Malicious PDF — malware analysis report

Static analysis result for SHA-256 9c8d30ffdf8effeb…

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 11:15:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 191ec21c27236bee11201bf9a40a78b2 SHA-1: 12d6c6b64e3532afb92243f23386d54a7b181164 SHA-256: 9c8d30ffdf8effeb58e8f76e1dc9df98c82826641faaf00c099845f27e3fae4f
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links, including one pointing to a known malicious redirector infrastructure. The document body and heuristics suggest a lure for game hacks or generators, likely intended to lead users to download malware or engage in phishing. No scripts were extracted, but the presence of embedded URLs and the malicious redirector strongly indicate a malicious intent to redirect users to potentially harmful content.

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.tw/app/479516143/minecraft-bedrock-edition-pc-download-free-game-hack In PDF document text
    • https://i-tech.ac.id/perpus/repository/download-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/get-free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-model-death-star-map-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/can-you-play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/cheats-to-get-more-money-in-adoupt-me-in-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/goku-shirt-roblox-free_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/redeem-roblox-cards-free-codes-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/titan-simulator-roblox-hack_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/roblox-hack-client-ios_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/how-to-get-a-hacked-roblox-account-back-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/shadow-raid-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/como-instalar-hackear-para-roblox-robux-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/games-that-give-u-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/pastebin-roblox-promocode-hack-2021_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/hacking-roblox-through-cookies_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/joedaddy-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/do-you-want-free-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-roblox-promo-codes_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/hack-robux_GM431946152.pdfIn PDF document text
    • https://i-tech.ac.id/perpus/repository/free-robux-download-ios_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
font_00_sfnt_off00003521.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3521 21672 bytes
SHA-256: 8ce11e8233afd08c0a1c1856db307d7dd7c89410bb87fe89d6fc990184107053
font_01_sfnt_off0000643c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x643C 19120 bytes
SHA-256: 18cb023a17afcf6f32a9a51320420adca51e0723189dec2cb2e77558246ce529

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