Analysis

  • max time kernel
    45s
  • max time network
    50s
  • platform
    windows7_x64
  • resource
    win7-20220901-en
  • resource tags

    arch:x64arch:x86image:win7-20220901-enlocale:en-usos:windows7-x64system
  • submitted
    23-11-2022 10:34

General

  • Target

    07970a16b5b821cbae9a0c9926be6796ba999456c3df78d36f3ec351932b68b9.exe

  • Size

    603KB

  • MD5

    deaccc06978e57e52b0796a10c4336e3

  • SHA1

    1c4261163af0ac76610f4987efc3ed27076e0ede

  • SHA256

    07970a16b5b821cbae9a0c9926be6796ba999456c3df78d36f3ec351932b68b9

  • SHA512

    c60959fbc088242db2d00cbd7e2f673ec3448ed1a4b130104edcd74d10ce7a0f07aeae18e460d656df704f2f27ffc6363a3e69cf7655fd42a73e08c913dcc8ce

  • SSDEEP

    12288:bIny5DYT9eHsZ/2UF+kjNiVEKZ5PAsUafBFo06Woqfa4EEkz7T:jUT9zuUs+9KZVA216Woqy4EtT

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\07970a16b5b821cbae9a0c9926be6796ba999456c3df78d36f3ec351932b68b9.exe
    "C:\Users\Admin\AppData\Local\Temp\07970a16b5b821cbae9a0c9926be6796ba999456c3df78d36f3ec351932b68b9.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:1368
    • C:\Windows\SysWOW64\net.exe
      net stop nethttpservice
      2⤵
      • Suspicious use of WriteProcessMemory
      PID:984
      • C:\Windows\SysWOW64\net1.exe
        C:\Windows\system32\net1 stop nethttpservice
        3⤵
          PID:1644
      • C:\Windows\SysWOW64\net.exe
        net stop serviceupdater
        2⤵
        • Suspicious use of WriteProcessMemory
        PID:392
        • C:\Windows\SysWOW64\net1.exe
          C:\Windows\system32\net1 stop serviceupdater
          3⤵
            PID:664
        • C:\Windows\SysWOW64\installd.exe
          "C:\Windows\system32\installd.exe" nethfdrv
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:688
        • C:\Windows\SysWOW64\nethtsrv.exe
          "C:\Windows\system32\nethtsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          • Loads dropped DLL
          PID:1744
        • C:\Windows\SysWOW64\netupdsrv.exe
          "C:\Windows\system32\netupdsrv.exe" -nfdi
          2⤵
          • Executes dropped EXE
          PID:1156
        • C:\Windows\SysWOW64\net.exe
          net start nethttpservice
          2⤵
          • Suspicious use of WriteProcessMemory
          PID:1944
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 start nethttpservice
            3⤵
              PID:1476
          • C:\Windows\SysWOW64\net.exe
            net start serviceupdater
            2⤵
            • Suspicious use of WriteProcessMemory
            PID:1824
            • C:\Windows\SysWOW64\net1.exe
              C:\Windows\system32\net1 start serviceupdater
              3⤵
                PID:952
          • C:\Windows\SysWOW64\nethtsrv.exe
            C:\Windows\SysWOW64\nethtsrv.exe
            1⤵
            • Executes dropped EXE
            • Loads dropped DLL
            • Suspicious use of AdjustPrivilegeToken
            PID:1876
          • C:\Windows\SysWOW64\netupdsrv.exe
            C:\Windows\SysWOW64\netupdsrv.exe
            1⤵
            • Executes dropped EXE
            PID:1684

          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

            0b506a3278954495da07e2d205c15315

            SHA1

            6bfbf424c1e393a32d314c8ba69cee61b0b9a41c

            SHA256

            90de4ff56f3f3529b807d567e07bbaa05b1cbcdba18844748c18d3bf3e98639e

            SHA512

            1f85897d3287a5ab88bfb0def41df6feb36fb04aae46d3740ecffb29a95c5c39e192430fd616aaf5758c1ddc9b65197d3be054e1e08bd2ff2006a12cc4352359

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

            241KB

            MD5

            7ca1600c2ab2d0f789ed0767f51ad069

            SHA1

            f9596a115d8739a1e1768f8e643284322f0a14a3

            SHA256

            02c3d260d13199c5bcb57dd9c1f9635f648074ecffb0d24f16843680de551d0e

            SHA512

            c4e5a1344539da91d03eaa6419cef5197311ecf4d4ed8fc93320063de40624ec73b88cfa6b4143992e7ed29e91481696df4f19314f432593793020ac1c5999b0

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

            108KB

            MD5

            7b4b654e4e9c4550a7ab72679db2f5a0

            SHA1

            45631f0c35384910fab1ecd165ebe22856773369

            SHA256

            7a3317461c2418d050e7b48f00f9829376de20e44576aa7353e8dc66280729df

            SHA512

            642c961fc88d7e83b2900e714162179e01a5d4529939b490d2efdf53ccd680f1939900253e0f2d6e627c8cb7d208627e53d9bc844ed7ef6f8346ce6337c8d4ba

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

            177KB

            MD5

            ba69d838c7fd93c4d27f187d45f14198

            SHA1

            88b71d8c41760398aca1309e0bcd34dd53db3b48

            SHA256

            b1f6f7ef01b0c235fcb3f4f309f8275dad10e62ea5e04f423f814858b4229463

            SHA512

            9f2ca6a35bdc91f3db94712e2ef32c743090cf573c3c83c0f24c09a5e9a172ee382b04db9dce3c9679d4b2ea268eb90ab42470ba787ba5be691828b4b892f5c9

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

            177KB

            MD5

            ba69d838c7fd93c4d27f187d45f14198

            SHA1

            88b71d8c41760398aca1309e0bcd34dd53db3b48

            SHA256

            b1f6f7ef01b0c235fcb3f4f309f8275dad10e62ea5e04f423f814858b4229463

            SHA512

            9f2ca6a35bdc91f3db94712e2ef32c743090cf573c3c83c0f24c09a5e9a172ee382b04db9dce3c9679d4b2ea268eb90ab42470ba787ba5be691828b4b892f5c9

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

            159KB

            MD5

            6ce5fac68adaa0775ec2050f2ba969dd

            SHA1

            81692cc9f185c61ae055c1d2da95e721af274093

            SHA256

            3389167cb8aee82bfd62e0ba46f6be1379b1702e7053af64bd70b9cd8107e57e

            SHA512

            6da87b2df93f4159b9585ca27dbf9c42d34e4f4a8e658db5719931bf3ef15dfb0052739570b827bf51895052a37aaf53af84df494c9de3166573e2faf708834b

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

            159KB

            MD5

            6ce5fac68adaa0775ec2050f2ba969dd

            SHA1

            81692cc9f185c61ae055c1d2da95e721af274093

            SHA256

            3389167cb8aee82bfd62e0ba46f6be1379b1702e7053af64bd70b9cd8107e57e

            SHA512

            6da87b2df93f4159b9585ca27dbf9c42d34e4f4a8e658db5719931bf3ef15dfb0052739570b827bf51895052a37aaf53af84df494c9de3166573e2faf708834b

          • \Users\Admin\AppData\Local\Temp\nsy2D0C.tmp\System.dll
            Filesize

            11KB

            MD5

            c17103ae9072a06da581dec998343fc1

            SHA1

            b72148c6bdfaada8b8c3f950e610ee7cf1da1f8d

            SHA256

            dc58d8ad81cacb0c1ed72e33bff8f23ea40b5252b5bb55d393a0903e6819ae2f

            SHA512

            d32a71aaef18e993f28096d536e41c4d016850721b31171513ce28bbd805a54fd290b7c3e9d935f72e676a1acfb4f0dcc89d95040a0dd29f2b6975855c18986f

          • \Users\Admin\AppData\Local\Temp\nsy2D0C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy2D0C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy2D0C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Users\Admin\AppData\Local\Temp\nsy2D0C.tmp\nsExec.dll
            Filesize

            6KB

            MD5

            acc2b699edfea5bf5aae45aba3a41e96

            SHA1

            d2accf4d494e43ceb2cff69abe4dd17147d29cc2

            SHA256

            168a974eaa3f588d759db3f47c1a9fdc3494ba1fa1a73a84e5e3b2a4d58abd7e

            SHA512

            e29ea10ada98c71a18273b04f44f385b120d4e8473e441ce5748cfa44a23648814f2656f429b85440157988c88de776c6ac008dc38bf09cbb746c230a46c69fe

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0b506a3278954495da07e2d205c15315

            SHA1

            6bfbf424c1e393a32d314c8ba69cee61b0b9a41c

            SHA256

            90de4ff56f3f3529b807d567e07bbaa05b1cbcdba18844748c18d3bf3e98639e

            SHA512

            1f85897d3287a5ab88bfb0def41df6feb36fb04aae46d3740ecffb29a95c5c39e192430fd616aaf5758c1ddc9b65197d3be054e1e08bd2ff2006a12cc4352359

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0b506a3278954495da07e2d205c15315

            SHA1

            6bfbf424c1e393a32d314c8ba69cee61b0b9a41c

            SHA256

            90de4ff56f3f3529b807d567e07bbaa05b1cbcdba18844748c18d3bf3e98639e

            SHA512

            1f85897d3287a5ab88bfb0def41df6feb36fb04aae46d3740ecffb29a95c5c39e192430fd616aaf5758c1ddc9b65197d3be054e1e08bd2ff2006a12cc4352359

          • \Windows\SysWOW64\hfnapi.dll
            Filesize

            106KB

            MD5

            0b506a3278954495da07e2d205c15315

            SHA1

            6bfbf424c1e393a32d314c8ba69cee61b0b9a41c

            SHA256

            90de4ff56f3f3529b807d567e07bbaa05b1cbcdba18844748c18d3bf3e98639e

            SHA512

            1f85897d3287a5ab88bfb0def41df6feb36fb04aae46d3740ecffb29a95c5c39e192430fd616aaf5758c1ddc9b65197d3be054e1e08bd2ff2006a12cc4352359

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            7ca1600c2ab2d0f789ed0767f51ad069

            SHA1

            f9596a115d8739a1e1768f8e643284322f0a14a3

            SHA256

            02c3d260d13199c5bcb57dd9c1f9635f648074ecffb0d24f16843680de551d0e

            SHA512

            c4e5a1344539da91d03eaa6419cef5197311ecf4d4ed8fc93320063de40624ec73b88cfa6b4143992e7ed29e91481696df4f19314f432593793020ac1c5999b0

          • \Windows\SysWOW64\hfpapi.dll
            Filesize

            241KB

            MD5

            7ca1600c2ab2d0f789ed0767f51ad069

            SHA1

            f9596a115d8739a1e1768f8e643284322f0a14a3

            SHA256

            02c3d260d13199c5bcb57dd9c1f9635f648074ecffb0d24f16843680de551d0e

            SHA512

            c4e5a1344539da91d03eaa6419cef5197311ecf4d4ed8fc93320063de40624ec73b88cfa6b4143992e7ed29e91481696df4f19314f432593793020ac1c5999b0

          • \Windows\SysWOW64\installd.exe
            Filesize

            108KB

            MD5

            7b4b654e4e9c4550a7ab72679db2f5a0

            SHA1

            45631f0c35384910fab1ecd165ebe22856773369

            SHA256

            7a3317461c2418d050e7b48f00f9829376de20e44576aa7353e8dc66280729df

            SHA512

            642c961fc88d7e83b2900e714162179e01a5d4529939b490d2efdf53ccd680f1939900253e0f2d6e627c8cb7d208627e53d9bc844ed7ef6f8346ce6337c8d4ba

          • \Windows\SysWOW64\nethtsrv.exe
            Filesize

            177KB

            MD5

            ba69d838c7fd93c4d27f187d45f14198

            SHA1

            88b71d8c41760398aca1309e0bcd34dd53db3b48

            SHA256

            b1f6f7ef01b0c235fcb3f4f309f8275dad10e62ea5e04f423f814858b4229463

            SHA512

            9f2ca6a35bdc91f3db94712e2ef32c743090cf573c3c83c0f24c09a5e9a172ee382b04db9dce3c9679d4b2ea268eb90ab42470ba787ba5be691828b4b892f5c9

          • \Windows\SysWOW64\netupdsrv.exe
            Filesize

            159KB

            MD5

            6ce5fac68adaa0775ec2050f2ba969dd

            SHA1

            81692cc9f185c61ae055c1d2da95e721af274093

            SHA256

            3389167cb8aee82bfd62e0ba46f6be1379b1702e7053af64bd70b9cd8107e57e

            SHA512

            6da87b2df93f4159b9585ca27dbf9c42d34e4f4a8e658db5719931bf3ef15dfb0052739570b827bf51895052a37aaf53af84df494c9de3166573e2faf708834b

          • memory/392-61-0x0000000000000000-mapping.dmp
          • memory/664-62-0x0000000000000000-mapping.dmp
          • memory/688-64-0x0000000000000000-mapping.dmp
          • memory/952-87-0x0000000000000000-mapping.dmp
          • memory/984-57-0x0000000000000000-mapping.dmp
          • memory/1156-76-0x0000000000000000-mapping.dmp
          • memory/1368-54-0x0000000074E41000-0x0000000074E43000-memory.dmp
            Filesize

            8KB

          • memory/1368-59-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1368-90-0x0000000000360000-0x00000000007BE000-memory.dmp
            Filesize

            4.4MB

          • memory/1476-81-0x0000000000000000-mapping.dmp
          • memory/1644-58-0x0000000000000000-mapping.dmp
          • memory/1744-70-0x0000000000000000-mapping.dmp
          • memory/1824-86-0x0000000000000000-mapping.dmp
          • memory/1944-80-0x0000000000000000-mapping.dmp