Malicious PDF — malware analysis report

Static analysis result for SHA-256 4939243717e06045…

MALICIOUS

PDF

36.0 KB Created: 2021-05-13 16:31:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: bbe44e89e1bd1427e8d88354b0d1bb08 SHA-1: b191b7f4bd7b08e32a2fc32399e706b4bdba1b7c SHA-256: 4939243717e060454155cdbe6ca774696e8d5af0b10e5704d5438625f6e81bed
130 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to known malicious infrastructure, specifically a lure for game hacks. The document body text and embedded artifacts also contain references to this malicious URL. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a phishing or redirection attack.

Machine Learning

  • Nyx PDF Classifier clean score 0.0228

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-link-whatsapp-group-game-hack In PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 4

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_off00003308.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x3308 24836 bytes
SHA-256: 97a5527ef7cd7fb3e74c99ef7fa8ead35e018ce6eb0a65f51654b924a660a2a4
font_01_sfnt_off00006aab.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6AAB 18560 bytes
SHA-256: e17242fb732615db3af82b15b0eb94d62c2cda97be0a738ea92ad14a310048ef

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