Analysis

  • max time kernel
    42s
  • max time network
    47s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:15

General

  • Target

    adb51850a83370493a0318cf4c65a3430f7e8940606b9eacb58e488ff9310738.exe

  • Size

    602KB

  • MD5

    bf69fe5fd74278d28edd213879331f74

  • SHA1

    ef1a7855fe1b70ffe35a5f59fade8758e4246b0b

  • SHA256

    adb51850a83370493a0318cf4c65a3430f7e8940606b9eacb58e488ff9310738

  • SHA512

    894955a6bb57fe94b097c8e237efab698f7ee78f6353ddf656d566b15da1ffd9f165537effad43756e1554bdd18e6b90edceb86cdea7e30580a068c2ee943914

  • SSDEEP

    12288:NIny5DYTgJreGTX1DvoZbbG5diTdxygzqEypHjXXvjSi:ZUTMrt1DGbMdiTDzqhHTfO

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\adb51850a83370493a0318cf4c65a3430f7e8940606b9eacb58e488ff9310738.exe
    "C:\Users\Admin\AppData\Local\Temp\adb51850a83370493a0318cf4c65a3430f7e8940606b9eacb58e488ff9310738.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:1972
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:980
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1104
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1252
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1064
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1248
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1224
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1448
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1404
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1736
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1300
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1496
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1532

          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

            db2a4db916fb0ad0533c336436177e05

            SHA1

            0e3a8a61b87164b2bcf42397c2dd6c1d1962df02

            SHA256

            372d082c7f88324b15847945997e2210d347cdfee3757ee35d8a832859a345b4

            SHA512

            f0fe6902a08e1ee47869095c3f9e419cfb581d10d0fb84a111bb670cb2bc37d3640342e3814e9522fe41083f6a4e4c29ded4da31a592a89cb845870e9e4e8e2f

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

            241KB

            MD5

            c1aba0ddef1e1c4ec6fe1f43fc527fa9

            SHA1

            03c5fd9942cecd7605960a85526953b72651d0f3

            SHA256

            da61fcb22ad580df870d7ff19b51ecb7e08e61e9e420694b66a203d5b07d1e4d

            SHA512

            f2d4be4aabcaced4e2d4de7ffa04ad9970da808620097a9065d7dd244fa822123f1ba6fe4c88454810dd4b06e5530a1e21550919300aff5ce67fa863667f373f

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

            108KB

            MD5

            08d2034dd62e15d390066222f7f4fc07

            SHA1

            d4d32788a98798b3372c13ac4d719ffa9afd5d28

            SHA256

            8854e3a78592579b680c5bdace17df5678fae199752c86e7e7a946365436e67e

            SHA512

            f1f3012cd5019c4db81cbe80eccb2d73b8a67ba17b23adfd1e43fc560c6ab8514be85bac3ee19978b754cf0e33a52c6f475cb43dfdd0de296dce65595d93c9c0

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

            176KB

            MD5

            732d9802aef4d21046b9717df596d2f5

            SHA1

            1c8f0e0c94875cb4373e0018ab5f69d3bdc898bb

            SHA256

            fcb9d895af4c8db07ac337a48f13fee96f0e74870eddd7f614c5381439393777

            SHA512

            deadf7d2750d2b4d3409911dc066bda5489fe02ac72099dcbe1d6ffa32bf094a1e67fb532f7322e559610f4bcf1348c26c9efbac7a55103ee73380c780ccc847

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

            176KB

            MD5

            732d9802aef4d21046b9717df596d2f5

            SHA1

            1c8f0e0c94875cb4373e0018ab5f69d3bdc898bb

            SHA256

            fcb9d895af4c8db07ac337a48f13fee96f0e74870eddd7f614c5381439393777

            SHA512

            deadf7d2750d2b4d3409911dc066bda5489fe02ac72099dcbe1d6ffa32bf094a1e67fb532f7322e559610f4bcf1348c26c9efbac7a55103ee73380c780ccc847

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

            158KB

            MD5

            23cea7dc29430701f18113de3cbf57e5

            SHA1

            f65e22cab4fba1f60d850f37acd5f7584751fd5c

            SHA256

            ed99b5d24ded40d763c0ac4e044af4a0e0e043b920ac49a5166e5fd8a1eb2ee4

            SHA512

            c8906bb32052bd6f901899a94fe08338a5956e35c5c4b25a5f7d7b0032c5ba1345164572e599defb22b9e87a8599078346de488a8768bea63d005caaa00d17c2

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

            158KB

            MD5

            23cea7dc29430701f18113de3cbf57e5

            SHA1

            f65e22cab4fba1f60d850f37acd5f7584751fd5c

            SHA256

            ed99b5d24ded40d763c0ac4e044af4a0e0e043b920ac49a5166e5fd8a1eb2ee4

            SHA512

            c8906bb32052bd6f901899a94fe08338a5956e35c5c4b25a5f7d7b0032c5ba1345164572e599defb22b9e87a8599078346de488a8768bea63d005caaa00d17c2

          • \Users\Admin\AppData\Local\Temp\nsd1B7F.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd1B7F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd1B7F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd1B7F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd1B7F.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            db2a4db916fb0ad0533c336436177e05

            SHA1

            0e3a8a61b87164b2bcf42397c2dd6c1d1962df02

            SHA256

            372d082c7f88324b15847945997e2210d347cdfee3757ee35d8a832859a345b4

            SHA512

            f0fe6902a08e1ee47869095c3f9e419cfb581d10d0fb84a111bb670cb2bc37d3640342e3814e9522fe41083f6a4e4c29ded4da31a592a89cb845870e9e4e8e2f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            db2a4db916fb0ad0533c336436177e05

            SHA1

            0e3a8a61b87164b2bcf42397c2dd6c1d1962df02

            SHA256

            372d082c7f88324b15847945997e2210d347cdfee3757ee35d8a832859a345b4

            SHA512

            f0fe6902a08e1ee47869095c3f9e419cfb581d10d0fb84a111bb670cb2bc37d3640342e3814e9522fe41083f6a4e4c29ded4da31a592a89cb845870e9e4e8e2f

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            db2a4db916fb0ad0533c336436177e05

            SHA1

            0e3a8a61b87164b2bcf42397c2dd6c1d1962df02

            SHA256

            372d082c7f88324b15847945997e2210d347cdfee3757ee35d8a832859a345b4

            SHA512

            f0fe6902a08e1ee47869095c3f9e419cfb581d10d0fb84a111bb670cb2bc37d3640342e3814e9522fe41083f6a4e4c29ded4da31a592a89cb845870e9e4e8e2f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            c1aba0ddef1e1c4ec6fe1f43fc527fa9

            SHA1

            03c5fd9942cecd7605960a85526953b72651d0f3

            SHA256

            da61fcb22ad580df870d7ff19b51ecb7e08e61e9e420694b66a203d5b07d1e4d

            SHA512

            f2d4be4aabcaced4e2d4de7ffa04ad9970da808620097a9065d7dd244fa822123f1ba6fe4c88454810dd4b06e5530a1e21550919300aff5ce67fa863667f373f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            c1aba0ddef1e1c4ec6fe1f43fc527fa9

            SHA1

            03c5fd9942cecd7605960a85526953b72651d0f3

            SHA256

            da61fcb22ad580df870d7ff19b51ecb7e08e61e9e420694b66a203d5b07d1e4d

            SHA512

            f2d4be4aabcaced4e2d4de7ffa04ad9970da808620097a9065d7dd244fa822123f1ba6fe4c88454810dd4b06e5530a1e21550919300aff5ce67fa863667f373f

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            08d2034dd62e15d390066222f7f4fc07

            SHA1

            d4d32788a98798b3372c13ac4d719ffa9afd5d28

            SHA256

            8854e3a78592579b680c5bdace17df5678fae199752c86e7e7a946365436e67e

            SHA512

            f1f3012cd5019c4db81cbe80eccb2d73b8a67ba17b23adfd1e43fc560c6ab8514be85bac3ee19978b754cf0e33a52c6f475cb43dfdd0de296dce65595d93c9c0

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            732d9802aef4d21046b9717df596d2f5

            SHA1

            1c8f0e0c94875cb4373e0018ab5f69d3bdc898bb

            SHA256

            fcb9d895af4c8db07ac337a48f13fee96f0e74870eddd7f614c5381439393777

            SHA512

            deadf7d2750d2b4d3409911dc066bda5489fe02ac72099dcbe1d6ffa32bf094a1e67fb532f7322e559610f4bcf1348c26c9efbac7a55103ee73380c780ccc847

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            23cea7dc29430701f18113de3cbf57e5

            SHA1

            f65e22cab4fba1f60d850f37acd5f7584751fd5c

            SHA256

            ed99b5d24ded40d763c0ac4e044af4a0e0e043b920ac49a5166e5fd8a1eb2ee4

            SHA512

            c8906bb32052bd6f901899a94fe08338a5956e35c5c4b25a5f7d7b0032c5ba1345164572e599defb22b9e87a8599078346de488a8768bea63d005caaa00d17c2

          • memory/980-57-0x0000000000000000-mapping.dmp
          • memory/1064-61-0x0000000000000000-mapping.dmp
          • memory/1104-58-0x0000000000000000-mapping.dmp
          • memory/1224-70-0x0000000000000000-mapping.dmp
          • memory/1248-64-0x0000000000000000-mapping.dmp
          • memory/1252-60-0x0000000000000000-mapping.dmp
          • memory/1300-88-0x0000000000000000-mapping.dmp
          • memory/1404-82-0x0000000000000000-mapping.dmp
          • memory/1448-77-0x0000000000000000-mapping.dmp
          • memory/1652-81-0x0000000000000000-mapping.dmp
          • memory/1736-87-0x0000000000000000-mapping.dmp
          • memory/1972-54-0x0000000075981000-0x0000000075983000-memory.dmp
            Filesize

            8KB

          • memory/1972-75-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1972-62-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1972-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB