Malicious PDF — malware analysis report

Static analysis result for SHA-256 3a54730342e71bf8…

MALICIOUS

PDF

34.9 KB Created: 2021-05-23 08:04:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2c8a6b9bfb059df755a2dbe3ddd4f06d SHA-1: a3d71ad1afb95839bb7646c984024efe0d4fece9 SHA-256: 3a54730342e71bf8694f544c6d6e5e551abbc980c91183cd377bf9d2a1182688
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains embedded links that mimic a 'free generator' for the game Coin Master, aiming to trick users into clicking. These links redirect to a known malicious infrastructure. While no scripts were directly extracted, the PDF structure and embedded URLs strongly suggest a social engineering lure designed to lead users to a malicious site, likely for further exploitation or malware delivery.

Machine Learning

  • Nyx PDF Classifier clean score 0.0718

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-free-spins-and-coins-daily-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

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

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4A 24624 bytes
SHA-256: 9019bcc6666d6c0bab9d75a4ed0caa3b257a90a918b9904be2a5847343f8cf8f
font_01_sfnt_off000066cf.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x66CF 18480 bytes
SHA-256: e9052e0f9c593188345ba389179451ef12c6c6a401d56a628cce0964dfd3917c

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