Analysis

  • max time kernel
    90s
  • max time network
    155s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20220901-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20220901-enlocale:en-usos:windows10-2004-x64system
  • submitted
    23-11-2022 10:10

General

  • Target

    d7767d7f550293844d1d262fd396dfd65f5db79a2681748dfcca3b189e9043b1.exe

  • Size

    602KB

  • MD5

    86573e185e08c068b9930b711bfe3520

  • SHA1

    c981b7d13aff39efa95c0ed7066087f65d91b9ab

  • SHA256

    d7767d7f550293844d1d262fd396dfd65f5db79a2681748dfcca3b189e9043b1

  • SHA512

    9dd4290c055c0bafa713bf74369816eecea2a22618e6940a5dd4632c46ce314ff7c86cd7db183cd895a0d67046b0274c143b73840f0843fa09b62bbbc65ebcb1

  • SSDEEP

    12288:5Iny5DYTWjfkeuUtPttX2vHck+KRtdic+qnTLtkIwHJ:1UTWj8yUvtlR7rt

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\d7767d7f550293844d1d262fd396dfd65f5db79a2681748dfcca3b189e9043b1.exe
    "C:\Users\Admin\AppData\Local\Temp\d7767d7f550293844d1d262fd396dfd65f5db79a2681748dfcca3b189e9043b1.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:4284
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:4744
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:5020
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:4880
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:4292
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:4952
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:2276
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:4244
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:2936
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:2552
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:4296
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:4672
          • 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:3088
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1944

          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:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • C:\Users\Admin\AppData\Local\Temp\nswBE94.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

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

            106KB

            MD5

            9d4195d8ee788562fc1b837a1b7bf394

            SHA1

            e049eb1d2a0a6d5bdb71e30c0ba8a937b8359055

            SHA256

            b724887d1f661df768883230e79df8b466c5908adaea652b30e2f1062edd37f1

            SHA512

            10d66f5fd285464f0bf17b7e1dcbf50738cf0209daa3673024a327f0b0eeb07c57da6a0cd420d4b977a66d575a5757a8760b87df56652d25ff3751c910e14ae6

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

            106KB

            MD5

            9d4195d8ee788562fc1b837a1b7bf394

            SHA1

            e049eb1d2a0a6d5bdb71e30c0ba8a937b8359055

            SHA256

            b724887d1f661df768883230e79df8b466c5908adaea652b30e2f1062edd37f1

            SHA512

            10d66f5fd285464f0bf17b7e1dcbf50738cf0209daa3673024a327f0b0eeb07c57da6a0cd420d4b977a66d575a5757a8760b87df56652d25ff3751c910e14ae6

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

            106KB

            MD5

            9d4195d8ee788562fc1b837a1b7bf394

            SHA1

            e049eb1d2a0a6d5bdb71e30c0ba8a937b8359055

            SHA256

            b724887d1f661df768883230e79df8b466c5908adaea652b30e2f1062edd37f1

            SHA512

            10d66f5fd285464f0bf17b7e1dcbf50738cf0209daa3673024a327f0b0eeb07c57da6a0cd420d4b977a66d575a5757a8760b87df56652d25ff3751c910e14ae6

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

            106KB

            MD5

            9d4195d8ee788562fc1b837a1b7bf394

            SHA1

            e049eb1d2a0a6d5bdb71e30c0ba8a937b8359055

            SHA256

            b724887d1f661df768883230e79df8b466c5908adaea652b30e2f1062edd37f1

            SHA512

            10d66f5fd285464f0bf17b7e1dcbf50738cf0209daa3673024a327f0b0eeb07c57da6a0cd420d4b977a66d575a5757a8760b87df56652d25ff3751c910e14ae6

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

            241KB

            MD5

            daa46f6467222ec6e8c95f64e4ba861e

            SHA1

            6d753c73b48219ad91cd09eb458eed1d2a63e6b5

            SHA256

            6d693495e5a82ce98dad661211e8221b6fe74a04d87538a7d8b7d37ada52b281

            SHA512

            fffca2db1af7970c04ec7e523b11761e3e5e48cd5b51660d201b3fb775db61ba6e768017f6d031e2ecc2d51b0d8a850a3b06728292d8cf06b19e6f610cae5cd6

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

            241KB

            MD5

            daa46f6467222ec6e8c95f64e4ba861e

            SHA1

            6d753c73b48219ad91cd09eb458eed1d2a63e6b5

            SHA256

            6d693495e5a82ce98dad661211e8221b6fe74a04d87538a7d8b7d37ada52b281

            SHA512

            fffca2db1af7970c04ec7e523b11761e3e5e48cd5b51660d201b3fb775db61ba6e768017f6d031e2ecc2d51b0d8a850a3b06728292d8cf06b19e6f610cae5cd6

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

            241KB

            MD5

            daa46f6467222ec6e8c95f64e4ba861e

            SHA1

            6d753c73b48219ad91cd09eb458eed1d2a63e6b5

            SHA256

            6d693495e5a82ce98dad661211e8221b6fe74a04d87538a7d8b7d37ada52b281

            SHA512

            fffca2db1af7970c04ec7e523b11761e3e5e48cd5b51660d201b3fb775db61ba6e768017f6d031e2ecc2d51b0d8a850a3b06728292d8cf06b19e6f610cae5cd6

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

            108KB

            MD5

            508bf25c87fdd63bbba3875346278739

            SHA1

            f7f85af76ec5188e7d90a6ede0bef30cb2610f19

            SHA256

            c7b19e152830ef5451d78944a07bab882717605d9d612e520c342319fa96ce01

            SHA512

            9e93efc36a2ef04ca61b296c5d0d638a2d11d62e8817dd86362e5eb5f8c5b0b56a343ea9174fd662d1b6dd39812f265bfe1a16f1cd09279f6667616cab669f83

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

            108KB

            MD5

            508bf25c87fdd63bbba3875346278739

            SHA1

            f7f85af76ec5188e7d90a6ede0bef30cb2610f19

            SHA256

            c7b19e152830ef5451d78944a07bab882717605d9d612e520c342319fa96ce01

            SHA512

            9e93efc36a2ef04ca61b296c5d0d638a2d11d62e8817dd86362e5eb5f8c5b0b56a343ea9174fd662d1b6dd39812f265bfe1a16f1cd09279f6667616cab669f83

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

            176KB

            MD5

            bc2927aefedf39bb600998ad7732a3e6

            SHA1

            f9d502771bda0440b5f8537d0862cc19ad9b855e

            SHA256

            2eb09d04d7d60408c98cc3528c6fdf52fb96bdb769e7ae4ec1d55687d843ea41

            SHA512

            df81e8641205390aa4c249f36b6122784d2984f3356d9dd15f2910cc4c1e82ff37656cb4684fba98ef9d54c932bbe028d1280374635d8d90e7d5fd289fe96745

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

            176KB

            MD5

            bc2927aefedf39bb600998ad7732a3e6

            SHA1

            f9d502771bda0440b5f8537d0862cc19ad9b855e

            SHA256

            2eb09d04d7d60408c98cc3528c6fdf52fb96bdb769e7ae4ec1d55687d843ea41

            SHA512

            df81e8641205390aa4c249f36b6122784d2984f3356d9dd15f2910cc4c1e82ff37656cb4684fba98ef9d54c932bbe028d1280374635d8d90e7d5fd289fe96745

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

            176KB

            MD5

            bc2927aefedf39bb600998ad7732a3e6

            SHA1

            f9d502771bda0440b5f8537d0862cc19ad9b855e

            SHA256

            2eb09d04d7d60408c98cc3528c6fdf52fb96bdb769e7ae4ec1d55687d843ea41

            SHA512

            df81e8641205390aa4c249f36b6122784d2984f3356d9dd15f2910cc4c1e82ff37656cb4684fba98ef9d54c932bbe028d1280374635d8d90e7d5fd289fe96745

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

            159KB

            MD5

            9d8bd7a1d93104159ad9092a501553c9

            SHA1

            7da4a48a12e0d00168e41de331ef75c2c5bf400c

            SHA256

            8c6eecffa8f0fecbfefa6c4aaa1b00b7f6f39b524c83d0ff218341d2bc6409a3

            SHA512

            7c21597b132b9c782cbde0e1ea1e0ec43cbac18f025251c1ee6477687b633d11f859b4fe7c3b9ef8bdb22874eac8598fff4c4630bf4e26ac006a39391844869d

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

            159KB

            MD5

            9d8bd7a1d93104159ad9092a501553c9

            SHA1

            7da4a48a12e0d00168e41de331ef75c2c5bf400c

            SHA256

            8c6eecffa8f0fecbfefa6c4aaa1b00b7f6f39b524c83d0ff218341d2bc6409a3

            SHA512

            7c21597b132b9c782cbde0e1ea1e0ec43cbac18f025251c1ee6477687b633d11f859b4fe7c3b9ef8bdb22874eac8598fff4c4630bf4e26ac006a39391844869d

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

            159KB

            MD5

            9d8bd7a1d93104159ad9092a501553c9

            SHA1

            7da4a48a12e0d00168e41de331ef75c2c5bf400c

            SHA256

            8c6eecffa8f0fecbfefa6c4aaa1b00b7f6f39b524c83d0ff218341d2bc6409a3

            SHA512

            7c21597b132b9c782cbde0e1ea1e0ec43cbac18f025251c1ee6477687b633d11f859b4fe7c3b9ef8bdb22874eac8598fff4c4630bf4e26ac006a39391844869d

          • memory/2276-147-0x0000000000000000-mapping.dmp
          • memory/2552-159-0x0000000000000000-mapping.dmp
          • memory/2936-158-0x0000000000000000-mapping.dmp
          • memory/4244-153-0x0000000000000000-mapping.dmp
          • memory/4284-132-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4284-168-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/4292-141-0x0000000000000000-mapping.dmp
          • memory/4296-165-0x0000000000000000-mapping.dmp
          • memory/4672-166-0x0000000000000000-mapping.dmp
          • memory/4744-136-0x0000000000000000-mapping.dmp
          • memory/4880-140-0x0000000000000000-mapping.dmp
          • memory/4952-142-0x0000000000000000-mapping.dmp
          • memory/5020-137-0x0000000000000000-mapping.dmp