Analysis

  • max time kernel
    168s
  • max time network
    173s
  • 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 10:56

General

  • Target

    5b316d11bb0d4f13a917c37d7e9fa518d990cd8218750fff481fd67b26f9fd49.exe

  • Size

    447KB

  • MD5

    e56d2196faf0bf2300b9d21a9d1b647c

  • SHA1

    51cb9314a1656a43e0e49f098f62bd8325385e1d

  • SHA256

    5b316d11bb0d4f13a917c37d7e9fa518d990cd8218750fff481fd67b26f9fd49

  • SHA512

    9bf4056139a220aa5e8993033bdac4f2935704339100e0ad7826989a94eaa1be87865352d8c47f86a7038b775fdf9e8db72794bb65d1523d8c525194f526eda1

  • SSDEEP

    6144:Xzfvvq66GSSgBXyLlFYYTj46IJneEQR2dBKo2dWK3RmoTNvRbPOaOV7ppX7RUgL4:jS6Mdarsne1RMBKxdZVRbGN5pV7mgLTk

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\5b316d11bb0d4f13a917c37d7e9fa518d990cd8218750fff481fd67b26f9fd49.exe
    "C:\Users\Admin\AppData\Local\Temp\5b316d11bb0d4f13a917c37d7e9fa518d990cd8218750fff481fd67b26f9fd49.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:1324
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:456
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2992
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3268
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:852
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4544
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1080
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3564
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4784
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3464
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:812
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1220
          • 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:4284
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:408

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nssDAE6.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            986759fa464e7f020e2c7c62e7c55054

            SHA1

            ee9ff9fa53a255ca9848ad9124b8b593dbdb7339

            SHA256

            5258c0501c9adef023edc2ac0b83d10a2ecc5419d7501196b1624bc650037597

            SHA512

            c835e45c0b595c5932e3ada8270325a3b871842b0323cd141a93d64c17c183e92f95bf1b6da405485154a547086a003dad4a7e81809ab2e8f80d0d0c6a9c733c

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

            106KB

            MD5

            986759fa464e7f020e2c7c62e7c55054

            SHA1

            ee9ff9fa53a255ca9848ad9124b8b593dbdb7339

            SHA256

            5258c0501c9adef023edc2ac0b83d10a2ecc5419d7501196b1624bc650037597

            SHA512

            c835e45c0b595c5932e3ada8270325a3b871842b0323cd141a93d64c17c183e92f95bf1b6da405485154a547086a003dad4a7e81809ab2e8f80d0d0c6a9c733c

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

            106KB

            MD5

            986759fa464e7f020e2c7c62e7c55054

            SHA1

            ee9ff9fa53a255ca9848ad9124b8b593dbdb7339

            SHA256

            5258c0501c9adef023edc2ac0b83d10a2ecc5419d7501196b1624bc650037597

            SHA512

            c835e45c0b595c5932e3ada8270325a3b871842b0323cd141a93d64c17c183e92f95bf1b6da405485154a547086a003dad4a7e81809ab2e8f80d0d0c6a9c733c

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

            106KB

            MD5

            986759fa464e7f020e2c7c62e7c55054

            SHA1

            ee9ff9fa53a255ca9848ad9124b8b593dbdb7339

            SHA256

            5258c0501c9adef023edc2ac0b83d10a2ecc5419d7501196b1624bc650037597

            SHA512

            c835e45c0b595c5932e3ada8270325a3b871842b0323cd141a93d64c17c183e92f95bf1b6da405485154a547086a003dad4a7e81809ab2e8f80d0d0c6a9c733c

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

            244KB

            MD5

            f4844b06f9a13d833e13b897c3ccc594

            SHA1

            edcf95451394f643949c626eb890f7f91b6128c2

            SHA256

            0ca89912519325902f42489f7155f3b5897c8e480ae9f015c4e2468fe4c9ef1e

            SHA512

            a594b8d38581307835ebebbd49058a771569047c587320392df7284ed8415cf5b019b267914df332d5da860117d93c4abbe89a956dbaebdf25fbcd0e445723b0

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

            244KB

            MD5

            f4844b06f9a13d833e13b897c3ccc594

            SHA1

            edcf95451394f643949c626eb890f7f91b6128c2

            SHA256

            0ca89912519325902f42489f7155f3b5897c8e480ae9f015c4e2468fe4c9ef1e

            SHA512

            a594b8d38581307835ebebbd49058a771569047c587320392df7284ed8415cf5b019b267914df332d5da860117d93c4abbe89a956dbaebdf25fbcd0e445723b0

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

            244KB

            MD5

            f4844b06f9a13d833e13b897c3ccc594

            SHA1

            edcf95451394f643949c626eb890f7f91b6128c2

            SHA256

            0ca89912519325902f42489f7155f3b5897c8e480ae9f015c4e2468fe4c9ef1e

            SHA512

            a594b8d38581307835ebebbd49058a771569047c587320392df7284ed8415cf5b019b267914df332d5da860117d93c4abbe89a956dbaebdf25fbcd0e445723b0

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

            108KB

            MD5

            7e7afb8e18c79765d6950cf6f35c0a91

            SHA1

            2a85c7bb7b256dd2a455d16fa13e8ba9e15c522c

            SHA256

            ae267c05755f8142c0d914c86101a3a4805285cab12b40adb8770bb271514010

            SHA512

            5207eb675bb5f79fa4f7d51aab7fbe658409fb9e5c8b37ebca06a60c67d8bd3c33510d58387bc5648438b05e4efc96adfe90a03628254a85fb63f9b337ad5158

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

            108KB

            MD5

            7e7afb8e18c79765d6950cf6f35c0a91

            SHA1

            2a85c7bb7b256dd2a455d16fa13e8ba9e15c522c

            SHA256

            ae267c05755f8142c0d914c86101a3a4805285cab12b40adb8770bb271514010

            SHA512

            5207eb675bb5f79fa4f7d51aab7fbe658409fb9e5c8b37ebca06a60c67d8bd3c33510d58387bc5648438b05e4efc96adfe90a03628254a85fb63f9b337ad5158

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

            176KB

            MD5

            7370f73afcd375c0cb5d3b80a7722d4d

            SHA1

            8dfb8e9282a038631e4b13a02d1b3ae49ce272eb

            SHA256

            5a0b423bc5db0cddef39302b84c545affc7fbc17f6f06c63d13752e51130ada2

            SHA512

            92f8a852586d358a903336b68e3527033131d81d2c40a27023aacdc0bfbdc317b0909575cdc4dd1b2766932ae7245f0c8bd146abdf4cdf4a5b04868b56def43b

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

            176KB

            MD5

            7370f73afcd375c0cb5d3b80a7722d4d

            SHA1

            8dfb8e9282a038631e4b13a02d1b3ae49ce272eb

            SHA256

            5a0b423bc5db0cddef39302b84c545affc7fbc17f6f06c63d13752e51130ada2

            SHA512

            92f8a852586d358a903336b68e3527033131d81d2c40a27023aacdc0bfbdc317b0909575cdc4dd1b2766932ae7245f0c8bd146abdf4cdf4a5b04868b56def43b

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

            176KB

            MD5

            7370f73afcd375c0cb5d3b80a7722d4d

            SHA1

            8dfb8e9282a038631e4b13a02d1b3ae49ce272eb

            SHA256

            5a0b423bc5db0cddef39302b84c545affc7fbc17f6f06c63d13752e51130ada2

            SHA512

            92f8a852586d358a903336b68e3527033131d81d2c40a27023aacdc0bfbdc317b0909575cdc4dd1b2766932ae7245f0c8bd146abdf4cdf4a5b04868b56def43b

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

            158KB

            MD5

            6667748b5343b42ef4ad5dbf1b7440b5

            SHA1

            0959a9b0da3572a338a37e506eeae9e2ff15f127

            SHA256

            dfe11b3240c340a94fc2d9e73c905c8b6ba4d75164cf6f7af76ad646b1335dd8

            SHA512

            87ea95fe5a06fd73ae47c808ae535c93b694cd657fc80816fc9870611f2876cfc86c2f357d3a2326735bea464355a66868641b434425bc5f63ce3e324c49bb50

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

            158KB

            MD5

            6667748b5343b42ef4ad5dbf1b7440b5

            SHA1

            0959a9b0da3572a338a37e506eeae9e2ff15f127

            SHA256

            dfe11b3240c340a94fc2d9e73c905c8b6ba4d75164cf6f7af76ad646b1335dd8

            SHA512

            87ea95fe5a06fd73ae47c808ae535c93b694cd657fc80816fc9870611f2876cfc86c2f357d3a2326735bea464355a66868641b434425bc5f63ce3e324c49bb50

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

            158KB

            MD5

            6667748b5343b42ef4ad5dbf1b7440b5

            SHA1

            0959a9b0da3572a338a37e506eeae9e2ff15f127

            SHA256

            dfe11b3240c340a94fc2d9e73c905c8b6ba4d75164cf6f7af76ad646b1335dd8

            SHA512

            87ea95fe5a06fd73ae47c808ae535c93b694cd657fc80816fc9870611f2876cfc86c2f357d3a2326735bea464355a66868641b434425bc5f63ce3e324c49bb50

          • memory/456-135-0x0000000000000000-mapping.dmp
          • memory/812-164-0x0000000000000000-mapping.dmp
          • memory/852-140-0x0000000000000000-mapping.dmp
          • memory/1080-146-0x0000000000000000-mapping.dmp
          • memory/1220-165-0x0000000000000000-mapping.dmp
          • memory/2992-136-0x0000000000000000-mapping.dmp
          • memory/3268-139-0x0000000000000000-mapping.dmp
          • memory/3464-158-0x0000000000000000-mapping.dmp
          • memory/3564-152-0x0000000000000000-mapping.dmp
          • memory/4544-141-0x0000000000000000-mapping.dmp
          • memory/4784-157-0x0000000000000000-mapping.dmp