Malicious PDF — malware analysis report

Static analysis result for SHA-256 ec517fc8c8fc5e86…

MALICIOUS

PDF

34.6 KB Created: 2021-06-19 18:06:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 333bc0bfa3572a6945c766de9566ffaf SHA-1: bd5ae531ac9ed4906c35a70cf111bb02d5df2662 SHA-256: ec517fc8c8fc5e860d9d59420ab26fd017f0a4b3b322cbf5a7aebcadf595c803
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks to trick users into clicking malicious links. The primary link directs to a known malicious redirector infrastructure, which likely serves as a gateway to further malicious content or downloads. The ML classifier also strongly indicated maliciousness.

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-hack-no-survey-or-verification-game-hack In PDF document text
    • http://www.peterbarsony.com/userfiles/files/cute-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-get-free-spins-on-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-live_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-daily_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-exploit-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-do-you-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/rbxoffers-com-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-daily-gift-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/promo-codes-for-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/how-to-hack-something-into-your-roblox-inventory_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-real-roblox-accounts-list_GM431946152.pdfIn PDF document text
    • http://www.peterbarsony.com/userfiles/files/free-robux-sites-that-work_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_off00002ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF6 22064 bytes
SHA-256: fe9a34aac4dbbc4e7f7422c914c2864386c267ab1666bf2985f5fa031cdf7c26
font_01_sfnt_off00006101.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6101 19448 bytes
SHA-256: db89e6e2c38134a34daa5d51fbc9c5f78f4e2a53eb4bd845f8b01ee3df6d20ee

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