Malicious PDF — malware analysis report

Static analysis result for SHA-256 1918c85776f28468…

MALICIOUS

PDF

33.6 KB Created: 2021-07-10 00:43:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-22
MD5: 6c0497e1388e6692051289caa2bcfd5c SHA-1: cb1ab51c258c1d5d4e00d5c63b91d5e126c491b9 SHA-256: 1918c85776f284683a0ab44dc8d6ad2c48d972901f13947900927d2727d334d0
160 Risk Score

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/431946152/get-free-roblox-game-hack In PDF document text
    • http://olimpik.mk/imagescke/upload/files/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/get-free-robux-now_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-outfits-roblox_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/hack-roblox-genrator-no-survey2021_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/get-free-robux-by-doing-surveys_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-windows-10-hacks_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/boosted-gamer-roblox-hack_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/minecraft-hack-2021_GM479516143.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/mobil-net-roblox-hack_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/get-more-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-to-hack-roblox-plz-i-need-dat-money_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/coin-master-heaven-free-spins-today_GM406889139.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/r7-roblox-hack_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
    • http://olimpik.mk/imagescke/upload/files/nike-t-shirt-roblox-free_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_off00003037.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3037 21452 bytes
SHA-256: da5941682db1b900e5de917833e82c638bae633934d43e69acfe8662218987c9
font_01_sfnt_off00005f20.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F20 18752 bytes
SHA-256: 8f306cb72d35d07e81842eac0517dc69238a93bc49615aa8c83c44127ce61c23

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