Analysis

  • max time kernel
    210s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:54

General

  • Target

    9f7a5e682d997ac29563c72da7d3c704fb246e7486733bcdc797cc584cf76685.exe

  • Size

    447KB

  • MD5

    7bb1c6af0248b1584750ba5f71347873

  • SHA1

    7ca5d44f8a24b293d0305f7102aa133743c03da6

  • SHA256

    9f7a5e682d997ac29563c72da7d3c704fb246e7486733bcdc797cc584cf76685

  • SHA512

    0eefa79917193bc19b9fba5e185d4cbb213b07f77e75e32c6b4b52d5bc8f348b7cfeec66f80b4519d581fab11e0eb892bc175a007f3e4eecc5a5a0f103a9558e

  • SSDEEP

    12288:7+/+7XWQ0O8AVfNnykP8If/kAl2ySeM5tLElw7Jm:7+G7p0O8UNykEI/l2rdvY

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\9f7a5e682d997ac29563c72da7d3c704fb246e7486733bcdc797cc584cf76685.exe
    "C:\Users\Admin\AppData\Local\Temp\9f7a5e682d997ac29563c72da7d3c704fb246e7486733bcdc797cc584cf76685.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:700
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:644
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1484
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1508
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1788
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:876
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:636
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1516
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1348
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1440
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1644
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1320
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1900
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:872

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dd601ad7c14b98fa86b28aa50ca49282

            SHA1

            984ee92dc045cab1b69cd81068ac83c14d6c8dfa

            SHA256

            8ac2d5e935cb693c1e1a5c4c45fb47945fe6f59a98006360bc8149900a84bf2a

            SHA512

            32055000dad0851c107bc4dd25eaa91d1e477e0ba4ce5e2d757d25e3d87832e35745bd5bd8bfa606d16baca9257de7ad29587bbc9ebd08a4cdac93a1434e1696

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            fa227ee292decd7df3827c1515036d89

            SHA1

            9ae84ebfff1c9399be5d0eb5743d136da01e9223

            SHA256

            8f54218b28dc95d7a6802e408090073d75433e023d4e2485259356e189dba2fe

            SHA512

            65178e878fea230c3aad20a01a530c06e4a456168dbd35d2f86eaf7d9852f897b7253cf5ac91efd34dba48362b323d5c37ddbbf5d7d42a881c5e884ab4efdc1a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            10280af16c9fdde1d37e7b84927546d5

            SHA1

            5460d13c0d04855db7957fe25c25d49dcabb90ce

            SHA256

            e3ec595ecae56314c7d7ddf2ab62267dc8557f7fdc4c1e9c3a511189fbae776f

            SHA512

            a4f33af486027e45485e0a2a1e9037dee2fd8bf8ebe8fb32f3a4eb12d7b4559ff0b4dd00f61c6292a35c17c57c2bad9d607ecd03305e81b8134b6312f2c6eafa

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5bb58288751d761f3546e4997f4e2efc

            SHA1

            cca2f3d581da3f20f7c422785ccdb3f413122b3a

            SHA256

            93ab00053e1f5d0959265da4b284068adfddfa3ca17bf5974d14e4a18cb6965b

            SHA512

            2f537f9e1321cf712de98c8ca0eabd5395ce62da8f7db01bd51fa7c00d782ceaad20e2bd6a34bd98a75e3c9419ed41804f1a6731372d59ebbb514cd575c42755

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5bb58288751d761f3546e4997f4e2efc

            SHA1

            cca2f3d581da3f20f7c422785ccdb3f413122b3a

            SHA256

            93ab00053e1f5d0959265da4b284068adfddfa3ca17bf5974d14e4a18cb6965b

            SHA512

            2f537f9e1321cf712de98c8ca0eabd5395ce62da8f7db01bd51fa7c00d782ceaad20e2bd6a34bd98a75e3c9419ed41804f1a6731372d59ebbb514cd575c42755

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b4a0ed076114146f05df1c0f05d491a3

            SHA1

            345b9a65ccbb5f5ab2f9593ea20e99de62c63cef

            SHA256

            b3068ae545501f6c732ed40d9c6590e2a24250384b7c8cd826ddf3035fcb4749

            SHA512

            79de883769b45cf95aa6554136d748ef03b6bf5f28a8f06768afc98a9699dc7cfe578fb4060a901c72fecf993b041d0cf757a676c5cfb418e5bb9065c81a116c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b4a0ed076114146f05df1c0f05d491a3

            SHA1

            345b9a65ccbb5f5ab2f9593ea20e99de62c63cef

            SHA256

            b3068ae545501f6c732ed40d9c6590e2a24250384b7c8cd826ddf3035fcb4749

            SHA512

            79de883769b45cf95aa6554136d748ef03b6bf5f28a8f06768afc98a9699dc7cfe578fb4060a901c72fecf993b041d0cf757a676c5cfb418e5bb9065c81a116c

          • \Users\Admin\AppData\Local\Temp\nsp2E83.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsp2E83.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsp2E83.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsp2E83.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsp2E83.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dd601ad7c14b98fa86b28aa50ca49282

            SHA1

            984ee92dc045cab1b69cd81068ac83c14d6c8dfa

            SHA256

            8ac2d5e935cb693c1e1a5c4c45fb47945fe6f59a98006360bc8149900a84bf2a

            SHA512

            32055000dad0851c107bc4dd25eaa91d1e477e0ba4ce5e2d757d25e3d87832e35745bd5bd8bfa606d16baca9257de7ad29587bbc9ebd08a4cdac93a1434e1696

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dd601ad7c14b98fa86b28aa50ca49282

            SHA1

            984ee92dc045cab1b69cd81068ac83c14d6c8dfa

            SHA256

            8ac2d5e935cb693c1e1a5c4c45fb47945fe6f59a98006360bc8149900a84bf2a

            SHA512

            32055000dad0851c107bc4dd25eaa91d1e477e0ba4ce5e2d757d25e3d87832e35745bd5bd8bfa606d16baca9257de7ad29587bbc9ebd08a4cdac93a1434e1696

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            dd601ad7c14b98fa86b28aa50ca49282

            SHA1

            984ee92dc045cab1b69cd81068ac83c14d6c8dfa

            SHA256

            8ac2d5e935cb693c1e1a5c4c45fb47945fe6f59a98006360bc8149900a84bf2a

            SHA512

            32055000dad0851c107bc4dd25eaa91d1e477e0ba4ce5e2d757d25e3d87832e35745bd5bd8bfa606d16baca9257de7ad29587bbc9ebd08a4cdac93a1434e1696

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            fa227ee292decd7df3827c1515036d89

            SHA1

            9ae84ebfff1c9399be5d0eb5743d136da01e9223

            SHA256

            8f54218b28dc95d7a6802e408090073d75433e023d4e2485259356e189dba2fe

            SHA512

            65178e878fea230c3aad20a01a530c06e4a456168dbd35d2f86eaf7d9852f897b7253cf5ac91efd34dba48362b323d5c37ddbbf5d7d42a881c5e884ab4efdc1a

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            fa227ee292decd7df3827c1515036d89

            SHA1

            9ae84ebfff1c9399be5d0eb5743d136da01e9223

            SHA256

            8f54218b28dc95d7a6802e408090073d75433e023d4e2485259356e189dba2fe

            SHA512

            65178e878fea230c3aad20a01a530c06e4a456168dbd35d2f86eaf7d9852f897b7253cf5ac91efd34dba48362b323d5c37ddbbf5d7d42a881c5e884ab4efdc1a

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            10280af16c9fdde1d37e7b84927546d5

            SHA1

            5460d13c0d04855db7957fe25c25d49dcabb90ce

            SHA256

            e3ec595ecae56314c7d7ddf2ab62267dc8557f7fdc4c1e9c3a511189fbae776f

            SHA512

            a4f33af486027e45485e0a2a1e9037dee2fd8bf8ebe8fb32f3a4eb12d7b4559ff0b4dd00f61c6292a35c17c57c2bad9d607ecd03305e81b8134b6312f2c6eafa

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            5bb58288751d761f3546e4997f4e2efc

            SHA1

            cca2f3d581da3f20f7c422785ccdb3f413122b3a

            SHA256

            93ab00053e1f5d0959265da4b284068adfddfa3ca17bf5974d14e4a18cb6965b

            SHA512

            2f537f9e1321cf712de98c8ca0eabd5395ce62da8f7db01bd51fa7c00d782ceaad20e2bd6a34bd98a75e3c9419ed41804f1a6731372d59ebbb514cd575c42755

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            b4a0ed076114146f05df1c0f05d491a3

            SHA1

            345b9a65ccbb5f5ab2f9593ea20e99de62c63cef

            SHA256

            b3068ae545501f6c732ed40d9c6590e2a24250384b7c8cd826ddf3035fcb4749

            SHA512

            79de883769b45cf95aa6554136d748ef03b6bf5f28a8f06768afc98a9699dc7cfe578fb4060a901c72fecf993b041d0cf757a676c5cfb418e5bb9065c81a116c

          • memory/636-69-0x0000000000000000-mapping.dmp

          • memory/644-57-0x0000000000000000-mapping.dmp

          • memory/700-54-0x0000000075FF1000-0x0000000075FF3000-memory.dmp

            Filesize

            8KB

          • memory/876-63-0x0000000000000000-mapping.dmp

          • memory/1320-86-0x0000000000000000-mapping.dmp

          • memory/1348-79-0x0000000000000000-mapping.dmp

          • memory/1440-80-0x0000000000000000-mapping.dmp

          • memory/1484-58-0x0000000000000000-mapping.dmp

          • memory/1508-60-0x0000000000000000-mapping.dmp

          • memory/1516-75-0x0000000000000000-mapping.dmp

          • memory/1644-85-0x0000000000000000-mapping.dmp

          • memory/1788-61-0x0000000000000000-mapping.dmp