Analysis

  • max time kernel
    50s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    25/11/2022, 14:24

General

  • Target

    7bddf2bc90ebc5662d606cd0eb1964d0512a604bdc6a0ad39e25e6ed7c8be75c.exe

  • Size

    562KB

  • MD5

    9bb81daf74971dd1090369427142f1fa

  • SHA1

    313656bfdeeb34c3e093ef5add21fd35b1d084d1

  • SHA256

    7bddf2bc90ebc5662d606cd0eb1964d0512a604bdc6a0ad39e25e6ed7c8be75c

  • SHA512

    58703fd8bc3c50e2e6252ca68ed803d0a355f29829f323554b538b4370c3aa8373b81f850f4c049e54277ccc9b0cdc02db7d2e9fb1f93b37a94b1844c1126ad8

  • SSDEEP

    12288:NPRYzJbfDOzZpNkz3A/ZPxVYkkV3d8ptQ1qBDnF:Uz9fSzzN8A/ZxqVStkq

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\7bddf2bc90ebc5662d606cd0eb1964d0512a604bdc6a0ad39e25e6ed7c8be75c.exe
    "C:\Users\Admin\AppData\Local\Temp\7bddf2bc90ebc5662d606cd0eb1964d0512a604bdc6a0ad39e25e6ed7c8be75c.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:1372
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1232
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1812
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1532
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1800
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:972
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1604
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1996
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1528
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1728
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1060
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1056
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1724
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1980

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            66ca701e9f3d42964ca25e447a91228b

            SHA1

            9ff4efbd3108b9625fd46bc199c5093eb069318a

            SHA256

            409ca200d5b37bec8f5eb2dad6f3991b51d8193ad29f1f27306546dc1660dbe6

            SHA512

            5b195c4f4652155e4bec58bf8a274d1c39ec35b7a647f7b91aa4514ca1245a583b09589aa266cf59b26b05d325ffa0e18e7d7d113f169fc0148abd573fa3b566

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            517fbcc10ad74596fe67e689e34cbdad

            SHA1

            b8cd8269964a982aa87d68d3784bd4fa91485361

            SHA256

            98a2aa88906e91e2a3850c49a19de209ff39865128b5ed99fbb27401ff7d9060

            SHA512

            96d34c1eaf8cadbc259c2a883c67433f4d0198c0fe22bda20b844d80c7d14f5f703a99b48988d27ad2e0b26b7774eb918ad4a1a23fdebea604e74d05f884af28

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3a8dc130acfda8045550c75de1cf615e

            SHA1

            3567328f1f00b59f75c5e05936eb57d9419547ed

            SHA256

            f172b1c74dd142f71477f5edd4697f7fc9f5145cf3481ae090b1ed6ae945c75b

            SHA512

            ebd923f76c5af2d33683e3e77e8675396dd062df8a8351966970afa8218d668a4708c713d03b05e2fde39e742147c93c5931aeb866b196bda53df4febb796ec7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd7270fbfa346dfeef61eb97dc6033f4

            SHA1

            1da837da630e9dea66fe0a9f3108a82086188cd8

            SHA256

            f749ec6d54e249e6e8c51775948303e3ff4a4861ec358bb5f8254567b38cc392

            SHA512

            544aecc1b826c68b3d6eccd21151a1d2f13fe023a1bdbea839aaff637cc2158da3f69b24559501cb2ec7f39f86412a3d9f8aaba9233ceab5add244887d2bd56c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd7270fbfa346dfeef61eb97dc6033f4

            SHA1

            1da837da630e9dea66fe0a9f3108a82086188cd8

            SHA256

            f749ec6d54e249e6e8c51775948303e3ff4a4861ec358bb5f8254567b38cc392

            SHA512

            544aecc1b826c68b3d6eccd21151a1d2f13fe023a1bdbea839aaff637cc2158da3f69b24559501cb2ec7f39f86412a3d9f8aaba9233ceab5add244887d2bd56c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e1c0ce2941cf941e9c95800c8c4843f6

            SHA1

            d9ce3987eba6873136e523cd08f1a776249fdb21

            SHA256

            300c8452ef7cfcdcc884d3b8b49725bec38a9e095cfcc1ae10ae3e8cb543773a

            SHA512

            8711049bd1e53bbd88bdcb643375fb65140350b1efe626ead31077faf6e19d73cd943ffcf77a67d1c27e5ff7345e3a1d21f20c6ffd37ddd22559690970706a53

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e1c0ce2941cf941e9c95800c8c4843f6

            SHA1

            d9ce3987eba6873136e523cd08f1a776249fdb21

            SHA256

            300c8452ef7cfcdcc884d3b8b49725bec38a9e095cfcc1ae10ae3e8cb543773a

            SHA512

            8711049bd1e53bbd88bdcb643375fb65140350b1efe626ead31077faf6e19d73cd943ffcf77a67d1c27e5ff7345e3a1d21f20c6ffd37ddd22559690970706a53

          • \Users\Admin\AppData\Local\Temp\nso345C.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nso345C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso345C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso345C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nso345C.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            66ca701e9f3d42964ca25e447a91228b

            SHA1

            9ff4efbd3108b9625fd46bc199c5093eb069318a

            SHA256

            409ca200d5b37bec8f5eb2dad6f3991b51d8193ad29f1f27306546dc1660dbe6

            SHA512

            5b195c4f4652155e4bec58bf8a274d1c39ec35b7a647f7b91aa4514ca1245a583b09589aa266cf59b26b05d325ffa0e18e7d7d113f169fc0148abd573fa3b566

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            66ca701e9f3d42964ca25e447a91228b

            SHA1

            9ff4efbd3108b9625fd46bc199c5093eb069318a

            SHA256

            409ca200d5b37bec8f5eb2dad6f3991b51d8193ad29f1f27306546dc1660dbe6

            SHA512

            5b195c4f4652155e4bec58bf8a274d1c39ec35b7a647f7b91aa4514ca1245a583b09589aa266cf59b26b05d325ffa0e18e7d7d113f169fc0148abd573fa3b566

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            66ca701e9f3d42964ca25e447a91228b

            SHA1

            9ff4efbd3108b9625fd46bc199c5093eb069318a

            SHA256

            409ca200d5b37bec8f5eb2dad6f3991b51d8193ad29f1f27306546dc1660dbe6

            SHA512

            5b195c4f4652155e4bec58bf8a274d1c39ec35b7a647f7b91aa4514ca1245a583b09589aa266cf59b26b05d325ffa0e18e7d7d113f169fc0148abd573fa3b566

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            517fbcc10ad74596fe67e689e34cbdad

            SHA1

            b8cd8269964a982aa87d68d3784bd4fa91485361

            SHA256

            98a2aa88906e91e2a3850c49a19de209ff39865128b5ed99fbb27401ff7d9060

            SHA512

            96d34c1eaf8cadbc259c2a883c67433f4d0198c0fe22bda20b844d80c7d14f5f703a99b48988d27ad2e0b26b7774eb918ad4a1a23fdebea604e74d05f884af28

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            517fbcc10ad74596fe67e689e34cbdad

            SHA1

            b8cd8269964a982aa87d68d3784bd4fa91485361

            SHA256

            98a2aa88906e91e2a3850c49a19de209ff39865128b5ed99fbb27401ff7d9060

            SHA512

            96d34c1eaf8cadbc259c2a883c67433f4d0198c0fe22bda20b844d80c7d14f5f703a99b48988d27ad2e0b26b7774eb918ad4a1a23fdebea604e74d05f884af28

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            3a8dc130acfda8045550c75de1cf615e

            SHA1

            3567328f1f00b59f75c5e05936eb57d9419547ed

            SHA256

            f172b1c74dd142f71477f5edd4697f7fc9f5145cf3481ae090b1ed6ae945c75b

            SHA512

            ebd923f76c5af2d33683e3e77e8675396dd062df8a8351966970afa8218d668a4708c713d03b05e2fde39e742147c93c5931aeb866b196bda53df4febb796ec7

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            cd7270fbfa346dfeef61eb97dc6033f4

            SHA1

            1da837da630e9dea66fe0a9f3108a82086188cd8

            SHA256

            f749ec6d54e249e6e8c51775948303e3ff4a4861ec358bb5f8254567b38cc392

            SHA512

            544aecc1b826c68b3d6eccd21151a1d2f13fe023a1bdbea839aaff637cc2158da3f69b24559501cb2ec7f39f86412a3d9f8aaba9233ceab5add244887d2bd56c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            e1c0ce2941cf941e9c95800c8c4843f6

            SHA1

            d9ce3987eba6873136e523cd08f1a776249fdb21

            SHA256

            300c8452ef7cfcdcc884d3b8b49725bec38a9e095cfcc1ae10ae3e8cb543773a

            SHA512

            8711049bd1e53bbd88bdcb643375fb65140350b1efe626ead31077faf6e19d73cd943ffcf77a67d1c27e5ff7345e3a1d21f20c6ffd37ddd22559690970706a53

          • memory/1372-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1372-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1372-54-0x0000000075071000-0x0000000075073000-memory.dmp

            Filesize

            8KB