Analysis

  • max time kernel
    150s
  • max time network
    156s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220812-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220812-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 11:00

General

  • Target

    04da8c40b022f38e1615d7b55fd84d952bd31b038668abcb54b75990fedde87c.exe

  • Size

    446KB

  • MD5

    36b185a49a6970fb14fd3b37c43c6c33

  • SHA1

    d046d0534fc6439b343131b52e6b5958e23013f7

  • SHA256

    04da8c40b022f38e1615d7b55fd84d952bd31b038668abcb54b75990fedde87c

  • SHA512

    a29d9233a453063fd3a677a0f8d7956a4d1d5be1ba8c4a18d2798f895131cd80c769882de987ead349b1f9951e0b482b76f216ac33e29104ca56e09543326f72

  • SSDEEP

    12288:XDaXvQjZGARYqlKRYYDKbweH6KK5f4Sqw73/n:XDqvQjZGOYql5Y2UeH96HHDn

Score
8/10

Malware Config

Signatures

  • Drops file in Drivers directory 1 IoCs
  • Executes dropped EXE 5 IoCs
  • Loads dropped DLL 14 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.

  • Modifies data under HKEY_USERS 1 IoCs
  • Runs net.exe
  • Suspicious behavior: LoadsDriver 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 33 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\04da8c40b022f38e1615d7b55fd84d952bd31b038668abcb54b75990fedde87c.exe
    "C:\Users\Admin\AppData\Local\Temp\04da8c40b022f38e1615d7b55fd84d952bd31b038668abcb54b75990fedde87c.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:4340
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:2544
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:256
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:3400
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4652
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4468
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3540
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4212
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:3120
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:3748
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:3452
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4596
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Modifies data under HKEY_USERS
            • Suspicious use of AdjustPrivilegeToken
            PID:2792
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:2028

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nss8EBA.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7c7ffefa2ccf92e02b3f28035553ec47

            SHA1

            3657f843d8bd805d795ae501a6beae8b8ae06778

            SHA256

            d778631e33c78f1dc6ff874ef0055721a3be44d0f4897dc8b1e716e4a597b914

            SHA512

            54a55e2c9d90d09fd112c0e5ac8e9d49b0e388f31a61a35d6179dc4e2f580e00fac73484db84ea9824d2ed9d6fda4c0a05fdb03a6a0b4d9ec56fb9defb3d0441

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7c7ffefa2ccf92e02b3f28035553ec47

            SHA1

            3657f843d8bd805d795ae501a6beae8b8ae06778

            SHA256

            d778631e33c78f1dc6ff874ef0055721a3be44d0f4897dc8b1e716e4a597b914

            SHA512

            54a55e2c9d90d09fd112c0e5ac8e9d49b0e388f31a61a35d6179dc4e2f580e00fac73484db84ea9824d2ed9d6fda4c0a05fdb03a6a0b4d9ec56fb9defb3d0441

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7c7ffefa2ccf92e02b3f28035553ec47

            SHA1

            3657f843d8bd805d795ae501a6beae8b8ae06778

            SHA256

            d778631e33c78f1dc6ff874ef0055721a3be44d0f4897dc8b1e716e4a597b914

            SHA512

            54a55e2c9d90d09fd112c0e5ac8e9d49b0e388f31a61a35d6179dc4e2f580e00fac73484db84ea9824d2ed9d6fda4c0a05fdb03a6a0b4d9ec56fb9defb3d0441

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            7c7ffefa2ccf92e02b3f28035553ec47

            SHA1

            3657f843d8bd805d795ae501a6beae8b8ae06778

            SHA256

            d778631e33c78f1dc6ff874ef0055721a3be44d0f4897dc8b1e716e4a597b914

            SHA512

            54a55e2c9d90d09fd112c0e5ac8e9d49b0e388f31a61a35d6179dc4e2f580e00fac73484db84ea9824d2ed9d6fda4c0a05fdb03a6a0b4d9ec56fb9defb3d0441

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9f31e279738d23ec735e08c8ef26f40f

            SHA1

            363fbb3fd3fd3054a92fbd96e297990881d564cc

            SHA256

            fcf316c4f14e8e5a031552a60c4f3c16a4d6577c2d554de94a64d898a74e4238

            SHA512

            6f70f29a93e97ab6df92a0eaa72abb940758b2b2ee64b80a53d829ee33aaa176a688d513fd55969131ac16d1d7f098413d9859ae0a5c22485eb2dab540f1cca8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9f31e279738d23ec735e08c8ef26f40f

            SHA1

            363fbb3fd3fd3054a92fbd96e297990881d564cc

            SHA256

            fcf316c4f14e8e5a031552a60c4f3c16a4d6577c2d554de94a64d898a74e4238

            SHA512

            6f70f29a93e97ab6df92a0eaa72abb940758b2b2ee64b80a53d829ee33aaa176a688d513fd55969131ac16d1d7f098413d9859ae0a5c22485eb2dab540f1cca8

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            9f31e279738d23ec735e08c8ef26f40f

            SHA1

            363fbb3fd3fd3054a92fbd96e297990881d564cc

            SHA256

            fcf316c4f14e8e5a031552a60c4f3c16a4d6577c2d554de94a64d898a74e4238

            SHA512

            6f70f29a93e97ab6df92a0eaa72abb940758b2b2ee64b80a53d829ee33aaa176a688d513fd55969131ac16d1d7f098413d9859ae0a5c22485eb2dab540f1cca8

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            da35b0fbeb13d8ca216dbe3d69ce6377

            SHA1

            213cde671ea58e5a181da787c8ccba5c58b602f6

            SHA256

            f093021713bf80238588ca5c27296d7b1e57abe0ac5cb27c3c3e60ae623a8962

            SHA512

            67ecd49cd748aa8869f5db1e5c9040e0f2eaeb77b47abdf9d79f2fdad72d335710706ed3b4513e3a54e6fe8a1fa0c92c940ecb034da3d295d133569a30199383

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            da35b0fbeb13d8ca216dbe3d69ce6377

            SHA1

            213cde671ea58e5a181da787c8ccba5c58b602f6

            SHA256

            f093021713bf80238588ca5c27296d7b1e57abe0ac5cb27c3c3e60ae623a8962

            SHA512

            67ecd49cd748aa8869f5db1e5c9040e0f2eaeb77b47abdf9d79f2fdad72d335710706ed3b4513e3a54e6fe8a1fa0c92c940ecb034da3d295d133569a30199383

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4179d7e810547d4c9bf759087b3e39bc

            SHA1

            faf509094b28fd4bfea813d30c4a805394479153

            SHA256

            31066c57e73ab18e2581690b2a23eea5c9ac843cc45657237fdc78d7ee67662d

            SHA512

            5c952c1909ec272380d2b3c3dfb4da705c05de0dd847870067aab3a02c8eb49fbaffc044c42b970b11aef08144fd47fef7cde914fda2297a9c9241129fba20d8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4179d7e810547d4c9bf759087b3e39bc

            SHA1

            faf509094b28fd4bfea813d30c4a805394479153

            SHA256

            31066c57e73ab18e2581690b2a23eea5c9ac843cc45657237fdc78d7ee67662d

            SHA512

            5c952c1909ec272380d2b3c3dfb4da705c05de0dd847870067aab3a02c8eb49fbaffc044c42b970b11aef08144fd47fef7cde914fda2297a9c9241129fba20d8

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            4179d7e810547d4c9bf759087b3e39bc

            SHA1

            faf509094b28fd4bfea813d30c4a805394479153

            SHA256

            31066c57e73ab18e2581690b2a23eea5c9ac843cc45657237fdc78d7ee67662d

            SHA512

            5c952c1909ec272380d2b3c3dfb4da705c05de0dd847870067aab3a02c8eb49fbaffc044c42b970b11aef08144fd47fef7cde914fda2297a9c9241129fba20d8

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            cf4b4da97b945e81cd3e4894a05aa880

            SHA1

            69cec0570ab9054adc9bb2289b7b0f5617de79dc

            SHA256

            767699cf1364d69caa08e04bbfe276949661aa520d5a2bf25a739a3942d09762

            SHA512

            b0fc5c88f9c74b51ba98bb158e8716186f5e9ea5ee77338618ee34a5df4ba289838a664902be1ad54fdc3f273671cabb9b754e5ca3e3d6328cd8f70045aff13d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            cf4b4da97b945e81cd3e4894a05aa880

            SHA1

            69cec0570ab9054adc9bb2289b7b0f5617de79dc

            SHA256

            767699cf1364d69caa08e04bbfe276949661aa520d5a2bf25a739a3942d09762

            SHA512

            b0fc5c88f9c74b51ba98bb158e8716186f5e9ea5ee77338618ee34a5df4ba289838a664902be1ad54fdc3f273671cabb9b754e5ca3e3d6328cd8f70045aff13d

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            cf4b4da97b945e81cd3e4894a05aa880

            SHA1

            69cec0570ab9054adc9bb2289b7b0f5617de79dc

            SHA256

            767699cf1364d69caa08e04bbfe276949661aa520d5a2bf25a739a3942d09762

            SHA512

            b0fc5c88f9c74b51ba98bb158e8716186f5e9ea5ee77338618ee34a5df4ba289838a664902be1ad54fdc3f273671cabb9b754e5ca3e3d6328cd8f70045aff13d

          • memory/256-136-0x0000000000000000-mapping.dmp

          • memory/2544-135-0x0000000000000000-mapping.dmp

          • memory/3120-157-0x0000000000000000-mapping.dmp

          • memory/3400-139-0x0000000000000000-mapping.dmp

          • memory/3452-164-0x0000000000000000-mapping.dmp

          • memory/3540-146-0x0000000000000000-mapping.dmp

          • memory/3748-158-0x0000000000000000-mapping.dmp

          • memory/4212-152-0x0000000000000000-mapping.dmp

          • memory/4468-141-0x0000000000000000-mapping.dmp

          • memory/4596-165-0x0000000000000000-mapping.dmp

          • memory/4652-140-0x0000000000000000-mapping.dmp