Malicious PDF — malware analysis report

Static analysis result for SHA-256 46507c73a95085bd…

MALICIOUS

PDF

39.3 KB Created: 2021-05-15 16:04:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b21b896c38e08f41ce903dc399b32dc5 SHA-1: 78f5b34554beb8aa2808fef8dec51f1c1c2ad316 SHA-256: 46507c73a95085bd939f17cd90dd1c59bf463a82f8644e040166ace653165fae
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for 'Coin Master' game cheats, directing users to a known malicious redirector URL. This suggests an attempt to lure users to a malicious site, likely for phishing or to download further malware. The embedded URL is the primary indicator of malicious intent.

Machine Learning

  • Nyx PDF Classifier clean score 0.0127

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-links-free-spins-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_off000033c1.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x33C1 24996 bytes
SHA-256: 168686333be09a01d552dc172cd6ca5ed1c31335f09ab4cd10640f07a9dbd2c6
font_01_sfnt_off00006beb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6BEB 3664 bytes
SHA-256: d36d529b7c516d4556cff9289e20797a41abe86998247c34ed5ed89593e15525
font_02_sfnt_off000078d4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x78D4 18056 bytes
SHA-256: 95118de0f1fa2d9d8d6d34d7ce9f6e9c56d43c25fce4d2a4bd556d275959b9e0

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