Malicious PDF — malware analysis report

Static analysis result for SHA-256 7cb72d529a7e18ad…

MALICIOUS

PDF

36.4 KB Created: 2021-05-19 02:30:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 2f13bdb02b7c5c51e20250c195fd7956 SHA-1: 77b2a38c8e2e21da8f7cd7be76dffe306e51f1b8 SHA-256: 7cb72d529a7e18adc7c739125260cab80ecd132c90b71c7a88a546134e260da1
130 Risk Score

Malware Insights

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

The PDF document contains a lure for a 'free generator / game hack' which includes a prominent call-to-action button. This button links to a known malicious redirector infrastructure, indicating an attempt to trick the user into visiting a harmful site. The document's content and heuristics strongly suggest a phishing or scamming attempt.

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-coins-and-spins-link-for-coin-master-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 2

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_off00003409.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3409 24760 bytes
SHA-256: b560cf1aa0be29711eb967e2e786e32c9a86e8a93f4f67bf274a41e0efcc8c66
font_01_sfnt_off00006cf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6CF6 18228 bytes
SHA-256: fae37dc17ceb07b546b2f3d52ac1615337fed2095fc086aa036c35b62a4bdec6

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