Malicious PDF — malware analysis report

Static analysis result for SHA-256 81e4dec0e25844a8…

MALICIOUS

PDF

16.0 KB Created: 2021-07-04 11:01:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-27
MD5: 68633e33bb4b6ffcaa151cfd55a34e79 SHA-1: fceea0457fff69d621ee63dbb2e18c23e40b0fd5 SHA-256: 81e4dec0e25844a8e8d26c6464e60c30ffc982d2d81a9e33e92279fea2acb5ef
152 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to a known malicious redirector, disguised as game hacks and generators for popular games like Roblox and Minecraft. The ML classifier also flagged this PDF as malicious. The primary attack pattern involves luring users to click these links, which likely leads to further malicious content or malware downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9935

Heuristics 3

  • 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.
  • 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.tw/app/431946152/roblox-free-robux-generator-game-hack In PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/free-robux-generator-november-2021-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/minecraft-pe-free-apk_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-free-robux-fast-and-easy_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/tears-hack-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-free-cards-link-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coinmaster-free-cards_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-free-spins-on-coin-master-blogspot_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/pasos-para-hackear-coins-master_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/coin-master-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-change-roblox-user-name-android-for-free_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/how-to-get-the-guest-boby-for-free-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/roblox-tycoons-free_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/get-free-robux-nowcom_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/52-000-000-robux-free_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/hpyerinjector-roblox-hack-injector_GM431946152.pdfIn PDF document text
    • https://pustaka.stie-pembangunan.ac.id/repository/robux-for-free-no-phone-apps_GM431946152.pdfIn PDF document text

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