Analysis

  • max time kernel
    47s
  • max time network
    53s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    28-11-2022 03:12

General

  • Target

    382b2c3ccebb98d053bbc11be555de302625334c18893c6d9e52d2f6db087798.exe

  • Size

    829KB

  • MD5

    9a52caecf8b5b6595509a25edfc3dd8e

  • SHA1

    f69423db807072900ec61bbf6210bc2fe63a0f1d

  • SHA256

    382b2c3ccebb98d053bbc11be555de302625334c18893c6d9e52d2f6db087798

  • SHA512

    f469cb5a5441706e729ee6cfea972333fae7d004b07eb0c7ad9ef4a6b1be676290fb158fa1fd33caa1ca9027f510164647ff724316c61fcbdf2c2bd5f9229c5e

  • SSDEEP

    24576:TrfGR2wDeRMTjmGsbk+bAEb6PJ1SJk+o+rB:TYYRMTfQk+Tb7pr

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\382b2c3ccebb98d053bbc11be555de302625334c18893c6d9e52d2f6db087798.exe
    "C:\Users\Admin\AppData\Local\Temp\382b2c3ccebb98d053bbc11be555de302625334c18893c6d9e52d2f6db087798.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:1364
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1932
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1216
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1248
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:472
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1220
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1652
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1604
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1640
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2028
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1944
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1628
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:2008
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:360

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9c857382466033ecb8609859095853fa

            SHA1

            9038d2e0491137c00ab4b626fa57b2793b937881

            SHA256

            581056df2c34d47e49e0ca0ba415fdc28184b8fb5c28c4c5f440115a4be58442

            SHA512

            0d714c4c43470d93806fd15f00c213e04d3dbe82db0be4a5dbda63b1c8dfe409130211e588e1448439f58c336f76c7c2b75ce53d2b80e025b6643f4f0ffdd4f0

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            1bc28d59b7727a4404ad71fa91e769c0

            SHA1

            80eaf5c539771efa4c5fd7cc0c9fc6156afc5103

            SHA256

            5322732659d5a5409e74f480b85a7608966d6bb75e56644748b41477217ea969

            SHA512

            38b18e2837198853e2ca34fc4e1ab0453c4c9b77ec411c8e66ca646eadf8639c0840b7599a9f54ce423df9f2e4307b9ace734e69667156158ff1eb76ce71bc39

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            d0963d0c1c04a7311b16af70236a9334

            SHA1

            d8747ac339dc41016c04c15f134dbbc9f82089c9

            SHA256

            456ad99bf1177ad138597343cc6e9fa3dbe13e4c633a294e7d9d4b8efc0ce6a6

            SHA512

            fa17ca38f7ec9d8786775c45af67874d04334d1a4a23cc1cd043d364f5ffd92204264bd528736f73b7e4836bbd5a934602f76ac258b005b16f27a83a3ca7919c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            330KB

            MD5

            7f8f502d2ca8adfc0b63a4b91ac4de62

            SHA1

            a6f821457d2fd814784e3b9c566b878fe030eae1

            SHA256

            29737a08e64116eca9da52f2a0edcfdf8b74ceeff96ada3037fa9ad7f267eda2

            SHA512

            5e23dc964885ecb004ecbe90083e6bae9f546be2fe2ea5adf5d2d73d3556bca56017c3d8a2b8ee3711c1e62d89db64db1ccdc5903d87e4447c208d7d4eedbf61

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            330KB

            MD5

            7f8f502d2ca8adfc0b63a4b91ac4de62

            SHA1

            a6f821457d2fd814784e3b9c566b878fe030eae1

            SHA256

            29737a08e64116eca9da52f2a0edcfdf8b74ceeff96ada3037fa9ad7f267eda2

            SHA512

            5e23dc964885ecb004ecbe90083e6bae9f546be2fe2ea5adf5d2d73d3556bca56017c3d8a2b8ee3711c1e62d89db64db1ccdc5903d87e4447c208d7d4eedbf61

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            a734f2e628996226cc351598a5678b20

            SHA1

            027ceb4fc72bf808de06d91810a057633f4b9994

            SHA256

            3cb63c423b5e270533d6677102dec25ff719fb6db645826fb4a3811456be7efd

            SHA512

            3bad0c478d34d44cb2247625404f74562f2b94e88b9711b68d49c6b84d836b31bfef6a7e2eb6284b38b841351e65a2bea1304433a997b20f8b9fdc352481a0a9

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            a734f2e628996226cc351598a5678b20

            SHA1

            027ceb4fc72bf808de06d91810a057633f4b9994

            SHA256

            3cb63c423b5e270533d6677102dec25ff719fb6db645826fb4a3811456be7efd

            SHA512

            3bad0c478d34d44cb2247625404f74562f2b94e88b9711b68d49c6b84d836b31bfef6a7e2eb6284b38b841351e65a2bea1304433a997b20f8b9fdc352481a0a9

          • \Users\Admin\AppData\Local\Temp\nst3611.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nst3611.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3611.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3611.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nst3611.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9c857382466033ecb8609859095853fa

            SHA1

            9038d2e0491137c00ab4b626fa57b2793b937881

            SHA256

            581056df2c34d47e49e0ca0ba415fdc28184b8fb5c28c4c5f440115a4be58442

            SHA512

            0d714c4c43470d93806fd15f00c213e04d3dbe82db0be4a5dbda63b1c8dfe409130211e588e1448439f58c336f76c7c2b75ce53d2b80e025b6643f4f0ffdd4f0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9c857382466033ecb8609859095853fa

            SHA1

            9038d2e0491137c00ab4b626fa57b2793b937881

            SHA256

            581056df2c34d47e49e0ca0ba415fdc28184b8fb5c28c4c5f440115a4be58442

            SHA512

            0d714c4c43470d93806fd15f00c213e04d3dbe82db0be4a5dbda63b1c8dfe409130211e588e1448439f58c336f76c7c2b75ce53d2b80e025b6643f4f0ffdd4f0

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            9c857382466033ecb8609859095853fa

            SHA1

            9038d2e0491137c00ab4b626fa57b2793b937881

            SHA256

            581056df2c34d47e49e0ca0ba415fdc28184b8fb5c28c4c5f440115a4be58442

            SHA512

            0d714c4c43470d93806fd15f00c213e04d3dbe82db0be4a5dbda63b1c8dfe409130211e588e1448439f58c336f76c7c2b75ce53d2b80e025b6643f4f0ffdd4f0

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            1bc28d59b7727a4404ad71fa91e769c0

            SHA1

            80eaf5c539771efa4c5fd7cc0c9fc6156afc5103

            SHA256

            5322732659d5a5409e74f480b85a7608966d6bb75e56644748b41477217ea969

            SHA512

            38b18e2837198853e2ca34fc4e1ab0453c4c9b77ec411c8e66ca646eadf8639c0840b7599a9f54ce423df9f2e4307b9ace734e69667156158ff1eb76ce71bc39

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            427KB

            MD5

            1bc28d59b7727a4404ad71fa91e769c0

            SHA1

            80eaf5c539771efa4c5fd7cc0c9fc6156afc5103

            SHA256

            5322732659d5a5409e74f480b85a7608966d6bb75e56644748b41477217ea969

            SHA512

            38b18e2837198853e2ca34fc4e1ab0453c4c9b77ec411c8e66ca646eadf8639c0840b7599a9f54ce423df9f2e4307b9ace734e69667156158ff1eb76ce71bc39

          • \Windows\SysWOW64\installd.exe

            Filesize

            137KB

            MD5

            d0963d0c1c04a7311b16af70236a9334

            SHA1

            d8747ac339dc41016c04c15f134dbbc9f82089c9

            SHA256

            456ad99bf1177ad138597343cc6e9fa3dbe13e4c633a294e7d9d4b8efc0ce6a6

            SHA512

            fa17ca38f7ec9d8786775c45af67874d04334d1a4a23cc1cd043d364f5ffd92204264bd528736f73b7e4836bbd5a934602f76ac258b005b16f27a83a3ca7919c

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            330KB

            MD5

            7f8f502d2ca8adfc0b63a4b91ac4de62

            SHA1

            a6f821457d2fd814784e3b9c566b878fe030eae1

            SHA256

            29737a08e64116eca9da52f2a0edcfdf8b74ceeff96ada3037fa9ad7f267eda2

            SHA512

            5e23dc964885ecb004ecbe90083e6bae9f546be2fe2ea5adf5d2d73d3556bca56017c3d8a2b8ee3711c1e62d89db64db1ccdc5903d87e4447c208d7d4eedbf61

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            186KB

            MD5

            a734f2e628996226cc351598a5678b20

            SHA1

            027ceb4fc72bf808de06d91810a057633f4b9994

            SHA256

            3cb63c423b5e270533d6677102dec25ff719fb6db645826fb4a3811456be7efd

            SHA512

            3bad0c478d34d44cb2247625404f74562f2b94e88b9711b68d49c6b84d836b31bfef6a7e2eb6284b38b841351e65a2bea1304433a997b20f8b9fdc352481a0a9

          • memory/472-62-0x0000000000000000-mapping.dmp

          • memory/1216-58-0x0000000000000000-mapping.dmp

          • memory/1220-64-0x0000000000000000-mapping.dmp

          • memory/1248-61-0x0000000000000000-mapping.dmp

          • memory/1364-90-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB

          • memory/1364-54-0x0000000075091000-0x0000000075093000-memory.dmp

            Filesize

            8KB

          • memory/1364-59-0x0000000000320000-0x00000000007BE000-memory.dmp

            Filesize

            4.6MB

          • memory/1604-76-0x0000000000000000-mapping.dmp

          • memory/1628-87-0x0000000000000000-mapping.dmp

          • memory/1640-80-0x0000000000000000-mapping.dmp

          • memory/1652-70-0x0000000000000000-mapping.dmp

          • memory/1932-57-0x0000000000000000-mapping.dmp

          • memory/1944-86-0x0000000000000000-mapping.dmp

          • memory/2028-81-0x0000000000000000-mapping.dmp