Malicious PDF — malware analysis report

Static analysis result for SHA-256 801afb37131ba702…

MALICIOUS

PDF

45.4 KB Created: 2021-05-13 20:15:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: b49feb9ac377e8cea910de9bbacab1da SHA-1: 2e7acc52bcea2817f7bd04eda3cd234bb83d229a SHA-256: 801afb37131ba702e69f8726aadc9a6def4204515e010daa9135e99b4e6da4be
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains numerous embedded URLs and a prominent external URI, all related to game cheats and hacks, suggesting a lure for users to download malicious content. The presence of a visual download button heuristic further supports this, indicating a phishing or social engineering attempt to trick users into clicking malicious links or downloading further payloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9507

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/como-generar-coin-master-free-spins-game-hack In PDF document text
    • https://www.nara.org.uk/uploads/files/files/free-roblox-hair-boy_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/roblox-data-breach_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/how-to-get-free-robux-easy-hack_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/rbx-sites_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/free-robux-obby-2021_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/coin-master-free-spins-today-daily-links_GM406889139.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/coin-master-free-daily-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/free-robux-ad_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/free-hair-roblox-boy_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/www-roblox-com-robux_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/minecraft-xray-hack_GM479516143.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/hack-master-coin_GM406889139.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/windows-10-minecraft-free-with-java_GM479516143.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/no-human-verification_GM431946152.pdfIn PDF document text
    • https://www.nara.org.uk/uploads/files/files/best-free-roblox-executor_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00004ac0.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x4AC0 25480 bytes
SHA-256: 6ef3ed5387c8913ca4caf2f7316d2c3958776f8fc4896bf19b90375eb266bb6b
font_01_sfnt_off00008459.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8459 3400 bytes
SHA-256: 4b3e0f36ad1e0c7e3ea5c178fd2b4f097d1e01575fc6a4101a8b520db34dfe07
font_02_sfnt_off00008f82.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F82 18148 bytes
SHA-256: e996c84c04af77a25dc17a749cf1e0dcd354e3ea4fa8f611880f16c604898bf5

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