Malicious PDF — malware analysis report

Static analysis result for SHA-256 bb6afe518fff9957…

MALICIOUS

PDF

33.0 KB Created: 2021-06-30 07:46:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 9dbd0c02b19e142d94143bd1f927a2e4 SHA-1: a9efb8f8ba9266deae5e0e3e886d18576191b3fc SHA-256: bb6afe518fff99573d739bdbb483fa8c0744af4a2d1b4d999787f626589ed8e6
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links and text that lure the user into clicking on a URL promising game hacks or generators. The primary link, http://netcdn.co/app/431946152/roblox-visual-cheats-script-game-hack, is flagged as a known malicious redirector. This suggests the document is part of a phishing or scam campaign designed to lead users to potentially harmful websites. No scripts were extracted, but the embedded URLs and the nature of the lure are strong indicators of malicious intent.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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/roblox-visual-cheats-script-game-hack In PDF document text
    • https://opac.umrah.ac.id/repository/roblox-code-free-robux_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-robux-hack-no-survey-no-password_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-spins-generator-no-verification_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/commands-for-free-admin-for-roblox-list_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-robux-hack-2021-easy_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/apocalypse-rising-roblox-cheats_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/break-free-by-ariana-grande-roblox-id_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/robuxhub-net_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-hack-exploit_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/roblox-mm2-free-knife-codes_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/photostar-hack-client-inject-error-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-roblox-games-for-free_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-adopt-me-promo-codes-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-cerberus-roblox_GM431946152.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-free-online_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/minecraft-ps4-free_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • https://opac.umrah.ac.id/repository/how-to-get-free-clothes-on-roblox-2021_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_off00002a61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2A61 22212 bytes
SHA-256: 63d6ecd3e51e858a9a2b6dab9bdc4df404fafe32a5ee1c2d5d151e1423abc3c4
font_01_sfnt_off00005b6e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6E 19324 bytes
SHA-256: ad42b12927da74c6fb0b0f9597e9f5d3bdef31c54caf90c23eb65c2b192215e3

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