Malicious PDF — malware analysis report

Static analysis result for SHA-256 5e8595bd4b359a88…

MALICIOUS

PDF

34.8 KB Created: 2021-05-11 15:32:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: d3e8e872f579fa768430c311bdfcdf0a SHA-1: 09cf101cd4e249b0c1c8f7b4a5cf5a0341b6d453 SHA-256: 5e8595bd4b359a8854da0c6901117e43e1c9925f5abd72dc9c1059232fc53e52
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to a malicious URL, disguised as a 'free generator' or 'game hack'. The document body explicitly mentions 'Free Spins For Coin Master App' and 'CLICK HERE TO ACCESS COIN MASTER GENERATOR', indicating a social engineering lure to trick users into clicking the malicious link. The presence of PDF-specific heuristics related to malicious redirects and game hack lures strongly supports this attack pattern.

Machine Learning

  • Nyx PDF Classifier clean score 0.0306

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-spins-for-coin-master-app-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
stream_003_off00003182.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3182 23756 bytes
SHA-256: 8e7046bcc77b90bd26dd9ab5c1cb367e8b8b6317149d4d86a64def05a0c3fd18
font_01_sfnt_off000067b1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x67B1 17884 bytes
SHA-256: c0e07e045f0496ba68af439e810d5bb13e23b0d850ef9426c095223eaa712aa7

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