Malicious PDF — malware analysis report

Static analysis result for SHA-256 d03c2f8936253977…

MALICIOUS

PDF

41.7 KB Created: 2021-05-11 15:06:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 43b7dbff502762f0cdf9049d6c7ae9e3 SHA-1: e602c260e10eadd699d9413a434f0371dac7f1c0 SHA-256: d03c2f89362539772604f4af1473ab454e7acc41d83d8fba00b3dd935df3ba98
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 0.9971

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/406889139/daily-spin-coin-master-free-game-hack PDF link annotation
    • http://pustaka-smpn3tpi.com/repository/coin-master-how-to-get-free-pet-food_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/bux-life-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-spins-2021-app_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-sign-in-free_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-free-minecraft-skins_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-to-change-roblox-username-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/robux-for-offers_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-get-free-cards_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-hack-ios-12_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-to-hack-coin-master-ios_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/daily-spin-and-coin_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/minecraft-pe-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/minecraft-tools_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-to-hack-a-roblox-account-easy_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/robux-gratis_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
stream_003_off000047d4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x47D4 24636 bytes
SHA-256: 6119ec53941702f02d3ce797afa22eef2892e5a78599a2b4a6c138e1a5f7614f
font_01_sfnt_off00008099.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8099 18308 bytes
SHA-256: 01600d8872cce32acc5507852554046a99c22a483aa91b7650f376c0d680ad72

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