Malicious PDF — malware analysis report

Static analysis result for SHA-256 c56d9cf5d727bb67…

MALICIOUS

PDF

36.6 KB Created: 2021-05-22 13:17:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: dabbe2b1135e64d06065c38efc677414 SHA-1: df00f34cb21c2d48497e142ab0961618bec67ca5 SHA-256: c56d9cf5d727bb67d6cd1a59d40dfabc351c7087d04a62ac98fac2b3538160d7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains social engineering lures, including a call-to-action button and text promoting a fake Minecraft generator. It embeds multiple URLs that likely lead to malicious downloads or further compromise. The presence of PDF_URI and SE_CLICKFIX heuristics indicates the document is designed to trick the user into executing external content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

Heuristics 4

  • ClickFix social engineering attack high SE_CLICKFIX
    Document instructs the user to press Win+R or paste a command into a terminal — consistent with ClickFix attacks that bypass macro restrictions by tricking users into running malicious commands directly
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/479516143/minecraft-windows-10-free-with-java-game-hack
    • http://regnataudio.com/images/coin-master-mod-version-free-download-v344_GM406889139.pdf
    • http://regnataudio.com/images/easy-robux_GM431946152.pdf
    • http://regnataudio.com/images/rare-free-links-to-coin-master_GM406889139.pdf
    • http://regnataudio.com/images/free-spins-on-coin-master-app_GM406889139.pdf
    • http://regnataudio.com/images/www-coin-master-hack-tk_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_002_off000032cc.bin
6925cdf82a3e9afae97020a6a51396f2c0339e47db7a623add0e6c727f2c8cc7		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x32CC 25044 bytes
font_01_sfnt_off00006bd4.bin
ec0d7e7957d6d3ec4a312ebe7c12434b242d64f4f861d318395950ba1ef4cb73		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6BD4 18972 bytes

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