Malicious PDF — malware analysis report

Static analysis result for SHA-256 f9b6e1803b27ede9…

MALICIOUS

PDF

33.9 KB Created: 2021-06-28 11:26:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 47b30eb1bf17aa301ff0aa6d08bc9e92 SHA-1: b466e6ba8e39167fcef6c69094b7bb06a1c807f9 SHA-256: f9b6e1803b27ede9c5045142229b94ac0e6c40594893d0ff8bd99c40e842b1a3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure of game hacks and free currency to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which in turn hosts other malicious PDF files. The document body contains numerous URLs pointing to similar scam-like content, reinforcing the malicious intent.

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/free-tix-roblox-2021-game-hack In PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-gold-cards-link-2021_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/roblox-joined-hack-script_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/free-roblox-dominus-november-2021_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-daily-free-spins-link-app-download_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/free-robux-wheel_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-spins-haktuts_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-spin-today-2021_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/hackear-roblox-robux-gratis_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-spins-daily-fb-champion_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/minecraft-hack-client-18-9_GM479516143.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/free-robux-only-1-step_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-update-2021_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-free-spins-today-39_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/robux-games_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/how-to-play-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://alsworld.com/uploaded_files/userfiles/files/free-coin-spin-coin-master_GM406889139.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_off00002f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F62 21656 bytes
SHA-256: 54152ac9f4c5b26e421d5931f62d20d2be4a2f201ff9c2b63bc1a5cfda80736c
font_01_sfnt_off00005ed5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5ED5 19172 bytes
SHA-256: c647e8d45531a5ded7f4657c2076f65520947f7b7ae71bb7c6c30dd5d930a722

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