Malicious PDF — malware analysis report

Static analysis result for SHA-256 50edaab29d012dd6…

MALICIOUS

PDF

33.5 KB Created: 2021-06-18 01:25:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 31934678550bb0596eeaddc4d66e166b SHA-1: 5521fa748f90277ba9db72164c60eca7fcbc2f7e SHA-256: 50edaab29d012dd691e2419b221123a5925478733576a2ebf95d2282733c7278
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple embedded links that lead to known malicious redirectors, specifically advertising game hacks and free currency. The primary lure URL is http://netcdn.co/app/431946152/trigon-roblox-hack-game-hack, which is associated with a 'free generator / game hack' scheme. The document body and heuristics indicate a social engineering tactic to trick users into visiting these malicious sites, likely as a precursor to further malware delivery or credential harvesting.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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 http://netcdn.co/app/431946152/trigon-roblox-hack-game-hack In PDF document text
    • http://elsenorcafe.com.co/images/coin-master-free_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/coin-master-free-spins-link-today-blogspot_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/roblox-2021-robux-free_GM431946152.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/how-to-get-free-cards-sets-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/send-me-500-2021-spins_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/get-minecraft-windows-10-free_GM479516143.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/coin-master-free-spins-link-today-2021_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/download-coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/nitro-fun-cheat-codes-roblox_GM431946152.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/how-to-get-free-robux-as-a-kid_GM431946152.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/free-coin-master-spins-links-2021_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/multiplayer-master-hack-coins_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/pubg-50-uc-free_GM1330123889.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/try-minecraft-free_GM479516143.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/coin-master-hack-iphone_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/coin-master-hack-reddit_GM406889139.pdfIn PDF document text
    • http://elsenorcafe.com.co/images/how-to-make-a-group-on-roblox-for-free_GM431946152.pdfIn 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_off00002d10.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D10 22516 bytes
SHA-256: 8fb4fa9ce2748b006e3be6412c86c6d6fcf7dbea12538bd4d6b9c9755438b2a5
font_01_sfnt_off00005f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F3A 18592 bytes
SHA-256: 3871b61bd42f97f91c7a09496d7fd4e9c295176d619a4debf42a372579e885d9

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