Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7c822ecca6f886c…

MALICIOUS

PDF

36.0 KB Created: 2021-06-19 18:24:36 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: 11ac2588f2345af9164dee97db39b448 SHA-1: c4c882151ca95db4ebcad33615df037a3054cc45 SHA-256: e7c822ecca6f886ce3293ca90dab13d607b6081dac08b1d48950e7b2facdf446
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links to external websites, including a known malicious redirector at http://netcdn.co/app/431946152/awesome-free-roblox-outfits-game-hack. The document body and heuristics indicate a lure for game hacks or free currency, suggesting a phishing or scam attempt. No scripts were extracted, but the presence of embedded URLs and the nature of the lure point towards a social engineering attack.

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/awesome-free-roblox-outfits-game-hack In PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-hack-menu-download_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-free-spins-that-really_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-upgrade-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-free-spin-and-coin-links_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/legend-of-dragons-rpg-free-admin-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-hack-tool-robux-and-tickets-hack_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-free-download-windows-10_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/levvvel-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-snow-shoveling-simulator-how-to-get-free-money_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coinmaster-com_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/roblox-group-give-free-robux_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-can-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-robux-hack-legit-working_GM431946152.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/coin-master-hacks-for-cards_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/how-to-get-free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • https://digilib.widyagamahusada.ac.id/repository/free-roblox-bc-accounts-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_off00003428.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3428 22492 bytes
SHA-256: a3d906959251d5aca511e502dd902530188e248c301da2acbc2c14f98b6bb89e
font_01_sfnt_off00006687.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6687 19436 bytes
SHA-256: 16f73866cb7c1d23eb4af1e80080d4c15c89e7ecf94e9c2278567ffe8f6bf21f

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