Malicious PDF — malware analysis report

Static analysis result for SHA-256 12621f5e8ae421c7…

MALICIOUS

PDF

44.4 KB Created: 2021-06-07 03:34:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 108e58c17b15e4c431e3b60ee4f6ffff SHA-1: 505aceccd554690834a497ebb182ad9e645b49c2 SHA-256: 12621f5e8ae421c77fbec660d04997f1ef29812891fdbc3715a89d8bd3208b67
160 Risk Score

Malware Insights

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

This PDF document contains multiple links that redirect to malicious infrastructure, masquerading as a game hack generator. The embedded URLs and the document's structure strongly suggest a phishing or scam attempt designed to lead the user to a compromised site. No scripts were extracted, but the presence of malicious links and the lure indicate a high likelihood of a phishing attack.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.tw/app/431946152/noclip-hack-for-prison-life-roblox-game-hack In PDF document text
    • http://www.art-concept.gr/images/minecraft-windows-10-code-free_GM479516143.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-facebook-page_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/how-to-get-free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/hacks-for-minecraft-windows-10_GM479516143.pdfIn PDF document text
    • http://www.art-concept.gr/images/android-coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/earn-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/games-that-give-free-robux_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/coin-master-free-coins-and-spins-online-tool_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/minecraft-112-hacked-client_GM479516143.pdfIn PDF document text
    • http://www.art-concept.gr/images/2021-coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • https://art-concept.gr/images/robux-hack-generator-2021_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/minecraft-ore-finder-mod_GM479516143.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/master-free-spin_GM406889139.pdfIn PDF document text
    • http://www.art-concept.gr/images/easy-roblox-today_GM431946152.pdfIn PDF document text
    • http://www.art-concept.gr/images/roblox-hack-site_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_off00004fc4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4FC4 26192 bytes
SHA-256: f9ba8950dcfbb884bb727e69d516d69a5636c937eeb05b13d44e748ae3607995
font_01_sfnt_off00008957.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8957 18828 bytes
SHA-256: 2c3e83149cd987881961e30f18f76989e5fcdae53e7c66aa66757af588f86bfd

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