Malicious PDF — malware analysis report

Static analysis result for SHA-256 2373f72de67ce270…

MALICIOUS

PDF

35.1 KB Created: 2021-07-05 15:26:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 5aceaa7c5af9ed5a5f91acbf372677d4 SHA-1: 1410d23e06946737e9b4ff59e2dd94bfee2737fd SHA-256: 2373f72de67ce270677b762c8a42c71e1b51d5ed5ea5d296b5b60c4324d09239
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/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack-game-hack PDF link annotation
    • http://pustaka-smpn3tpi.com/repository/roblox-hack-exe-iso-tar-rar-zip-apk-intitle-indexof_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/free-spin-coin-master-hacktoman_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/robux-cheats-2021_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/how-to-hack-someones-minecraft-account_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-pet-food-free_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-robux-rewards_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-pokemon-brick-bronze-free_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-more-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-hack-roblox-tix-with-cheat-engine-63_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-get-minecraft-for-free-on-ipad_GM479516143.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/gamesyourday-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/how-to-hack-roblox-android-step-by-step-anddoid_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-robux-hack-glitch_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/roblox-hacks-2021_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/cheat-engine-roblox-lumber-tycoon-2-table_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com/repository/nametag-fornite-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka-smpn3tpi.com//repository/coin-master-free-spins-link-today-twitter_GM406889139.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_off000030a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x30A9 23080 bytes
SHA-256: 16eee351f03281dce309139ead8a346dd89264739bc42f75afcdab22075da92d
font_01_sfnt_off0000649a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x649A 18908 bytes
SHA-256: 22eea22e93e3a2ab8e7a2e6bfe46b3c4bbbdffc0ed3854b3ba75aeac54633c45

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