Analysis

  • max time kernel
    136s
  • max time network
    145s
  • 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 10:49

General

  • Target

    f510dd9ee1b8924ca238ff34a0307364bd029f0dd726585eb4a84548510b3511.exe

  • Size

    445KB

  • MD5

    ca92d0f2a2ea3eb62c40d1fda142f386

  • SHA1

    f2fb48de20f5dced60bda11490146e96526a66aa

  • SHA256

    f510dd9ee1b8924ca238ff34a0307364bd029f0dd726585eb4a84548510b3511

  • SHA512

    c69b82ed4ada50a2f066f65cb1b557fde9cc19286af3ba608d81e599d175d3fe84eb14b07b55c4e0b3237aeec0db235f682ae59a53fecf9e2a58c8fe00d6183a

  • SSDEEP

    12288:EM6oq4VtxoWD/cVnZruMv9YD4zzJr/YYZTz3:EMIu3cVnoDANr/YYJ3

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\f510dd9ee1b8924ca238ff34a0307364bd029f0dd726585eb4a84548510b3511.exe
    "C:\Users\Admin\AppData\Local\Temp\f510dd9ee1b8924ca238ff34a0307364bd029f0dd726585eb4a84548510b3511.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:4680
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2256
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1612
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:508
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1732
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1868
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3044
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4092
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3628
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1920
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4568
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:424
          • 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:880
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:4260

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8340.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1fc58f5318578eccfe48a0da53441213

            SHA1

            1ce50392f292bd1fac6eee6c628a7629b6b23b72

            SHA256

            12ab5056362d36aa5d6f5d871915b2f60206c1f8e3022e994beb17d405255060

            SHA512

            c3bfa88ac517c19355ee1eae956f83106566aaac2c41355493ff47980d8a28a3631b1b0686c93ffa31ffc6f04fcb350734069fc2d7422a11b22bf9b6dba4262b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1fc58f5318578eccfe48a0da53441213

            SHA1

            1ce50392f292bd1fac6eee6c628a7629b6b23b72

            SHA256

            12ab5056362d36aa5d6f5d871915b2f60206c1f8e3022e994beb17d405255060

            SHA512

            c3bfa88ac517c19355ee1eae956f83106566aaac2c41355493ff47980d8a28a3631b1b0686c93ffa31ffc6f04fcb350734069fc2d7422a11b22bf9b6dba4262b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1fc58f5318578eccfe48a0da53441213

            SHA1

            1ce50392f292bd1fac6eee6c628a7629b6b23b72

            SHA256

            12ab5056362d36aa5d6f5d871915b2f60206c1f8e3022e994beb17d405255060

            SHA512

            c3bfa88ac517c19355ee1eae956f83106566aaac2c41355493ff47980d8a28a3631b1b0686c93ffa31ffc6f04fcb350734069fc2d7422a11b22bf9b6dba4262b

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            1fc58f5318578eccfe48a0da53441213

            SHA1

            1ce50392f292bd1fac6eee6c628a7629b6b23b72

            SHA256

            12ab5056362d36aa5d6f5d871915b2f60206c1f8e3022e994beb17d405255060

            SHA512

            c3bfa88ac517c19355ee1eae956f83106566aaac2c41355493ff47980d8a28a3631b1b0686c93ffa31ffc6f04fcb350734069fc2d7422a11b22bf9b6dba4262b

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3423131374296943cc854af81d4b53fc

            SHA1

            169f3e0769850ffe52c916b8ac7496382f311ab5

            SHA256

            bfcf0decbb7c4786a0a909beff05b5a8e74e062c9a79d6686147fb7b78d67518

            SHA512

            023b51c16b274e241aaea081438225648fd52398b6d3e74efaa96069e51b76a64635e3f22ddddbe9b4215aee985cefb802ca53a839580abde26fcdde2b5be35f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3423131374296943cc854af81d4b53fc

            SHA1

            169f3e0769850ffe52c916b8ac7496382f311ab5

            SHA256

            bfcf0decbb7c4786a0a909beff05b5a8e74e062c9a79d6686147fb7b78d67518

            SHA512

            023b51c16b274e241aaea081438225648fd52398b6d3e74efaa96069e51b76a64635e3f22ddddbe9b4215aee985cefb802ca53a839580abde26fcdde2b5be35f

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            3423131374296943cc854af81d4b53fc

            SHA1

            169f3e0769850ffe52c916b8ac7496382f311ab5

            SHA256

            bfcf0decbb7c4786a0a909beff05b5a8e74e062c9a79d6686147fb7b78d67518

            SHA512

            023b51c16b274e241aaea081438225648fd52398b6d3e74efaa96069e51b76a64635e3f22ddddbe9b4215aee985cefb802ca53a839580abde26fcdde2b5be35f

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2f2474e196639b459efd242e4911d51a

            SHA1

            89fa394f51fb3f2151456d91018e7e2b394edc81

            SHA256

            69508e3761706eaf246808160894780164109a425707d4341cbbe7633b011a2b

            SHA512

            dafd9f0941c976052089cb4be1422fd1483c7ad296b2091380ff041dd94ad8c8b3b0b5da3715ce31379c1cfa2ee0128318fb17146e91c4ea49aeeeabdaef56e6

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            2f2474e196639b459efd242e4911d51a

            SHA1

            89fa394f51fb3f2151456d91018e7e2b394edc81

            SHA256

            69508e3761706eaf246808160894780164109a425707d4341cbbe7633b011a2b

            SHA512

            dafd9f0941c976052089cb4be1422fd1483c7ad296b2091380ff041dd94ad8c8b3b0b5da3715ce31379c1cfa2ee0128318fb17146e91c4ea49aeeeabdaef56e6

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7864d70987fb5cc8d2faacdbd6f442d7

            SHA1

            888c7ae7e129cd92fb996f19c5708b3c999744ec

            SHA256

            d552311942cb49cbb70dc79bcd1fc77dc570f35d494d6b8e304893bf1beaccf6

            SHA512

            b69db8a2422f7ac884b1c29939aaa19a18d6ef20b0541e9e5be37545ef471713d749fb0882c9b9b9a8f943f3aac4cf9378db07cfb2a4c30ffaf799743c9c6e01

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7864d70987fb5cc8d2faacdbd6f442d7

            SHA1

            888c7ae7e129cd92fb996f19c5708b3c999744ec

            SHA256

            d552311942cb49cbb70dc79bcd1fc77dc570f35d494d6b8e304893bf1beaccf6

            SHA512

            b69db8a2422f7ac884b1c29939aaa19a18d6ef20b0541e9e5be37545ef471713d749fb0882c9b9b9a8f943f3aac4cf9378db07cfb2a4c30ffaf799743c9c6e01

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            7864d70987fb5cc8d2faacdbd6f442d7

            SHA1

            888c7ae7e129cd92fb996f19c5708b3c999744ec

            SHA256

            d552311942cb49cbb70dc79bcd1fc77dc570f35d494d6b8e304893bf1beaccf6

            SHA512

            b69db8a2422f7ac884b1c29939aaa19a18d6ef20b0541e9e5be37545ef471713d749fb0882c9b9b9a8f943f3aac4cf9378db07cfb2a4c30ffaf799743c9c6e01

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c9fbcffa9fbc8af3136069c00c3ac619

            SHA1

            890d34b1ed9ca5d58cd6afc8ac8005b59a236c95

            SHA256

            de8547195dcad6e79582c974da002c8192c23c9f8c8908e6ee38cde01042f32b

            SHA512

            33f8ef4560dcbd6bd6d404ce90739d56bd370e697b24ef339a50c03ce5b8ecfa0f9de1def0e960f424225e7c621fdbea2d2b9b78690a31c9f49207276b11a632

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c9fbcffa9fbc8af3136069c00c3ac619

            SHA1

            890d34b1ed9ca5d58cd6afc8ac8005b59a236c95

            SHA256

            de8547195dcad6e79582c974da002c8192c23c9f8c8908e6ee38cde01042f32b

            SHA512

            33f8ef4560dcbd6bd6d404ce90739d56bd370e697b24ef339a50c03ce5b8ecfa0f9de1def0e960f424225e7c621fdbea2d2b9b78690a31c9f49207276b11a632

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            c9fbcffa9fbc8af3136069c00c3ac619

            SHA1

            890d34b1ed9ca5d58cd6afc8ac8005b59a236c95

            SHA256

            de8547195dcad6e79582c974da002c8192c23c9f8c8908e6ee38cde01042f32b

            SHA512

            33f8ef4560dcbd6bd6d404ce90739d56bd370e697b24ef339a50c03ce5b8ecfa0f9de1def0e960f424225e7c621fdbea2d2b9b78690a31c9f49207276b11a632

          • memory/424-165-0x0000000000000000-mapping.dmp

          • memory/508-139-0x0000000000000000-mapping.dmp

          • memory/1612-136-0x0000000000000000-mapping.dmp

          • memory/1732-140-0x0000000000000000-mapping.dmp

          • memory/1868-141-0x0000000000000000-mapping.dmp

          • memory/1920-158-0x0000000000000000-mapping.dmp

          • memory/2256-135-0x0000000000000000-mapping.dmp

          • memory/3044-146-0x0000000000000000-mapping.dmp

          • memory/3628-157-0x0000000000000000-mapping.dmp

          • memory/4092-152-0x0000000000000000-mapping.dmp

          • memory/4568-164-0x0000000000000000-mapping.dmp