Malicious PDF — malware analysis report

Static analysis result for SHA-256 2748335083516094…

MALICIOUS

PDF

33.7 KB Created: 2021-06-25 21:40:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c4f8bfd974a7905bfc9f6654a9e4783c SHA-1: 20971cc81562a846a6e9d442683a66263bfe92c6 SHA-256: 2748335083516094d97ce6b1260a8558b14cb802a014caf1b5c9aa7463139292
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 0.9980

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 http://netcdn.co/app/431946152/free-roblox-gift-card-no-survey-game-hack PDF link annotation
    • http://perpus.ar-rum.ac.id/repository/roblox-sites-that-give-you-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-hack-tix-and-robux-generator-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/free-roblox-griups_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/websites-for-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/best-free-catalog-items-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-spins-cheat-deutsch_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/cheat-roblox-aimbot-arsenal_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-gift-card-for-free_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-promo-codes-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-strucid-hacks_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/coin-master-free-online-game_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/roblox-games-give-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id/repository/get-free-money-on-adopt-ke-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/how-to-get-free-robux-for-kids_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-free-play_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/roblox-free-robux-com_GM431946152.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/free-spins-and-coins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/oginject-co_GM406889139.pdfIn PDF document text
    • http://perpus.ar-rum.ac.id//repository/robux-get-com_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cf4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF4 21932 bytes
SHA-256: 8f7f3ff6484957ed9df0e39f4160c5ea6e96b724f6916856fef8a8a4206efac5
font_01_sfnt_off00005d3e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D3E 19484 bytes
SHA-256: b2da6e04d02de4997d94ec4b5fcdb355c75a2e6943ca19449b87da7607bff6d2

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