Analysis

  • max time kernel
    142s
  • max time network
    148s
  • platform
    windows10-1703_x64
  • resource
    win10-20231129-en
  • resource tags

    arch:x64arch:x86image:win10-20231129-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/12/2023, 22:07

General

  • Target

    20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.exe

  • Size

    6.9MB

  • MD5

    393b4bcd64af365987c4f4f082734af8

  • SHA1

    2c46810a1bfb6bcc4bbc780195b871b375c19689

  • SHA256

    20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf

  • SHA512

    85d86d322f8c6b979131dc3341dc9be9c8894cb54fb8040d37a9b35ad63a241fd02492289792e68a1a5e4384f1648c0dec2b538f288706328e345aca3cb137b8

  • SSDEEP

    196608:DSnj/mmV+GsH+bNueuJRAZVAOk5Vvz+tqE9AmEkzj:DSjumV+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\20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.exe
    "C:\Users\Admin\AppData\Local\Temp\20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:1320
    • C:\Users\Admin\AppData\Local\Temp\is-0BL26.tmp\20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-0BL26.tmp\20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.tmp" /SL5="$D01D4,6998999,54272,C:\Users\Admin\AppData\Local\Temp\20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:3124
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:600
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:4536
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
          3⤵
          • Executes dropped EXE
          PID:2440
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:4512
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:504

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              293KB

              MD5

              ac7f17e06d1885468090a5fb25987d9a

              SHA1

              18b9fe5983bfbfb7bd68983bd18f69e7bf401fed

              SHA256

              2ed4f2ba6b30b6b4e12f7d7e331c193b796a4449c8174529846853aff280f757

              SHA512

              5e11ffacaa42f2790c1faadecaf84e0db9e9a59dfbe81f2ecbd95aad48d3759608d032be4ab80517ee6ea193e8f5d84e9297be677a42eb4d45c3ff00114d578f

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

              Filesize

              219KB

              MD5

              0998c7046e69dfd2bb5618938b4b85f3

              SHA1

              44b7e087563d367eaf6a838cfea6babe625a0d4c

              SHA256

              d5805bdbefd7aed7d7ca8781d135cb3df3a0b4426d3fceb9da030f27f67696be

              SHA512

              3a8e1fbd152708cdad3054839f4d6407a8ee6538bd844598945193cf308fe62c0f61e22d6a9bdfac2332baf0ff3fc081126853a94b7b3aacae89ff33a6a25a38

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

              Filesize

              447KB

              MD5

              21d40aa43af07dfed89ecc154abe0d4e

              SHA1

              ec495679bb1ed7caab978e5facdc659a9ea5f5c8

              SHA256

              f8dfd89a1a644fe3613ea51e88e49440c9c5205e7e46bcada6c717512ee0937f

              SHA512

              277c4e829435ad5d83a8ad0ed7b84cb34fe3d2138031916150665b0bf5c310c89f3f1c3baba5d3a4b098fc4876a7f5b41464206751c72cd76b0b36cb2ece9f1f

            • C:\Users\Admin\AppData\Local\Temp\is-0BL26.tmp\20e4e4a0f1c8957eecbf144fc5c3a395decc3a8e8a78c7879c2b20de09045daf.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

            • \Users\Admin\AppData\Local\Temp\is-T0D9C.tmp\_isetup\_iscrypt.dll

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

            • \Users\Admin\AppData\Local\Temp\is-T0D9C.tmp\_isetup\_isdecmp.dll

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/1320-2-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/1320-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/1320-159-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/2440-161-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-189-0x0000000000790000-0x0000000000831000-memory.dmp

              Filesize

              644KB

            • memory/2440-208-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-205-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-158-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-202-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-198-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-195-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-192-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-165-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-166-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-169-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-172-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-175-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-178-0x0000000000790000-0x0000000000831000-memory.dmp

              Filesize

              644KB

            • memory/2440-179-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-182-0x0000000000790000-0x0000000000831000-memory.dmp

              Filesize

              644KB

            • memory/2440-185-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/2440-188-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/3124-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3124-7-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/3124-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB

            • memory/4536-155-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/4536-151-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/4536-152-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB

            • memory/4536-154-0x0000000000400000-0x000000000061B000-memory.dmp

              Filesize

              2.1MB