Analysis

  • max time kernel
    45s
  • max time network
    31s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:20

General

  • Target

    884ad5929ee87ae62b37ac381b8243d98657b064f34d6e2ae23eddfad974f50e.exe

  • Size

    603KB

  • MD5

    6c7eac937697bd7d70247f655a3c03be

  • SHA1

    7ca5d9314ca93d53c23dd350c7dc262f2aac5e13

  • SHA256

    884ad5929ee87ae62b37ac381b8243d98657b064f34d6e2ae23eddfad974f50e

  • SHA512

    46bab5abff17c4c076bff89e91835b579e00a5f320828ae0f2b8694fa9896a3306eccc6201be1692ba6882a0344fb19c4842b16b1ca5b898e87128499ceddd5b

  • SSDEEP

    12288:WIny5DYTmIM8YQfTB/QXFnXu5JHZuoL/Wz4Hhh2pqkWF4HD7CEuU:YUTm78YQ7B/peAhkpeyHD7CE

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\884ad5929ee87ae62b37ac381b8243d98657b064f34d6e2ae23eddfad974f50e.exe
    "C:\Users\Admin\AppData\Local\Temp\884ad5929ee87ae62b37ac381b8243d98657b064f34d6e2ae23eddfad974f50e.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:1388
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1348
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:712
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1488
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1128
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1636
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1748
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1120
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1892
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1576
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:2044
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1560
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1956
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:916

          Network

          MITRE ATT&CK Matrix ATT&CK v6

          Discovery

          Query Registry

          1
          T1012

          System Information Discovery

          1
          T1082

          Replay Monitor

          Loading Replay Monitor...

          Downloads

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

            106KB

            MD5

            37c3ebd2b2e2df5c29d818e249c0d4b7

            SHA1

            50437d8a0dccf2739ce1b3323bce06955ff45816

            SHA256

            447e83a05fb6ef56a5cd06e561fdba59811ae7199c6035adbddfc0b2039fd082

            SHA512

            fa246f400c6fa652281785d842f657a66d9058b2da3610f265c8d4bf6b9ee156b750495d5bc2c23c5491578393cfb3875e2a8757a8582257b134c0c6f3bb5daa

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

            244KB

            MD5

            56c57a367689023616315b7e25b901f3

            SHA1

            747401f3c637dd468db005dfada04f6e002e03f7

            SHA256

            602741a1ee14a25f98b20284b790561db380a524394e09dfd61622279cd09976

            SHA512

            72ef5cfcd6879f05b6c944c30e3c2e8abf6781389b8aeccc74c0c08196364fc79a943ba06d9b5b014a4ddd03e7744451dffba944e18e4d08203f660353d735a0

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

            108KB

            MD5

            5bb1ef5b80f1f2824a2705c9fec04371

            SHA1

            582b67fce59e87e0d4fe2c36f1c03dfdae1bba52

            SHA256

            e605889e8e5f5036834d11d9133bab6985d6ed6e92b9f80ded7d7bad8210cd29

            SHA512

            134a2f90ad43ae9c74d4df6b5d372c557b15aee989bc78e031d43e9698819e91cb0f7f9810eee502bb846eeaf73b7a059af02d35a2f84dce117718f52e0c4f41

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

            176KB

            MD5

            7dd304e88c1dec2546d11a6ccdfd3815

            SHA1

            04f9f289ec5374d99cbd9b3891b7e971ce6b308d

            SHA256

            0f06b29a69eaa8aee9aea4e7222c5af01bc82c121137eb870f80428934211622

            SHA512

            0a2732d0b41d244a1d646289c5a107e7dde138fe9ec2750f88bf57dae1064223655ed3b5fffb0692fce265a659906fa663bdc512aa16c0a16755ff8bd2c95a5c

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

            176KB

            MD5

            7dd304e88c1dec2546d11a6ccdfd3815

            SHA1

            04f9f289ec5374d99cbd9b3891b7e971ce6b308d

            SHA256

            0f06b29a69eaa8aee9aea4e7222c5af01bc82c121137eb870f80428934211622

            SHA512

            0a2732d0b41d244a1d646289c5a107e7dde138fe9ec2750f88bf57dae1064223655ed3b5fffb0692fce265a659906fa663bdc512aa16c0a16755ff8bd2c95a5c

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

            158KB

            MD5

            05ae95fdf1b63726fa93450845233a94

            SHA1

            18c2b91ecac2ce4bb781b7166476d69584128d83

            SHA256

            560d0d8d782618e6b09485d16300a5dd060e45a0de0dcf37e74aa708448a3c25

            SHA512

            28e28f6d549b71d0ff5929b31983c6aadc920ed8d03da4a47cbd6387af3dc11d51d85bb80d65a89dfd1b01e6c8dfe6c68e00cc6bcd84094c40f0b76776ce2cee

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

            158KB

            MD5

            05ae95fdf1b63726fa93450845233a94

            SHA1

            18c2b91ecac2ce4bb781b7166476d69584128d83

            SHA256

            560d0d8d782618e6b09485d16300a5dd060e45a0de0dcf37e74aa708448a3c25

            SHA512

            28e28f6d549b71d0ff5929b31983c6aadc920ed8d03da4a47cbd6387af3dc11d51d85bb80d65a89dfd1b01e6c8dfe6c68e00cc6bcd84094c40f0b76776ce2cee

          • \Users\Admin\AppData\Local\Temp\nsd69CD.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsd69CD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd69CD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd69CD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsd69CD.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37c3ebd2b2e2df5c29d818e249c0d4b7

            SHA1

            50437d8a0dccf2739ce1b3323bce06955ff45816

            SHA256

            447e83a05fb6ef56a5cd06e561fdba59811ae7199c6035adbddfc0b2039fd082

            SHA512

            fa246f400c6fa652281785d842f657a66d9058b2da3610f265c8d4bf6b9ee156b750495d5bc2c23c5491578393cfb3875e2a8757a8582257b134c0c6f3bb5daa

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37c3ebd2b2e2df5c29d818e249c0d4b7

            SHA1

            50437d8a0dccf2739ce1b3323bce06955ff45816

            SHA256

            447e83a05fb6ef56a5cd06e561fdba59811ae7199c6035adbddfc0b2039fd082

            SHA512

            fa246f400c6fa652281785d842f657a66d9058b2da3610f265c8d4bf6b9ee156b750495d5bc2c23c5491578393cfb3875e2a8757a8582257b134c0c6f3bb5daa

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            37c3ebd2b2e2df5c29d818e249c0d4b7

            SHA1

            50437d8a0dccf2739ce1b3323bce06955ff45816

            SHA256

            447e83a05fb6ef56a5cd06e561fdba59811ae7199c6035adbddfc0b2039fd082

            SHA512

            fa246f400c6fa652281785d842f657a66d9058b2da3610f265c8d4bf6b9ee156b750495d5bc2c23c5491578393cfb3875e2a8757a8582257b134c0c6f3bb5daa

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            56c57a367689023616315b7e25b901f3

            SHA1

            747401f3c637dd468db005dfada04f6e002e03f7

            SHA256

            602741a1ee14a25f98b20284b790561db380a524394e09dfd61622279cd09976

            SHA512

            72ef5cfcd6879f05b6c944c30e3c2e8abf6781389b8aeccc74c0c08196364fc79a943ba06d9b5b014a4ddd03e7744451dffba944e18e4d08203f660353d735a0

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            56c57a367689023616315b7e25b901f3

            SHA1

            747401f3c637dd468db005dfada04f6e002e03f7

            SHA256

            602741a1ee14a25f98b20284b790561db380a524394e09dfd61622279cd09976

            SHA512

            72ef5cfcd6879f05b6c944c30e3c2e8abf6781389b8aeccc74c0c08196364fc79a943ba06d9b5b014a4ddd03e7744451dffba944e18e4d08203f660353d735a0

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            5bb1ef5b80f1f2824a2705c9fec04371

            SHA1

            582b67fce59e87e0d4fe2c36f1c03dfdae1bba52

            SHA256

            e605889e8e5f5036834d11d9133bab6985d6ed6e92b9f80ded7d7bad8210cd29

            SHA512

            134a2f90ad43ae9c74d4df6b5d372c557b15aee989bc78e031d43e9698819e91cb0f7f9810eee502bb846eeaf73b7a059af02d35a2f84dce117718f52e0c4f41

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            7dd304e88c1dec2546d11a6ccdfd3815

            SHA1

            04f9f289ec5374d99cbd9b3891b7e971ce6b308d

            SHA256

            0f06b29a69eaa8aee9aea4e7222c5af01bc82c121137eb870f80428934211622

            SHA512

            0a2732d0b41d244a1d646289c5a107e7dde138fe9ec2750f88bf57dae1064223655ed3b5fffb0692fce265a659906fa663bdc512aa16c0a16755ff8bd2c95a5c

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            05ae95fdf1b63726fa93450845233a94

            SHA1

            18c2b91ecac2ce4bb781b7166476d69584128d83

            SHA256

            560d0d8d782618e6b09485d16300a5dd060e45a0de0dcf37e74aa708448a3c25

            SHA512

            28e28f6d549b71d0ff5929b31983c6aadc920ed8d03da4a47cbd6387af3dc11d51d85bb80d65a89dfd1b01e6c8dfe6c68e00cc6bcd84094c40f0b76776ce2cee

          • memory/712-58-0x0000000000000000-mapping.dmp
          • memory/1120-77-0x0000000000000000-mapping.dmp
          • memory/1128-61-0x0000000000000000-mapping.dmp
          • memory/1348-57-0x0000000000000000-mapping.dmp
          • memory/1388-62-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1388-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1388-54-0x0000000075C31000-0x0000000075C33000-memory.dmp
            Filesize

            8KB

          • memory/1388-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1488-60-0x0000000000000000-mapping.dmp
          • memory/1560-88-0x0000000000000000-mapping.dmp
          • memory/1576-82-0x0000000000000000-mapping.dmp
          • memory/1636-64-0x0000000000000000-mapping.dmp
          • memory/1748-71-0x0000000000000000-mapping.dmp
          • memory/1892-81-0x0000000000000000-mapping.dmp
          • memory/2044-87-0x0000000000000000-mapping.dmp