Malicious PDF — malware analysis report

Static analysis result for SHA-256 8165a35afb102d98…

MALICIOUS

PDF

42.5 KB Created: 2021-05-14 07:37:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9d02241c5c1095717063a6fb2b090f20 SHA-1: 3c5cf28b3ddb974e85895f23b5dc7a84bc567425 SHA-256: 8165a35afb102d985d2bc2a914e02cde05027e8e3aaa35f05ac25f97a4682988
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to known malicious redirectors, disguised as "free generator" or "game hack" lures. The primary malicious URL identified is https://netcdn.xyz/app/431946152/free-robux-codes-no-verification-2021-game-hack. The document body and embedded links suggest a social engineering tactic to drive users to potentially malicious websites. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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/free-robux-codes-no-verification-2021-game-hack In PDF document text
    • http://shiny-nn.ru/images/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/collect-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-roblox-scripts_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/aristois-minecraft-hack_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/https-oprewards-com-roblox_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-spin-and-trading-group_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/minecraft-wurst-client_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-card-collection-in-coin-master_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-get-free-spins-and-coins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-robux-kid-friendly-no-human-verification_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/actual-free-robux_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/hacks-and-cheats-for-coin-master_GM406889139.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
font_00_sfnt_off000048b2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x48B2 24388 bytes
SHA-256: ca8921c74ff906addeb154110a17f399bfed57c87e8dc2fb1cbc6b58c9029016
font_01_sfnt_off000080aa.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x80AA 19176 bytes
SHA-256: db1e34f64d78c47646929d75ef8e7d82dfccacc985d29653851fea35b3c0bf96

Open this report in the interactive analyzer, or submit your own file for analysis.