Malicious PDF — malware analysis report

Static analysis result for SHA-256 b995f16d93407bae…

MALICIOUS

PDF

36.8 KB Created: 2021-05-22 20:16:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0660df626d9fd37743f2a931dcfe627e SHA-1: d6f916d84291d4d900cffb56e7f8f98e472d98d3 SHA-256: b995f16d93407bae2b1279ff3ef1b4bc0a710b1f23f86a82d9dd47dced8ea682
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple embedded links that redirect to known malicious infrastructure, specifically advertising a 'free generator' for Minecraft. The document body also contains a prominent call-to-action button directing users to a similar malicious URL. These elements strongly suggest a phishing or scam attempt designed to lead users to potentially harmful websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9447

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/479516143/best-free-minecraft-servers-game-hack In PDF document text
    • https://www.hotel-forsthaus.com/images/coin-master-hack-app-2021-download_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/coin-master-free-coins-twitter_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/free-google-play-promo-codes-coin-master_GM406889139.pdfIn PDF document text
    • https://www.hotel-forsthaus.com/images/free-daily-spins-from-coin-master_GM406889139.pdfIn PDF document text
    • https://code.giftcards.comIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000379c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x379C 24624 bytes
SHA-256: 1c8bd34d95c2f58791a9f7336bc8830d927d52bfba6b10f49b006fdde61023fb
font_01_sfnt_off00006fb0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6FB0 17896 bytes
SHA-256: c529f757d6b4a4f9c7840ecb5b6035c813da3045ee3b560268268dab20db1aa9

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