Malicious PDF — malware analysis report

Static analysis result for SHA-256 d5dea3d3a1b52a16…

MALICIOUS

PDF

45.9 KB Created: 2021-06-04 03:44:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 979fdfe860a931f50bfea93a425e9699 SHA-1: fc37e1a8ffe25d9e1b1f1daf6dabf178f5e45950 SHA-256: d5dea3d3a1b52a16d50f23354a1cb9c56d0738f3bea0fba2336b2a77af47f153
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9864

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high 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.
  • 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
  • External URI info PDF_URI
    PDF contains an external URL action
  • 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 https://netcdn.online/app/431946152/roblox-generator-no-human-verification-game-hack PDF link annotation
    • https://pustaka.widyakartika.ac.id/repository/minecraft-hacked-client-18_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-robux-just-enter-username_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-roebucks-without-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-daily-free-spin-and-coin-link_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-minecraft-for-free-ios_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/hacks-for-minecraft-bedrock_GM479516143.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/how-do-you-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-facebook-free-spins_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/download-coin-master-apk-hacked_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-latest-version-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/free-roblox-accounts-generator_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hack-2021_GM406889139.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/give-me-robux_GM431946152.pdfIn PDF document text
    • https://pustaka.widyakartika.ac.id/repository/blox-supply-free-robux_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_off000052c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x52C3 26336 bytes
SHA-256: 1a95a00db96a4da2ea9151de9e8c3e4602a48da30bfd0d2475c0bf379aae0699
font_01_sfnt_off00008f41.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F41 18772 bytes
SHA-256: d79baf027547f44448cd8f3b6712cdcd19f331e765a1a7a1a1aa24219739a308

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