Malicious PDF — malware analysis report

Static analysis result for SHA-256 24111ba5d9183bcb…

MALICIOUS

PDF

29.0 KB Created: 2021-07-19 08:40:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: fe27ccd93b479dc8a5c9add685409359 SHA-1: 79c728439fca9e5b5917542adaaa3e63e5dca9eb SHA-256: 24111ba5d9183bcbef330dbc0115eebce33f60d7d97d6912358bf62de223660e
138 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically a lure for free Minecraft hosting and game hacks. The document body also contains similar lures and a call-to-action button, indicating a phishing or scam attempt. No scripts were extracted, but the primary malicious activity observed is the redirection to a potentially harmful URL.

Machine Learning

  • Nyx PDF Classifier clean score 0.0553

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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 http://netcdn.tw/app/479516143/free-minecraft-hosting-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
font_00_sfnt_off0000217c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x217C 21756 bytes
SHA-256: 7516733187a23283fc6f7cd67d95c93b780c784107e82c037185f377d8548118
font_01_sfnt_off000050e5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x50E5 17996 bytes
SHA-256: bf6ae4c6721fa3eadf2b386a9cfec38fcd2e671f0767c49619a657aa344fd652

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