Analysis

  • max time kernel
    143s
  • max time network
    131s
  • platform
    windows10-1703_x64
  • resource
    win10-20231020-en
  • resource tags

    arch:x64arch:x86image:win10-20231020-enlocale:en-usos:windows10-1703-x64system
  • submitted
    11/12/2023, 03:08

General

  • Target

    f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.exe

  • Size

    6.9MB

  • MD5

    09b820a02cc083cb26c71f62a087c6fb

  • SHA1

    6a6bdd6507cf18e164b1c41a25b18d63abf4a38c

  • SHA256

    f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80

  • SHA512

    2c1dc1875dd7dbce85d7eab98d2c7a063497424144bb2b4208082a0143c258ab94a9646e405b91d68cba50a86e38e5963ecc35638a2ee7c4b4399975f7b0e387

  • SSDEEP

    196608:6Snj/mmV+GsH+bNueuJRAZVAOk5Vvz+tqE9AmEkzj:6SjumV+jHUodIjk5VzfE9Awzj

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 63 IoCs
  • Runs net.exe
  • Suspicious use of FindShellTrayWindow 1 IoCs
  • Suspicious use of WriteProcessMemory 18 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.exe
    "C:\Users\Admin\AppData\Local\Temp\f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:504
    • C:\Users\Admin\AppData\Local\Temp\is-GRVRJ.tmp\f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-GRVRJ.tmp\f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.tmp" /SL5="$80216,6998999,54272,C:\Users\Admin\AppData\Local\Temp\f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3780
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:5056
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3460
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:1788
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:3056
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:292

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

            • C:\Program Files (x86)\CRTGame\crtgame.exe

              Filesize

              1.8MB

              MD5

              62f4950c9a0b250fd8357755fe5cbac2

              SHA1

              ba3606ef0b7ee56ed2fd0e5e5b4c029f333bacc3

              SHA256

              c7a3382bb457516ab289088cd257ddd286ec26afb266ec1dc1d2a85d0d913729

              SHA512

              0a427905917a2d5218e2231bc759d2126af840d296ee04eab2e845efae0445f43ad9b0b0e619eeebd8a89455de95c27cd76cc9f26cd979ce8446535a048de170

            • C:\Program Files (x86)\CRTGame\crtgame.exe

              Filesize

              2.1MB

              MD5

              2415393d2f2fa86c044408d5132cf85b

              SHA1

              fff07515e83a6b54776dab3846e968040708e169

              SHA256

              823e49580058cc0fa454127299a9fa01a74781707deda9ac92d7be62637d6abc

              SHA512

              af9e3d93e650e0b301cd8ed838c56f091869c5468b0aaa262f6dbadc413901890362ba5d836cd406319403c35f50b35cd863c83318edb355cb294d53f0b95eaa

            • C:\Program Files (x86)\CRTGame\crtgame.exe

              Filesize

              960KB

              MD5

              770c1ab68575629fe6e567107590427a

              SHA1

              13d145e2284f6c6fe4756fd4b4bdde23ebaace97

              SHA256

              de9a4be48327f824bcea2571cff04eea36eb8d3de8a9c9155e90626f71a7dd14

              SHA512

              04f20f0ec9323fc9295bc139225088f041bdaef3b2052662f102508c6990c904043d341ca049ab6cafeaed1f113ce2af76c5f23e70eb7b7fbdb19fdfb937532c

            • C:\Users\Admin\AppData\Local\Temp\is-GRVRJ.tmp\f25b8917664d84a321a44e84282af373419b6d3eb5481a9413beee5e90922c80.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-BT8AD.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-BT8AD.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/504-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/504-158-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/1788-157-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-164-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-197-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-204-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-188-0x0000000000770000-0x0000000000811000-memory.dmp

              Filesize

              644KB

            • memory/1788-207-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-194-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-160-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-191-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-201-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-165-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-168-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-171-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-174-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-177-0x0000000000770000-0x0000000000811000-memory.dmp

              Filesize

              644KB

            • memory/1788-178-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-181-0x0000000000770000-0x0000000000811000-memory.dmp

              Filesize

              644KB

            • memory/1788-184-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/1788-187-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/3460-151-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/3460-154-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/3460-153-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/3460-150-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/3780-161-0x0000000000610000-0x0000000000611000-memory.dmp

              Filesize

              4KB

            • memory/3780-159-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/3780-6-0x0000000000610000-0x0000000000611000-memory.dmp

              Filesize

              4KB