Analysis

  • max time kernel
    46s
  • 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 10:13

General

  • Target

    c275f1abe04b02ad1e4b786492d45252548fdcaa3916dddbe36986a7ac0c6163.exe

  • Size

    602KB

  • MD5

    793fd346bd072e13c9dc61bee5144ef7

  • SHA1

    da153314eb5d2536b768f5e4ea310fdacc46e2bf

  • SHA256

    c275f1abe04b02ad1e4b786492d45252548fdcaa3916dddbe36986a7ac0c6163

  • SHA512

    66f89374056b6d0a50567c1c477abff6d9c987c034fda3ddd4af096d244ddf3ed2fa7cdedd254634d21115f30a150438aeb5ec307778bb27a22e55a856043805

  • SSDEEP

    12288:OIny5DYTW0hgICN8/ebwhOFa1h+wy00PsjTLBWnGYBj:QUTW0+ICN8WbwwmBn0cgvj

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\c275f1abe04b02ad1e4b786492d45252548fdcaa3916dddbe36986a7ac0c6163.exe
    "C:\Users\Admin\AppData\Local\Temp\c275f1abe04b02ad1e4b786492d45252548fdcaa3916dddbe36986a7ac0c6163.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:1664
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1872
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:632
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1452
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1224
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1392
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1476
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:900
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1064
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1548
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1804
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:472
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1104
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:600

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdfe0bd06f752b950aee1252ba8bf30e

            SHA1

            ba7aaeabfb260fb736c6d10c3ecd1271134e4d59

            SHA256

            150e4ce5ff57d6cf58383e38decf74b32046699d6da89ff1ac01063794186593

            SHA512

            3077c25539c6928449ffb1ad153b13f976592303e53012b51e5f8ce4e4b59116c9a09782a029423c88e3a06cffd66df851676f2f22b1436b6e14df8dfe5d0996

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            10fd1b61a992ebf42c9e1cd72444ee72

            SHA1

            962770643ef523ffbb8495b323f0633addc3dac4

            SHA256

            7642ea1228a587b9201afa3ea1f8e624daa77841ef5ecac533229d42fa5b272f

            SHA512

            7fe4b81162dcf74b98f3379bfb42269448d8ad379d58e738763de969bb4458c09e75ef639499aaa08c44c6cf5ec7cffe773d175a68573843a7a3358c4c89125d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            539e208db26ff66252b4ca29a901bd1e

            SHA1

            a86ecfcdb7fc3f98193375b6acb800a04fb49f34

            SHA256

            8a9293e19b855daa0f80ff5bc3b7f530baa64a3f2a7bcf44cef1cb12f8a3fbf5

            SHA512

            2842e39a86beba44bf79683755ff2b50edcfe07db254a749ff723d3ebe091f6c96d223cd1ff16f76ff6230544fd57b289cd14dd3348d02146db54946a43a05f7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3e92d5ec0da7f4fb056bb8471d7a8fb5

            SHA1

            866d96dc7e19d7869eb3563b58508c311be541a2

            SHA256

            f011bb91712bf8b23188df90d782de737394d129bfaaeeec04e8a6e691984ac9

            SHA512

            fcb7a3194a8ab2c52ea51b83489f63d8b5a3670440d3e33e36f00b327a37a8239d77b9efaa334464a5fc0cc1bca682ee21bbccf2a34c1569e4e2ebce1f52eb27

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3e92d5ec0da7f4fb056bb8471d7a8fb5

            SHA1

            866d96dc7e19d7869eb3563b58508c311be541a2

            SHA256

            f011bb91712bf8b23188df90d782de737394d129bfaaeeec04e8a6e691984ac9

            SHA512

            fcb7a3194a8ab2c52ea51b83489f63d8b5a3670440d3e33e36f00b327a37a8239d77b9efaa334464a5fc0cc1bca682ee21bbccf2a34c1569e4e2ebce1f52eb27

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7cf06774ab3268bb072fa1724c504e43

            SHA1

            5fe8e4576f71e7216535b098c67e8216c8ef01ef

            SHA256

            7831b4430074e0d33180c82c86ab9c567f38dd456a5aea690d780e7df6b9787c

            SHA512

            940757d310e79b97163cb837cc44b9bdf1a664421e02671315666785e742b259353f8f531778c91d62ee693bdaec14fa431a7392a163c400b46eab9c62d6e0ae

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7cf06774ab3268bb072fa1724c504e43

            SHA1

            5fe8e4576f71e7216535b098c67e8216c8ef01ef

            SHA256

            7831b4430074e0d33180c82c86ab9c567f38dd456a5aea690d780e7df6b9787c

            SHA512

            940757d310e79b97163cb837cc44b9bdf1a664421e02671315666785e742b259353f8f531778c91d62ee693bdaec14fa431a7392a163c400b46eab9c62d6e0ae

          • \Users\Admin\AppData\Local\Temp\nsj1EF9.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsj1EF9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj1EF9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj1EF9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsj1EF9.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdfe0bd06f752b950aee1252ba8bf30e

            SHA1

            ba7aaeabfb260fb736c6d10c3ecd1271134e4d59

            SHA256

            150e4ce5ff57d6cf58383e38decf74b32046699d6da89ff1ac01063794186593

            SHA512

            3077c25539c6928449ffb1ad153b13f976592303e53012b51e5f8ce4e4b59116c9a09782a029423c88e3a06cffd66df851676f2f22b1436b6e14df8dfe5d0996

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdfe0bd06f752b950aee1252ba8bf30e

            SHA1

            ba7aaeabfb260fb736c6d10c3ecd1271134e4d59

            SHA256

            150e4ce5ff57d6cf58383e38decf74b32046699d6da89ff1ac01063794186593

            SHA512

            3077c25539c6928449ffb1ad153b13f976592303e53012b51e5f8ce4e4b59116c9a09782a029423c88e3a06cffd66df851676f2f22b1436b6e14df8dfe5d0996

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            bdfe0bd06f752b950aee1252ba8bf30e

            SHA1

            ba7aaeabfb260fb736c6d10c3ecd1271134e4d59

            SHA256

            150e4ce5ff57d6cf58383e38decf74b32046699d6da89ff1ac01063794186593

            SHA512

            3077c25539c6928449ffb1ad153b13f976592303e53012b51e5f8ce4e4b59116c9a09782a029423c88e3a06cffd66df851676f2f22b1436b6e14df8dfe5d0996

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            10fd1b61a992ebf42c9e1cd72444ee72

            SHA1

            962770643ef523ffbb8495b323f0633addc3dac4

            SHA256

            7642ea1228a587b9201afa3ea1f8e624daa77841ef5ecac533229d42fa5b272f

            SHA512

            7fe4b81162dcf74b98f3379bfb42269448d8ad379d58e738763de969bb4458c09e75ef639499aaa08c44c6cf5ec7cffe773d175a68573843a7a3358c4c89125d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            10fd1b61a992ebf42c9e1cd72444ee72

            SHA1

            962770643ef523ffbb8495b323f0633addc3dac4

            SHA256

            7642ea1228a587b9201afa3ea1f8e624daa77841ef5ecac533229d42fa5b272f

            SHA512

            7fe4b81162dcf74b98f3379bfb42269448d8ad379d58e738763de969bb4458c09e75ef639499aaa08c44c6cf5ec7cffe773d175a68573843a7a3358c4c89125d

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            539e208db26ff66252b4ca29a901bd1e

            SHA1

            a86ecfcdb7fc3f98193375b6acb800a04fb49f34

            SHA256

            8a9293e19b855daa0f80ff5bc3b7f530baa64a3f2a7bcf44cef1cb12f8a3fbf5

            SHA512

            2842e39a86beba44bf79683755ff2b50edcfe07db254a749ff723d3ebe091f6c96d223cd1ff16f76ff6230544fd57b289cd14dd3348d02146db54946a43a05f7

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            3e92d5ec0da7f4fb056bb8471d7a8fb5

            SHA1

            866d96dc7e19d7869eb3563b58508c311be541a2

            SHA256

            f011bb91712bf8b23188df90d782de737394d129bfaaeeec04e8a6e691984ac9

            SHA512

            fcb7a3194a8ab2c52ea51b83489f63d8b5a3670440d3e33e36f00b327a37a8239d77b9efaa334464a5fc0cc1bca682ee21bbccf2a34c1569e4e2ebce1f52eb27

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7cf06774ab3268bb072fa1724c504e43

            SHA1

            5fe8e4576f71e7216535b098c67e8216c8ef01ef

            SHA256

            7831b4430074e0d33180c82c86ab9c567f38dd456a5aea690d780e7df6b9787c

            SHA512

            940757d310e79b97163cb837cc44b9bdf1a664421e02671315666785e742b259353f8f531778c91d62ee693bdaec14fa431a7392a163c400b46eab9c62d6e0ae

          • memory/472-88-0x0000000000000000-mapping.dmp

          • memory/632-59-0x0000000000000000-mapping.dmp

          • memory/900-77-0x0000000000000000-mapping.dmp

          • memory/1064-81-0x0000000000000000-mapping.dmp

          • memory/1224-62-0x0000000000000000-mapping.dmp

          • memory/1392-64-0x0000000000000000-mapping.dmp

          • memory/1452-61-0x0000000000000000-mapping.dmp

          • memory/1476-71-0x0000000000000000-mapping.dmp

          • memory/1548-82-0x0000000000000000-mapping.dmp

          • memory/1664-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1664-54-0x0000000074AD1000-0x0000000074AD3000-memory.dmp

            Filesize

            8KB

          • memory/1664-58-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1664-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1804-87-0x0000000000000000-mapping.dmp

          • memory/1872-57-0x0000000000000000-mapping.dmp