Analysis

  • max time kernel
    205s
  • max time network
    210s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:32

General

  • Target

    1a53eddeb5850b41fd327841c2df2d1cb1739d8abfdc4bb28ea7f727fca5bbbc.exe

  • Size

    602KB

  • MD5

    09966feead5a99573e38d082b79a1a20

  • SHA1

    c8fbc049af2e91cb7b197862868dd35eb9d3b2f8

  • SHA256

    1a53eddeb5850b41fd327841c2df2d1cb1739d8abfdc4bb28ea7f727fca5bbbc

  • SHA512

    ddde393c2ca2b5d08fb68686377fb042ab128f705024c3a5ea65fe790555a01cccd53811422c4c509332cb512f9d262db3dabe7c651920ef48c0a2fdfdc8e01e

  • SSDEEP

    12288:ZIny5DYTZI5GPyg8fHFpNUX07qbPmrVFVgmvpfNDt:VUTZaGagiHFt72AVgmv

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\1a53eddeb5850b41fd327841c2df2d1cb1739d8abfdc4bb28ea7f727fca5bbbc.exe
    "C:\Users\Admin\AppData\Local\Temp\1a53eddeb5850b41fd327841c2df2d1cb1739d8abfdc4bb28ea7f727fca5bbbc.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:1428
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:208
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4572
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1704
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:3640
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3692
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3244
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1728
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4192
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3484
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:388
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2912
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:2676
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2328

          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:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsn5A09.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            48eb6131720b4b9bb59cc9d6358f709c

            SHA1

            d2f8084f18278e820e1171d990a03aca6de3fcb8

            SHA256

            7fafbdd97c7c2cefa5bdba5a5a0d592f40122df94c99b0eaac9adb9094be68c3

            SHA512

            d9b909b2501eef334dddd5365b07a8ab3c36d7c8f636a1d14644a9765fa78b732bbb56116e92a00060fc9cb1b45b6cc77a1fbc9f54f60f00118dd6e407e680e0

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

            106KB

            MD5

            48eb6131720b4b9bb59cc9d6358f709c

            SHA1

            d2f8084f18278e820e1171d990a03aca6de3fcb8

            SHA256

            7fafbdd97c7c2cefa5bdba5a5a0d592f40122df94c99b0eaac9adb9094be68c3

            SHA512

            d9b909b2501eef334dddd5365b07a8ab3c36d7c8f636a1d14644a9765fa78b732bbb56116e92a00060fc9cb1b45b6cc77a1fbc9f54f60f00118dd6e407e680e0

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

            106KB

            MD5

            48eb6131720b4b9bb59cc9d6358f709c

            SHA1

            d2f8084f18278e820e1171d990a03aca6de3fcb8

            SHA256

            7fafbdd97c7c2cefa5bdba5a5a0d592f40122df94c99b0eaac9adb9094be68c3

            SHA512

            d9b909b2501eef334dddd5365b07a8ab3c36d7c8f636a1d14644a9765fa78b732bbb56116e92a00060fc9cb1b45b6cc77a1fbc9f54f60f00118dd6e407e680e0

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

            106KB

            MD5

            48eb6131720b4b9bb59cc9d6358f709c

            SHA1

            d2f8084f18278e820e1171d990a03aca6de3fcb8

            SHA256

            7fafbdd97c7c2cefa5bdba5a5a0d592f40122df94c99b0eaac9adb9094be68c3

            SHA512

            d9b909b2501eef334dddd5365b07a8ab3c36d7c8f636a1d14644a9765fa78b732bbb56116e92a00060fc9cb1b45b6cc77a1fbc9f54f60f00118dd6e407e680e0

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

            244KB

            MD5

            54a293f4c7480cc5fd1dfbc8ccb2b854

            SHA1

            a4f7748403cc0237a949862bc8cca16372f261fe

            SHA256

            3e20901cb18ffcf36c700adb08caef35ce48653113a73565c4a1a7f713214916

            SHA512

            1b8dba8ed42b60baf2721151c18ea461daa2b89371910e3e0695d0d8969853ed3a31ecb92e2bdd24fd4e5d2c91156e2967b81d556b928bd5747ec90ce2debc45

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

            244KB

            MD5

            54a293f4c7480cc5fd1dfbc8ccb2b854

            SHA1

            a4f7748403cc0237a949862bc8cca16372f261fe

            SHA256

            3e20901cb18ffcf36c700adb08caef35ce48653113a73565c4a1a7f713214916

            SHA512

            1b8dba8ed42b60baf2721151c18ea461daa2b89371910e3e0695d0d8969853ed3a31ecb92e2bdd24fd4e5d2c91156e2967b81d556b928bd5747ec90ce2debc45

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

            244KB

            MD5

            54a293f4c7480cc5fd1dfbc8ccb2b854

            SHA1

            a4f7748403cc0237a949862bc8cca16372f261fe

            SHA256

            3e20901cb18ffcf36c700adb08caef35ce48653113a73565c4a1a7f713214916

            SHA512

            1b8dba8ed42b60baf2721151c18ea461daa2b89371910e3e0695d0d8969853ed3a31ecb92e2bdd24fd4e5d2c91156e2967b81d556b928bd5747ec90ce2debc45

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

            108KB

            MD5

            dc495c462e4de0d6a14c18842fdc6873

            SHA1

            7bc30f0e3bb1c256df5cabe4ec1bac7db9c0c150

            SHA256

            a0cac177a3b59bc9d23bce420c6c4a67e364174e0f3d37db114ac3a3d2e8eddb

            SHA512

            5248a70af8cc76a7ad731910648f34e4478db6aea73404abdbd394ddc6dd85274c8dd9304fdb1d429f0e5facbe25c959e5d47b6af9770193f252d415cf4d22f7

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

            108KB

            MD5

            dc495c462e4de0d6a14c18842fdc6873

            SHA1

            7bc30f0e3bb1c256df5cabe4ec1bac7db9c0c150

            SHA256

            a0cac177a3b59bc9d23bce420c6c4a67e364174e0f3d37db114ac3a3d2e8eddb

            SHA512

            5248a70af8cc76a7ad731910648f34e4478db6aea73404abdbd394ddc6dd85274c8dd9304fdb1d429f0e5facbe25c959e5d47b6af9770193f252d415cf4d22f7

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

            176KB

            MD5

            c7c15f50dec0f5d5764d916a22ce346b

            SHA1

            64ae1682e9ffc0ae8cd185262a3f339e9f3f0880

            SHA256

            05b596b3a08f44fd7b6dcabe9491d18863cb33a9c9f4ae433e512cc321dff225

            SHA512

            d8c8abd7f25b5132a5c20a415594da6438ecbbf04e200f1b23bd60acd3933299f239ff2bba9f7213a6fd1c8cfd83296ef2c385974a32c0ad97ad3c486a42d411

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

            176KB

            MD5

            c7c15f50dec0f5d5764d916a22ce346b

            SHA1

            64ae1682e9ffc0ae8cd185262a3f339e9f3f0880

            SHA256

            05b596b3a08f44fd7b6dcabe9491d18863cb33a9c9f4ae433e512cc321dff225

            SHA512

            d8c8abd7f25b5132a5c20a415594da6438ecbbf04e200f1b23bd60acd3933299f239ff2bba9f7213a6fd1c8cfd83296ef2c385974a32c0ad97ad3c486a42d411

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

            176KB

            MD5

            c7c15f50dec0f5d5764d916a22ce346b

            SHA1

            64ae1682e9ffc0ae8cd185262a3f339e9f3f0880

            SHA256

            05b596b3a08f44fd7b6dcabe9491d18863cb33a9c9f4ae433e512cc321dff225

            SHA512

            d8c8abd7f25b5132a5c20a415594da6438ecbbf04e200f1b23bd60acd3933299f239ff2bba9f7213a6fd1c8cfd83296ef2c385974a32c0ad97ad3c486a42d411

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

            158KB

            MD5

            353f01fcc17cdf6a88e9e31df9a63503

            SHA1

            eb292e4517d970e398721f6b6c885d2265c29af8

            SHA256

            ac790e2f682d09452ab3e1802cd0d04ce5f55b697a939703e37c62e0b09b06e8

            SHA512

            b80650598826f6ade56e27a3e5fe4b784a29a7d0f10be0da3b08ede64a8ed62823cbe492ba35087496263a22ca37a9d1b038572cc52799e29d5c4ae3d7822043

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

            158KB

            MD5

            353f01fcc17cdf6a88e9e31df9a63503

            SHA1

            eb292e4517d970e398721f6b6c885d2265c29af8

            SHA256

            ac790e2f682d09452ab3e1802cd0d04ce5f55b697a939703e37c62e0b09b06e8

            SHA512

            b80650598826f6ade56e27a3e5fe4b784a29a7d0f10be0da3b08ede64a8ed62823cbe492ba35087496263a22ca37a9d1b038572cc52799e29d5c4ae3d7822043

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

            158KB

            MD5

            353f01fcc17cdf6a88e9e31df9a63503

            SHA1

            eb292e4517d970e398721f6b6c885d2265c29af8

            SHA256

            ac790e2f682d09452ab3e1802cd0d04ce5f55b697a939703e37c62e0b09b06e8

            SHA512

            b80650598826f6ade56e27a3e5fe4b784a29a7d0f10be0da3b08ede64a8ed62823cbe492ba35087496263a22ca37a9d1b038572cc52799e29d5c4ae3d7822043

          • memory/208-136-0x0000000000000000-mapping.dmp
          • memory/388-165-0x0000000000000000-mapping.dmp
          • memory/1428-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1428-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1704-140-0x0000000000000000-mapping.dmp
          • memory/1728-153-0x0000000000000000-mapping.dmp
          • memory/2912-166-0x0000000000000000-mapping.dmp
          • memory/3244-147-0x0000000000000000-mapping.dmp
          • memory/3484-159-0x0000000000000000-mapping.dmp
          • memory/3640-141-0x0000000000000000-mapping.dmp
          • memory/3692-142-0x0000000000000000-mapping.dmp
          • memory/4192-158-0x0000000000000000-mapping.dmp
          • memory/4572-137-0x0000000000000000-mapping.dmp