Malicious PDF — malware analysis report

Static analysis result for SHA-256 b76933927a8f59be…

MALICIOUS

PDF

34.7 KB Created: 2021-06-25 13:32:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 42535762b7e7b8394724e2ae959eeca4 SHA-1: d5ed87bf2a75c8cc611bb6f08c97d54533e232eb SHA-256: b76933927a8f59bea81da6dd7aea754e50b40c1522acb07c473b7328f88a7be6
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-expoit-may-2021-game-hack PDF link annotation
    • http://digilib.unbari.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/pokemon-go-free-game_GM1094591345.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/rbx-com_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-how-to-get-free-robux-no-hacks-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-coin-master-game-apk_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/www-rubux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/coin-master-free-spins-link-2021-today_GM406889139.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-cheat_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-deathrun-hack-script-pastebin_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-script_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-robux-quiz_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/minecraft-free-install_GM479516143.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-into-roblox-account-may-2021_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/hack-a-game_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/websites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-gfx-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/roblox-characters-with-free-items_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/free-roblox-model_GM431946152.pdfIn PDF document text
    • http://digilib.unbari.ac.id/repository/xonnek-roblox-jailbreak-hacks_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 3

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_off00002f4f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F4F 22140 bytes
SHA-256: 8b3d9499b57a943f0e7a54bba211c4e3c9e821464c78c545b932675dea916dd6
font_01_sfnt_off00006045.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6045 19828 bytes
SHA-256: cc32d48f49837667400336fa54cffd6aa8418b811e70fd46121594d3787dc44e

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