Malicious PDF — malware analysis report

Static analysis result for SHA-256 915726e4d6c6587f…

MALICIOUS

PDF

33.8 KB Created: 2021-07-06 07:20:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: 9e615c0b2bd59caa687f69ad8be2384d SHA-1: a5c7c26e74c5d51e850ef66651a18a804cae6463 SHA-256: 915726e4d6c6587f460bc6a3ba5a3137b3652931ad143ea1e4902e2274bda314
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of free game currency and hacks for popular games to entice users. It contains multiple links, including http://netcdn.tw/app/431946152/roblox-hack-tool-game-hack, which likely lead to malicious content or malware downloads. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and link patterns.

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/431946152/roblox-hack-tool-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/how-to-hack-people-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/microsoft-bing-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-hack-online-generator_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/roblox-eat-or-diy-game-hack_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-heaven-links_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-free-clothes-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/download-apps-for-robux_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/real-hack-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-livr-emerald-giveaways-roblox-direct_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-free-robux-and-tix-on-roblox-2021_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-free-spins-and-coins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/minecraft-story-mode-free-download_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/hack-coin-master-pc_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-mod-apk_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/minecraft-apk-114-4_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-trick-2021_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/pokemon-go-kanto-free-pass_GM1094591345.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_off00002fe4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FE4 21856 bytes
SHA-256: 694e1f453b3168b72cee74d7118368f2a4e19f68663e6c7c63bfb471a711b5ce
font_01_sfnt_off00006011.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6011 18656 bytes
SHA-256: e8d3b80f1b6f2c9c2bf73e7970ea5f3b8003eca05e06d1d82551611c8be56651

Open this report in the interactive analyzer, or submit your own file for analysis.