Analysis

  • max time kernel
    63s
  • max time network
    34s
  • platform
    windows7_x64
  • resource
    win7-20221111-en
  • resource tags

    arch:x64arch:x86image:win7-20221111-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:56

General

  • Target

    5c0a0f2aa2220500dfef2c785cd38a3be9d2c9a5d418f503e83c11d3020bc4ce.exe

  • Size

    446KB

  • MD5

    60f78e19f1c240e41256fcf394e05254

  • SHA1

    8eacaa4630aed258136dad95e9d8dd64065da282

  • SHA256

    5c0a0f2aa2220500dfef2c785cd38a3be9d2c9a5d418f503e83c11d3020bc4ce

  • SHA512

    b8c7651014d58b8a8316613ea62134596153ef50664e52cf209c94630321c61fa6043d3fb657e6ea2915d19fefd27f7939c004d51dd344cc8bd0eecd4a537052

  • SSDEEP

    6144:XzfcyLIPUzXwdWf3LqMyvOlq5YqsEF7nmE0GMb/SSPSUL7hrLNeCT1uHK:YI1zXpzqMzlfxahWb/5BL7Bx+K

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\5c0a0f2aa2220500dfef2c785cd38a3be9d2c9a5d418f503e83c11d3020bc4ce.exe
    "C:\Users\Admin\AppData\Local\Temp\5c0a0f2aa2220500dfef2c785cd38a3be9d2c9a5d418f503e83c11d3020bc4ce.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:1992
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2032
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:2000
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1180
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:556
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:852
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2024
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1368
        • 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:1496
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1900
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1988
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:820
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:300

          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

            9b55d3563b958104611e43e44c51b7a6

            SHA1

            77d82118dbdf3afade276ccd52f4012a22eb4838

            SHA256

            eec44d56efc4a01da961dc4aa8c0bf66807d678078c28239a3cb90b777704a51

            SHA512

            d0362a282c931b119c3dca1df48b1f2f45951b8400d4624613d982b70d6c64807283b74f4645527cd59673dcde988da43d22278502665dc708dbf7b8ded4484b

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

            244KB

            MD5

            84a719659d0dbd1d11ac600e0db93e9a

            SHA1

            476787eb7d3fc4c7df82ca04d78ab6f09e693b4b

            SHA256

            9b94cb2c297379658247cb8c9556896f70f77eb0d936ababdc8977b436ac6e50

            SHA512

            3a605a08706ef8997584ea0e5aa0c87e294d07bf81c1100e692f66f8d1380b000c99a56f311d6cd588c519a07089b58d1e0e9fbd1f9d80669e78cd40a37190e4

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

            108KB

            MD5

            c5cb04823623828a02c2bcca43390020

            SHA1

            8e4622eed5249f1540fb4a426eac886d09593514

            SHA256

            3c968deae6c08a322a2cd60dc24730c21d513df29e30b97eda2e56adf8315500

            SHA512

            cdfdbcc24bcdb81eeeda952fd5c0cba3ad72d22195c7636854a7f7d30e8f75413ee169cb475e80bebd6877ddfaa6d2ac346b329e39e9c24b93d49322d0e97894

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

            176KB

            MD5

            37bc410a8d144489d3f06fea23d19a7c

            SHA1

            f4138790ee56402c6a53cdb4d6a021915eff4c24

            SHA256

            99f733effcef100875744527f9561fce07a3bdb72fcfd7cd14cd1dccfb174052

            SHA512

            a96b56567c5a528e19fb0fcb590087aafed4dfad5af4047ea01ac6d1a2f3f879e7d174c8fa595817696cd34ec593ea8b5da55c3cae35f41d2adc4cdfa1b7e39d

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

            176KB

            MD5

            37bc410a8d144489d3f06fea23d19a7c

            SHA1

            f4138790ee56402c6a53cdb4d6a021915eff4c24

            SHA256

            99f733effcef100875744527f9561fce07a3bdb72fcfd7cd14cd1dccfb174052

            SHA512

            a96b56567c5a528e19fb0fcb590087aafed4dfad5af4047ea01ac6d1a2f3f879e7d174c8fa595817696cd34ec593ea8b5da55c3cae35f41d2adc4cdfa1b7e39d

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

            159KB

            MD5

            a9ef24d6d0d92321ee27460faa148afd

            SHA1

            49a0c25f6153815128bc0648b84b9e4bae902a3c

            SHA256

            e7b407c36bc0b56db2bf1bffb2a16140a3495bd4f947ff2a2aca4d99964b6bc4

            SHA512

            98a4905ecca630e245591c96ada7e1574b5e1fe6d90c037161ec22aff6253c7ca9fa7c21a0c472d155841a20221e9d9fdd53d1480fe89f06bbff5d3b19cf22f2

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

            159KB

            MD5

            a9ef24d6d0d92321ee27460faa148afd

            SHA1

            49a0c25f6153815128bc0648b84b9e4bae902a3c

            SHA256

            e7b407c36bc0b56db2bf1bffb2a16140a3495bd4f947ff2a2aca4d99964b6bc4

            SHA512

            98a4905ecca630e245591c96ada7e1574b5e1fe6d90c037161ec22aff6253c7ca9fa7c21a0c472d155841a20221e9d9fdd53d1480fe89f06bbff5d3b19cf22f2

          • \Users\Admin\AppData\Local\Temp\nsjA113.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsjA113.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjA113.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjA113.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsjA113.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            9b55d3563b958104611e43e44c51b7a6

            SHA1

            77d82118dbdf3afade276ccd52f4012a22eb4838

            SHA256

            eec44d56efc4a01da961dc4aa8c0bf66807d678078c28239a3cb90b777704a51

            SHA512

            d0362a282c931b119c3dca1df48b1f2f45951b8400d4624613d982b70d6c64807283b74f4645527cd59673dcde988da43d22278502665dc708dbf7b8ded4484b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            9b55d3563b958104611e43e44c51b7a6

            SHA1

            77d82118dbdf3afade276ccd52f4012a22eb4838

            SHA256

            eec44d56efc4a01da961dc4aa8c0bf66807d678078c28239a3cb90b777704a51

            SHA512

            d0362a282c931b119c3dca1df48b1f2f45951b8400d4624613d982b70d6c64807283b74f4645527cd59673dcde988da43d22278502665dc708dbf7b8ded4484b

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            9b55d3563b958104611e43e44c51b7a6

            SHA1

            77d82118dbdf3afade276ccd52f4012a22eb4838

            SHA256

            eec44d56efc4a01da961dc4aa8c0bf66807d678078c28239a3cb90b777704a51

            SHA512

            d0362a282c931b119c3dca1df48b1f2f45951b8400d4624613d982b70d6c64807283b74f4645527cd59673dcde988da43d22278502665dc708dbf7b8ded4484b

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            84a719659d0dbd1d11ac600e0db93e9a

            SHA1

            476787eb7d3fc4c7df82ca04d78ab6f09e693b4b

            SHA256

            9b94cb2c297379658247cb8c9556896f70f77eb0d936ababdc8977b436ac6e50

            SHA512

            3a605a08706ef8997584ea0e5aa0c87e294d07bf81c1100e692f66f8d1380b000c99a56f311d6cd588c519a07089b58d1e0e9fbd1f9d80669e78cd40a37190e4

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            84a719659d0dbd1d11ac600e0db93e9a

            SHA1

            476787eb7d3fc4c7df82ca04d78ab6f09e693b4b

            SHA256

            9b94cb2c297379658247cb8c9556896f70f77eb0d936ababdc8977b436ac6e50

            SHA512

            3a605a08706ef8997584ea0e5aa0c87e294d07bf81c1100e692f66f8d1380b000c99a56f311d6cd588c519a07089b58d1e0e9fbd1f9d80669e78cd40a37190e4

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            c5cb04823623828a02c2bcca43390020

            SHA1

            8e4622eed5249f1540fb4a426eac886d09593514

            SHA256

            3c968deae6c08a322a2cd60dc24730c21d513df29e30b97eda2e56adf8315500

            SHA512

            cdfdbcc24bcdb81eeeda952fd5c0cba3ad72d22195c7636854a7f7d30e8f75413ee169cb475e80bebd6877ddfaa6d2ac346b329e39e9c24b93d49322d0e97894

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            37bc410a8d144489d3f06fea23d19a7c

            SHA1

            f4138790ee56402c6a53cdb4d6a021915eff4c24

            SHA256

            99f733effcef100875744527f9561fce07a3bdb72fcfd7cd14cd1dccfb174052

            SHA512

            a96b56567c5a528e19fb0fcb590087aafed4dfad5af4047ea01ac6d1a2f3f879e7d174c8fa595817696cd34ec593ea8b5da55c3cae35f41d2adc4cdfa1b7e39d

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            a9ef24d6d0d92321ee27460faa148afd

            SHA1

            49a0c25f6153815128bc0648b84b9e4bae902a3c

            SHA256

            e7b407c36bc0b56db2bf1bffb2a16140a3495bd4f947ff2a2aca4d99964b6bc4

            SHA512

            98a4905ecca630e245591c96ada7e1574b5e1fe6d90c037161ec22aff6253c7ca9fa7c21a0c472d155841a20221e9d9fdd53d1480fe89f06bbff5d3b19cf22f2

          • memory/556-61-0x0000000000000000-mapping.dmp
          • memory/840-79-0x0000000000000000-mapping.dmp
          • memory/852-63-0x0000000000000000-mapping.dmp
          • memory/1180-60-0x0000000000000000-mapping.dmp
          • memory/1368-75-0x0000000000000000-mapping.dmp
          • memory/1496-80-0x0000000000000000-mapping.dmp
          • memory/1900-85-0x0000000000000000-mapping.dmp
          • memory/1988-86-0x0000000000000000-mapping.dmp
          • memory/1992-54-0x0000000076411000-0x0000000076413000-memory.dmp
            Filesize

            8KB

          • memory/2000-58-0x0000000000000000-mapping.dmp
          • memory/2024-69-0x0000000000000000-mapping.dmp
          • memory/2032-57-0x0000000000000000-mapping.dmp