Malicious PDF — malware analysis report

Static analysis result for SHA-256 68bda5f5c5e9d4c5…

MALICIOUS

PDF

30.7 KB Created: 2021-07-20 16:31:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 26c0a4f5e357f419f9c860d7e8f04dfa SHA-1: d35ca0cfaaec17b0f7bbeeb94e87c8fa3003fc43 SHA-256: 68bda5f5c5e9d4c59b392e39438d52bb2eadc702ad7914a2212cf86a2656c618
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for a game hack redirect lure, pointing to a malicious URL. The document body, though heavily obfuscated, contains text related to downloading Minecraft for free and the malicious URL. This indicates a phishing attempt to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier clean score 0.0486

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 http://netcdn.tw/app/479516143/how-to-download-minecraft-for-free-on-iphone-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_off00002177.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2177 23196 bytes
SHA-256: 28f83590f149c4c26c31b12b0abbf884bfa09cf7f6abe14794314437bdd131a6
font_01_sfnt_off0000558e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x558E 18632 bytes
SHA-256: a38ec870b75b85e502f421fe1ead362eb1db7184f5387a13d9ce5f1a3d5be23c

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