Analysis

  • max time kernel
    43s
  • 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 10:51

General

  • Target

    dbd47c860d2a8885ec68071b307e01a9bd3e6d95ecc205277a1742fe21351fb2.exe

  • Size

    445KB

  • MD5

    eb918f1e14a2845cc23769e62c447628

  • SHA1

    19c11e8109c3fba7652df003e53245d51622be0b

  • SHA256

    dbd47c860d2a8885ec68071b307e01a9bd3e6d95ecc205277a1742fe21351fb2

  • SHA512

    25664a18438bddabd19f33bd51f811a9a57c58ddb6f0ab708c17bf0fc534b2d9f591c1164c86aee7b0f8694b5f854c490433f5894bb00af6193e3136b45f0b20

  • SSDEEP

    12288:176JNThmvZNl6mS0YvPmVz9zmW9pL4qa/6pwYqrM:174mAAYG5sW9l4qEjYqw

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\dbd47c860d2a8885ec68071b307e01a9bd3e6d95ecc205277a1742fe21351fb2.exe
    "C:\Users\Admin\AppData\Local\Temp\dbd47c860d2a8885ec68071b307e01a9bd3e6d95ecc205277a1742fe21351fb2.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:560
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1628
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1676
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1380
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1620
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1640
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1700
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:392
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1516
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1172
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1540
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:772
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1764
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:536

          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

            b825421432802585f9ff773ee6f0905c

            SHA1

            29028c26fcf936a6ce7836a333c92d55d4ed45da

            SHA256

            d356f52c2e41141b6fb5c78ca1e2bcd129fa6d2a3346f4ac68395e3c67d19425

            SHA512

            dc1c3daaa2f2040513c6ff53f850c8eab865b779af26237617a6b96e2ddf935bd3407c4c596314c0774339497d9342ffebda9ad1268a4c3a7bd0bc2f6a1680f6

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

            241KB

            MD5

            3c14c6f070c7bb1ccf78fee39b5d4c3e

            SHA1

            4377d9ad7d2a7d09decf271da11c1ed35aedc7db

            SHA256

            4da484d9b1f631947344ca1d12d63ca29a07a3de3e117e94ad3c51fe0808762c

            SHA512

            552a175f4e0b6e35152bf22f48ca7305f4d56a57b0202ece3f13f242e4967ef1b5576c64c1fd7b36fb45c0ff4078ae96a457186f5895d973f95cfb811d63d796

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

            108KB

            MD5

            7a650eb893a322abc7eadf81dc4e4c3c

            SHA1

            50596f43a7bf3feaaffdf8df37f5e7da60bd903c

            SHA256

            688c95bf3c89ba42702e997fc0a0afb4e6cf7905cbf4ac93d11dcb68cffd8b76

            SHA512

            036dbda67599f839ab0853bbcc95b5550759364607aadd05a6c1aacf27d35ecbd92aa5b3d19c75cd1c7186b0314a20173008e7ba97608ec83c541dbf70188dc5

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

            176KB

            MD5

            f8d6d9d7327780b7fe36d98dd6e0fef7

            SHA1

            d055f9b27f374e6c50e05864bfbfa78b5c939583

            SHA256

            f324a03d9fc95f4629fbdc2c83cd327081e4c2d5f0935bb04b653950c219edb0

            SHA512

            924622a9adc18440c4f77ff74e9cd6b214bc66ccc9047c9a939d6f63f45675522c68faedbecb6e6e80067e5dc50bcedb14f09be8565059af242680e8faafd49c

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

            176KB

            MD5

            f8d6d9d7327780b7fe36d98dd6e0fef7

            SHA1

            d055f9b27f374e6c50e05864bfbfa78b5c939583

            SHA256

            f324a03d9fc95f4629fbdc2c83cd327081e4c2d5f0935bb04b653950c219edb0

            SHA512

            924622a9adc18440c4f77ff74e9cd6b214bc66ccc9047c9a939d6f63f45675522c68faedbecb6e6e80067e5dc50bcedb14f09be8565059af242680e8faafd49c

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

            159KB

            MD5

            e74d8c38376af7a68954b5c0b70b3605

            SHA1

            6214ca90cd3b775ca9b388d6a01cad2afe94c492

            SHA256

            3668d774269496c7b061bcfa27b3e1e068a450b61a14dd9701d3ff60c5e791e5

            SHA512

            cfb26020a8ef271609fc967c98513bbe86385ff569a953699971c147e6e524bf48de240aa2b0ae90c5db1043d216e6c3151ee4c09260a53e8292fa678f282665

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

            159KB

            MD5

            e74d8c38376af7a68954b5c0b70b3605

            SHA1

            6214ca90cd3b775ca9b388d6a01cad2afe94c492

            SHA256

            3668d774269496c7b061bcfa27b3e1e068a450b61a14dd9701d3ff60c5e791e5

            SHA512

            cfb26020a8ef271609fc967c98513bbe86385ff569a953699971c147e6e524bf48de240aa2b0ae90c5db1043d216e6c3151ee4c09260a53e8292fa678f282665

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsoF644.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            b825421432802585f9ff773ee6f0905c

            SHA1

            29028c26fcf936a6ce7836a333c92d55d4ed45da

            SHA256

            d356f52c2e41141b6fb5c78ca1e2bcd129fa6d2a3346f4ac68395e3c67d19425

            SHA512

            dc1c3daaa2f2040513c6ff53f850c8eab865b779af26237617a6b96e2ddf935bd3407c4c596314c0774339497d9342ffebda9ad1268a4c3a7bd0bc2f6a1680f6

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            b825421432802585f9ff773ee6f0905c

            SHA1

            29028c26fcf936a6ce7836a333c92d55d4ed45da

            SHA256

            d356f52c2e41141b6fb5c78ca1e2bcd129fa6d2a3346f4ac68395e3c67d19425

            SHA512

            dc1c3daaa2f2040513c6ff53f850c8eab865b779af26237617a6b96e2ddf935bd3407c4c596314c0774339497d9342ffebda9ad1268a4c3a7bd0bc2f6a1680f6

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            b825421432802585f9ff773ee6f0905c

            SHA1

            29028c26fcf936a6ce7836a333c92d55d4ed45da

            SHA256

            d356f52c2e41141b6fb5c78ca1e2bcd129fa6d2a3346f4ac68395e3c67d19425

            SHA512

            dc1c3daaa2f2040513c6ff53f850c8eab865b779af26237617a6b96e2ddf935bd3407c4c596314c0774339497d9342ffebda9ad1268a4c3a7bd0bc2f6a1680f6

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            3c14c6f070c7bb1ccf78fee39b5d4c3e

            SHA1

            4377d9ad7d2a7d09decf271da11c1ed35aedc7db

            SHA256

            4da484d9b1f631947344ca1d12d63ca29a07a3de3e117e94ad3c51fe0808762c

            SHA512

            552a175f4e0b6e35152bf22f48ca7305f4d56a57b0202ece3f13f242e4967ef1b5576c64c1fd7b36fb45c0ff4078ae96a457186f5895d973f95cfb811d63d796

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            3c14c6f070c7bb1ccf78fee39b5d4c3e

            SHA1

            4377d9ad7d2a7d09decf271da11c1ed35aedc7db

            SHA256

            4da484d9b1f631947344ca1d12d63ca29a07a3de3e117e94ad3c51fe0808762c

            SHA512

            552a175f4e0b6e35152bf22f48ca7305f4d56a57b0202ece3f13f242e4967ef1b5576c64c1fd7b36fb45c0ff4078ae96a457186f5895d973f95cfb811d63d796

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            7a650eb893a322abc7eadf81dc4e4c3c

            SHA1

            50596f43a7bf3feaaffdf8df37f5e7da60bd903c

            SHA256

            688c95bf3c89ba42702e997fc0a0afb4e6cf7905cbf4ac93d11dcb68cffd8b76

            SHA512

            036dbda67599f839ab0853bbcc95b5550759364607aadd05a6c1aacf27d35ecbd92aa5b3d19c75cd1c7186b0314a20173008e7ba97608ec83c541dbf70188dc5

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            f8d6d9d7327780b7fe36d98dd6e0fef7

            SHA1

            d055f9b27f374e6c50e05864bfbfa78b5c939583

            SHA256

            f324a03d9fc95f4629fbdc2c83cd327081e4c2d5f0935bb04b653950c219edb0

            SHA512

            924622a9adc18440c4f77ff74e9cd6b214bc66ccc9047c9a939d6f63f45675522c68faedbecb6e6e80067e5dc50bcedb14f09be8565059af242680e8faafd49c

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            e74d8c38376af7a68954b5c0b70b3605

            SHA1

            6214ca90cd3b775ca9b388d6a01cad2afe94c492

            SHA256

            3668d774269496c7b061bcfa27b3e1e068a450b61a14dd9701d3ff60c5e791e5

            SHA512

            cfb26020a8ef271609fc967c98513bbe86385ff569a953699971c147e6e524bf48de240aa2b0ae90c5db1043d216e6c3151ee4c09260a53e8292fa678f282665

          • memory/392-75-0x0000000000000000-mapping.dmp
          • memory/560-54-0x0000000076041000-0x0000000076043000-memory.dmp
            Filesize

            8KB

          • memory/772-86-0x0000000000000000-mapping.dmp
          • memory/1172-80-0x0000000000000000-mapping.dmp
          • memory/1380-60-0x0000000000000000-mapping.dmp
          • memory/1516-79-0x0000000000000000-mapping.dmp
          • memory/1540-85-0x0000000000000000-mapping.dmp
          • memory/1620-61-0x0000000000000000-mapping.dmp
          • memory/1628-57-0x0000000000000000-mapping.dmp
          • memory/1640-63-0x0000000000000000-mapping.dmp
          • memory/1676-58-0x0000000000000000-mapping.dmp
          • memory/1700-69-0x0000000000000000-mapping.dmp