Malicious PDF — malware analysis report

Static analysis result for SHA-256 140fbea9338d6de7…

MALICIOUS

PDF

33.2 KB Created: 2021-07-06 09:56:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 74a6fccd03b8cc2e34a446666a637246 SHA-1: fe426df21628f9cffefdb14ee47726f37bad9808 SHA-256: 140fbea9338d6de70a538f9ca004cd829bbc46fe7c3832e92152d65bab87105f
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a lure related to free game hacks for popular titles like Minecraft and Roblox. It contains multiple embedded URLs, with the primary one being http://netcdn.tw/app/479516143/minecraft-app-store-free-game-hack, which is likely used to redirect users to a malicious download site. The ML classifier also flagged this PDF as malicious, supporting the conclusion that it is designed to trick users into downloading potentially harmful software.

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/479516143/minecraft-app-store-free-game-hack PDF link annotation
    • http://perpus.ftunismabekasi.ac.id/repository/synapse-roblox-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/hacks-de-boku-no-roblox-remastered_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-hack-com_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-cheat-engine-2021-download_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-400-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-hack-coin-master-without-root_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-roblox-builders-club-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-mm2-free-weapons-exploit_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/cheats-roblox-highschool_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/robux-hack-without-survey_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/coin-master-free-cards_GM406889139.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/free-roblox-no-verification_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/30-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/car-dealership-tycoon-roblox-hack_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/cool-free-hats-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
    • http://perpus.ftunismabekasi.ac.id/repository/roblox-promo-codes-2021-free_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_off00002fc1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC1 21724 bytes
SHA-256: 96e3e868517e942dc7ff96a7004e19dc2bdc3820b4356d63750684dff9923d45
font_01_sfnt_off00005f62.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F62 18176 bytes
SHA-256: bfbced2f7c13aee65ae14fbff7c4c0a44b45311e08e30e631f0d63d24c4172f5

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