Malicious PDF — malware analysis report

Static analysis result for SHA-256 3c5107b02516c6bf…

MALICIOUS

PDF

35.2 KB Created: 2021-06-27 09:33:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 12966ca393bb5c2d1c7d3d012c856a66 SHA-1: a7712f706b27106acd33a9039b4bfb3bdfae4967 SHA-256: 3c5107b02516c6bffaffd4f91fc5228f5116e28a331e6eff1661a0675a1e8dc3
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains embedded links that redirect to a known malicious URL, masquerading as a game hack or generator. The ML classifier also flagged this sample with high confidence. The document body and heuristics indicate a lure for potentially unwanted content, likely leading to further malware or scams.

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/pastebin-robux-hack--game-hack In PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/rblx-gg-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-robux-esy_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/free-robux-codes-november-15th-2021_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-the-legend-of-the-bone-sword-rpg-hack-script_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-free-robux-no-verify_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/how-to-get-free-gamepasses-on-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-hack-download_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/followers-bot-free-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-adopt-and-raise-a-baby-hack_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/play-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/hack-in-booga-booga-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/minecraft-pe-hack-client_GM479516143.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/cheat-roblox-jailbreak-2021-money_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/robux-hack-generator_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-inspect-roblox_GM431946152.pdfIn PDF document text
    • https://elearning.min1nganjuk.sch.id/__statics/gudangsoal/files/how-to-create-your-own-scripts-hacks-in-roblox_GM431946152.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_off0000329a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x329A 22316 bytes
SHA-256: f0c167b70ca85a207cd758a2f858f8d9438b1902a9efd708deb84fd34e84c15f
font_01_sfnt_off0000644e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x644E 19100 bytes
SHA-256: ecacc06b927df6dc42f025abdf85ab594927db9136cc5e0e03f22ff019e4aa92

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