Malicious PDF — malware analysis report

Static analysis result for SHA-256 699a3cfdc5ab6b7a…

MALICIOUS

PDF

34.5 KB Created: 2021-06-17 21:45:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 236c6e3afced69714c4e9dfa34eb7ab0 SHA-1: 2875e4be440991dd7d5e759e456035100f1781cb SHA-256: 699a3cfdc5ab6b7a96ad8c8585c4f15a71aab1cff287a93b51c2e53f0362eeef
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to malicious infrastructure, specifically targeting users with lures related to game hacks and free items. The presence of a visual download button and the document body text further support the phishing and redirection attack pattern. No scripts were extracted, but the embedded URLs are the primary indicators of malicious activity.

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/how-to-get-free-clothes-on-roblox-easy-game-hack In PDF document text
    • http://shiny-nn.ru/images/coin-master-free-link-facebook_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/can-you-hack-robux_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-spin-and-coins-links-2021_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-roblox-adopt-me-accounts_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-get-free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-roblox-generator_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-rape-script-for-roblox_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/toolbox-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/free-robux-no-apps_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/minecraft-xbox-360-free-download-code_GM479516143.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-tiradas-gratis_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/lua-hack-roblox_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-hack-builderman-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/coin-master-hack-spins-ios_GM406889139.pdfIn PDF document text
    • http://shiny-nn.ru/images/roblox-zone-free-robux_GM431946152.pdfIn PDF document text
    • http://shiny-nn.ru/images/how-to-get-free-robux-hack_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_off00002fa0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA0 22500 bytes
SHA-256: 165fcf81c9055ac035487362f5c6ef4ec6655c4b82dc47bd089f3bbe426d42e0
font_01_sfnt_off000061ac.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x61AC 19076 bytes
SHA-256: 914c40014fd5c21659d0121f741a8ae861dc46f7ddc78708e4c588ea15515271

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