Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae75449c09a834b1…

MALICIOUS

PDF

17.6 KB Created: 2021-05-11 06:48:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: dd46b37377f44000e2465845998396b1 SHA-1: 8fc63de349eb23ca1a16556b7f42cbe5a7244911 SHA-256: ae75449c09a834b17bb5b8c12b5a43cecd26c14597ea9814d38c493744364fc4
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a critical heuristic firing for linking to a malicious redirector, specifically disguised as a 'free generator / game hack' for Coin Master. The embedded URL leads to known malicious infrastructure, indicating a phishing or scam attempt. No scripts were extracted, but the document's structure and heuristics strongly suggest a social engineering lure to redirect users to a potentially harmful site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.7532

Heuristics 3

  • 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.
  • 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-play-online-free-game-hack In PDF document text

Related samples 1

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00003437.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3437 6377 bytes
SHA-256: dbcc59933fb7f9fbaa3f887922425e83580e0ff77cd5f3b4d85d41bfcdfb2064

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