Malicious PDF — malware analysis report

Static analysis result for SHA-256 a82f417ab59b70ce…

MALICIOUS

PDF

39.7 KB Created: 2021-05-10 12:18:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8d2d9c22aca45ac6ae1e5fb7da790853 SHA-1: 2aa9f4b9061f63c87e31d84398560a4c09dfb295 SHA-256: a82f417ab59b70ced5057e5ba21b97f736b50556ff43851bbff637e2e0dee80d
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded links pointing to malicious redirector infrastructure, specifically advertising a "free generator / game hack" for Minecraft. The document body also contains a call-to-action phrase, reinforcing the lure. The primary malicious URL identified is https://netcdn.xyz/app/479516143/how-to-get-minecraft-for-free-on-phone-game-hack, which is flagged as a known malicious redirector. While no scripts were explicitly extracted, the PDF format itself can embed JavaScript, and the heuristic firings suggest a client-side redirection or download attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0128

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/how-to-get-minecraft-for-free-on-phone-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003543.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3543 25812 bytes
SHA-256: 46d8a959cdad8c0b6f6bc9ce825891c387d4fdd6b1cb226c0ec9013346ab84a5
font_01_sfnt_off00007072.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7072 2824 bytes
SHA-256: 61b3a573627d4f03d30684157e1627da3b4499cefab0fdf17b45999135b0250b
font_02_sfnt_off00007a19.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7A19 18192 bytes
SHA-256: 90b6a34edb34d309cd556a6b23817db9766b775643cedc81c4ce7203f03c64d4

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