Malicious PDF — malware analysis report

Static analysis result for SHA-256 798fcad9c3461ce7…

MALICIOUS

PDF

42.6 KB Created: 2021-05-14 02:45:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: c8c454c50ce3d98d3c80f552a3b8e6ff SHA-1: 8142122a8353f4f38f7cd3bfbed8c889f2b463a9 SHA-256: 798fcad9c3461ce725e6640d4a35fbe4136f0da12996f219455c97edf17f7561
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and free currency, such as 'coin-master-hack-no-human-verification-game-hack'. These links are flagged as malicious redirectors, indicating a phishing or scam attempt. The presence of a visual download button lure further supports the malicious intent of directing users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9971

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.xyz/app/406889139/coin-master-hack-no-human-verification-game-hack In PDF document text
    • https://kunstmalen.ch/images/free-spin-links-coin-master-october-30-2021_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/free-robux-websites-2021_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • https://kunstmalen.ch/images/coin-master-hack-without-root_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/roblox-hacks-com_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/roblox-adopt-me-hack_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://kunstmalen.ch/images/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/update-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/free-roblox-website_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
    • https://kunstmalen.ch/images/minecraft-bedrock-free-download-pc_GM479516143.pdfIn PDF document text
    • https://kunstmalen.ch/images/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/how-to-get-more-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://kunstmalen.ch/images/coin-master-hack-app-2021_GM406889139.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
stream_003_off00004b4f.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4B4F 25344 bytes
SHA-256: 5ac7a1e2d1931d36b8400abcada7bda76c100d56c771f4a8b13ac813c1afe873
font_01_sfnt_off00008435.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8435 18248 bytes
SHA-256: b53d611e96a32094425b068729023046bb1db9f19d10500fe1599e8fd30759af

Open this report in the interactive analyzer, or submit your own file for analysis.