Malicious PDF — malware analysis report

Static analysis result for SHA-256 2ad48fc0797f35f9…

MALICIOUS

PDF

34.3 KB Created: 2021-07-06 01:10:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 7e0cda507ece25eeb307c67252309207 SHA-1: 2d7a1fcb7ee6adbc6d5af0c89692147a1b0b7fc7 SHA-256: 2ad48fc0797f35f9779dc187c5e8ad33189639404f76de336a17d50c7f73afc8
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.tw/app/406889139/coin-master-free-food-game-hack PDF link annotation
    • http://pustaka-smpn3tpi.com/repository/roblox-crashes-when-cheat-engine-is-open_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-exchange-40-free-spins_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-mod-version-free-download-v344_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/cool-free-roblox-outfits_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/raindrop-free-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-hack-free-robux-and-tix-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-phantom-forces-cheat-engine_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-minecraft-java-code_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/teach-me-to-hack_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/2021-robux-hack-inspect-element_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-spins-coin-master-october-13-2021_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-cards-no-survey_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-daily-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-hack-rpg-games-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-actual-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-robux-no-survey_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_off00002ff6.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FF6 23116 bytes
SHA-256: b30d775d5c8620101af73d58c5859d3f516d4fd04c815b10fdd54509ed0acb1c
font_01_sfnt_off000063c7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63C7 18172 bytes
SHA-256: da47515c3b4c9ce74a6a7925be58a2cec6625ddcee19f7c3d533689243930cbf

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