Analysis

  • max time kernel
    41s
  • max time network
    45s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:21

General

  • Target

    7aeb7bdd5e081b1de17884f0884e59b5eeb72be1a6318e25994191796321c367.exe

  • Size

    602KB

  • MD5

    2127f569ab2d8671c6a1e611c2173cae

  • SHA1

    d9ab11f539887c264c3fd8d98be351ec9f05d9b2

  • SHA256

    7aeb7bdd5e081b1de17884f0884e59b5eeb72be1a6318e25994191796321c367

  • SHA512

    af2376644fa769010c62c8a2ae1c693394627904399068f64675ba39acba38d613e6f92cd71d18e9f79d978367698aeaab158bb5dcdaa496f038665f874468f2

  • SSDEEP

    12288:qIny5DYTcIGMEqGQWXeVl6gnPuN9LNZq3fl/Yj8U4pi7Kdm0:sUTcBDnil1WN9i1BUcdm

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 13 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.

  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 50 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\7aeb7bdd5e081b1de17884f0884e59b5eeb72be1a6318e25994191796321c367.exe
    "C:\Users\Admin\AppData\Local\Temp\7aeb7bdd5e081b1de17884f0884e59b5eeb72be1a6318e25994191796321c367.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:1944
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1588
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1340
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1720
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1356
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:988
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:108
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:852
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:840
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1772
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:956
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1500
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1576
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1644

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4b8543da5dd9041928eb934cb260c366

            SHA1

            ff6b55139c1cccea3e4a9e6b00030c00cc276d46

            SHA256

            455cb0c75f983a48249cabe435fb50b36da280cf5abf89da9486141fdda8a056

            SHA512

            8957f4260f24042ba0824a75e06548c8b07cda0008e25c5bbdd731d9f9a06cde6dd39c5085f9b5852f881cff6f8be9b4b6fbb5dc1330819ba26c944000a8eafc

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e821f96b4c0f41311d08459321964cdd

            SHA1

            4a20ca96e33e67420fd4bfb0df76701893bd1858

            SHA256

            97abab6056c0b7145e976d9013ede9aefd39bd98d0c267187a09c03190587793

            SHA512

            ffbff7b8e3cec77cf8575a577bbbc53fc66449e209967f9735dd25322787da8952918aa62cd1567edc3d49ef11616359bba4a94a0dfee6746c2c0854255f58b8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f0a0bbf585badf02e53c410fd260ed8c

            SHA1

            daddf9abfaa1834e98837bafc1c7c69caa2d5b20

            SHA256

            54c534d0e983238d7b239c1f9e65ac2904b70f83d2850db3f392e885737743aa

            SHA512

            366f8fb326b0d548f71eb9ea41a455d5fa2b7769ce94073a4ccbb98cebb95fda1215e032a22e140334d062b89c8b65b578153ec625064ecdba9c752af8ccabe2

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6b3f563f0cd2da73d97f32ec133d476e

            SHA1

            9e854cfd061353e02bc9273fd35ae25bbee80310

            SHA256

            e2fca817d03c59e28c421ad42a887f5267e8d40c97efbdecc1c17513db77ab8d

            SHA512

            8a1f4d054b3ad07615952dd8f967256fb53405a8837f7d3b99f8a8a14d41a002ea2a4f3aae7dffb5a8fadf96d74c982aafe720076a05f3cdf691ab5561d61562

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6b3f563f0cd2da73d97f32ec133d476e

            SHA1

            9e854cfd061353e02bc9273fd35ae25bbee80310

            SHA256

            e2fca817d03c59e28c421ad42a887f5267e8d40c97efbdecc1c17513db77ab8d

            SHA512

            8a1f4d054b3ad07615952dd8f967256fb53405a8837f7d3b99f8a8a14d41a002ea2a4f3aae7dffb5a8fadf96d74c982aafe720076a05f3cdf691ab5561d61562

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7c58d3bcc1782a942777ed1ee6716d3e

            SHA1

            d90d9d4ae3391e40cfeb18e2d49f517e8123820e

            SHA256

            58bee6cf4d374398cf8cce229f6ffae14074de64699874be39916b7628bf01ac

            SHA512

            1dad9e90168c54d35b6d42f35422c4d9a5aabee90b6e2c999117b922e7cbaa42a6d7ad4af7c3848fbf2ca7971eaf49a3d2a4fb49639cd46a2cfb4f2800b74bba

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7c58d3bcc1782a942777ed1ee6716d3e

            SHA1

            d90d9d4ae3391e40cfeb18e2d49f517e8123820e

            SHA256

            58bee6cf4d374398cf8cce229f6ffae14074de64699874be39916b7628bf01ac

            SHA512

            1dad9e90168c54d35b6d42f35422c4d9a5aabee90b6e2c999117b922e7cbaa42a6d7ad4af7c3848fbf2ca7971eaf49a3d2a4fb49639cd46a2cfb4f2800b74bba

          • \Users\Admin\AppData\Local\Temp\nsyFE20.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyFE20.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyFE20.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyFE20.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyFE20.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4b8543da5dd9041928eb934cb260c366

            SHA1

            ff6b55139c1cccea3e4a9e6b00030c00cc276d46

            SHA256

            455cb0c75f983a48249cabe435fb50b36da280cf5abf89da9486141fdda8a056

            SHA512

            8957f4260f24042ba0824a75e06548c8b07cda0008e25c5bbdd731d9f9a06cde6dd39c5085f9b5852f881cff6f8be9b4b6fbb5dc1330819ba26c944000a8eafc

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4b8543da5dd9041928eb934cb260c366

            SHA1

            ff6b55139c1cccea3e4a9e6b00030c00cc276d46

            SHA256

            455cb0c75f983a48249cabe435fb50b36da280cf5abf89da9486141fdda8a056

            SHA512

            8957f4260f24042ba0824a75e06548c8b07cda0008e25c5bbdd731d9f9a06cde6dd39c5085f9b5852f881cff6f8be9b4b6fbb5dc1330819ba26c944000a8eafc

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            4b8543da5dd9041928eb934cb260c366

            SHA1

            ff6b55139c1cccea3e4a9e6b00030c00cc276d46

            SHA256

            455cb0c75f983a48249cabe435fb50b36da280cf5abf89da9486141fdda8a056

            SHA512

            8957f4260f24042ba0824a75e06548c8b07cda0008e25c5bbdd731d9f9a06cde6dd39c5085f9b5852f881cff6f8be9b4b6fbb5dc1330819ba26c944000a8eafc

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e821f96b4c0f41311d08459321964cdd

            SHA1

            4a20ca96e33e67420fd4bfb0df76701893bd1858

            SHA256

            97abab6056c0b7145e976d9013ede9aefd39bd98d0c267187a09c03190587793

            SHA512

            ffbff7b8e3cec77cf8575a577bbbc53fc66449e209967f9735dd25322787da8952918aa62cd1567edc3d49ef11616359bba4a94a0dfee6746c2c0854255f58b8

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            244KB

            MD5

            e821f96b4c0f41311d08459321964cdd

            SHA1

            4a20ca96e33e67420fd4bfb0df76701893bd1858

            SHA256

            97abab6056c0b7145e976d9013ede9aefd39bd98d0c267187a09c03190587793

            SHA512

            ffbff7b8e3cec77cf8575a577bbbc53fc66449e209967f9735dd25322787da8952918aa62cd1567edc3d49ef11616359bba4a94a0dfee6746c2c0854255f58b8

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            f0a0bbf585badf02e53c410fd260ed8c

            SHA1

            daddf9abfaa1834e98837bafc1c7c69caa2d5b20

            SHA256

            54c534d0e983238d7b239c1f9e65ac2904b70f83d2850db3f392e885737743aa

            SHA512

            366f8fb326b0d548f71eb9ea41a455d5fa2b7769ce94073a4ccbb98cebb95fda1215e032a22e140334d062b89c8b65b578153ec625064ecdba9c752af8ccabe2

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            6b3f563f0cd2da73d97f32ec133d476e

            SHA1

            9e854cfd061353e02bc9273fd35ae25bbee80310

            SHA256

            e2fca817d03c59e28c421ad42a887f5267e8d40c97efbdecc1c17513db77ab8d

            SHA512

            8a1f4d054b3ad07615952dd8f967256fb53405a8837f7d3b99f8a8a14d41a002ea2a4f3aae7dffb5a8fadf96d74c982aafe720076a05f3cdf691ab5561d61562

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            159KB

            MD5

            7c58d3bcc1782a942777ed1ee6716d3e

            SHA1

            d90d9d4ae3391e40cfeb18e2d49f517e8123820e

            SHA256

            58bee6cf4d374398cf8cce229f6ffae14074de64699874be39916b7628bf01ac

            SHA512

            1dad9e90168c54d35b6d42f35422c4d9a5aabee90b6e2c999117b922e7cbaa42a6d7ad4af7c3848fbf2ca7971eaf49a3d2a4fb49639cd46a2cfb4f2800b74bba

          • memory/108-70-0x0000000000000000-mapping.dmp

          • memory/840-80-0x0000000000000000-mapping.dmp

          • memory/852-76-0x0000000000000000-mapping.dmp

          • memory/956-86-0x0000000000000000-mapping.dmp

          • memory/988-64-0x0000000000000000-mapping.dmp

          • memory/1340-58-0x0000000000000000-mapping.dmp

          • memory/1356-62-0x0000000000000000-mapping.dmp

          • memory/1500-87-0x0000000000000000-mapping.dmp

          • memory/1588-57-0x0000000000000000-mapping.dmp

          • memory/1720-61-0x0000000000000000-mapping.dmp

          • memory/1772-81-0x0000000000000000-mapping.dmp

          • memory/1944-54-0x0000000075CF1000-0x0000000075CF3000-memory.dmp

            Filesize

            8KB

          • memory/1944-59-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1944-90-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB