Malicious PDF — malware analysis report

Static analysis result for SHA-256 7765dd0661bcd806…

MALICIOUS

PDF

36.9 KB Created: 2021-05-12 05:01:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 6dc8cc3ebd0e962542504b4bc060b717 SHA-1: 30e69d214d77f570250f22611ea4601005cfb321 SHA-256: 7765dd0661bcd8063e71cd4f433dbb1fc9aa1a72ea0bdf8f9f49bd78e9eb1749
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF file contains a link that redirects to malicious infrastructure, masquerading as a game hack generator. This lure is designed to trick users into visiting a potentially harmful website. The presence of multiple redirector links and the nature of the lure suggest a phishing or scam attempt.

Machine Learning

  • Nyx PDF Classifier clean score 0.0313

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/free-card-collection-in-coin-master-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_off000033dd.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33DD 26120 bytes
SHA-256: d76bb59586594dfd3973f7cbc3dd37a117e81a12fe1f5f81c420bd84298abec7
font_01_sfnt_off00006ff4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FF4 17960 bytes
SHA-256: edc3bf59ec5464d2d6a561628fecaf1a0820252d93c85382beb4d086388a752e

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