Analysis

  • max time kernel
    49s
  • 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 10:35

General

  • Target

    02a47c23eafe05d49d997fb8113c1ab3fb702b88778b3171f9492b95a5daa288.exe

  • Size

    602KB

  • MD5

    6ca08beca591227ccec5958b0447c2bc

  • SHA1

    6aff03ab0e2f3eb57e0c3d5c283d734b250d805b

  • SHA256

    02a47c23eafe05d49d997fb8113c1ab3fb702b88778b3171f9492b95a5daa288

  • SHA512

    3b4af191b0a03108705ec3aa11ea93eda19822772392902bade0a2cd79622507099741f39c9336852d768db98250d48d38094963e96d90859977d496fcb27b28

  • SSDEEP

    12288:UIny5DYTujBhunjfHe0BIocb8FHyVFw+Uhiz0Suwv5Ez4jd:SUTuTunjfHe0BIXgFHMRlzRuNz4j

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\02a47c23eafe05d49d997fb8113c1ab3fb702b88778b3171f9492b95a5daa288.exe
    "C:\Users\Admin\AppData\Local\Temp\02a47c23eafe05d49d997fb8113c1ab3fb702b88778b3171f9492b95a5daa288.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:1452
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:316
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:784
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1396
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1492
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:668
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1080
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1656
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1652
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1908
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1648
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1764
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:112
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1200

          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

            0eb4d4331e52c0624a8d78f516e496dd

            SHA1

            28db5457d24a22221bc619f0cbe48a339f382b20

            SHA256

            4547fea10a4ae1c8c0d51b74ff083648c6a23756a4acb7ad310f43cbbbefc45c

            SHA512

            321a2a894118355848689c613d999ef47416ab7ad2841cc97ac66678f6302c9769b5fc04f680699b44a68d5a55d41e739416f6bc98bdf034aa9476c933a8472d

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

            241KB

            MD5

            2620cceade8781ec54d600d55b5b114e

            SHA1

            fa2a22902ac195c65422cea554d82fe542d9585d

            SHA256

            101f1cbf8a679ff19d2fdd21939a47e8e979a57980e05186407cf19eaa59afbc

            SHA512

            f8b296972d9c3c71643425bf73f78fcce17c6b0f3174f76b94a9ef4ccacb854e33c68ee776039c44841d2b7037afb2f81222fb6257c6673cf6c25acbb197ab3a

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

            108KB

            MD5

            f7279aaaad0eff3335ca6cebf36a1994

            SHA1

            0220e7ce1ceb735ef706f8c4d69c9df439865fcc

            SHA256

            c26dc258137ca723bc1cb1b79e1789c38abc69b08b75f8c62aafa8355730b020

            SHA512

            1f1e2b1564ddf7686c0cdc88adfbde05f20f84873a6be554b963ecb864d57d047da3f03540b5c5dd7a72876d72f2822198e805388426a10ccfb8f093b7d0410d

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

            176KB

            MD5

            944afef05777eb54cab9d667c6e4e169

            SHA1

            9896c46753b7893597c2c577896432500d11d6cd

            SHA256

            388a7e953f58098dd4b1d7bdb6f8345abc03b0a0e1ffb6eb91630c494502675d

            SHA512

            7ff1716ab178ea30dcdf67f5f89bbd67215ea583eb384f510a5508f5b280fc24909b056e0dfa8c48b392ec1dc783026cc083f7707f4f33b3bc3d5c5d345e5559

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

            176KB

            MD5

            944afef05777eb54cab9d667c6e4e169

            SHA1

            9896c46753b7893597c2c577896432500d11d6cd

            SHA256

            388a7e953f58098dd4b1d7bdb6f8345abc03b0a0e1ffb6eb91630c494502675d

            SHA512

            7ff1716ab178ea30dcdf67f5f89bbd67215ea583eb384f510a5508f5b280fc24909b056e0dfa8c48b392ec1dc783026cc083f7707f4f33b3bc3d5c5d345e5559

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

            158KB

            MD5

            e99dc9ac1babc8b8e34966b43594a026

            SHA1

            22ee37aea742ec8255988f653318f99dcc745692

            SHA256

            f36f4ae1e4e31564da4d625b8a9faaf445aee1e57cae97bf619fd36cf999a2d0

            SHA512

            6642ce8293aec638ea6248a7950d0cf8f1fe3923e9afeedeba480cdd96a228e970b628b8ca3e80eec0812baa059b349825082b4d556b29d0c77667b7b16a0c1a

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

            158KB

            MD5

            e99dc9ac1babc8b8e34966b43594a026

            SHA1

            22ee37aea742ec8255988f653318f99dcc745692

            SHA256

            f36f4ae1e4e31564da4d625b8a9faaf445aee1e57cae97bf619fd36cf999a2d0

            SHA512

            6642ce8293aec638ea6248a7950d0cf8f1fe3923e9afeedeba480cdd96a228e970b628b8ca3e80eec0812baa059b349825082b4d556b29d0c77667b7b16a0c1a

          • \Users\Admin\AppData\Local\Temp\nsyBC8E.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsyBC8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyBC8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyBC8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsyBC8E.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0eb4d4331e52c0624a8d78f516e496dd

            SHA1

            28db5457d24a22221bc619f0cbe48a339f382b20

            SHA256

            4547fea10a4ae1c8c0d51b74ff083648c6a23756a4acb7ad310f43cbbbefc45c

            SHA512

            321a2a894118355848689c613d999ef47416ab7ad2841cc97ac66678f6302c9769b5fc04f680699b44a68d5a55d41e739416f6bc98bdf034aa9476c933a8472d

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0eb4d4331e52c0624a8d78f516e496dd

            SHA1

            28db5457d24a22221bc619f0cbe48a339f382b20

            SHA256

            4547fea10a4ae1c8c0d51b74ff083648c6a23756a4acb7ad310f43cbbbefc45c

            SHA512

            321a2a894118355848689c613d999ef47416ab7ad2841cc97ac66678f6302c9769b5fc04f680699b44a68d5a55d41e739416f6bc98bdf034aa9476c933a8472d

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0eb4d4331e52c0624a8d78f516e496dd

            SHA1

            28db5457d24a22221bc619f0cbe48a339f382b20

            SHA256

            4547fea10a4ae1c8c0d51b74ff083648c6a23756a4acb7ad310f43cbbbefc45c

            SHA512

            321a2a894118355848689c613d999ef47416ab7ad2841cc97ac66678f6302c9769b5fc04f680699b44a68d5a55d41e739416f6bc98bdf034aa9476c933a8472d

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            2620cceade8781ec54d600d55b5b114e

            SHA1

            fa2a22902ac195c65422cea554d82fe542d9585d

            SHA256

            101f1cbf8a679ff19d2fdd21939a47e8e979a57980e05186407cf19eaa59afbc

            SHA512

            f8b296972d9c3c71643425bf73f78fcce17c6b0f3174f76b94a9ef4ccacb854e33c68ee776039c44841d2b7037afb2f81222fb6257c6673cf6c25acbb197ab3a

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            2620cceade8781ec54d600d55b5b114e

            SHA1

            fa2a22902ac195c65422cea554d82fe542d9585d

            SHA256

            101f1cbf8a679ff19d2fdd21939a47e8e979a57980e05186407cf19eaa59afbc

            SHA512

            f8b296972d9c3c71643425bf73f78fcce17c6b0f3174f76b94a9ef4ccacb854e33c68ee776039c44841d2b7037afb2f81222fb6257c6673cf6c25acbb197ab3a

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            f7279aaaad0eff3335ca6cebf36a1994

            SHA1

            0220e7ce1ceb735ef706f8c4d69c9df439865fcc

            SHA256

            c26dc258137ca723bc1cb1b79e1789c38abc69b08b75f8c62aafa8355730b020

            SHA512

            1f1e2b1564ddf7686c0cdc88adfbde05f20f84873a6be554b963ecb864d57d047da3f03540b5c5dd7a72876d72f2822198e805388426a10ccfb8f093b7d0410d

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            944afef05777eb54cab9d667c6e4e169

            SHA1

            9896c46753b7893597c2c577896432500d11d6cd

            SHA256

            388a7e953f58098dd4b1d7bdb6f8345abc03b0a0e1ffb6eb91630c494502675d

            SHA512

            7ff1716ab178ea30dcdf67f5f89bbd67215ea583eb384f510a5508f5b280fc24909b056e0dfa8c48b392ec1dc783026cc083f7707f4f33b3bc3d5c5d345e5559

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            e99dc9ac1babc8b8e34966b43594a026

            SHA1

            22ee37aea742ec8255988f653318f99dcc745692

            SHA256

            f36f4ae1e4e31564da4d625b8a9faaf445aee1e57cae97bf619fd36cf999a2d0

            SHA512

            6642ce8293aec638ea6248a7950d0cf8f1fe3923e9afeedeba480cdd96a228e970b628b8ca3e80eec0812baa059b349825082b4d556b29d0c77667b7b16a0c1a

          • memory/316-57-0x0000000000000000-mapping.dmp
          • memory/668-64-0x0000000000000000-mapping.dmp
          • memory/784-58-0x0000000000000000-mapping.dmp
          • memory/1080-71-0x0000000000000000-mapping.dmp
          • memory/1396-61-0x0000000000000000-mapping.dmp
          • memory/1452-54-0x0000000076941000-0x0000000076943000-memory.dmp
            Filesize

            8KB

          • memory/1452-69-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1452-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1452-91-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1492-62-0x0000000000000000-mapping.dmp
          • memory/1648-87-0x0000000000000000-mapping.dmp
          • memory/1652-81-0x0000000000000000-mapping.dmp
          • memory/1656-77-0x0000000000000000-mapping.dmp
          • memory/1764-88-0x0000000000000000-mapping.dmp
          • memory/1908-82-0x0000000000000000-mapping.dmp