Malicious PDF — malware analysis report

Static analysis result for SHA-256 77205df2f6e7be2c…

MALICIOUS

PDF

34.2 KB Created: 2021-07-21 07:51:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 0c7f885f2bd71b1fbfa5050e712907a7 SHA-1: 7ff12b5337d298cff2bfb43c2682c0618cc5ccb7 SHA-256: 77205df2f6e7be2cd7fc662bb41d5e8185a7d836ab5420a1e41dcd387c3c1a88
160 Risk Score

Malware Insights

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

This PDF document contains multiple links to known malicious redirectors and infrastructure, disguised as "game hacks" or "generators" for popular games. The document body and embedded links suggest a lure to trick users into visiting these sites, which likely host further malicious content or phishing pages. The ML classifier also strongly flagged this PDF as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9955

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/adopt-me-roblox-hacks-game-hack In PDF document text
    • http://keycitykennelclub.org/images/free-minecraft-account_GM479516143.pdfIn PDF document text
    • http://keycitykennelclub.org/images/free-robux-site_GM431946152.pdfIn PDF document text
    • http://keycitykennelclub.org/images/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://keycitykennelclub.org/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
    • http://keycitykennelclub.org/images/free-coin-master-spins_GM406889139.pdfIn PDF document text
    • http://keycitykennelclub.org/images/how-to-download-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • http://keycitykennelclub.org/images/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://keycitykennelclub.org/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
    • http://keycitykennelclub.org/images/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://keycitykennelclub.org/images/coin-master-free-soins_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_off00002e88.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E88 22660 bytes
SHA-256: 2a563ff3d7c6a35097e76250630df549962aa9d988042fd47ff162988b7917b8
font_01_sfnt_off00006148.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6148 19016 bytes
SHA-256: e9e14d7da4eba9f50971f14cd0883cc115a33df7154713f73a6d7f08e561c6fc

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