Analysis

  • max time kernel
    41s
  • 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 10:10

General

  • Target

    d956804f43f24cde977090383313c2aa5513964d8f5d09b9d39adfc5c6b22eae.exe

  • Size

    602KB

  • MD5

    74a6fa31689f45201aeee369ebf60ec1

  • SHA1

    898826023183a811b32afe710869d9dc09a3bd83

  • SHA256

    d956804f43f24cde977090383313c2aa5513964d8f5d09b9d39adfc5c6b22eae

  • SHA512

    242c348d0f234b8c39fe0e33906719117601336d92b5db58606e5a9eedc9cc917ee2869b798f804abc8b5c29952f659656c0fdff95600f4e6a6978b94864168a

  • SSDEEP

    12288:9Iny5DYT72LG+7snvHiSNNXHy0YaDF/YLfmq5ZuvUDyCxxvi:pUT7lniEcbah/yp5wvUDpx

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\d956804f43f24cde977090383313c2aa5513964d8f5d09b9d39adfc5c6b22eae.exe
    "C:\Users\Admin\AppData\Local\Temp\d956804f43f24cde977090383313c2aa5513964d8f5d09b9d39adfc5c6b22eae.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:1828
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1508
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1496
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1932
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1632
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1708
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:108
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:824
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1548
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1844
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1792
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2020
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1756
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1812

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5b4afdf090d195a92f7dc2dc2a228688

            SHA1

            6b033161ceeafc005e8c5e067bb68be25debca7c

            SHA256

            4095b66264d83a28537778d5dd3d6df02b166191203bae3f9d27eca5de4298db

            SHA512

            85c3b66b9d9b07eab462d8bb37a4b830a7c84d30eccafed6ef5644a8cd5c4a3616b8c7a1183cf45af284536e56b9612cd543426985988115392ee4a02408922b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5f73d04b1dcff6c6f09e1e4a357ad240

            SHA1

            55a6c54316a299b2a0554b05f823217d9ba91684

            SHA256

            9b3b6050802a5f6173182c96b55d98a85aff0e67d674ce7e1dc059793398df40

            SHA512

            c075ae871bcf3c9dc4bfabe07a2450fd3498a51d85c689d52593410b22c48d341ccb59c6338998f9708481e6fed39c5c404a8f0cac9c970c4a7db792d0e5bd7a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8d2c834acf98a015e2166daecfdaabb0

            SHA1

            dd81210f5552e68a671ca88516e63ab4175ad51d

            SHA256

            e5f83b2633502250cefe00c094f3c99caceb33a0c379c4aa39ca8c5d49446971

            SHA512

            31b86055d3d34f466665e4596d62a4e747610a807aafa98fb7adce6128bcc692fc7208527a4c2ea28f7a322b4440d0ac79a83dd819453aac888f1b94ca3e0d12

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c7f639c7f3c0dfd8eb39e3ac6cec8409

            SHA1

            bb72b972ae25e7b366111185ab4386079206327c

            SHA256

            5f8df3defc42dbc2aa1dcee48c5023d0cf14aceaf6c3e8e62f304a59ab5bd911

            SHA512

            fa3dcd3de43ffeaf911775373ac7e293d149b0d8541421ce7eac5709246ed0e249ae08bf4cbd3c0945eea977068736701fcc8262b37327bf6db814b1a8b44656

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c7f639c7f3c0dfd8eb39e3ac6cec8409

            SHA1

            bb72b972ae25e7b366111185ab4386079206327c

            SHA256

            5f8df3defc42dbc2aa1dcee48c5023d0cf14aceaf6c3e8e62f304a59ab5bd911

            SHA512

            fa3dcd3de43ffeaf911775373ac7e293d149b0d8541421ce7eac5709246ed0e249ae08bf4cbd3c0945eea977068736701fcc8262b37327bf6db814b1a8b44656

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ea564c71ceea9c0a57bb6d029d8a83f0

            SHA1

            a88fa334ed9b247dcd419757d39caf3b64b6539f

            SHA256

            bdd2139da8c675037ffb2c317672b80bfe1f7d985f3fb4401413a0d6a406f35d

            SHA512

            071c383358af1f6e4b4f6df5a43e345a41a7730487868c2da816afc4fda5ca171ce84e9ca879a7cb87fbd99feed2c261265985daaefca07581d8349f7edaf1cb

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ea564c71ceea9c0a57bb6d029d8a83f0

            SHA1

            a88fa334ed9b247dcd419757d39caf3b64b6539f

            SHA256

            bdd2139da8c675037ffb2c317672b80bfe1f7d985f3fb4401413a0d6a406f35d

            SHA512

            071c383358af1f6e4b4f6df5a43e345a41a7730487868c2da816afc4fda5ca171ce84e9ca879a7cb87fbd99feed2c261265985daaefca07581d8349f7edaf1cb

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nseEB9A.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5b4afdf090d195a92f7dc2dc2a228688

            SHA1

            6b033161ceeafc005e8c5e067bb68be25debca7c

            SHA256

            4095b66264d83a28537778d5dd3d6df02b166191203bae3f9d27eca5de4298db

            SHA512

            85c3b66b9d9b07eab462d8bb37a4b830a7c84d30eccafed6ef5644a8cd5c4a3616b8c7a1183cf45af284536e56b9612cd543426985988115392ee4a02408922b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5b4afdf090d195a92f7dc2dc2a228688

            SHA1

            6b033161ceeafc005e8c5e067bb68be25debca7c

            SHA256

            4095b66264d83a28537778d5dd3d6df02b166191203bae3f9d27eca5de4298db

            SHA512

            85c3b66b9d9b07eab462d8bb37a4b830a7c84d30eccafed6ef5644a8cd5c4a3616b8c7a1183cf45af284536e56b9612cd543426985988115392ee4a02408922b

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            5b4afdf090d195a92f7dc2dc2a228688

            SHA1

            6b033161ceeafc005e8c5e067bb68be25debca7c

            SHA256

            4095b66264d83a28537778d5dd3d6df02b166191203bae3f9d27eca5de4298db

            SHA512

            85c3b66b9d9b07eab462d8bb37a4b830a7c84d30eccafed6ef5644a8cd5c4a3616b8c7a1183cf45af284536e56b9612cd543426985988115392ee4a02408922b

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5f73d04b1dcff6c6f09e1e4a357ad240

            SHA1

            55a6c54316a299b2a0554b05f823217d9ba91684

            SHA256

            9b3b6050802a5f6173182c96b55d98a85aff0e67d674ce7e1dc059793398df40

            SHA512

            c075ae871bcf3c9dc4bfabe07a2450fd3498a51d85c689d52593410b22c48d341ccb59c6338998f9708481e6fed39c5c404a8f0cac9c970c4a7db792d0e5bd7a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            5f73d04b1dcff6c6f09e1e4a357ad240

            SHA1

            55a6c54316a299b2a0554b05f823217d9ba91684

            SHA256

            9b3b6050802a5f6173182c96b55d98a85aff0e67d674ce7e1dc059793398df40

            SHA512

            c075ae871bcf3c9dc4bfabe07a2450fd3498a51d85c689d52593410b22c48d341ccb59c6338998f9708481e6fed39c5c404a8f0cac9c970c4a7db792d0e5bd7a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8d2c834acf98a015e2166daecfdaabb0

            SHA1

            dd81210f5552e68a671ca88516e63ab4175ad51d

            SHA256

            e5f83b2633502250cefe00c094f3c99caceb33a0c379c4aa39ca8c5d49446971

            SHA512

            31b86055d3d34f466665e4596d62a4e747610a807aafa98fb7adce6128bcc692fc7208527a4c2ea28f7a322b4440d0ac79a83dd819453aac888f1b94ca3e0d12

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            c7f639c7f3c0dfd8eb39e3ac6cec8409

            SHA1

            bb72b972ae25e7b366111185ab4386079206327c

            SHA256

            5f8df3defc42dbc2aa1dcee48c5023d0cf14aceaf6c3e8e62f304a59ab5bd911

            SHA512

            fa3dcd3de43ffeaf911775373ac7e293d149b0d8541421ce7eac5709246ed0e249ae08bf4cbd3c0945eea977068736701fcc8262b37327bf6db814b1a8b44656

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            ea564c71ceea9c0a57bb6d029d8a83f0

            SHA1

            a88fa334ed9b247dcd419757d39caf3b64b6539f

            SHA256

            bdd2139da8c675037ffb2c317672b80bfe1f7d985f3fb4401413a0d6a406f35d

            SHA512

            071c383358af1f6e4b4f6df5a43e345a41a7730487868c2da816afc4fda5ca171ce84e9ca879a7cb87fbd99feed2c261265985daaefca07581d8349f7edaf1cb

          • memory/108-71-0x0000000000000000-mapping.dmp

          • memory/824-77-0x0000000000000000-mapping.dmp

          • memory/1496-59-0x0000000000000000-mapping.dmp

          • memory/1508-58-0x0000000000000000-mapping.dmp

          • memory/1548-81-0x0000000000000000-mapping.dmp

          • memory/1632-62-0x0000000000000000-mapping.dmp

          • memory/1708-64-0x0000000000000000-mapping.dmp

          • memory/1792-87-0x0000000000000000-mapping.dmp

          • memory/1828-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1828-54-0x0000000075611000-0x0000000075613000-memory.dmp

            Filesize

            8KB

          • memory/1828-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1828-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1844-82-0x0000000000000000-mapping.dmp

          • memory/1932-61-0x0000000000000000-mapping.dmp

          • memory/2020-88-0x0000000000000000-mapping.dmp