Malicious PDF — malware analysis report

Static analysis result for SHA-256 5246708418548f95…

MALICIOUS

PDF

32.8 KB Created: 2021-06-27 04:43:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: bceb81ab9c842310a7bc9744842d487e SHA-1: b9128bb3195f3f492ec707e71a066f79b69ea0a4 SHA-256: 5246708418548f957f2b7e39063cfefc5dac1ef7f288b452faa41a85465b1706
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-i-robux-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/free-coin-master-spins-blog_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-24-7-minecraft-server_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-many-levels-in-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-do-i-hack-steam-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/master-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-114-download_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-gift-card-codes-2021-may_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-free-spins-1-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-name-tag-hacks_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/gain-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/tiktok-free-play_GM835599320.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/easy-robux-hack_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-jailbreak-best-teleport-hack_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-program_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/script-to-hack-generator-of-robux_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-hack-coins_GM406889139.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_off00002c61.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C61 21588 bytes
SHA-256: f3aa4b94225ac963588b5272bb53b27e2ef4784e5170d3b975af2a9c32fe51d0
font_01_sfnt_off00005bf6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5BF6 18716 bytes
SHA-256: e9a0301f22590344a97046afff5d171b952f53adb3d91c90ef621938770a4c9e

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