Analysis

  • max time kernel
    39s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    24/11/2022, 06:01

General

  • Target

    d42aeb9660f29723735b5104fcc71d90c2cde96b6bc2bab1777cda976747507e.exe

  • Size

    695KB

  • MD5

    3ef432bbf8cf07c9211e2d782ea5a6b1

  • SHA1

    e320f0a946261797d8da0a4bc540f619148d0271

  • SHA256

    d42aeb9660f29723735b5104fcc71d90c2cde96b6bc2bab1777cda976747507e

  • SHA512

    708ebf43fd95c2cf5fa27b6726e37a4e5445990903e3e6af283f207911eb1e15fdf581eb5bd44cd02b8b176327857f2d2e1d9bfe6a87a1a2e049e05de8e672d0

  • SSDEEP

    12288:8Abu3fQ+thk6Ezvbfo0TWNKuMu/sDj+nvnOfYrG0xVocIoMLJAFK4xhWt/:8AbuPPEzzf/puF/uynWmG0jzIb+pm

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\d42aeb9660f29723735b5104fcc71d90c2cde96b6bc2bab1777cda976747507e.exe
    "C:\Users\Admin\AppData\Local\Temp\d42aeb9660f29723735b5104fcc71d90c2cde96b6bc2bab1777cda976747507e.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:1416
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1500
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1960
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:984
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1072
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1704
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1712
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1652
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1840
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1724
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:592
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1480
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1436
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1408

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7dd815f6ea982848a71866e967f031cc

            SHA1

            10038ac72bc6b26dc6fe819c0524e60eaab8e306

            SHA256

            adc16d3cc6bd399cfe809957ad6d4b27b2421c805c009dfd0ac5de82772b31cd

            SHA512

            4b5294e2b17b1812b2d1415a100fd99407d2c3ea31774dfbdd6943c553d5cb48a11cb6873a00c9f9eec34e472f2786ada7c08f23e3e8030eff24f81cbb04e008

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7163b4419c5c6f4ac8ea997b02772338

            SHA1

            a2aebd63f37842bd47afb6ed5dd701fb6ee2f59c

            SHA256

            dfc800c13c44ec9f076515a55c1382ac0f15e1410c0f53c79deac781f9a066b5

            SHA512

            ab9e3627c12d1c6de9e19cff537c703a45c0b55ef28108c3f949e84c7139ceb7d78fb65fc0a07d07b77a49fe557d785c42aa66f38ec2cdaa00f5f9cfb78800e6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f6b33bd9c92672a535751aa95ef2fff2

            SHA1

            5b36fab4ac52705869d7cb7b4c8b990f84405168

            SHA256

            326feac22ea4f8013422aa231f4b21216ca7fa38b499aa9543face4a3569c552

            SHA512

            428e19a008ac5f82d40bdb1e7ecc6e840d1d7a2f0e89052c5e6b9e0d89d84694274101d1a95b95ee0953f99dae0a8cc3bcb02855c12893ad57a4a02677a6f1cf

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            03cb1b626b043d78ba9b7adbfe91c0ad

            SHA1

            a7da08b20776657c1b57b2c66e99ed05e9bf7fb7

            SHA256

            bad06609b50688766cd0ce3b168b12b10c67cb3fadf42e1e0fdaa5c15ae08c3e

            SHA512

            7a98da9abf80620d2de7d2ccfa1ff9cb5a79fd960df5421b4282a73d3d2049e887d6d451b08b4dab36fda8f3913663fa98418b204d5eaca041a7e19dc60b939b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            03cb1b626b043d78ba9b7adbfe91c0ad

            SHA1

            a7da08b20776657c1b57b2c66e99ed05e9bf7fb7

            SHA256

            bad06609b50688766cd0ce3b168b12b10c67cb3fadf42e1e0fdaa5c15ae08c3e

            SHA512

            7a98da9abf80620d2de7d2ccfa1ff9cb5a79fd960df5421b4282a73d3d2049e887d6d451b08b4dab36fda8f3913663fa98418b204d5eaca041a7e19dc60b939b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            48289d05bf82288e34b67fb4d1cc14f0

            SHA1

            43ab3bbb39548177b015a7b3e60ac2d1d730dbd9

            SHA256

            0c75b922c152b3fd14516c9cdacc03bde8d2357c07a427bb2831c180b117fc9c

            SHA512

            d3ff730ded22d89c565bc39b55e39b506e46eca3c754f3ccdb1994f658982a56ffa792a7f9c15a6d5cee07404889db5ee6c73888e10b916f8def6916eeeec97a

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            48289d05bf82288e34b67fb4d1cc14f0

            SHA1

            43ab3bbb39548177b015a7b3e60ac2d1d730dbd9

            SHA256

            0c75b922c152b3fd14516c9cdacc03bde8d2357c07a427bb2831c180b117fc9c

            SHA512

            d3ff730ded22d89c565bc39b55e39b506e46eca3c754f3ccdb1994f658982a56ffa792a7f9c15a6d5cee07404889db5ee6c73888e10b916f8def6916eeeec97a

          • \Users\Admin\AppData\Local\Temp\nsd738D.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd738D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd738D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd738D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd738D.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7dd815f6ea982848a71866e967f031cc

            SHA1

            10038ac72bc6b26dc6fe819c0524e60eaab8e306

            SHA256

            adc16d3cc6bd399cfe809957ad6d4b27b2421c805c009dfd0ac5de82772b31cd

            SHA512

            4b5294e2b17b1812b2d1415a100fd99407d2c3ea31774dfbdd6943c553d5cb48a11cb6873a00c9f9eec34e472f2786ada7c08f23e3e8030eff24f81cbb04e008

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7dd815f6ea982848a71866e967f031cc

            SHA1

            10038ac72bc6b26dc6fe819c0524e60eaab8e306

            SHA256

            adc16d3cc6bd399cfe809957ad6d4b27b2421c805c009dfd0ac5de82772b31cd

            SHA512

            4b5294e2b17b1812b2d1415a100fd99407d2c3ea31774dfbdd6943c553d5cb48a11cb6873a00c9f9eec34e472f2786ada7c08f23e3e8030eff24f81cbb04e008

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7dd815f6ea982848a71866e967f031cc

            SHA1

            10038ac72bc6b26dc6fe819c0524e60eaab8e306

            SHA256

            adc16d3cc6bd399cfe809957ad6d4b27b2421c805c009dfd0ac5de82772b31cd

            SHA512

            4b5294e2b17b1812b2d1415a100fd99407d2c3ea31774dfbdd6943c553d5cb48a11cb6873a00c9f9eec34e472f2786ada7c08f23e3e8030eff24f81cbb04e008

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7163b4419c5c6f4ac8ea997b02772338

            SHA1

            a2aebd63f37842bd47afb6ed5dd701fb6ee2f59c

            SHA256

            dfc800c13c44ec9f076515a55c1382ac0f15e1410c0f53c79deac781f9a066b5

            SHA512

            ab9e3627c12d1c6de9e19cff537c703a45c0b55ef28108c3f949e84c7139ceb7d78fb65fc0a07d07b77a49fe557d785c42aa66f38ec2cdaa00f5f9cfb78800e6

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            7163b4419c5c6f4ac8ea997b02772338

            SHA1

            a2aebd63f37842bd47afb6ed5dd701fb6ee2f59c

            SHA256

            dfc800c13c44ec9f076515a55c1382ac0f15e1410c0f53c79deac781f9a066b5

            SHA512

            ab9e3627c12d1c6de9e19cff537c703a45c0b55ef28108c3f949e84c7139ceb7d78fb65fc0a07d07b77a49fe557d785c42aa66f38ec2cdaa00f5f9cfb78800e6

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f6b33bd9c92672a535751aa95ef2fff2

            SHA1

            5b36fab4ac52705869d7cb7b4c8b990f84405168

            SHA256

            326feac22ea4f8013422aa231f4b21216ca7fa38b499aa9543face4a3569c552

            SHA512

            428e19a008ac5f82d40bdb1e7ecc6e840d1d7a2f0e89052c5e6b9e0d89d84694274101d1a95b95ee0953f99dae0a8cc3bcb02855c12893ad57a4a02677a6f1cf

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            03cb1b626b043d78ba9b7adbfe91c0ad

            SHA1

            a7da08b20776657c1b57b2c66e99ed05e9bf7fb7

            SHA256

            bad06609b50688766cd0ce3b168b12b10c67cb3fadf42e1e0fdaa5c15ae08c3e

            SHA512

            7a98da9abf80620d2de7d2ccfa1ff9cb5a79fd960df5421b4282a73d3d2049e887d6d451b08b4dab36fda8f3913663fa98418b204d5eaca041a7e19dc60b939b

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            48289d05bf82288e34b67fb4d1cc14f0

            SHA1

            43ab3bbb39548177b015a7b3e60ac2d1d730dbd9

            SHA256

            0c75b922c152b3fd14516c9cdacc03bde8d2357c07a427bb2831c180b117fc9c

            SHA512

            d3ff730ded22d89c565bc39b55e39b506e46eca3c754f3ccdb1994f658982a56ffa792a7f9c15a6d5cee07404889db5ee6c73888e10b916f8def6916eeeec97a

          • memory/1416-54-0x0000000075E81000-0x0000000075E83000-memory.dmp

            Filesize

            8KB

          • memory/1416-55-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB

          • memory/1416-90-0x0000000000340000-0x00000000007BE000-memory.dmp

            Filesize

            4.5MB