Malicious PDF — malware analysis report

Static analysis result for SHA-256 cc805ac96da42a79…

MALICIOUS

PDF

34.4 KB Created: 2021-06-27 21:06:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 43849b299fb82716707cf1d2bffb95c2 SHA-1: 65ad47144d9c5a8f481e8401e511378dc07b756f SHA-256: cc805ac96da42a79ec2c03bf0ec31d3a6acf00e7e907f5db9e1cdc0047b3f6bd
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains lures for free Robux and game hacks, which is a common social engineering tactic to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, indicating a phishing or malware distribution attempt. No scripts were extracted, but the document's content and embedded URLs strongly suggest a phishing attack aiming to deliver a payload or redirect users to a malicious site.

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/roblox-robux-hack-cheats-generator-free-robux-and-tix-game-hack In PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-roblox-clothes-website_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/will-minecraft-dungeons-be-free_GM479516143.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-hack-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-hack-otros-jugadores_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/cheat-engine-closes-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-sell-a-shirt-for-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-hack-new-working_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/como-hackear-roblox-para-tener-robux-2021-facil_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hack-money-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-get-free-robux-2021-easy_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/boku-no-roblox-money-hack_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-do-you-get-free-robux-on-your-tablet_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-robux-easy_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/hacking-on-alt-account-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-and-cheat-engine_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/roblox-juwelen-hack-mad-paintball2_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/how-to-hack-any-account-roblox-2021_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/free-sunglasses-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.pustaka.unand.ac.id/repository/download-dimond-roblox-hacks_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_off00002ec5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EC5 22172 bytes
SHA-256: 1494e1efe5757405f6828f75dd2824b70ee5c248c546a0796edf964c8aab3190
font_01_sfnt_off0000600f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x600F 19524 bytes
SHA-256: 8a97c74e2da7a344e1488edaa1593c329addeb647e3506615ca2572ec86d85b6

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