Analysis

  • max time kernel
    120s
  • max time network
    35s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:33

General

  • Target

    0f06ee07972e91c22883b5bc010200ee5e28cfb7148aedfff0729040260ee422.exe

  • Size

    603KB

  • MD5

    a41d70bc9a2a94a62d1779d889fa8abd

  • SHA1

    7cd9fc5a43ea56eb47e28eefd1ed29d71269c65d

  • SHA256

    0f06ee07972e91c22883b5bc010200ee5e28cfb7148aedfff0729040260ee422

  • SHA512

    fa57fafee0e010e638c133803a3872782e5d9b27785edce8d97b0c633e8c845c8f0520011ccd34b7f1767b72e6880615a3f6792803c9aea7a1a454ef1040f556

  • SSDEEP

    12288:sIny5DYTfImSKBflG/WmQ4KnQ1cOUSf3dst0EGo0WdXs1:qUTflSK2/WU4QeOUQe0EbpQ

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\0f06ee07972e91c22883b5bc010200ee5e28cfb7148aedfff0729040260ee422.exe
    "C:\Users\Admin\AppData\Local\Temp\0f06ee07972e91c22883b5bc010200ee5e28cfb7148aedfff0729040260ee422.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:1216
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:564
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:680
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:472
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:756
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1172
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1596
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1960
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:864
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1604
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2016
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:828
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1184
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1292

          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

            b803c1df01e4d70c6dd224e96f66241f

            SHA1

            814f34cb171855d516f3f5f7f2dfc16b571e3eda

            SHA256

            918bb27a6559b3b68e9721d15e121674cc071fc668ace961486276278388bda2

            SHA512

            842a51ff9f4c141f24d2c7a18dcab376a56ad7725841b876698892cea3724712041a705e078cb2551416a13b8fb565951a213f8385ad9a5e72440bc356efa10b

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

            244KB

            MD5

            a2d9cff0bfc6ae5425b9c77c7f10e489

            SHA1

            5693db9a5c01d684028e741018d725a1cdea74ed

            SHA256

            fdece10512ce51a01c2815a6c38e6e1af8931dd4580fb4a7cc44a94c8690cf96

            SHA512

            59ff86c64b96e740b7d52103ac5b81e1f782439f94aeb7373e5b0078dea30564f834fd955cca503a483e0548b1c8f787b7c22791ff0da90f1b074211d16af64f

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

            108KB

            MD5

            0a16985eef7fe5e25408b24db264f660

            SHA1

            f374ad9b600ef30af02cce8c556ed1840de2aac3

            SHA256

            6803f6be2c682144a92cc2c5df4928a46a0999e182f65aea122c29f74abb2d94

            SHA512

            127213b43e3f0e7425fb20c2986dc26c6dc0fdd60dc3d28e6a686abac3712210f4605fba8cef57961726592fde425bfcd12b27857b18971980d062b56458f0c6

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

            176KB

            MD5

            35525bdb9a49ff5869bffb2daf1e98c7

            SHA1

            709bb0cdc43ab39acc6c87b08ea2fb1390fc124e

            SHA256

            f651628423e0b5118945a1ebd40d1881d8ec2981afe5b69c300a14f9eb381ec4

            SHA512

            b961fbbae95819343dd6a7bc2bed9de94612469698b557de27173d189daceb0ba6ca88b1e600e961ef50f2ed11da431aa06b5a7a7d323252e143cdde2aeec49f

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

            176KB

            MD5

            35525bdb9a49ff5869bffb2daf1e98c7

            SHA1

            709bb0cdc43ab39acc6c87b08ea2fb1390fc124e

            SHA256

            f651628423e0b5118945a1ebd40d1881d8ec2981afe5b69c300a14f9eb381ec4

            SHA512

            b961fbbae95819343dd6a7bc2bed9de94612469698b557de27173d189daceb0ba6ca88b1e600e961ef50f2ed11da431aa06b5a7a7d323252e143cdde2aeec49f

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

            159KB

            MD5

            47dc75c1ba81ddae6a31809ef3dffbed

            SHA1

            5e3f4b8fd8fb1a02e4261509043f961d59ee1a40

            SHA256

            76ef4984367b90df2c73319db343eb2a5aea4576d2d20655d9263c1a4d8a0053

            SHA512

            03b7c0d44562d2974753ceed82f12020f5560a36ddde6d211b61fa60a2efd293855c6ad5218c32fe00afb6509bc2150dd0d332f09c88a406507ab1d52129c478

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

            159KB

            MD5

            47dc75c1ba81ddae6a31809ef3dffbed

            SHA1

            5e3f4b8fd8fb1a02e4261509043f961d59ee1a40

            SHA256

            76ef4984367b90df2c73319db343eb2a5aea4576d2d20655d9263c1a4d8a0053

            SHA512

            03b7c0d44562d2974753ceed82f12020f5560a36ddde6d211b61fa60a2efd293855c6ad5218c32fe00afb6509bc2150dd0d332f09c88a406507ab1d52129c478

          • \Users\Admin\AppData\Local\Temp\nsyE034.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyE034.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE034.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE034.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyE034.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            b803c1df01e4d70c6dd224e96f66241f

            SHA1

            814f34cb171855d516f3f5f7f2dfc16b571e3eda

            SHA256

            918bb27a6559b3b68e9721d15e121674cc071fc668ace961486276278388bda2

            SHA512

            842a51ff9f4c141f24d2c7a18dcab376a56ad7725841b876698892cea3724712041a705e078cb2551416a13b8fb565951a213f8385ad9a5e72440bc356efa10b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            b803c1df01e4d70c6dd224e96f66241f

            SHA1

            814f34cb171855d516f3f5f7f2dfc16b571e3eda

            SHA256

            918bb27a6559b3b68e9721d15e121674cc071fc668ace961486276278388bda2

            SHA512

            842a51ff9f4c141f24d2c7a18dcab376a56ad7725841b876698892cea3724712041a705e078cb2551416a13b8fb565951a213f8385ad9a5e72440bc356efa10b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            b803c1df01e4d70c6dd224e96f66241f

            SHA1

            814f34cb171855d516f3f5f7f2dfc16b571e3eda

            SHA256

            918bb27a6559b3b68e9721d15e121674cc071fc668ace961486276278388bda2

            SHA512

            842a51ff9f4c141f24d2c7a18dcab376a56ad7725841b876698892cea3724712041a705e078cb2551416a13b8fb565951a213f8385ad9a5e72440bc356efa10b

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            a2d9cff0bfc6ae5425b9c77c7f10e489

            SHA1

            5693db9a5c01d684028e741018d725a1cdea74ed

            SHA256

            fdece10512ce51a01c2815a6c38e6e1af8931dd4580fb4a7cc44a94c8690cf96

            SHA512

            59ff86c64b96e740b7d52103ac5b81e1f782439f94aeb7373e5b0078dea30564f834fd955cca503a483e0548b1c8f787b7c22791ff0da90f1b074211d16af64f

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            a2d9cff0bfc6ae5425b9c77c7f10e489

            SHA1

            5693db9a5c01d684028e741018d725a1cdea74ed

            SHA256

            fdece10512ce51a01c2815a6c38e6e1af8931dd4580fb4a7cc44a94c8690cf96

            SHA512

            59ff86c64b96e740b7d52103ac5b81e1f782439f94aeb7373e5b0078dea30564f834fd955cca503a483e0548b1c8f787b7c22791ff0da90f1b074211d16af64f

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            0a16985eef7fe5e25408b24db264f660

            SHA1

            f374ad9b600ef30af02cce8c556ed1840de2aac3

            SHA256

            6803f6be2c682144a92cc2c5df4928a46a0999e182f65aea122c29f74abb2d94

            SHA512

            127213b43e3f0e7425fb20c2986dc26c6dc0fdd60dc3d28e6a686abac3712210f4605fba8cef57961726592fde425bfcd12b27857b18971980d062b56458f0c6

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            35525bdb9a49ff5869bffb2daf1e98c7

            SHA1

            709bb0cdc43ab39acc6c87b08ea2fb1390fc124e

            SHA256

            f651628423e0b5118945a1ebd40d1881d8ec2981afe5b69c300a14f9eb381ec4

            SHA512

            b961fbbae95819343dd6a7bc2bed9de94612469698b557de27173d189daceb0ba6ca88b1e600e961ef50f2ed11da431aa06b5a7a7d323252e143cdde2aeec49f

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            47dc75c1ba81ddae6a31809ef3dffbed

            SHA1

            5e3f4b8fd8fb1a02e4261509043f961d59ee1a40

            SHA256

            76ef4984367b90df2c73319db343eb2a5aea4576d2d20655d9263c1a4d8a0053

            SHA512

            03b7c0d44562d2974753ceed82f12020f5560a36ddde6d211b61fa60a2efd293855c6ad5218c32fe00afb6509bc2150dd0d332f09c88a406507ab1d52129c478

          • memory/472-60-0x0000000000000000-mapping.dmp
          • memory/564-57-0x0000000000000000-mapping.dmp
          • memory/680-58-0x0000000000000000-mapping.dmp
          • memory/756-61-0x0000000000000000-mapping.dmp
          • memory/828-88-0x0000000000000000-mapping.dmp
          • memory/864-81-0x0000000000000000-mapping.dmp
          • memory/1172-64-0x0000000000000000-mapping.dmp
          • memory/1216-54-0x0000000075011000-0x0000000075013000-memory.dmp
            Filesize

            8KB

          • memory/1216-62-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1216-79-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1216-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1596-70-0x0000000000000000-mapping.dmp
          • memory/1604-82-0x0000000000000000-mapping.dmp
          • memory/1960-76-0x0000000000000000-mapping.dmp
          • memory/2016-87-0x0000000000000000-mapping.dmp