Analysis

  • max time kernel
    188s
  • max time network
    194s
  • 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 10:34

General

  • Target

    0a5740744feca98bb5b6ca72c25c6b34d95d3e98b69d3baf916c14c236a363bd.exe

  • Size

    603KB

  • MD5

    6bb1ff61456fe8f5b8a5cb92567366b6

  • SHA1

    326b650614bfb84e3727feed2f79a78b79920417

  • SHA256

    0a5740744feca98bb5b6ca72c25c6b34d95d3e98b69d3baf916c14c236a363bd

  • SHA512

    c21d895a3c7aad849971d260cde0b0faa2060363991e2bac4ab37161389c975eabc8bfdb911f0f8851cb9211d7a7857832b2f02dc00f660d2c9a2e6e3e3b6888

  • SSDEEP

    12288:3Iny5DYTFWdloMNbCY5S0oFNgsHeNRBQOt:fUTcdlJZCQS1FgNRtt

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\0a5740744feca98bb5b6ca72c25c6b34d95d3e98b69d3baf916c14c236a363bd.exe
    "C:\Users\Admin\AppData\Local\Temp\0a5740744feca98bb5b6ca72c25c6b34d95d3e98b69d3baf916c14c236a363bd.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:1972
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2328
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4776
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4472
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4956
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4972
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2424
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1696
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:5056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1964
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4556
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:2540
          • 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:3556
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2864

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            084dbbf2a65984a5bba409c783a5609b

            SHA1

            a1b05a4cf2ed472322f45d702287d7b8ade59113

            SHA256

            f83065abe1df862e4ff4b72331e711e50df7197727cab9ae8d1d2b7a0f679318

            SHA512

            1354d515d24a30f3d969900b91485872bc37d16b184886a2fad2b746b2ac82e28cb03d27acde9a8a4f1b9d9554e4f6ae43b014751eb4fae96aeafe627f3a6669

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            084dbbf2a65984a5bba409c783a5609b

            SHA1

            a1b05a4cf2ed472322f45d702287d7b8ade59113

            SHA256

            f83065abe1df862e4ff4b72331e711e50df7197727cab9ae8d1d2b7a0f679318

            SHA512

            1354d515d24a30f3d969900b91485872bc37d16b184886a2fad2b746b2ac82e28cb03d27acde9a8a4f1b9d9554e4f6ae43b014751eb4fae96aeafe627f3a6669

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            084dbbf2a65984a5bba409c783a5609b

            SHA1

            a1b05a4cf2ed472322f45d702287d7b8ade59113

            SHA256

            f83065abe1df862e4ff4b72331e711e50df7197727cab9ae8d1d2b7a0f679318

            SHA512

            1354d515d24a30f3d969900b91485872bc37d16b184886a2fad2b746b2ac82e28cb03d27acde9a8a4f1b9d9554e4f6ae43b014751eb4fae96aeafe627f3a6669

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            084dbbf2a65984a5bba409c783a5609b

            SHA1

            a1b05a4cf2ed472322f45d702287d7b8ade59113

            SHA256

            f83065abe1df862e4ff4b72331e711e50df7197727cab9ae8d1d2b7a0f679318

            SHA512

            1354d515d24a30f3d969900b91485872bc37d16b184886a2fad2b746b2ac82e28cb03d27acde9a8a4f1b9d9554e4f6ae43b014751eb4fae96aeafe627f3a6669

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0ca8cd7e705fab5c5d5290df6105a488

            SHA1

            51f7e8e0a483906542ce7e2641557a342abfefcd

            SHA256

            d5472542cdfb24047edce03ea9658076a1193f1b124c9b05a72c3300d813e10d

            SHA512

            424a85a7daacf69a17107ea7a6e745295ecc33022485414b92da8b45f8a54c01b06621b7632657568c0ec3a6cfd2bfadc18fa0cb5f95b52b407c940c9ed740b6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0ca8cd7e705fab5c5d5290df6105a488

            SHA1

            51f7e8e0a483906542ce7e2641557a342abfefcd

            SHA256

            d5472542cdfb24047edce03ea9658076a1193f1b124c9b05a72c3300d813e10d

            SHA512

            424a85a7daacf69a17107ea7a6e745295ecc33022485414b92da8b45f8a54c01b06621b7632657568c0ec3a6cfd2bfadc18fa0cb5f95b52b407c940c9ed740b6

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            0ca8cd7e705fab5c5d5290df6105a488

            SHA1

            51f7e8e0a483906542ce7e2641557a342abfefcd

            SHA256

            d5472542cdfb24047edce03ea9658076a1193f1b124c9b05a72c3300d813e10d

            SHA512

            424a85a7daacf69a17107ea7a6e745295ecc33022485414b92da8b45f8a54c01b06621b7632657568c0ec3a6cfd2bfadc18fa0cb5f95b52b407c940c9ed740b6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            302726c2c1a03af10ac0b1365a219ea4

            SHA1

            571fcd9b2746e281707b0661a156e92f3c7e6df6

            SHA256

            2b1d3355f6582f8814b0795ff8f363a1418b0a2b8ef6a2ff2bbbd3b32ea216cf

            SHA512

            af57a89b763fa4ed5aab0acd84fb81d9dee1cc39a5e50ee0f7fd6973b4342e0a909acce7cbb51bafefeb4b7695029715c6b9877c62be0f8b2806c1f430d72df0

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            302726c2c1a03af10ac0b1365a219ea4

            SHA1

            571fcd9b2746e281707b0661a156e92f3c7e6df6

            SHA256

            2b1d3355f6582f8814b0795ff8f363a1418b0a2b8ef6a2ff2bbbd3b32ea216cf

            SHA512

            af57a89b763fa4ed5aab0acd84fb81d9dee1cc39a5e50ee0f7fd6973b4342e0a909acce7cbb51bafefeb4b7695029715c6b9877c62be0f8b2806c1f430d72df0

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8c143828eb232b50790df61944b54abf

            SHA1

            d5d9a11fc7f9e2fc0177f30438f8a305ff753825

            SHA256

            827dd61b50efe926b9ec9010aa1e7c4597b5659a434aced9612299f4deb236d3

            SHA512

            f358c455e644e450fa09efd7699176d39e9f30da6001ce7b9c7d58c8193f5d83f1a57831dd6abe9f370b56271712dcb39e59416eecf774b389095ea1edfbf89b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8c143828eb232b50790df61944b54abf

            SHA1

            d5d9a11fc7f9e2fc0177f30438f8a305ff753825

            SHA256

            827dd61b50efe926b9ec9010aa1e7c4597b5659a434aced9612299f4deb236d3

            SHA512

            f358c455e644e450fa09efd7699176d39e9f30da6001ce7b9c7d58c8193f5d83f1a57831dd6abe9f370b56271712dcb39e59416eecf774b389095ea1edfbf89b

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            8c143828eb232b50790df61944b54abf

            SHA1

            d5d9a11fc7f9e2fc0177f30438f8a305ff753825

            SHA256

            827dd61b50efe926b9ec9010aa1e7c4597b5659a434aced9612299f4deb236d3

            SHA512

            f358c455e644e450fa09efd7699176d39e9f30da6001ce7b9c7d58c8193f5d83f1a57831dd6abe9f370b56271712dcb39e59416eecf774b389095ea1edfbf89b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fc5de135d99d9a1f98c0677d35d82c08

            SHA1

            e9d2e2a64fe784470907903b224fe80abcf269d6

            SHA256

            2365e07a293501513550e3640facfcf61ebf42506cbbc14c4ff71fead5165ed0

            SHA512

            07c4969fa12cae6c0e26ad73ea939a981b515fdcfa386505333e1c3e68395ea10624111d3cf7e42237c6b3a25a1ac8f57347edae2341ed324ef5a8635c266cb4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fc5de135d99d9a1f98c0677d35d82c08

            SHA1

            e9d2e2a64fe784470907903b224fe80abcf269d6

            SHA256

            2365e07a293501513550e3640facfcf61ebf42506cbbc14c4ff71fead5165ed0

            SHA512

            07c4969fa12cae6c0e26ad73ea939a981b515fdcfa386505333e1c3e68395ea10624111d3cf7e42237c6b3a25a1ac8f57347edae2341ed324ef5a8635c266cb4

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            fc5de135d99d9a1f98c0677d35d82c08

            SHA1

            e9d2e2a64fe784470907903b224fe80abcf269d6

            SHA256

            2365e07a293501513550e3640facfcf61ebf42506cbbc14c4ff71fead5165ed0

            SHA512

            07c4969fa12cae6c0e26ad73ea939a981b515fdcfa386505333e1c3e68395ea10624111d3cf7e42237c6b3a25a1ac8f57347edae2341ed324ef5a8635c266cb4

          • memory/1696-154-0x0000000000000000-mapping.dmp

          • memory/1964-160-0x0000000000000000-mapping.dmp

          • memory/1972-153-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1972-133-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1972-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/2328-136-0x0000000000000000-mapping.dmp

          • memory/2424-147-0x0000000000000000-mapping.dmp

          • memory/2540-167-0x0000000000000000-mapping.dmp

          • memory/4472-140-0x0000000000000000-mapping.dmp

          • memory/4556-166-0x0000000000000000-mapping.dmp

          • memory/4776-137-0x0000000000000000-mapping.dmp

          • memory/4956-141-0x0000000000000000-mapping.dmp

          • memory/4972-142-0x0000000000000000-mapping.dmp

          • memory/5056-159-0x0000000000000000-mapping.dmp