Analysis

  • max time kernel
    35s
  • max time network
    46s
  • platform
    windows7_x64
  • resource
    win7-20220812-en
  • resource tags

    arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:09

General

  • Target

    e12af2d3d02f8bbe5ee854fe11b2183f45f640b02af569237ffb8c22b69b1266.exe

  • Size

    602KB

  • MD5

    8a7b7828ff595a194f48f72e5433825d

  • SHA1

    137f209f1d15318490c9ea2e1da0f13f6adf32f0

  • SHA256

    e12af2d3d02f8bbe5ee854fe11b2183f45f640b02af569237ffb8c22b69b1266

  • SHA512

    ead88a403d88ddbb1fec61bb4678cd665bc0e599ca8932d6833fa133ee10833a044fdcf94f7a04309e9d6d17833c51d355c68157630b7fea0402fd679d6775cc

  • SSDEEP

    12288:2Iny5DYTZIaeWwko2e5oFlVq9b/y0JEjGlvnE4PLshG9CykDaZ:4UTZxeyXRq9bpEcvnEgshG9CykDaZ

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\e12af2d3d02f8bbe5ee854fe11b2183f45f640b02af569237ffb8c22b69b1266.exe
    "C:\Users\Admin\AppData\Local\Temp\e12af2d3d02f8bbe5ee854fe11b2183f45f640b02af569237ffb8c22b69b1266.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:2004
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:1884
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:936
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:1360
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:1220
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1304
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:652
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1568
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1876
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1468
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:568
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:1480
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1752
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1076

          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

            0235790aff344f5220e0e2c9293a8ce8

            SHA1

            77fa0d19fbafcb08b550c237f08612ea17355996

            SHA256

            1e7032c4361466cdbfeb1bbf35e0485296dadb1cb3f7bbeb408f9ec353cc6de1

            SHA512

            de81fe395805036ac005bef09f389ba06996e806ff76eae67000cc6e4d48c665da0041d8098d7f84ef4f6c054ee99269a1e742b60102f41a1d056db93ba6a9a7

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

            244KB

            MD5

            e876ee3ce8b113f676698089955bb9b9

            SHA1

            d9c8a91f30721063f8f31a5bb28f3f9ba5e64ac2

            SHA256

            9b9ed46346d753d1ba0742b1564adef556e9e4ceede33f4b157fd212e904f070

            SHA512

            08a20f3b2cffc6dfbf4898c63d77be8cb741a7adbfb4d589805001bfa1a9ae927a9ebfb0d8c164aa802d1ddb027ddbd6dcaf83ffb7bd74061a71c25ffc219d25

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

            108KB

            MD5

            a596245be3d917b63298c6b332602bc1

            SHA1

            b66d81eec1f8bd56bcfec39652d6e226a8f859ea

            SHA256

            5b5e83d1c422a722fe80355433f597de2652ffb79257d35052ae7946a577a307

            SHA512

            2aad4ba7c82ef7580edf97ce2f5ef71d24623c85c3ae5ea0724db78a479798a8a331ea68fdbfef514a34d36b2adb52c7311a0e2794c30304c918eb4094496ed4

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

            176KB

            MD5

            adb6765846665ceec9af5cb723963620

            SHA1

            87fd9e6be65ead9e8786b6c42a637cba13fc1f65

            SHA256

            6092f802d80fa72a482fa02a6130a3515b5e317f8b19d55121e3ec1656b646aa

            SHA512

            931d3f807f020b623b4bfe98b0c4c793ffe44c047f41c4740be9fa39d80b649bb261ec99d40e64d478e90c576e9da9ead3bcd59fd6be769ddfb36820363b934f

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

            176KB

            MD5

            adb6765846665ceec9af5cb723963620

            SHA1

            87fd9e6be65ead9e8786b6c42a637cba13fc1f65

            SHA256

            6092f802d80fa72a482fa02a6130a3515b5e317f8b19d55121e3ec1656b646aa

            SHA512

            931d3f807f020b623b4bfe98b0c4c793ffe44c047f41c4740be9fa39d80b649bb261ec99d40e64d478e90c576e9da9ead3bcd59fd6be769ddfb36820363b934f

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

            158KB

            MD5

            ff56a2227f34a726e44a2b3db67824cd

            SHA1

            23011b619511d705a45b05e7bfe3783564c52367

            SHA256

            c607990d8de2880ea0fcdb979d63bf5d5a1cbe1007f87fd6a88549df36eeb5ce

            SHA512

            9e91024e623bc2b29774d40d233990f5793dc172e046a0864f0380378d231ba6131628208d92fd3f07afa8ab2777bacb3a79a06bf6fb9cd95acf7c21e52c86cf

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

            158KB

            MD5

            ff56a2227f34a726e44a2b3db67824cd

            SHA1

            23011b619511d705a45b05e7bfe3783564c52367

            SHA256

            c607990d8de2880ea0fcdb979d63bf5d5a1cbe1007f87fd6a88549df36eeb5ce

            SHA512

            9e91024e623bc2b29774d40d233990f5793dc172e046a0864f0380378d231ba6131628208d92fd3f07afa8ab2777bacb3a79a06bf6fb9cd95acf7c21e52c86cf

          • \Users\Admin\AppData\Local\Temp\nsy1410.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy1410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy1410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy1410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy1410.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0235790aff344f5220e0e2c9293a8ce8

            SHA1

            77fa0d19fbafcb08b550c237f08612ea17355996

            SHA256

            1e7032c4361466cdbfeb1bbf35e0485296dadb1cb3f7bbeb408f9ec353cc6de1

            SHA512

            de81fe395805036ac005bef09f389ba06996e806ff76eae67000cc6e4d48c665da0041d8098d7f84ef4f6c054ee99269a1e742b60102f41a1d056db93ba6a9a7

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0235790aff344f5220e0e2c9293a8ce8

            SHA1

            77fa0d19fbafcb08b550c237f08612ea17355996

            SHA256

            1e7032c4361466cdbfeb1bbf35e0485296dadb1cb3f7bbeb408f9ec353cc6de1

            SHA512

            de81fe395805036ac005bef09f389ba06996e806ff76eae67000cc6e4d48c665da0041d8098d7f84ef4f6c054ee99269a1e742b60102f41a1d056db93ba6a9a7

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0235790aff344f5220e0e2c9293a8ce8

            SHA1

            77fa0d19fbafcb08b550c237f08612ea17355996

            SHA256

            1e7032c4361466cdbfeb1bbf35e0485296dadb1cb3f7bbeb408f9ec353cc6de1

            SHA512

            de81fe395805036ac005bef09f389ba06996e806ff76eae67000cc6e4d48c665da0041d8098d7f84ef4f6c054ee99269a1e742b60102f41a1d056db93ba6a9a7

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            e876ee3ce8b113f676698089955bb9b9

            SHA1

            d9c8a91f30721063f8f31a5bb28f3f9ba5e64ac2

            SHA256

            9b9ed46346d753d1ba0742b1564adef556e9e4ceede33f4b157fd212e904f070

            SHA512

            08a20f3b2cffc6dfbf4898c63d77be8cb741a7adbfb4d589805001bfa1a9ae927a9ebfb0d8c164aa802d1ddb027ddbd6dcaf83ffb7bd74061a71c25ffc219d25

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            244KB

            MD5

            e876ee3ce8b113f676698089955bb9b9

            SHA1

            d9c8a91f30721063f8f31a5bb28f3f9ba5e64ac2

            SHA256

            9b9ed46346d753d1ba0742b1564adef556e9e4ceede33f4b157fd212e904f070

            SHA512

            08a20f3b2cffc6dfbf4898c63d77be8cb741a7adbfb4d589805001bfa1a9ae927a9ebfb0d8c164aa802d1ddb027ddbd6dcaf83ffb7bd74061a71c25ffc219d25

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            a596245be3d917b63298c6b332602bc1

            SHA1

            b66d81eec1f8bd56bcfec39652d6e226a8f859ea

            SHA256

            5b5e83d1c422a722fe80355433f597de2652ffb79257d35052ae7946a577a307

            SHA512

            2aad4ba7c82ef7580edf97ce2f5ef71d24623c85c3ae5ea0724db78a479798a8a331ea68fdbfef514a34d36b2adb52c7311a0e2794c30304c918eb4094496ed4

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            176KB

            MD5

            adb6765846665ceec9af5cb723963620

            SHA1

            87fd9e6be65ead9e8786b6c42a637cba13fc1f65

            SHA256

            6092f802d80fa72a482fa02a6130a3515b5e317f8b19d55121e3ec1656b646aa

            SHA512

            931d3f807f020b623b4bfe98b0c4c793ffe44c047f41c4740be9fa39d80b649bb261ec99d40e64d478e90c576e9da9ead3bcd59fd6be769ddfb36820363b934f

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            158KB

            MD5

            ff56a2227f34a726e44a2b3db67824cd

            SHA1

            23011b619511d705a45b05e7bfe3783564c52367

            SHA256

            c607990d8de2880ea0fcdb979d63bf5d5a1cbe1007f87fd6a88549df36eeb5ce

            SHA512

            9e91024e623bc2b29774d40d233990f5793dc172e046a0864f0380378d231ba6131628208d92fd3f07afa8ab2777bacb3a79a06bf6fb9cd95acf7c21e52c86cf

          • memory/568-86-0x0000000000000000-mapping.dmp
          • memory/652-70-0x0000000000000000-mapping.dmp
          • memory/936-58-0x0000000000000000-mapping.dmp
          • memory/1220-62-0x0000000000000000-mapping.dmp
          • memory/1304-64-0x0000000000000000-mapping.dmp
          • memory/1360-61-0x0000000000000000-mapping.dmp
          • memory/1468-81-0x0000000000000000-mapping.dmp
          • memory/1480-87-0x0000000000000000-mapping.dmp
          • memory/1568-76-0x0000000000000000-mapping.dmp
          • memory/1876-80-0x0000000000000000-mapping.dmp
          • memory/1884-57-0x0000000000000000-mapping.dmp
          • memory/2004-54-0x0000000074AB1000-0x0000000074AB3000-memory.dmp
            Filesize

            8KB

          • memory/2004-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/2004-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB