Malicious PDF — malware analysis report

Static analysis result for SHA-256 3012cb76cd360696…

MALICIOUS

PDF

34.0 KB Created: 2021-07-06 12:45:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 273072fe92a901b17a92a9a37eb2d965 SHA-1: 5eb0ac41de0b5df8199030eb88099f3cf003212a SHA-256: 3012cb76cd360696244d4a00352ac1c10419fcefe4f21ed6f6f8cbe2e93f543d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document employs a lure of free game hacks and cheats to entice users into clicking embedded links. The primary link, http://netcdn.tw/app/479516143/minecraft-bedrock-edition-download-pc-free-game-hack, redirects to a site likely hosting malicious content. The ML classifier strongly indicated maliciousness, and the PDF's structure and content align with social engineering tactics to trick users into downloading potentially harmful files.

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.tw/app/479516143/minecraft-bedrock-edition-download-pc-free-game-hack PDF link annotation
    • http://digilib.stimlog.ac.id/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/rise-of-nations-cheats-roblox_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-offers_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-free-black-pants_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/www-roblox-com-robux-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/how-to-get-free-obc-on-roblox-ios_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/pokemon-go-free-walk_GM1094591345.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-tiktok-views_GM835599320.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/robux-com-free_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-real-website_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-admin-games-on-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/roblox-skins-boy-free_GM431946152.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/how-to-hack-in-roblox-roubux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-minecraft-mods_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://digilib.stimlog.ac.id/repository/free-robux-real_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/roblox-army-robux_GM431946152.pdfIn PDF document text
    • https://digilib.stimlog.ac.id/repository/free-robux-gen_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_off00002ee5.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE5 22068 bytes
SHA-256: ec2c833b4b79a2aa22ba2819d27844350344fea8f0fa2a5271839b203bc2688f
font_01_sfnt_off00005fd8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FD8 19120 bytes
SHA-256: f0fe155c1e53163b1cade4296e0b54f6b6a61c47b1408d2b62092597c44fe41f

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