Malicious PDF — malware analysis report

Static analysis result for SHA-256 566d4e287ef06ddb…

MALICIOUS

PDF

43.3 KB Created: 2021-05-11 01:30:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 8cc08129bb03f2acbf621255bffc4662 SHA-1: 2540c5c52063f26245b973446349690cedd0115d SHA-256: 566d4e287ef06ddb8745f9d46903e7b9e49fd74fd97c7445bdde820e9fbae7c8
160 Risk Score

Malware Insights

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

The PDF document contains multiple links that redirect to malicious infrastructure, specifically promoting 'free generator / game hack' lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/robux-gift-card-free-game-hack. The presence of these links and the ML classification strongly indicate a phishing or scam attempt designed to lead users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9979

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/431946152/robux-gift-card-free-game-hack In PDF document text
    • http://ofertaromania.net/images/how-to-win-free-robux_GM431946152.pdfIn PDF document text
    • http://ofertaromania.net/images/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
    • http://ofertaromania.net/images/free-robux-discord-servers_GM431946152.pdfIn PDF document text
    • http://ofertaromania.net/images/coin-master-hack-1021_GM406889139.pdfIn PDF document text
    • http://ofertaromania.net/images/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://ofertaromania.net/images/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://ofertaromania.net/images/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
    • http://ofertaromania.net/images/300-daily-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://ofertaromania.net/images/freespinandcoin_GM406889139.pdfIn PDF document text
    • http://ofertaromania.net/images/boku-no-roblox-hack_GM431946152.pdfIn PDF document text
    • http://ofertaromania.net/images/free-minecraft-windows-10-account_GM479516143.pdfIn PDF document text
    • http://ofertaromania.net/images/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
    • http://ofertaromania.net/images/robux-in_GM431946152.pdfIn PDF document text
    • http://ofertaromania.net/images/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
    • http://ofertaromania.net/images/coin-master-hack-spins-game-download_GM406889139.pdfIn PDF document text
    • http://ofertaromania.net/images/rbx-free-robux_GM431946152.pdfIn 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
stream_003_off00004c8e.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C8E 24820 bytes
SHA-256: 7d3666ab9e9f5f2bd9d08809a7dcde850c06eed504805cba7892ae89b4a61910
font_01_sfnt_off000085ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x85ED 18640 bytes
SHA-256: dc19c2dc7c571358abc7904f3409549de68542ff7a2dde77b507fd070c6276df

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