Analysis

  • max time kernel
    174s
  • max time network
    169s
  • 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 10:51

General

  • Target

    d874232661c23317d749e240e0d2eb846b3bf26da73b5e8e97e917f70843c913.exe

  • Size

    445KB

  • MD5

    3cc8a3e61c3c7014a18ccc97ab8e436c

  • SHA1

    4217e4f4ea8b51625c0d76501cc971b3c0401814

  • SHA256

    d874232661c23317d749e240e0d2eb846b3bf26da73b5e8e97e917f70843c913

  • SHA512

    9ceca421756f387b0e4b09616bb805ea7dedfd540f181c60f887cdc73cb8a94a38618e0d54d2626823e4f3e63e14c6b5b7bbaf10f5535189e2558ff0114148e7

  • SSDEEP

    12288:for3Ml6YniPM7vp35K0g5Q2/cqBD1IYUzKTc5Kgg7pN:f03qLiPML5jM7/cqBDKjmdjN

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\d874232661c23317d749e240e0d2eb846b3bf26da73b5e8e97e917f70843c913.exe
    "C:\Users\Admin\AppData\Local\Temp\d874232661c23317d749e240e0d2eb846b3bf26da73b5e8e97e917f70843c913.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:3892
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:3360
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:4644
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3736
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4600
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4796
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3108
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:3112
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:4108
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:4624
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2920
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1124
          • 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:3132
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:980

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsz2CAF.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            e04b4bbf463fef95acd46a3476103c68

            SHA1

            af34705ed6fbe53dafc46eadaaf530f475601279

            SHA256

            62efd5bea9f87c29163639d7254f558c04d3d5097c80531879acd243ad803817

            SHA512

            2568942b9aece35f40a6ef92c407c5242fee727dc1d8d933fa6b1dece80d7854ddd273f0e572672a6cb782548da09ddd289c10e0bdbbc4301bfa1c48149d4772

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

            106KB

            MD5

            e04b4bbf463fef95acd46a3476103c68

            SHA1

            af34705ed6fbe53dafc46eadaaf530f475601279

            SHA256

            62efd5bea9f87c29163639d7254f558c04d3d5097c80531879acd243ad803817

            SHA512

            2568942b9aece35f40a6ef92c407c5242fee727dc1d8d933fa6b1dece80d7854ddd273f0e572672a6cb782548da09ddd289c10e0bdbbc4301bfa1c48149d4772

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

            106KB

            MD5

            e04b4bbf463fef95acd46a3476103c68

            SHA1

            af34705ed6fbe53dafc46eadaaf530f475601279

            SHA256

            62efd5bea9f87c29163639d7254f558c04d3d5097c80531879acd243ad803817

            SHA512

            2568942b9aece35f40a6ef92c407c5242fee727dc1d8d933fa6b1dece80d7854ddd273f0e572672a6cb782548da09ddd289c10e0bdbbc4301bfa1c48149d4772

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

            106KB

            MD5

            e04b4bbf463fef95acd46a3476103c68

            SHA1

            af34705ed6fbe53dafc46eadaaf530f475601279

            SHA256

            62efd5bea9f87c29163639d7254f558c04d3d5097c80531879acd243ad803817

            SHA512

            2568942b9aece35f40a6ef92c407c5242fee727dc1d8d933fa6b1dece80d7854ddd273f0e572672a6cb782548da09ddd289c10e0bdbbc4301bfa1c48149d4772

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

            241KB

            MD5

            4b8ae3c9e0316a945b10532e8323bda0

            SHA1

            156d219ad4dd93c0c36860b2c2d410c75cd33190

            SHA256

            fb82246e07699d28085900e2c79b05a2722a0d5923a82cd657ec83ea7c9d4961

            SHA512

            337aca483d5182b593c69545b058737180447e00bd6afa6e6bf736f8b4001692c179321585f3dcf589714ab29518e32c537f1adbb63b3dc1b651d6de1c18748b

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

            241KB

            MD5

            4b8ae3c9e0316a945b10532e8323bda0

            SHA1

            156d219ad4dd93c0c36860b2c2d410c75cd33190

            SHA256

            fb82246e07699d28085900e2c79b05a2722a0d5923a82cd657ec83ea7c9d4961

            SHA512

            337aca483d5182b593c69545b058737180447e00bd6afa6e6bf736f8b4001692c179321585f3dcf589714ab29518e32c537f1adbb63b3dc1b651d6de1c18748b

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

            241KB

            MD5

            4b8ae3c9e0316a945b10532e8323bda0

            SHA1

            156d219ad4dd93c0c36860b2c2d410c75cd33190

            SHA256

            fb82246e07699d28085900e2c79b05a2722a0d5923a82cd657ec83ea7c9d4961

            SHA512

            337aca483d5182b593c69545b058737180447e00bd6afa6e6bf736f8b4001692c179321585f3dcf589714ab29518e32c537f1adbb63b3dc1b651d6de1c18748b

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

            108KB

            MD5

            79ec864489fc676cbd8524c3b91bbbb3

            SHA1

            28e81849ad4aaf7a7b3dde6315a560412fa3cfdd

            SHA256

            d44484583ad5617689f8df77896e7c4bc006a9b90c75a478122f9637a50799e5

            SHA512

            db4f1af27236fd8971e62d41aa55e3db948be8b1dfbdacb63bf5fe05a7f5ad212e5793befb4f5a8605cf854ca4517633a27a54930c5d26911463cadd98aaccfe

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

            108KB

            MD5

            79ec864489fc676cbd8524c3b91bbbb3

            SHA1

            28e81849ad4aaf7a7b3dde6315a560412fa3cfdd

            SHA256

            d44484583ad5617689f8df77896e7c4bc006a9b90c75a478122f9637a50799e5

            SHA512

            db4f1af27236fd8971e62d41aa55e3db948be8b1dfbdacb63bf5fe05a7f5ad212e5793befb4f5a8605cf854ca4517633a27a54930c5d26911463cadd98aaccfe

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

            176KB

            MD5

            a8cbbe27def040b72206218d050ef5e4

            SHA1

            e91ea42bac6b6b61f7df154558c88a9ef7969e82

            SHA256

            0e041c60e12803536745093c8cb32238ec05846aedf051fefe02450a2c8e8e1d

            SHA512

            001afe559c63609d42e5f228a51dc5263cda4307169006443a4b3e40866177ed0982c66431d97aa1c47857a4f0f556a2effe252897a8131bbfa672438cf37a89

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

            176KB

            MD5

            a8cbbe27def040b72206218d050ef5e4

            SHA1

            e91ea42bac6b6b61f7df154558c88a9ef7969e82

            SHA256

            0e041c60e12803536745093c8cb32238ec05846aedf051fefe02450a2c8e8e1d

            SHA512

            001afe559c63609d42e5f228a51dc5263cda4307169006443a4b3e40866177ed0982c66431d97aa1c47857a4f0f556a2effe252897a8131bbfa672438cf37a89

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

            176KB

            MD5

            a8cbbe27def040b72206218d050ef5e4

            SHA1

            e91ea42bac6b6b61f7df154558c88a9ef7969e82

            SHA256

            0e041c60e12803536745093c8cb32238ec05846aedf051fefe02450a2c8e8e1d

            SHA512

            001afe559c63609d42e5f228a51dc5263cda4307169006443a4b3e40866177ed0982c66431d97aa1c47857a4f0f556a2effe252897a8131bbfa672438cf37a89

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

            158KB

            MD5

            6b0ad07432acc604e1c7191dfc6cb163

            SHA1

            78f7d7844f9679f45f1f4028d39b6e7b21b89a0c

            SHA256

            779d591aaaa03517352836b751c5d81c37d6f9db3baec59ee8260acfd59d9630

            SHA512

            adc2f49ba6db742ef6aa3908c2cabf37d4c78bf997f50010af81e3a98469eb6b66fe865016dcb641a9328699f9f3470fa1d8c5a942c93be0ecf1539661d19b54

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

            158KB

            MD5

            6b0ad07432acc604e1c7191dfc6cb163

            SHA1

            78f7d7844f9679f45f1f4028d39b6e7b21b89a0c

            SHA256

            779d591aaaa03517352836b751c5d81c37d6f9db3baec59ee8260acfd59d9630

            SHA512

            adc2f49ba6db742ef6aa3908c2cabf37d4c78bf997f50010af81e3a98469eb6b66fe865016dcb641a9328699f9f3470fa1d8c5a942c93be0ecf1539661d19b54

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

            158KB

            MD5

            6b0ad07432acc604e1c7191dfc6cb163

            SHA1

            78f7d7844f9679f45f1f4028d39b6e7b21b89a0c

            SHA256

            779d591aaaa03517352836b751c5d81c37d6f9db3baec59ee8260acfd59d9630

            SHA512

            adc2f49ba6db742ef6aa3908c2cabf37d4c78bf997f50010af81e3a98469eb6b66fe865016dcb641a9328699f9f3470fa1d8c5a942c93be0ecf1539661d19b54

          • memory/1124-165-0x0000000000000000-mapping.dmp
          • memory/2920-164-0x0000000000000000-mapping.dmp
          • memory/3108-146-0x0000000000000000-mapping.dmp
          • memory/3112-152-0x0000000000000000-mapping.dmp
          • memory/3360-135-0x0000000000000000-mapping.dmp
          • memory/3736-139-0x0000000000000000-mapping.dmp
          • memory/4108-157-0x0000000000000000-mapping.dmp
          • memory/4600-140-0x0000000000000000-mapping.dmp
          • memory/4624-158-0x0000000000000000-mapping.dmp
          • memory/4644-136-0x0000000000000000-mapping.dmp
          • memory/4796-141-0x0000000000000000-mapping.dmp