Analysis

  • max time kernel
    144s
  • max time network
    130s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    24/11/2023, 12:21

General

  • Target

    83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.exe

  • Size

    4.9MB

  • MD5

    a3b3b279ff100c9e30e2cd977fce4286

  • SHA1

    1db7d65ab15a8066b63d2ff8d0d132f32026b63a

  • SHA256

    83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117

  • SHA512

    e28e986362c87136be18fac4cf3a278f4d4f49f580206b8adf753c4da77b734cbe2d42c48361e23db77f6b4e6ed6b4876d21ed471c094adef667e85987d82944

  • SSDEEP

    98304:Xc5LyCUfJ+K0OBvdcTIjudjbaS2mCWk/lS5pXHBN+zkQZMFzriQEQYlE:szUfJ+K0OHcIjudbh21WQlSvBAEGQYu

Score
7/10

Malware Config

Signatures

  • Executes dropped EXE 3 IoCs
  • Loads dropped DLL 3 IoCs
  • Unexpected DNS network traffic destination 1 IoCs

    Network traffic to other servers than the configured DNS servers was detected on the DNS port.

  • 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 Program Files directory 19 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Runs net.exe
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.exe
    "C:\Users\Admin\AppData\Local\Temp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4724
    • C:\Users\Admin\AppData\Local\Temp\is-HB0Q4.tmp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-HB0Q4.tmp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.tmp" /SL5="$60226,4923723,54272,C:\Users\Admin\AppData\Local\Temp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of WriteProcessMemory
      PID:996
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:4232
        • C:\Program Files (x86)\Common Files\TVCross\TVCross.exe
          "C:\Program Files (x86)\Common Files\TVCross\TVCross.exe" -i
          3⤵
          • Executes dropped EXE
          PID:2136
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 24
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3128
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 24
            4⤵
              PID:4660
          • C:\Program Files (x86)\Common Files\TVCross\TVCross.exe
            "C:\Program Files (x86)\Common Files\TVCross\TVCross.exe" -s
            3⤵
            • Executes dropped EXE
            PID:5064

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\Common Files\TVCross\TVCross.exe

              Filesize

              4.0MB

              MD5

              d8fb43a1267e2e61ebab8b3063b234db

              SHA1

              4b6cc720b15990c1f1a7b102e5ced7e5ddb11ce0

              SHA256

              3de538b525674a9412e62cdf89e5fdef96ec06eb1d929e7b9563aff8d49969fb

              SHA512

              5a849fea034c98abf504da3d69ae1dcea7cd58a65a4ce0048f192f91e465c6a1cabc5716db535b162c68239f345a5f78ad4e4353ac377c0ce330f34be8576c50

            • C:\Program Files (x86)\Common Files\TVCross\TVCross.exe

              Filesize

              4.0MB

              MD5

              d8fb43a1267e2e61ebab8b3063b234db

              SHA1

              4b6cc720b15990c1f1a7b102e5ced7e5ddb11ce0

              SHA256

              3de538b525674a9412e62cdf89e5fdef96ec06eb1d929e7b9563aff8d49969fb

              SHA512

              5a849fea034c98abf504da3d69ae1dcea7cd58a65a4ce0048f192f91e465c6a1cabc5716db535b162c68239f345a5f78ad4e4353ac377c0ce330f34be8576c50

            • C:\Program Files (x86)\Common Files\TVCross\TVCross.exe

              Filesize

              4.0MB

              MD5

              d8fb43a1267e2e61ebab8b3063b234db

              SHA1

              4b6cc720b15990c1f1a7b102e5ced7e5ddb11ce0

              SHA256

              3de538b525674a9412e62cdf89e5fdef96ec06eb1d929e7b9563aff8d49969fb

              SHA512

              5a849fea034c98abf504da3d69ae1dcea7cd58a65a4ce0048f192f91e465c6a1cabc5716db535b162c68239f345a5f78ad4e4353ac377c0ce330f34be8576c50

            • C:\Users\Admin\AppData\Local\Temp\is-HB0Q4.tmp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.tmp

              Filesize

              683KB

              MD5

              f507ce43ea08d1721816ad4b0e090f50

              SHA1

              e4f02bcd410bddabea4c741838d9a88386547629

              SHA256

              d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

              SHA512

              37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

            • C:\Users\Admin\AppData\Local\Temp\is-HB0Q4.tmp\83135612f8e75c892ea09035d08b1a0d9b72d0aed017c4d6b48af13307691117.tmp

              Filesize

              683KB

              MD5

              f507ce43ea08d1721816ad4b0e090f50

              SHA1

              e4f02bcd410bddabea4c741838d9a88386547629

              SHA256

              d2218bde27d66f28e3caf15e899653a9357ebdc7adf9a763b687f6c03c93e5e1

              SHA512

              37b2f92df632f75447572df840a236ef01021e8291536bf2e8156179333f770afdd8bcbf50cb05bbdbdaa53c00ace46119290800b115823ea035a2389a3f6693

            • \Users\Admin\AppData\Local\Temp\is-RIHCN.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-RIHCN.tmp\_isetup\_isdecmp.dll

              Filesize

              13KB

              MD5

              a813d18268affd4763dde940246dc7e5

              SHA1

              c7366e1fd925c17cc6068001bd38eaef5b42852f

              SHA256

              e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

              SHA512

              b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

            • \Users\Admin\AppData\Local\Temp\is-RIHCN.tmp\_isetup\_isdecmp.dll

              Filesize

              13KB

              MD5

              a813d18268affd4763dde940246dc7e5

              SHA1

              c7366e1fd925c17cc6068001bd38eaef5b42852f

              SHA256

              e19781aabe466dd8779cb9c8fa41bbb73375447066bb34e876cf388a6ed63c64

              SHA512

              b310ed4cd2e94381c00a6a370fcb7cc867ebe425d705b69caaaaffdafbab91f72d357966916053e72e68ecf712f2af7585500c58bb53ec3e1d539179fcb45fb4

            • memory/996-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/996-70-0x0000000000400000-0x00000000004BA000-memory.dmp

              Filesize

              744KB

            • memory/996-72-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/2136-59-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/2136-64-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/2136-63-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/2136-60-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/4724-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/4724-69-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/5064-71-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-89-0x0000000000AC0000-0x0000000000B6D000-memory.dmp

              Filesize

              692KB

            • memory/5064-67-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-75-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-76-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-79-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-82-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-85-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-88-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-68-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-94-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-97-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-98-0x0000000000AC0000-0x0000000000B6D000-memory.dmp

              Filesize

              692KB

            • memory/5064-101-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-104-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-107-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-111-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-114-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB

            • memory/5064-117-0x0000000000400000-0x000000000080E000-memory.dmp

              Filesize

              4.1MB