafc977a41

            SHA1

            3b9e0c043411887f8d1a15ace38a2054d6332fc6

            SHA256

            a6678fa5cfa4a4fc41dc2cdfb65b74ff4450912f83c3c5d0c89924a78c088246

            SHA512

            a83aa9911ae8a468f97604aa41b37e7f26e93a5352915535f6bbbde07d01f8b4ecb7f8b088cdc3bbbd2f66bc3a0eb23bda63212ec512fe48add3a8c46f0ab0e2

          • C:\Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            6961c56c0b48e5027f737abafc977a41

            SHA1

            3b9e0c043411887f8d1a15ace38a2054d6332fc6

            SHA256

            a6678fa5cfa4a4fc41dc2cdfb65b74ff4450912f83c3c5d0c89924a78c088246

            SHA512

            a83aa9911ae8a468f97604aa41b37e7f26e93a5352915535f6bbbde07d01f8b4ecb7f8b088cdc3bbbd2f66bc3a0eb23bda63212ec512fe48add3a8c46f0ab0e2

          • \Users\Admin\AppData\Local\Temp\nsy3324.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy3324.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3324.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3324.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy3324.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            56e79cca7a127fa74e1ed4be516b76d0

            SHA1

            57091a35066fa0285154f9f27c7816565a909b55

            SHA256

            60c0a9c9888016663ffa4f0e53a267d183d87ec606d71e2c05561eaa0b331bbb

            SHA512

            a1fa7f11eee5f20ee624f016da640052ef397ebd1483722d061c8a9fe3e5f6b7cbd7e258a9b522dc50acc63444e7f54e3818c0b44431324565f7e77da0151020

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            56e79cca7a127fa74e1ed4be516b76d0

            SHA1

            57091a35066fa0285154f9f27c7816565a909b55

            SHA256

            60c0a9c9888016663ffa4f0e53a267d183d87ec606d71e2c05561eaa0b331bbb

            SHA512

            a1fa7f11eee5f20ee624f016da640052ef397ebd1483722d061c8a9fe3e5f6b7cbd7e258a9b522dc50acc63444e7f54e3818c0b44431324565f7e77da0151020

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            56e79cca7a127fa74e1ed4be516b76d0

            SHA1

            57091a35066fa0285154f9f27c7816565a909b55

            SHA256

            60c0a9c9888016663ffa4f0e53a267d183d87ec606d71e2c05561eaa0b331bbb

            SHA512

            a1fa7f11eee5f20ee624f016da640052ef397ebd1483722d061c8a9fe3e5f6b7cbd7e258a9b522dc50acc63444e7f54e3818c0b44431324565f7e77da0151020

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e12954a44bd625d6259f3a3989aa9beb

            SHA1

            3ee91cf4d0ea8468333ef56b720a2b4ca9bdd704

            SHA256

            4d7846f85461537474b12aa83d4b72bbb2f1bfc24aa60abae66be43970d7f6c4

            SHA512

            fe61252111f52e6f9ae688c14e57fc9b552b7c8aeb763d082a0025fe7c287def105425881c604736a8bad166d1bd8ab27416afd102f8fd7123f0d44d89f86013

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            e12954a44bd625d6259f3a3989aa9beb

            SHA1

            3ee91cf4d0ea8468333ef56b720a2b4ca9bdd704

            SHA256

            4d7846f85461537474b12aa83d4b72bbb2f1bfc24aa60abae66be43970d7f6c4

            SHA512

            fe61252111f52e6f9ae688c14e57fc9b552b7c8aeb763d082a0025fe7c287def105425881c604736a8bad166d1bd8ab27416afd102f8fd7123f0d44d89f86013

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5c404cec254c12299650ac8885829268

            SHA1

            c6e3b43db09ab53b21c0f4d5c616917a7979b08f

            SHA256

            de8da2d1941a8c07b2d6fcb34d3f474ffdcc1c50324e3dfd8be21d9c73f8f995

            SHA512

            683fefa7d6252472d7b68c8d8b6d090a13ead0e00b6d363a5e8c0321074c3411dcdd0a2f2c7ece21223248af6cfc837c0690ba4f5f056bf0ac8242a753670842

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            0fbff966358f89125d81b15e84e9d1ac

            SHA1

            8c287ee3591ef0c4f3b3798474645f8b0b25d80b

            SHA256

            89dce8533f3b14c19f563f861bcb74e8e4f3da7a73af1283411b8e5f1350fc1c

            SHA512

            126313a13b544c1a2bd246337a08967701713b39fff9ccf4873f189301181f7c3f5a78ea8fe0d96eddda9f77142cac5c65216572f8532989f2468b484c59722e

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            6961c56c0b48e5027f737abafc977a41

            SHA1

            3b9e0c043411887f8d1a15ace38a2054d6332fc6

            SHA256

            a6678fa5cfa4a4fc41dc2cdfb65b74ff4450912f83c3c5d0c89924a78c088246

            SHA512

            a83aa9911ae8a468f97604aa41b37e7f26e93a5352915535f6bbbde07d01f8b4ecb7f8b088cdc3bbbd2f66bc3a0eb23bda63212ec512fe48add3a8c46f0ab0e2

          • memory/672-80-0x0000000000000000-mapping.dmp
          • memory/692-86-0x0000000000000000-mapping.dmp
          • memory/1140-54-0x0000000075F51000-0x0000000075F53000-memory.dmp
            Filesize

            8KB

          • memory/1140-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1140-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1172-70-0x0000000000000000-mapping.dmp
          • memory/1208-64-0x0000000000000000-mapping.dmp
          • memory/1548-87-0x0000000000000000-mapping.dmp
          • memory/1656-81-0x0000000000000000-mapping.dmp
          • memory/1768-58-0x0000000000000000-mapping.dmp
          • memory/1816-76-0x0000000000000000-mapping.dmp
          • memory/2008-61-0x0000000000000000-mapping.dmp
          • memory/2032-62-0x0000000000000000-mapping.dmp
          • memory/2036-57-0x0000000000000000-mapping.dmp