Analysis

  • max time kernel
    189s
  • max time network
    193s
  • 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 10:11

General

  • Target

    d59f6daaa2d93117a986e1644bd9158817cc52afbbc6125092bc3dffa415c2a7.exe

  • Size

    603KB

  • MD5

    7597103a4ac5bc2732a021344b0616ed

  • SHA1

    4c74b6482a32ade7c0665008b1c400aba203ccff

  • SHA256

    d59f6daaa2d93117a986e1644bd9158817cc52afbbc6125092bc3dffa415c2a7

  • SHA512

    2e976ecc87f8ec637a3d245c960b15910d4b4e8a418c5d6b0bda3d49e2f41bf8f9ef70ab6280ea5f41a95c01235b12429c8ce95d128ab46f81afbed47ecb1304

  • SSDEEP

    12288:TIny5DYTMIaoMRHYzYuPUQC+aCZFFEZQSg:7UTMlogtu8QC+tKZQSg

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\d59f6daaa2d93117a986e1644bd9158817cc52afbbc6125092bc3dffa415c2a7.exe
    "C:\Users\Admin\AppData\Local\Temp\d59f6daaa2d93117a986e1644bd9158817cc52afbbc6125092bc3dffa415c2a7.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:3896
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3532
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4304
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:756
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:5044
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1604
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3844
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:2268
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4504
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:5116
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1572
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1520
          • 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:2748
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1996

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

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          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsh6479.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe55d98a23350b9274d418dcc3ed352c

            SHA1

            5335e60949d49a5825cca5353865150000cd4593

            SHA256

            3ff84febce34544c9b8de41bb1b48cab865a17167d7e60a4172769aabd9c11d8

            SHA512

            64beb9bdaa87e6730753bf56131fddec0eb893324b8ae38a171b6e3a0eb8cde3b3b538fd68c014837966d8721ef4f60800fdfe451230bb91d8d18f49efe49220

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe55d98a23350b9274d418dcc3ed352c

            SHA1

            5335e60949d49a5825cca5353865150000cd4593

            SHA256

            3ff84febce34544c9b8de41bb1b48cab865a17167d7e60a4172769aabd9c11d8

            SHA512

            64beb9bdaa87e6730753bf56131fddec0eb893324b8ae38a171b6e3a0eb8cde3b3b538fd68c014837966d8721ef4f60800fdfe451230bb91d8d18f49efe49220

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe55d98a23350b9274d418dcc3ed352c

            SHA1

            5335e60949d49a5825cca5353865150000cd4593

            SHA256

            3ff84febce34544c9b8de41bb1b48cab865a17167d7e60a4172769aabd9c11d8

            SHA512

            64beb9bdaa87e6730753bf56131fddec0eb893324b8ae38a171b6e3a0eb8cde3b3b538fd68c014837966d8721ef4f60800fdfe451230bb91d8d18f49efe49220

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            fe55d98a23350b9274d418dcc3ed352c

            SHA1

            5335e60949d49a5825cca5353865150000cd4593

            SHA256

            3ff84febce34544c9b8de41bb1b48cab865a17167d7e60a4172769aabd9c11d8

            SHA512

            64beb9bdaa87e6730753bf56131fddec0eb893324b8ae38a171b6e3a0eb8cde3b3b538fd68c014837966d8721ef4f60800fdfe451230bb91d8d18f49efe49220

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            94e3aac4049a4c23283f70f83d0bbefa

            SHA1

            c743cafc6c150f31eb8f8540ccb4ab50a390dcf7

            SHA256

            dd4bf8f69aa16a7b12ff90e8b150d4ea66d1f7d7b6928bf6176b1a386344eb8c

            SHA512

            139bde0db8afe771744cdd1d43b1635d9cf4afd06b004bec85d21a5811176241c3eb015b1f3c7624c8a0fbbff80fb278ef0bdbd4bd5a405f62f9c83042a97c25

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            94e3aac4049a4c23283f70f83d0bbefa

            SHA1

            c743cafc6c150f31eb8f8540ccb4ab50a390dcf7

            SHA256

            dd4bf8f69aa16a7b12ff90e8b150d4ea66d1f7d7b6928bf6176b1a386344eb8c

            SHA512

            139bde0db8afe771744cdd1d43b1635d9cf4afd06b004bec85d21a5811176241c3eb015b1f3c7624c8a0fbbff80fb278ef0bdbd4bd5a405f62f9c83042a97c25

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            94e3aac4049a4c23283f70f83d0bbefa

            SHA1

            c743cafc6c150f31eb8f8540ccb4ab50a390dcf7

            SHA256

            dd4bf8f69aa16a7b12ff90e8b150d4ea66d1f7d7b6928bf6176b1a386344eb8c

            SHA512

            139bde0db8afe771744cdd1d43b1635d9cf4afd06b004bec85d21a5811176241c3eb015b1f3c7624c8a0fbbff80fb278ef0bdbd4bd5a405f62f9c83042a97c25

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fe679b23035aed136d008feb4c9f3aab

            SHA1

            8ea4b829a763f0f7df30e98bb18303c6518f92d6

            SHA256

            bf9361683e57e41fe595acc2216916dba4ad88ef49a76301eee593443d6b8a65

            SHA512

            463bec2cbc44a586e32358d9805164ee6239cedfad6abcb2077a7373ca70158343b938ca3a9ead3ddcf7fb6783559415a04d9c884096f082fa502426f29bb5c6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            fe679b23035aed136d008feb4c9f3aab

            SHA1

            8ea4b829a763f0f7df30e98bb18303c6518f92d6

            SHA256

            bf9361683e57e41fe595acc2216916dba4ad88ef49a76301eee593443d6b8a65

            SHA512

            463bec2cbc44a586e32358d9805164ee6239cedfad6abcb2077a7373ca70158343b938ca3a9ead3ddcf7fb6783559415a04d9c884096f082fa502426f29bb5c6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6c9c2ae1a2034ef588ba2890dfc5f1f5

            SHA1

            209698ebf5c6f682f08fff2804a0081852ced184

            SHA256

            b832529ec1c9053346e258ccfa225262380a02e3ce0bf046b78ea8d4a934c667

            SHA512

            769026401d41d0ddbd12ba6d549417440e11fab46fd3139f388fd4bb18089701172d1794dd68db3196e66b9f36c012d3b3b3a03112465f43e4fc06e46713fa39

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6c9c2ae1a2034ef588ba2890dfc5f1f5

            SHA1

            209698ebf5c6f682f08fff2804a0081852ced184

            SHA256

            b832529ec1c9053346e258ccfa225262380a02e3ce0bf046b78ea8d4a934c667

            SHA512

            769026401d41d0ddbd12ba6d549417440e11fab46fd3139f388fd4bb18089701172d1794dd68db3196e66b9f36c012d3b3b3a03112465f43e4fc06e46713fa39

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6c9c2ae1a2034ef588ba2890dfc5f1f5

            SHA1

            209698ebf5c6f682f08fff2804a0081852ced184

            SHA256

            b832529ec1c9053346e258ccfa225262380a02e3ce0bf046b78ea8d4a934c667

            SHA512

            769026401d41d0ddbd12ba6d549417440e11fab46fd3139f388fd4bb18089701172d1794dd68db3196e66b9f36c012d3b3b3a03112465f43e4fc06e46713fa39

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2a3cd10668f06360cf572a871af47000

            SHA1

            4c456d05db537eb58169e97aa81ea4a77bc4f6ed

            SHA256

            b51b3e9aacefeef8baf0fc6b373d88e139b7a5b04f53ab5d3cabcc0cf90b7f34

            SHA512

            15da6d3333f158ecd119735307739ac1f3e689200e9a20ed0991d8c426d43ff10394b1352caf69f93e44256085e9716ed20b3731fdc44aa898453afed6baded8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2a3cd10668f06360cf572a871af47000

            SHA1

            4c456d05db537eb58169e97aa81ea4a77bc4f6ed

            SHA256

            b51b3e9aacefeef8baf0fc6b373d88e139b7a5b04f53ab5d3cabcc0cf90b7f34

            SHA512

            15da6d3333f158ecd119735307739ac1f3e689200e9a20ed0991d8c426d43ff10394b1352caf69f93e44256085e9716ed20b3731fdc44aa898453afed6baded8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2a3cd10668f06360cf572a871af47000

            SHA1

            4c456d05db537eb58169e97aa81ea4a77bc4f6ed

            SHA256

            b51b3e9aacefeef8baf0fc6b373d88e139b7a5b04f53ab5d3cabcc0cf90b7f34

            SHA512

            15da6d3333f158ecd119735307739ac1f3e689200e9a20ed0991d8c426d43ff10394b1352caf69f93e44256085e9716ed20b3731fdc44aa898453afed6baded8

          • memory/756-140-0x0000000000000000-mapping.dmp

          • memory/1520-166-0x0000000000000000-mapping.dmp

          • memory/1572-165-0x0000000000000000-mapping.dmp

          • memory/1604-142-0x0000000000000000-mapping.dmp

          • memory/2268-153-0x0000000000000000-mapping.dmp

          • memory/3532-136-0x0000000000000000-mapping.dmp

          • memory/3844-147-0x0000000000000000-mapping.dmp

          • memory/3896-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/3896-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4304-137-0x0000000000000000-mapping.dmp

          • memory/4504-158-0x0000000000000000-mapping.dmp

          • memory/5044-141-0x0000000000000000-mapping.dmp

          • memory/5116-159-0x0000000000000000-mapping.dmp