Malicious PDF — malware analysis report

Static analysis result for SHA-256 081f2a60e0fb600f…

MALICIOUS

PDF

44.5 KB Created: 2021-05-17 02:33:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: c71adfc17ceddce34353ebbfd2d9bdbb SHA-1: 6bd0afa582b9d5f1ddc2db6b0f65067455a8a115 SHA-256: 081f2a60e0fb600fe4221bbc36f1e8f5c88267d583d32f37a53cc5629b3c36f8
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 https://netcdn.xyz/app/431946152/watch-ads-for-robux-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/plug-toolbox-for-minecraft-free-ios_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/master-coin-hack-game_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-sued_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coins-master-hacks_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-spin-link-for-coin-master-game_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coinmaster-spin-ml_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/mcpe_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-link-2021_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-village-cost_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/where-can-i-get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/where-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-app-ios_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-pe-free-apk_GM479516143.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
stream_003_off00004cc2.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4CC2 26044 bytes
SHA-256: 8fb84f9f265b2934376746f1ee2ceaa581fab4b81c93dee563b904940741c6e6
font_01_sfnt_off00008a12.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A12 18884 bytes
SHA-256: b326a3d2522df63c9b2d79b13b63d757e2bef45666281f059e1577b6e2c17aa3

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