Analysis

  • max time kernel
    46s
  • 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 10:22

General

  • Target

    7616c1da0426b686994b2b5215c2a72b8108ab96ec02d47fc00f2badcd532ec6.exe

  • Size

    602KB

  • MD5

    4948f6c81b6664450e44f77a9c18771d

  • SHA1

    ac7a15144982826653f21145c88ea5fcb56c7b99

  • SHA256

    7616c1da0426b686994b2b5215c2a72b8108ab96ec02d47fc00f2badcd532ec6

  • SHA512

    87a58ef3b7be0d48840466b0e2947cd520d477c3b61089b307527a23ce4ac7f08ee660e2a8beb94bbbc164debe907eebfd46238fab21419e70aa7b3efa044ec7

  • SSDEEP

    12288:SIny5DYTB5M74WaqRyBRJ6A8RuESy2vlQl+5hJ0DSIfb7a+bKb:UUTB5M74WamyBRJ6A8YtvlQo5hODJbu/

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\7616c1da0426b686994b2b5215c2a72b8108ab96ec02d47fc00f2badcd532ec6.exe
    "C:\Users\Admin\AppData\Local\Temp\7616c1da0426b686994b2b5215c2a72b8108ab96ec02d47fc00f2badcd532ec6.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:1472
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1480
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:464
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:588
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1820
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:608
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:868
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1060
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1616
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1980
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1920
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1944
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:700
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1824

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12a5f1445d7e0d86449fc513164778cd

            SHA1

            bfb641806d11e0694c21afe808e7f70b6df59722

            SHA256

            f8be2886f0750a9c973dd59e49f7876c9e82f5a40f22e36bef0a5ff1ffa889de

            SHA512

            4e090810cfb3851447b2828d47a7e0d68fafe18d5df1aeb80dcae61e84836e446eaffd244762d46752f14e50a02ad113b67e0343ebcb49435f5fb43231f33474

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            05b8e42b666f1d88a15a55a293a40dee

            SHA1

            ef051023426613c79e54d0b100504213e517c32d

            SHA256

            442f5bed14e3ef32d1b1e0e251016a90161e08ebca4e4aab2a4bf02a69e13477

            SHA512

            628fe1fe91c9ad57387d93ffa8746bbdbd7017ad9202905f63521823c10b8cfbbc94ffdb563be1929580d282ee02548b3a1224c36fc5a5e8ffcd15c49f1dc99d

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            663e47a298451f0cbca7f5a7b38bb99c

            SHA1

            0d5de12a5abdc923adbccd68904bd97984e872ff

            SHA256

            698e4d2bab92fc7c7f24caf66248b35954a229c53ee87c2cb8e5051831d221af

            SHA512

            cf59790a22b9488256a3a01716572d7a51affeb110a4f0cf26bb93c70a494e640faa97f391dfaa9c61a16a4f8191230b1e16718511551b80dbf07b6507dcf3b8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47380103567bc3352621a0e7bcb105c5

            SHA1

            303c545a8c5fe72fa18fcfee0d37781bfb042c82

            SHA256

            ddc86fea94d52e379a1bfed72193922ae511cb572e6baf6058ada591eb44b5a6

            SHA512

            8168deeb691aed7a5d4f3f8187ada3fd5a06b8ca204b77396c6c63bedc5abe3c515ea2ef0bf6d879d6f8be777100049545da340bcc5e50ee8c9fa7729f895d2c

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47380103567bc3352621a0e7bcb105c5

            SHA1

            303c545a8c5fe72fa18fcfee0d37781bfb042c82

            SHA256

            ddc86fea94d52e379a1bfed72193922ae511cb572e6baf6058ada591eb44b5a6

            SHA512

            8168deeb691aed7a5d4f3f8187ada3fd5a06b8ca204b77396c6c63bedc5abe3c515ea2ef0bf6d879d6f8be777100049545da340bcc5e50ee8c9fa7729f895d2c

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2a4ac7a4fce4d089020057d777fdc8a0

            SHA1

            48818a6cb7991c919d98cb4b7fcfb830e78906c5

            SHA256

            d51c86a91d191827aeeeb00fe036abb20e524477ea68e0d6f4b335a3a3452f30

            SHA512

            bd881444762748a536700f6087d84a37202a2b74939387a28277b954eaa62fabad2d566e35d7c9c835f13c2634d1354e932b4abaafd40fca653fe9c0e87f6ea5

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2a4ac7a4fce4d089020057d777fdc8a0

            SHA1

            48818a6cb7991c919d98cb4b7fcfb830e78906c5

            SHA256

            d51c86a91d191827aeeeb00fe036abb20e524477ea68e0d6f4b335a3a3452f30

            SHA512

            bd881444762748a536700f6087d84a37202a2b74939387a28277b954eaa62fabad2d566e35d7c9c835f13c2634d1354e932b4abaafd40fca653fe9c0e87f6ea5

          • \Users\Admin\AppData\Local\Temp\nstC2D5.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nstC2D5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC2D5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC2D5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nstC2D5.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12a5f1445d7e0d86449fc513164778cd

            SHA1

            bfb641806d11e0694c21afe808e7f70b6df59722

            SHA256

            f8be2886f0750a9c973dd59e49f7876c9e82f5a40f22e36bef0a5ff1ffa889de

            SHA512

            4e090810cfb3851447b2828d47a7e0d68fafe18d5df1aeb80dcae61e84836e446eaffd244762d46752f14e50a02ad113b67e0343ebcb49435f5fb43231f33474

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12a5f1445d7e0d86449fc513164778cd

            SHA1

            bfb641806d11e0694c21afe808e7f70b6df59722

            SHA256

            f8be2886f0750a9c973dd59e49f7876c9e82f5a40f22e36bef0a5ff1ffa889de

            SHA512

            4e090810cfb3851447b2828d47a7e0d68fafe18d5df1aeb80dcae61e84836e446eaffd244762d46752f14e50a02ad113b67e0343ebcb49435f5fb43231f33474

          • \Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            12a5f1445d7e0d86449fc513164778cd

            SHA1

            bfb641806d11e0694c21afe808e7f70b6df59722

            SHA256

            f8be2886f0750a9c973dd59e49f7876c9e82f5a40f22e36bef0a5ff1ffa889de

            SHA512

            4e090810cfb3851447b2828d47a7e0d68fafe18d5df1aeb80dcae61e84836e446eaffd244762d46752f14e50a02ad113b67e0343ebcb49435f5fb43231f33474

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            05b8e42b666f1d88a15a55a293a40dee

            SHA1

            ef051023426613c79e54d0b100504213e517c32d

            SHA256

            442f5bed14e3ef32d1b1e0e251016a90161e08ebca4e4aab2a4bf02a69e13477

            SHA512

            628fe1fe91c9ad57387d93ffa8746bbdbd7017ad9202905f63521823c10b8cfbbc94ffdb563be1929580d282ee02548b3a1224c36fc5a5e8ffcd15c49f1dc99d

          • \Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            05b8e42b666f1d88a15a55a293a40dee

            SHA1

            ef051023426613c79e54d0b100504213e517c32d

            SHA256

            442f5bed14e3ef32d1b1e0e251016a90161e08ebca4e4aab2a4bf02a69e13477

            SHA512

            628fe1fe91c9ad57387d93ffa8746bbdbd7017ad9202905f63521823c10b8cfbbc94ffdb563be1929580d282ee02548b3a1224c36fc5a5e8ffcd15c49f1dc99d

          • \Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            663e47a298451f0cbca7f5a7b38bb99c

            SHA1

            0d5de12a5abdc923adbccd68904bd97984e872ff

            SHA256

            698e4d2bab92fc7c7f24caf66248b35954a229c53ee87c2cb8e5051831d221af

            SHA512

            cf59790a22b9488256a3a01716572d7a51affeb110a4f0cf26bb93c70a494e640faa97f391dfaa9c61a16a4f8191230b1e16718511551b80dbf07b6507dcf3b8

          • \Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            47380103567bc3352621a0e7bcb105c5

            SHA1

            303c545a8c5fe72fa18fcfee0d37781bfb042c82

            SHA256

            ddc86fea94d52e379a1bfed72193922ae511cb572e6baf6058ada591eb44b5a6

            SHA512

            8168deeb691aed7a5d4f3f8187ada3fd5a06b8ca204b77396c6c63bedc5abe3c515ea2ef0bf6d879d6f8be777100049545da340bcc5e50ee8c9fa7729f895d2c

          • \Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            2a4ac7a4fce4d089020057d777fdc8a0

            SHA1

            48818a6cb7991c919d98cb4b7fcfb830e78906c5

            SHA256

            d51c86a91d191827aeeeb00fe036abb20e524477ea68e0d6f4b335a3a3452f30

            SHA512

            bd881444762748a536700f6087d84a37202a2b74939387a28277b954eaa62fabad2d566e35d7c9c835f13c2634d1354e932b4abaafd40fca653fe9c0e87f6ea5

          • memory/464-59-0x0000000000000000-mapping.dmp

          • memory/588-61-0x0000000000000000-mapping.dmp

          • memory/608-64-0x0000000000000000-mapping.dmp

          • memory/868-71-0x0000000000000000-mapping.dmp

          • memory/1060-77-0x0000000000000000-mapping.dmp

          • memory/1472-54-0x0000000075F21000-0x0000000075F23000-memory.dmp

            Filesize

            8KB

          • memory/1472-69-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1472-57-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1472-91-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1480-58-0x0000000000000000-mapping.dmp

          • memory/1616-81-0x0000000000000000-mapping.dmp

          • memory/1820-62-0x0000000000000000-mapping.dmp

          • memory/1920-87-0x0000000000000000-mapping.dmp

          • memory/1944-88-0x0000000000000000-mapping.dmp

          • memory/1980-82-0x0000000000000000-mapping.dmp