Malicious PDF — malware analysis report

Static analysis result for SHA-256 535ce469abcf2a99…

MALICIOUS

PDF

36.4 KB Created: 2021-05-17 00:53:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c0d81d2b22f70697846c6bc4d764e054 SHA-1: b87375a7383fb742ae86bf374c2068cece02c8c2 SHA-256: 535ce469abcf2a997f5d8719290e8b2b125f33f4dfcf21c545b150dec11348c4
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a malicious link disguised as a lure for 'free Coin Master Spins' and 'game hacks'. This link redirects to known malicious infrastructure, indicating an attempt to trick the user into visiting a compromised site or downloading further malware. The document body explicitly contains phrases like 'Free Coin Master Spins Link' and 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', reinforcing the social engineering aspect.

Machine Learning

  • Nyx PDF Classifier clean score 0.0292

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-coin-master-spins-link-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_off0000334f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x334F 25268 bytes
SHA-256: 62ca597ce2b34dd7626384340b5bb9066b41a55d44ce142ce2230a569f81bae1
font_01_sfnt_off00006dc5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6DC5 18056 bytes
SHA-256: 3a13f115a00b8b7b194300b8b076c3bf70984f89fe406390bc378e2507b22e35

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