Malicious PDF — malware analysis report

Static analysis result for SHA-256 83b14763e08ceed2…

MALICIOUS

PDF

34.9 KB Created: 2021-06-19 07:01:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18
MD5: 4af9ba273924b27b5ed66223f98824b8 SHA-1: aa38f9be3607a04689a5a3a6569e23f5fd620f33 SHA-256: 83b14763e08ceed25ab104265337ab4743d114d3021ce93c430e8af88413cf58
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/cute-outfits-for-free-robux-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/robux-gift-codes-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/get-free-spins-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/roblox-g_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-mod-version-free-download-34-4_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/shiny-teeth-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/2021-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spins-coin-master-legit_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/legit-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spin-link-in-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/minecraft-java-account-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/unlock-my-games-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hacks-tool-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-hack-and-get-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-paintball-level-hack-cheat-engine_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/www-roblox-cheats-com_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-are-people-hacking-in-roblox_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_off00003011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3011 22856 bytes
SHA-256: ecb7506805dcd19efdd7ec20f9c6695f0c0b1eb0dc4b8a8d961a54d6aeebb9ce
font_01_sfnt_off000063a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63A9 18940 bytes
SHA-256: ea2fbdc6ac64c2b06cce64039b13ff6550bfba8f080437d005181d423dc4fa08

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