Analysis

  • max time kernel
    42s
  • 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 10:09

General

  • Target

    e7724d0fca0b3243c8bbb283b0e3422016293779333933354714c0f83de6f7fa.exe

  • Size

    602KB

  • MD5

    9bfb067d7ba38ba0d364b4a2923e002b

  • SHA1

    fb0434c494c4ae909c29642ce581563abe9acda1

  • SHA256

    e7724d0fca0b3243c8bbb283b0e3422016293779333933354714c0f83de6f7fa

  • SHA512

    c75fe62ee1b894e6259908c90aee92d1f7b56d2cc9d14dd2e6466ee2271cf3ea2ee98538f2f6f3bf7df8aedd92bb2302368dfcf30d93ef44819ba417367d0abe

  • SSDEEP

    12288:oIny5DYTjyR0LHbbFeSOYAXRnlqLx/N6q68tKCJTi13lKr1:mUTj6UvtjA2ljLQi1

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\e7724d0fca0b3243c8bbb283b0e3422016293779333933354714c0f83de6f7fa.exe
    "C:\Users\Admin\AppData\Local\Temp\e7724d0fca0b3243c8bbb283b0e3422016293779333933354714c0f83de6f7fa.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:1500
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1488
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:960
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1480
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:628
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1276
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1252
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:608
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1884
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2004
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2012
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1908
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1400
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2024

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e8630de3b04ab24e229160dca322a429

            SHA1

            cb5928b39e2b2b78e783f0f112abcf1ec5b7b915

            SHA256

            1fe0e53d7571c58608a77cd7b82178487f7063c27ccdc1ace66e03fee296b410

            SHA512

            0399c391187cb9e96cf7c6038c269dac93193c55013cfc93b1c1ea4219522d2b16ca58af09d70419770f8685ec86986f007db276a86a27f86b384e77936cd196

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            19c619fd9baa64173e31cda7629efc8a

            SHA1

            f3a66de3a3f076999fa2209bf5b01b4965e9c233

            SHA256

            ebb23384a6124b4bd50c705f0a608fd461e0c6c66c154d34c7617ff2f179d7b3

            SHA512

            5105c3f329d9b97ae8c39d76d0b7837411c3baa7855747e59a3895e396fdced590e7a44408535c427ef6956b0acc2553cf1b4af73e2125b34ef6c66743980e75

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7cd4734f8a0608b501d0c9ecd0c7475b

            SHA1

            5e3b90f738196c8cb4f973d5a2b8de2a6e012ccf

            SHA256

            de443649c0c542d2c34b1a0447524ca4cbf3dfda118371b98bc6388af0530477

            SHA512

            6a1b1312a8172220bfffeee1e38888ee2f96b2b4b4543b8d15bde4599dcb8c38edcb208298f000e134286b02b09b72728a38d87012181c76b38668fcc72038f6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e4a703daeeccedf12c147bc3b616aaa0

            SHA1

            8bb3a0f9b66b155a06fdb2891672dbbe943f55a7

            SHA256

            6ad461320356ba8c7741ff7f7ec17e260260d8ddc4af2d35bd7e08ab1abc3da3

            SHA512

            d35767545f737b0052f6709e58cd27cfc0daef76fda5c0a82a0297955ac6613baed9fc256b102a1f94859c8710d35193f1b864e374de44091fb0e0a8a036460e

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e4a703daeeccedf12c147bc3b616aaa0

            SHA1

            8bb3a0f9b66b155a06fdb2891672dbbe943f55a7

            SHA256

            6ad461320356ba8c7741ff7f7ec17e260260d8ddc4af2d35bd7e08ab1abc3da3

            SHA512

            d35767545f737b0052f6709e58cd27cfc0daef76fda5c0a82a0297955ac6613baed9fc256b102a1f94859c8710d35193f1b864e374de44091fb0e0a8a036460e

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            86a898ef93ed318e76a622fcc2f9b6d8

            SHA1

            2843017ea776513c42ffdaea818967e530593d48

            SHA256

            0e0d28ff5562a76685128572dbdd21437f3e62147d583eed40837ce7ad3f25ca

            SHA512

            78b344d55f7d113e462faf9e68ab9ae339b059de16a3482b4cdd4dea54a510d047207c86b47c1816272085983760ad392cb4db991bce6e2de48d0ee2330a8bf3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            86a898ef93ed318e76a622fcc2f9b6d8

            SHA1

            2843017ea776513c42ffdaea818967e530593d48

            SHA256

            0e0d28ff5562a76685128572dbdd21437f3e62147d583eed40837ce7ad3f25ca

            SHA512

            78b344d55f7d113e462faf9e68ab9ae339b059de16a3482b4cdd4dea54a510d047207c86b47c1816272085983760ad392cb4db991bce6e2de48d0ee2330a8bf3

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsi512.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e8630de3b04ab24e229160dca322a429

            SHA1

            cb5928b39e2b2b78e783f0f112abcf1ec5b7b915

            SHA256

            1fe0e53d7571c58608a77cd7b82178487f7063c27ccdc1ace66e03fee296b410

            SHA512

            0399c391187cb9e96cf7c6038c269dac93193c55013cfc93b1c1ea4219522d2b16ca58af09d70419770f8685ec86986f007db276a86a27f86b384e77936cd196

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e8630de3b04ab24e229160dca322a429

            SHA1

            cb5928b39e2b2b78e783f0f112abcf1ec5b7b915

            SHA256

            1fe0e53d7571c58608a77cd7b82178487f7063c27ccdc1ace66e03fee296b410

            SHA512

            0399c391187cb9e96cf7c6038c269dac93193c55013cfc93b1c1ea4219522d2b16ca58af09d70419770f8685ec86986f007db276a86a27f86b384e77936cd196

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            e8630de3b04ab24e229160dca322a429

            SHA1

            cb5928b39e2b2b78e783f0f112abcf1ec5b7b915

            SHA256

            1fe0e53d7571c58608a77cd7b82178487f7063c27ccdc1ace66e03fee296b410

            SHA512

            0399c391187cb9e96cf7c6038c269dac93193c55013cfc93b1c1ea4219522d2b16ca58af09d70419770f8685ec86986f007db276a86a27f86b384e77936cd196

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            19c619fd9baa64173e31cda7629efc8a

            SHA1

            f3a66de3a3f076999fa2209bf5b01b4965e9c233

            SHA256

            ebb23384a6124b4bd50c705f0a608fd461e0c6c66c154d34c7617ff2f179d7b3

            SHA512

            5105c3f329d9b97ae8c39d76d0b7837411c3baa7855747e59a3895e396fdced590e7a44408535c427ef6956b0acc2553cf1b4af73e2125b34ef6c66743980e75

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            19c619fd9baa64173e31cda7629efc8a

            SHA1

            f3a66de3a3f076999fa2209bf5b01b4965e9c233

            SHA256

            ebb23384a6124b4bd50c705f0a608fd461e0c6c66c154d34c7617ff2f179d7b3

            SHA512

            5105c3f329d9b97ae8c39d76d0b7837411c3baa7855747e59a3895e396fdced590e7a44408535c427ef6956b0acc2553cf1b4af73e2125b34ef6c66743980e75

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7cd4734f8a0608b501d0c9ecd0c7475b

            SHA1

            5e3b90f738196c8cb4f973d5a2b8de2a6e012ccf

            SHA256

            de443649c0c542d2c34b1a0447524ca4cbf3dfda118371b98bc6388af0530477

            SHA512

            6a1b1312a8172220bfffeee1e38888ee2f96b2b4b4543b8d15bde4599dcb8c38edcb208298f000e134286b02b09b72728a38d87012181c76b38668fcc72038f6

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            e4a703daeeccedf12c147bc3b616aaa0

            SHA1

            8bb3a0f9b66b155a06fdb2891672dbbe943f55a7

            SHA256

            6ad461320356ba8c7741ff7f7ec17e260260d8ddc4af2d35bd7e08ab1abc3da3

            SHA512

            d35767545f737b0052f6709e58cd27cfc0daef76fda5c0a82a0297955ac6613baed9fc256b102a1f94859c8710d35193f1b864e374de44091fb0e0a8a036460e

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            86a898ef93ed318e76a622fcc2f9b6d8

            SHA1

            2843017ea776513c42ffdaea818967e530593d48

            SHA256

            0e0d28ff5562a76685128572dbdd21437f3e62147d583eed40837ce7ad3f25ca

            SHA512

            78b344d55f7d113e462faf9e68ab9ae339b059de16a3482b4cdd4dea54a510d047207c86b47c1816272085983760ad392cb4db991bce6e2de48d0ee2330a8bf3

          • memory/608-76-0x0000000000000000-mapping.dmp

          • memory/628-62-0x0000000000000000-mapping.dmp

          • memory/960-59-0x0000000000000000-mapping.dmp

          • memory/1252-70-0x0000000000000000-mapping.dmp

          • memory/1276-64-0x0000000000000000-mapping.dmp

          • memory/1480-61-0x0000000000000000-mapping.dmp

          • memory/1488-58-0x0000000000000000-mapping.dmp

          • memory/1500-54-0x0000000075B41000-0x0000000075B43000-memory.dmp

            Filesize

            8KB

          • memory/1500-55-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1500-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1884-80-0x0000000000000000-mapping.dmp

          • memory/1908-87-0x0000000000000000-mapping.dmp

          • memory/2004-81-0x0000000000000000-mapping.dmp

          • memory/2012-86-0x0000000000000000-mapping.dmp