Malicious PDF — malware analysis report

Static analysis result for SHA-256 9cdd412e24b824f8…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 21:33:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 3a9dad049b7c820d32d64777fef43a26 SHA-1: 1cd23e6dba1c88595ce779b8a49e1738717ac4e5 SHA-256: 9cdd412e24b824f874a4ff3627b574fec69f21c5a90ba57dde8cf01ddb53b2c7
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free in-game currency, directing users to the URL http://netcdn.tw/app/479516143/free-minecraft-pe-server-game-hack. This URL is associated with a high-risk heuristic for game hack redirects. The document body and embedded URLs suggest a phishing or scam attempt to trick users into visiting potentially malicious sites. No scripts were extracted, but the overall pattern indicates a social engineering attack.

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/free-minecraft-pe-server-game-hack PDF link annotation
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-kill-aura_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-tricks_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/download-hacked-games-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-no-password_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-get-free-roblox-money_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-girl-roblox-clothes_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-coin-and-spin-for-coin-master_GM406889139.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-account-roblox-with-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-minecraft-texture-packs_GM479516143.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-script-roblox_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-game_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
    • http://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-by-watching-ads_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/free-robux-survey_GM431946152.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/minecraft-hack-mod_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
    • https://elearningman2.man2palembang.sch.id/__statics/gudangsoal/files/coin-master-hack-using-lucky-patcher_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_off0000330e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x330E 22112 bytes
SHA-256: 55505a70fa1edcd0b8ca51b325d2afadfbc3fd7d8d885c52b7814166f1113225
font_01_sfnt_off000063f8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63F8 18124 bytes
SHA-256: 44cbab3028a3df9bc9841a4d80e53babf0d09cfa62fa83b1fc03cf8d1ca0a26e

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