Malicious PDF — malware analysis report

Static analysis result for SHA-256 94005640e70198d0…

MALICIOUS

PDF

34.7 KB Created: 2021-06-21 18:19:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 81b2ea0a06daeba92e976ab083dfb38a SHA-1: b3111f0850c83aadb6e999eb560b7c5a4c2fa215 SHA-256: 94005640e70198d08a477f1f5aa7e7c8993c55bd1cc9a22b625a154ceb589c30
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/how-to-hack-roblox-on-mobile-game-hack PDF link annotation
    • https://limebug.com/media/storage/editor/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-an-account-on-roblox-easdy-and-fasting_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-hack-point-for-robux-site-for-unlimited-points_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-apocalypse-rising-hack_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/coin-master-ios-gods-hack_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-minecraft-skins-girl_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-hack-download_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-download-pc-free_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-roblox-girl-hair-not-a-model_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/how-to-get-free-money-on-roblox-cheat_GM431946152.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/minecraft-pocket-edition-free-apk_GM479516143.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/pokemon-go-free-money_GM1094591345.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/roblox-how-to-get-the-circuit-breaker-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/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
    • https://limebug.com/media/storage/editor/files/free-robux-kid-friendly-no-human-verification_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_off00002fe9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE9 22564 bytes
SHA-256: 8d49fa4224b51f337e5a3a6923109bba95069275c5d414f3483f282798201c43
font_01_sfnt_off00006231.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6231 19136 bytes
SHA-256: c6cfa40e1d917af866a87a81e144bf0d2408366b6fc953e8a0176cb384fbd87c

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