Malicious PDF — malware analysis report

Static analysis result for SHA-256 f8d60c4e196d1ee8…

MALICIOUS

PDF

35.0 KB Created: 2021-06-19 20:46:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 625469b19c9e99b6ff2eb7dd64a7cad2 SHA-1: ce998cf61c3d127383053474287c1aab4e8da63e SHA-256: f8d60c4e196d1ee84118a841467d24c41143cd68354a94edf7c168ebbdce6dc0
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains multiple links and a heuristic firing indicating it's a lure for game hacks or generators. The document body, though partially garbled, contains text related to 'Roblox Death Sound Free Dwonload' and numerous URLs pointing to similar content. The primary malicious URL identified is http://netcdn.co/app/431946152/roblox-death-sound-free-dwonload-game-hack, which likely serves as a redirector to a malicious payload.

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.co/app/431946152/roblox-death-sound-free-dwonload-game-hack PDF link annotation
    • http://pustaka.faterna.unand.ac.id/repository/claim-robux-free_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-hack-version-2021-download_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-redeem-codes-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/cheat-admin-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/rbx-space-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-today_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/cheat-2021-robux-pc_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-2021-no-waiting_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/80-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-be-a-hacker-in-roblox-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-a-robux-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-hack-name-and-password_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/hilton-hotels-hack-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-free-spins-glitch_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-get-minecraft-for-free-on-android_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/cheat-codes-to-get-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-daily-free-spins-link-today-haktuts_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/robux-hack-inspect_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_off00002fee.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FEE 22456 bytes
SHA-256: b8392de09695fe133b4b2ed6ce348de46a074ea9f57a370430c9d1987af907ef
font_01_sfnt_off00006250.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6250 19568 bytes
SHA-256: bffb0a5888e26d69619c0bc7687cc00a9dfca7b0fdb44b3bb44ae8b83cb80409

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