Malicious PDF — malware analysis report

Static analysis result for SHA-256 c5add54031e69266…

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 11:07:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-31
MD5: c6804f59d95041919d298ea1e5b2d8c6 SHA-1: 1652f7ce6812dc4aab81478e9a809606ea34ec09 SHA-256: c5add54031e69266d260e0f7c7f7605b523190e6f3df3f0c860b72e413f6099d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains multiple links to external websites, including a primary redirector at http://netcdn.co/app/431946152/how-do-you-hack-to-hack-on-robux-game-hack. The document body and heuristics indicate a lure for game hacks or generators, suggesting the intent is to trick users into downloading potentially malicious content. The presence of numerous related URLs reinforces this phishing and redirection tactic.

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/how-do-you-hack-to-hack-on-robux-game-hack In PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-hack-apk-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hiw-to-get-free-robux-on-your-phone_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-free-avatars-best_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-hack-app-android-download_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/oginject-co_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-dragon-adventures-crystal-cheat_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-free-cards-link_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-to-hack-roblox-no-virus_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-adopt-me-free-pets_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/how-do-you-hack-on-roblox-assassin_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-roblox-code-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-robux-generator-without-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/coin-master-map_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/roblox-free-admin-exploit_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/hack-to-find-people-ingame-in-roblox-cheat_GM431946152.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/free-coins-and-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://digilibfisip.unla.ac.id/repository/robux-hack-inspect-2021_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_off0000302a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x302A 22260 bytes
SHA-256: 543ffed98ced396c364b75ccac852544eb84fd8128f79759ba138f7d3d04b36e
font_01_sfnt_off00006170.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6170 19216 bytes
SHA-256: 8b47cb48d6e287a01a02aca1a8123aafc0f31e77f57f9490e5f8d836b41bb114

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