Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e7e9306cfa84a10…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 04:41:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24
MD5: 4c5904f9a96c4c0ae9312753abf7f6f6 SHA-1: ad8a3b2f74740b9e3fee889c222167ba84e04882 SHA-256: 6e7e9306cfa84a10c368af77dec610554f5f2422fa902b451be51b080764a363
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/479516143/how-to-get-minecraft-for-free-on-your-phone-game-hack PDF link annotation
    • http://perpus.masda.ac.id/repository/is-roblox-free-on-ps4_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-free-robux-hack-no-survey_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/coin-master-spin-free_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/free-roblox-royale-high-diamonds_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/aimbot-hack-roblox-assassin_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-cheat-new_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/gamefly-free-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-gift-robux-on-mobile_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/get-free-robux-inspect_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/how-to-hack-ronlox-infinity-robux_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-guest-body-free_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-no-download-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-free-spins-link-blogspot-2021_GM406889139.pdfIn PDF document text
    • http://perpus.masda.ac.id/repository/roblox-robux-gratis-hack_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/roblox-hack-tool_GM431946152.pdfIn PDF document text
    • http://perpus.masda.ac.id//repository/coin-master-fan-page-free-spins_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_off000033de.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x33DE 22292 bytes
SHA-256: 76f229698f73f2b3f018d8d38af9aca914132ba0f8094ebef32cc707d6eab30d
font_01_sfnt_off000064c3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64C3 18784 bytes
SHA-256: ab0cf905dc5988e311e4929c945d58dbde5e393d70311552a9ff538161641e37

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