Analysis

  • max time kernel
    145s
  • max time network
    132s
  • platform
    windows10-1703_x64
  • resource
    win10-20231023-en
  • resource tags

    arch:x64arch:x86image:win10-20231023-enlocale:en-usos:windows10-1703-x64system
  • submitted
    10/12/2023, 22:36

General

  • Target

    dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.exe

  • Size

    6.9MB

  • MD5

    a18b5a05e9f66dc8e913299d736a174e

  • SHA1

    1cee52af514556b6cd8a9ab7693c1ad39829384c

  • SHA256

    dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec

  • SHA512

    4cba9d086d7e8d258ba841164e663b923bc070ac26a648fb73122f8a3b922f89f2aeae4bbcbafa6df9d56c36b9371b20e25e0157d866aa065c0e29ae43801750

  • SSDEEP

    196608:zxnTNzjsOzc7TGHscDgcXbIdslX38dgFYJzj:5NztzQlcDPXus98d9Jzj

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\dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.exe
    "C:\Users\Admin\AppData\Local\Temp\dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.exe"
    1⤵
    • Suspicious use of WriteProcessMemory
    PID:4604
    • C:\Users\Admin\AppData\Local\Temp\is-IEST6.tmp\dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.tmp
      "C:\Users\Admin\AppData\Local\Temp\is-IEST6.tmp\dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.tmp" /SL5="$7019A,7025884,54272,C:\Users\Admin\AppData\Local\Temp\dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.exe"
      2⤵
      • Executes dropped EXE
      • Loads dropped DLL
      • Drops file in Program Files directory
      • Suspicious use of FindShellTrayWindow
      • Suspicious use of WriteProcessMemory
      PID:4620
      • C:\Windows\SysWOW64\schtasks.exe
        "C:\Windows\system32\schtasks.exe" /Query
        3⤵
          PID:1728
        • C:\Program Files (x86)\CRTGame\crtgame.exe
          "C:\Program Files (x86)\CRTGame\crtgame.exe" -i
          3⤵
          • Executes dropped EXE
          PID:3500
        • C:\Windows\SysWOW64\net.exe
          "C:\Windows\system32\net.exe" helpmsg 10
          3⤵
          • Suspicious use of WriteProcessMemory
          PID:1772
          • C:\Windows\SysWOW64\net1.exe
            C:\Windows\system32\net1 helpmsg 10
            4⤵
              PID:4852
          • C:\Program Files (x86)\CRTGame\crtgame.exe
            "C:\Program Files (x86)\CRTGame\crtgame.exe" -s
            3⤵
            • Executes dropped EXE
            PID:2252

      Network

            MITRE ATT&CK Enterprise v15

            Replay Monitor

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            Downloads

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

              Filesize

              2.1MB

              MD5

              3362bac458070e33d0cabcda1e4b735c

              SHA1

              76ac1f5b96667d9621eedd92ab0704b9c7a129b0

              SHA256

              4dbfd9df16a57d8ff7a00a378fe737efc179f53f2ce975daeaedbaa6ab8bcecd

              SHA512

              59ed8a9d16e100ad91d98ad3a08eabe148234633e59bfb4bef1b63e5a54c3e63193f088ad1538c4898a7a6ac5ead65a2e244ae64bc5325bbf87e763474c5a5ce

            • C:\Users\Admin\AppData\Local\Temp\is-IEST6.tmp\dc89f6a8cdffacd88e5b7b370d433a845e94e9a17b8d6e015bc2246c4b2b42ec.tmp

              Filesize

              687KB

              MD5

              f448d7f4b76e5c9c3a4eaff16a8b9b73

              SHA1

              31808f1ffa84c954376975b7cdb0007e6b762488

              SHA256

              7233b85eb0f8b3aa5cae3811d727aa8742fec4d1091c120a0fe15006f424cc49

              SHA512

              f8197458cd2764c0b852dac34f9bf361110a7dc86903024a97c7bcd3f77b148342bf45e3c2b60f6af8198ae3b83938dbaad5e007d71a0f88006f3a0618cf36f4

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

              Filesize

              2KB

              MD5

              a69559718ab506675e907fe49deb71e9

              SHA1

              bc8f404ffdb1960b50c12ff9413c893b56f2e36f

              SHA256

              2f6294f9aa09f59a574b5dcd33be54e16b39377984f3d5658cda44950fa0f8fc

              SHA512

              e52e0aa7fe3f79e36330c455d944653d449ba05b2f9abee0914a0910c3452cfa679a40441f9ac696b3ccf9445cbb85095747e86153402fc362bb30ac08249a63

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

              Filesize

              19KB

              MD5

              3adaa386b671c2df3bae5b39dc093008

              SHA1

              067cf95fbdb922d81db58432c46930f86d23dded

              SHA256

              71cd2f5bc6e13b8349a7c98697c6d2e3fcdeea92699cedd591875bea869fae38

              SHA512

              bbe4187758d1a69f75a8cca6b3184e0c20cf8701b16531b55ed4987497934b3c9ef66ecd5e6b83c7357f69734f1c8301b9f82f0a024bb693b732a2d5760fd303

            • memory/2252-188-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-166-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-208-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-205-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-202-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-198-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-156-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-158-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-195-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-192-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-161-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-189-0x00000000007E0000-0x0000000000882000-memory.dmp

              Filesize

              648KB

            • memory/2252-165-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-185-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-169-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-172-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-175-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-178-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/2252-180-0x00000000007E0000-0x0000000000882000-memory.dmp

              Filesize

              648KB

            • memory/3500-154-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3500-153-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3500-151-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/3500-150-0x0000000000400000-0x000000000061E000-memory.dmp

              Filesize

              2.1MB

            • memory/4604-0-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/4604-159-0x0000000000400000-0x0000000000414000-memory.dmp

              Filesize

              80KB

            • memory/4620-9-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/4620-162-0x00000000001F0000-0x00000000001F1000-memory.dmp

              Filesize

              4KB

            • memory/4620-160-0x0000000000400000-0x00000000004BC000-memory.dmp

              Filesize

              752KB