Malicious PDF — malware analysis report

Static analysis result for SHA-256 09e8a74f2b3dd934…

MALICIOUS

PDF

33.2 KB Created: 2021-06-27 16:15:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 26e402a1007d213ba8711ff5dcb59e84 SHA-1: 024926c6318b897a5234e54a3bbc9504d6783fc1 SHA-256: 09e8a74f2b3dd934a9166730d270568ae65cbf1269b30afd3adc3bf8edd9269c
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains embedded links that redirect to malicious infrastructure, specifically promoting 'game hacks' and 'generators' for popular games. The ML classifier also flagged this PDF as malicious. The primary lure appears to be a fake generator for in-game currency, designed to trick users into visiting potentially harmful websites.

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/auto-injector-roblox-hack-game-hack In PDF document text
    • http://lib.stie-aub.ac.id/repository/this-game-gives-you-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-accounts-roblox-jailbreak-money_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-spins-for-coin-master-on-1-19-19_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-hack-roblox-accounts-2021-easy_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-can-i-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/www-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/roblox-hack-tool-2021-download_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/hack-roblox-system48_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/all-free-roblox-clothes_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/earn-free-robux-by-downloading-apps-and-completing-offers_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/containment-breach-hack-script-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-just-by-downloading-apps_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/2021-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-robux-2021-not-patched_GM431946152.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.stie-aub.ac.id/repository/coin-master-free-coins-link-2021_GM406889139.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_off00002adb.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2ADB 22384 bytes
SHA-256: 9eaac3dafc5704d5bf46377cf25cb63f98a314b167f64134d9254b605ab14acc
font_01_sfnt_off00005c9b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5C9B 19088 bytes
SHA-256: ee2b1a747d2f7a0dd28c179496f32ad9ba1a9748f1ee0bc0120171434b5633cf

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