Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc4218f7cbdec0e3…

MALICIOUS

PDF

36.7 KB Created: 2021-05-17 12:37:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-26
MD5: cf97a27ddbdd699c5993ab0c794094c7 SHA-1: d3816cb8b1a2f3c43f781c44c386fe2e16553adc SHA-256: dc4218f7cbdec0e3d557c7574b75a54f8c1119e0e38c86d6cd35c33087233779
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains embedded links that redirect to known malicious infrastructure, specifically advertising a 'free Minecraft Capes No Mods Game Hack'. The document body also contains a call-to-action phrase, suggesting a phishing or scam attempt. While no scripts were directly extracted, the PDF structure and malicious links indicate an attempt to trick the user into visiting a harmful site, likely for further exploitation or credential harvesting.

Machine Learning

  • Nyx PDF Classifier clean score 0.0292

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • 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
  • 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/free-minecraft-capes-no-mods-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off0000362a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x362A 25080 bytes
SHA-256: e92707f68a910dba6850c4c3893b6e61b420c2281554aa8da9c685eafed798e7
font_01_sfnt_off00006f0e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6F0E 18060 bytes
SHA-256: d2580fb4aafe993e5dab330080fdbce20cb4b143aeb227db28560abf8afc6474

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