Analysis

  • max time kernel
    93s
  • max time network
    133s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:29

General

  • Target

    387ac7d5e779d2d0344c3a46c55df84ec85f0c14ed8910367bd35ad8a0b20ab2.exe

  • Size

    602KB

  • MD5

    978085235b4925e36ccf8015dabfe05a

  • SHA1

    6061ed687d5c7b1eb22ba2d73e5083fc6aed3c99

  • SHA256

    387ac7d5e779d2d0344c3a46c55df84ec85f0c14ed8910367bd35ad8a0b20ab2

  • SHA512

    1d5cfdb8ef8d8bc607315bbae58c3e42ce63d4122a263873ed6cc570ec6722041118cb9cd4d7797dd69befd488c98cf8e2e32c2a4f7c8add73686af628b23539

  • SSDEEP

    12288:dIny5DYTuoxBg3+naxwvxtVGf9Wyg+AMf+wAib6NMxOAwuLpgXXW0I:JUTuofg38aSvxTGo+jiuFwudD0

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\387ac7d5e779d2d0344c3a46c55df84ec85f0c14ed8910367bd35ad8a0b20ab2.exe
    "C:\Users\Admin\AppData\Local\Temp\387ac7d5e779d2d0344c3a46c55df84ec85f0c14ed8910367bd35ad8a0b20ab2.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:4284
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4348
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:596
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4592
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1944
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2552
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1424
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4776
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3216
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4608
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1636
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4684
          • 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:2616
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4712

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6fe0706cb277e6bbdf75c79fef4be318

            SHA1

            29e3a8b9127a635bb1457f4f93acb469d37d8c5e

            SHA256

            6396f2858459e82e5de56be4b60e67588a807c8a28dc3849b1362c3f872736c7

            SHA512

            c1a12402b501aaf565c54e3d5e588bee1425afdf0ff17ea45ae895d989638ebf5fb03bb97dc98e12e3c768eb86c102613007b4b24f27e11ce254987dded7d03d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6fe0706cb277e6bbdf75c79fef4be318

            SHA1

            29e3a8b9127a635bb1457f4f93acb469d37d8c5e

            SHA256

            6396f2858459e82e5de56be4b60e67588a807c8a28dc3849b1362c3f872736c7

            SHA512

            c1a12402b501aaf565c54e3d5e588bee1425afdf0ff17ea45ae895d989638ebf5fb03bb97dc98e12e3c768eb86c102613007b4b24f27e11ce254987dded7d03d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6fe0706cb277e6bbdf75c79fef4be318

            SHA1

            29e3a8b9127a635bb1457f4f93acb469d37d8c5e

            SHA256

            6396f2858459e82e5de56be4b60e67588a807c8a28dc3849b1362c3f872736c7

            SHA512

            c1a12402b501aaf565c54e3d5e588bee1425afdf0ff17ea45ae895d989638ebf5fb03bb97dc98e12e3c768eb86c102613007b4b24f27e11ce254987dded7d03d

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            6fe0706cb277e6bbdf75c79fef4be318

            SHA1

            29e3a8b9127a635bb1457f4f93acb469d37d8c5e

            SHA256

            6396f2858459e82e5de56be4b60e67588a807c8a28dc3849b1362c3f872736c7

            SHA512

            c1a12402b501aaf565c54e3d5e588bee1425afdf0ff17ea45ae895d989638ebf5fb03bb97dc98e12e3c768eb86c102613007b4b24f27e11ce254987dded7d03d

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5479409514dba0e36b970ac3a2d80993

            SHA1

            1599b8678befee00d168b3112351e57ef71d7b4d

            SHA256

            d18f3ec8b532127fb80df369b4a2c9b57f375a6ac80ca174c234709b0d60dc53

            SHA512

            be7f6fd9cafe792b059ad09ab078519c4d8ad40f6533d0f5ddbd1b9dd63142f60442bf2920b7e96ea4fb51082a4826f6af97a233e400f7545270d6a5edd76c8e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5479409514dba0e36b970ac3a2d80993

            SHA1

            1599b8678befee00d168b3112351e57ef71d7b4d

            SHA256

            d18f3ec8b532127fb80df369b4a2c9b57f375a6ac80ca174c234709b0d60dc53

            SHA512

            be7f6fd9cafe792b059ad09ab078519c4d8ad40f6533d0f5ddbd1b9dd63142f60442bf2920b7e96ea4fb51082a4826f6af97a233e400f7545270d6a5edd76c8e

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            5479409514dba0e36b970ac3a2d80993

            SHA1

            1599b8678befee00d168b3112351e57ef71d7b4d

            SHA256

            d18f3ec8b532127fb80df369b4a2c9b57f375a6ac80ca174c234709b0d60dc53

            SHA512

            be7f6fd9cafe792b059ad09ab078519c4d8ad40f6533d0f5ddbd1b9dd63142f60442bf2920b7e96ea4fb51082a4826f6af97a233e400f7545270d6a5edd76c8e

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8f8016ccfd69d6dc69561a7accd32d5c

            SHA1

            4e5fb97e5dba688a0c79e72a4522b913de77a02c

            SHA256

            23d31ba4ed815275fd225a962e4345612afa9b6c8ded849b484a0a266d04fb77

            SHA512

            8ce3e88554e0f7023a06ac80d26557da51d7d6d834cd1c3f26d64cd0a75aa27ccec9fe5b9509563a6343b712fc1280b274a1ab635ca4551725f49bb74c5ca79c

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            8f8016ccfd69d6dc69561a7accd32d5c

            SHA1

            4e5fb97e5dba688a0c79e72a4522b913de77a02c

            SHA256

            23d31ba4ed815275fd225a962e4345612afa9b6c8ded849b484a0a266d04fb77

            SHA512

            8ce3e88554e0f7023a06ac80d26557da51d7d6d834cd1c3f26d64cd0a75aa27ccec9fe5b9509563a6343b712fc1280b274a1ab635ca4551725f49bb74c5ca79c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            318bbec074e1872ddf8734393ede8a67

            SHA1

            f40cf0d06fd4237410cb6d5517af30f1e9e464ec

            SHA256

            1d3ab842b054c8daae0802a8b137b917cab0e3920ce111249971421c47149cde

            SHA512

            b8fba4fd4fe179a305fdce4da21fa32aa9fe1e18b1e6262149ea9197d8a0d2224edeabb9af8d70a01373d9c5e2871194867cb18db14cfaf7531bc1773fc3efb7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            318bbec074e1872ddf8734393ede8a67

            SHA1

            f40cf0d06fd4237410cb6d5517af30f1e9e464ec

            SHA256

            1d3ab842b054c8daae0802a8b137b917cab0e3920ce111249971421c47149cde

            SHA512

            b8fba4fd4fe179a305fdce4da21fa32aa9fe1e18b1e6262149ea9197d8a0d2224edeabb9af8d70a01373d9c5e2871194867cb18db14cfaf7531bc1773fc3efb7

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            318bbec074e1872ddf8734393ede8a67

            SHA1

            f40cf0d06fd4237410cb6d5517af30f1e9e464ec

            SHA256

            1d3ab842b054c8daae0802a8b137b917cab0e3920ce111249971421c47149cde

            SHA512

            b8fba4fd4fe179a305fdce4da21fa32aa9fe1e18b1e6262149ea9197d8a0d2224edeabb9af8d70a01373d9c5e2871194867cb18db14cfaf7531bc1773fc3efb7

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            54bcb4fa32eb6802fe8146646bc78bf2

            SHA1

            f2e111287be7f249a08f34f9d8084e93d881b10e

            SHA256

            d345c3712119d4025e3377c877e8575a7a3ae639a2f6366bb41c6db90d3aa6ae

            SHA512

            55adff69ccbc0c92d0cea82fc1b40f8d1c4be6562d55f1f59124baec16d613ea0c76babdaef992e96472692d46c86151bcdfcfc9a9e59c19e900d7249e30da63

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            54bcb4fa32eb6802fe8146646bc78bf2

            SHA1

            f2e111287be7f249a08f34f9d8084e93d881b10e

            SHA256

            d345c3712119d4025e3377c877e8575a7a3ae639a2f6366bb41c6db90d3aa6ae

            SHA512

            55adff69ccbc0c92d0cea82fc1b40f8d1c4be6562d55f1f59124baec16d613ea0c76babdaef992e96472692d46c86151bcdfcfc9a9e59c19e900d7249e30da63

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            54bcb4fa32eb6802fe8146646bc78bf2

            SHA1

            f2e111287be7f249a08f34f9d8084e93d881b10e

            SHA256

            d345c3712119d4025e3377c877e8575a7a3ae639a2f6366bb41c6db90d3aa6ae

            SHA512

            55adff69ccbc0c92d0cea82fc1b40f8d1c4be6562d55f1f59124baec16d613ea0c76babdaef992e96472692d46c86151bcdfcfc9a9e59c19e900d7249e30da63

          • memory/596-137-0x0000000000000000-mapping.dmp

          • memory/1424-147-0x0000000000000000-mapping.dmp

          • memory/1636-165-0x0000000000000000-mapping.dmp

          • memory/1944-141-0x0000000000000000-mapping.dmp

          • memory/2552-142-0x0000000000000000-mapping.dmp

          • memory/3216-158-0x0000000000000000-mapping.dmp

          • memory/4284-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4284-168-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/4348-136-0x0000000000000000-mapping.dmp

          • memory/4592-140-0x0000000000000000-mapping.dmp

          • memory/4608-159-0x0000000000000000-mapping.dmp

          • memory/4684-166-0x0000000000000000-mapping.dmp

          • memory/4776-153-0x0000000000000000-mapping.dmp