Malicious PDF — malware analysis report

Static analysis result for SHA-256 8aebb06c778d15f2…

MALICIOUS

PDF

42.2 KB Created: 2021-05-04 08:08:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 2af34820ee80c815b552fe97bec85454 SHA-1: 927e443d980410fbfc3e590fd8362a7bf58170bb SHA-256: 8aebb06c778d15f2edb5112d2bdf7336a3d2ca9a99457c170c428e1b146e4dd8
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 0.9941

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.xyz/app/431946152/hack-roblox-with-kali-linux-game-hack PDF link annotation
    • https://lib-stie.yai.ac.id/repository/free-draw-2-roblox-drawing-tablet.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/descargar-roblox-hackeado-con-robux-infinitos-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-free-robux-at-computer.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-planet.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/roblox-alt-accounts-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-ban-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/hack-roblox-for-robux-for-free.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-robux-legit-2021.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/free-murder-mystery-items-roblox.pdfIn PDF document text
    • https://lib-stie.yai.ac.id/repository/how-to-get-roblox-free-aventures.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_off00003fb7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3FB7 29124 bytes
SHA-256: e28234464a82eb707af0edb7dc99051c4c1e2e48e43d113c2600aee0ba95452e
font_01_sfnt_off00008175.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8175 18908 bytes
SHA-256: 3a9f011730f6365023a5b94f8880cfee13a916471622723572e37db7b898b4b5

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