Malicious PDF — malware analysis report

Static analysis result for SHA-256 3556ee97a8868edb…

MALICIOUS

PDF

35.5 KB Created: 2021-05-12 22:07:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 7abbe5e617377c8a412c2c6411c58282 SHA-1: 6915a3c9d966c884fb7e5a381143ec65f57ac179 SHA-256: 3556ee97a8868edbbddc480e8b2b9d335762f90b2d684453e95df6adb9148fa0
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and text explicitly promoting a "Coin Master Hack" and a "CLICK HERE TO ACCESS COIN MASTER GENERATOR" button, indicating a social engineering lure. The primary malicious URL identified, https://netcdn.xyz/app/406889139/coin-master-hack-no-verification-ios-game-hack, is flagged as a malicious redirector. While no scripts were explicitly extracted, the PDF structure and heuristic firings suggest an attempt to redirect the user to potentially malicious content, likely for credential harvesting or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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/406889139/coin-master-hack-no-verification-ios-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_off0000322d.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x322D 24640 bytes
SHA-256: 774868eabcf7c2fd28fea37b88c2a9c7d95a70c49760a2c135e76047c7ae25fd
font_01_sfnt_off00006a96.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6A96 17848 bytes
SHA-256: c4884f8c05e1433a2d1accc1ec4a5d42138312ac7e368fbb840caf580b16b2a5

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