Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae8783ca51b9e744…

MALICIOUS

PDF

34.3 KB Created: 2021-06-26 17:15:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 3f4d10969020f3a4769a2a881d703361 SHA-1: adf138dd73f5bf63aa2d5eb76f1c97dda00797bf SHA-256: ae8783ca51b9e7445c034b81a417ec82cff511289b51109d2b5781ff34496a11
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that lead to known malicious redirectors and lures for game hacks and cheats. The document body and heuristics indicate a clear intent to trick users into clicking these links, likely leading to further malicious content or downloads. No scripts were extracted, but the presence of malicious redirectors and the lure-based content strongly suggest a phishing or social engineering attack.

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/counter-blox-roblox-offensive-wall-hack-game-hack In PDF document text
    • http://stpc.it/images/free-robux-codes-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/weird-roblox_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/how-to-get-free-roebucks-on-roblox_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/coin-master-hack-with-facebook-login_GM406889139.pdfIn PDF document text
    • http://stpc.it/images/can-you-get-robux-for-free_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/roblox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/free-neon-blue-tie-roblox-promo-code_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/roblox-cash-hack-script-pastebin-2021_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • http://stpc.it/images/rbx-gg-free-robux_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/how-do-you-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/how-to-gte-free-robux-2021-still-work_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/free-robux-place_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/coin-master-free-spins-and-coins-today-gift-reward_GM406889139.pdfIn PDF document text
    • http://stpc.it/images/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://stpc.it/images/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/free-robux-promotinal-codes_GM431946152.pdfIn PDF document text
    • http://stpc.it/images/coin-master-links-free-spins_GM406889139.pdfIn PDF document text
    • http://stpc.it/images/roblox-free-auto-clicker_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f8a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F8A 21988 bytes
SHA-256: 9dfe953b3e8ac480a328158766ae38152b1bfcfd7bd9080b8e2effcdfe33c97b
font_01_sfnt_off00005ffc.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FFC 19332 bytes
SHA-256: f59ab2619686d4cf181c75b61d178681894d064fb2acb41c306450afbb586857

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