Analysis

  • max time kernel
    177s
  • max time network
    213s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20221111-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20221111-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:22

General

  • Target

    7434630a419dfa20339feb0c357c558ad5e349f21bc1b885284ea818f42dc9e8.exe

  • Size

    601KB

  • MD5

    0ac69c73baa32dd1e74e3ccad1f62a55

  • SHA1

    a5246296cb2bcde3079cc7527a4df093d41fc00f

  • SHA256

    7434630a419dfa20339feb0c357c558ad5e349f21bc1b885284ea818f42dc9e8

  • SHA512

    4c10fa26333cd27710cafcdd46114b9a218faa11d561f223ed701622798ebd19da5ece148fdd3318264bfc6236d3cbf7aaec2a7d8f4e1604e54ec02bada6644d

  • SSDEEP

    12288:iIny5DYTD/MB+s/iUj0tsUlWAlUh0zyKITRK:EUTDw+ILJAWhUydK

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\7434630a419dfa20339feb0c357c558ad5e349f21bc1b885284ea818f42dc9e8.exe
    "C:\Users\Admin\AppData\Local\Temp\7434630a419dfa20339feb0c357c558ad5e349f21bc1b885284ea818f42dc9e8.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:1064
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4508
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:216
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4292
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:932
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:3592
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2724
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:816
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2876
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1104
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4680
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1888
          • 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:2576
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:5040

          Network

          MITRE ATT&CK Enterprise v6

          Replay Monitor

          Loading Replay Monitor...

          Downloads

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\System.dll

            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nsfB920.tmp\nsExec.dll

            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22228ca3fee06d0386aba0ed12255558

            SHA1

            e55c31f59ce14cbcdc67092ea5fbc43b1fcac551

            SHA256

            dcea82cbb5412212de58ded4f9ff7b1edce587aea06b44cd076c2b78c7fc53af

            SHA512

            bf5371ff4fe5a18a65abd21337b6c45e87a2dfc5eba88fc3e984e285af4683bbc63c7103beac00e1201dc8858c3cee60b0c94343f226be8aa0ca442ba9602897

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22228ca3fee06d0386aba0ed12255558

            SHA1

            e55c31f59ce14cbcdc67092ea5fbc43b1fcac551

            SHA256

            dcea82cbb5412212de58ded4f9ff7b1edce587aea06b44cd076c2b78c7fc53af

            SHA512

            bf5371ff4fe5a18a65abd21337b6c45e87a2dfc5eba88fc3e984e285af4683bbc63c7103beac00e1201dc8858c3cee60b0c94343f226be8aa0ca442ba9602897

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22228ca3fee06d0386aba0ed12255558

            SHA1

            e55c31f59ce14cbcdc67092ea5fbc43b1fcac551

            SHA256

            dcea82cbb5412212de58ded4f9ff7b1edce587aea06b44cd076c2b78c7fc53af

            SHA512

            bf5371ff4fe5a18a65abd21337b6c45e87a2dfc5eba88fc3e984e285af4683bbc63c7103beac00e1201dc8858c3cee60b0c94343f226be8aa0ca442ba9602897

          • C:\Windows\SysWOW64\hfnapi.dll

            Filesize

            106KB

            MD5

            22228ca3fee06d0386aba0ed12255558

            SHA1

            e55c31f59ce14cbcdc67092ea5fbc43b1fcac551

            SHA256

            dcea82cbb5412212de58ded4f9ff7b1edce587aea06b44cd076c2b78c7fc53af

            SHA512

            bf5371ff4fe5a18a65abd21337b6c45e87a2dfc5eba88fc3e984e285af4683bbc63c7103beac00e1201dc8858c3cee60b0c94343f226be8aa0ca442ba9602897

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            261b3ff09b424d97dd28f758df2dbba9

            SHA1

            fafc394ff37c6b0e692424bafb33c7e812a6949e

            SHA256

            ce1307f6b48a3dd1c905bd2d7a3aecbdb4a39fc961f18ba69630ffce2e791a80

            SHA512

            f365aed45256b5329ac0cf622e3c0353acff143e8726eeb73d3771aad53935d82fec6b03b699e2ed140f09764fe0c5f0ee468e74b934c5f995b507aabc54e775

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            261b3ff09b424d97dd28f758df2dbba9

            SHA1

            fafc394ff37c6b0e692424bafb33c7e812a6949e

            SHA256

            ce1307f6b48a3dd1c905bd2d7a3aecbdb4a39fc961f18ba69630ffce2e791a80

            SHA512

            f365aed45256b5329ac0cf622e3c0353acff143e8726eeb73d3771aad53935d82fec6b03b699e2ed140f09764fe0c5f0ee468e74b934c5f995b507aabc54e775

          • C:\Windows\SysWOW64\hfpapi.dll

            Filesize

            241KB

            MD5

            261b3ff09b424d97dd28f758df2dbba9

            SHA1

            fafc394ff37c6b0e692424bafb33c7e812a6949e

            SHA256

            ce1307f6b48a3dd1c905bd2d7a3aecbdb4a39fc961f18ba69630ffce2e791a80

            SHA512

            f365aed45256b5329ac0cf622e3c0353acff143e8726eeb73d3771aad53935d82fec6b03b699e2ed140f09764fe0c5f0ee468e74b934c5f995b507aabc54e775

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7e13e1b4998f8f987548328bdeec0cc4

            SHA1

            6170c27536935153b436ac62127fdfc91985a615

            SHA256

            2e1d5dfa5df49cfca6c8cec7e63dbb843431d9bf514e7a8d45bcfbf8722bcab7

            SHA512

            7cb8b8bafc75a079a7e25c08256ef7e530e96a3de8f3fb914e38da494f256aace5424a54c8eb6f6cdab9ac6183c4efe40b75f88ba153cee06fa7e7c0df37361a

          • C:\Windows\SysWOW64\installd.exe

            Filesize

            108KB

            MD5

            7e13e1b4998f8f987548328bdeec0cc4

            SHA1

            6170c27536935153b436ac62127fdfc91985a615

            SHA256

            2e1d5dfa5df49cfca6c8cec7e63dbb843431d9bf514e7a8d45bcfbf8722bcab7

            SHA512

            7cb8b8bafc75a079a7e25c08256ef7e530e96a3de8f3fb914e38da494f256aace5424a54c8eb6f6cdab9ac6183c4efe40b75f88ba153cee06fa7e7c0df37361a

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b2244fa7a49d7f03d019b7f2ce523a03

            SHA1

            da42ca48a77c0765edb06e76bc75889c00ee796c

            SHA256

            63bc424675f10ac58628ec15e24685aa30c68e96db7c5789db05f1660ee2d78e

            SHA512

            3b85217e9873a1fe2b70a78abe6b0346e686dc3d3ae78ca81682a4f84c736ee1118999a4355e28291f2c9d233c6ef774cd626c56df3e17ac48d43bf371f438d3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b2244fa7a49d7f03d019b7f2ce523a03

            SHA1

            da42ca48a77c0765edb06e76bc75889c00ee796c

            SHA256

            63bc424675f10ac58628ec15e24685aa30c68e96db7c5789db05f1660ee2d78e

            SHA512

            3b85217e9873a1fe2b70a78abe6b0346e686dc3d3ae78ca81682a4f84c736ee1118999a4355e28291f2c9d233c6ef774cd626c56df3e17ac48d43bf371f438d3

          • C:\Windows\SysWOW64\nethtsrv.exe

            Filesize

            176KB

            MD5

            b2244fa7a49d7f03d019b7f2ce523a03

            SHA1

            da42ca48a77c0765edb06e76bc75889c00ee796c

            SHA256

            63bc424675f10ac58628ec15e24685aa30c68e96db7c5789db05f1660ee2d78e

            SHA512

            3b85217e9873a1fe2b70a78abe6b0346e686dc3d3ae78ca81682a4f84c736ee1118999a4355e28291f2c9d233c6ef774cd626c56df3e17ac48d43bf371f438d3

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            84e5251861bd3cddb5e7ef10a6ae1a16

            SHA1

            4d64d9abbbb637a3fe75137861acbabe387b9fa8

            SHA256

            c547fce2e017f8ebabf9c1311bcff5a4e8e518966ea18470df98024662e20066

            SHA512

            2f96ccd15ffd3f8b877c97d0fba361acdc82d6d6d28e9300d2cba8fafc35314fc86871a6a421384fd207ee4eaab38116527229cc901883ce714ad6f0d72e764b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            84e5251861bd3cddb5e7ef10a6ae1a16

            SHA1

            4d64d9abbbb637a3fe75137861acbabe387b9fa8

            SHA256

            c547fce2e017f8ebabf9c1311bcff5a4e8e518966ea18470df98024662e20066

            SHA512

            2f96ccd15ffd3f8b877c97d0fba361acdc82d6d6d28e9300d2cba8fafc35314fc86871a6a421384fd207ee4eaab38116527229cc901883ce714ad6f0d72e764b

          • C:\Windows\SysWOW64\netupdsrv.exe

            Filesize

            158KB

            MD5

            84e5251861bd3cddb5e7ef10a6ae1a16

            SHA1

            4d64d9abbbb637a3fe75137861acbabe387b9fa8

            SHA256

            c547fce2e017f8ebabf9c1311bcff5a4e8e518966ea18470df98024662e20066

            SHA512

            2f96ccd15ffd3f8b877c97d0fba361acdc82d6d6d28e9300d2cba8fafc35314fc86871a6a421384fd207ee4eaab38116527229cc901883ce714ad6f0d72e764b

          • memory/216-137-0x0000000000000000-mapping.dmp

          • memory/816-154-0x0000000000000000-mapping.dmp

          • memory/932-142-0x0000000000000000-mapping.dmp

          • memory/1064-132-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1064-138-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1064-169-0x0000000000360000-0x00000000007BE000-memory.dmp

            Filesize

            4.4MB

          • memory/1104-160-0x0000000000000000-mapping.dmp

          • memory/1888-167-0x0000000000000000-mapping.dmp

          • memory/2724-148-0x0000000000000000-mapping.dmp

          • memory/2876-159-0x0000000000000000-mapping.dmp

          • memory/3592-143-0x0000000000000000-mapping.dmp

          • memory/4292-141-0x0000000000000000-mapping.dmp

          • memory/4508-136-0x0000000000000000-mapping.dmp

          • memory/4680-166-0x0000000000000000-mapping.dmp