Malicious PDF — malware analysis report

Static analysis result for SHA-256 c376ea492ccda19d…

MALICIOUS

PDF

34.2 KB Created: 2021-06-25 20:15:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 89253c8c5ec28a5a235ef1ffda73720e SHA-1: 57db027714f5945b5e8adba44e893c00d276d78e SHA-256: c376ea492ccda19d88d43a5801e6d6450a2624724eea4d7bcd8a73d0bbf88484
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links and references to game hacks and free currency generators for popular games like Roblox and Coin Master. The primary link, http://netcdn.co/app/431946152/donne-du-t-shirt-hacker-roblox-game-hack, is identified as a redirector lure for game hacks. This suggests the document's purpose is to trick users into visiting malicious sites that may host malware or phishing content.

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/donne-du-t-shirt-hacker-roblox-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/paginas-que-dan-robux-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-free-no-virus_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-real-working_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-free-spins-heaven_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-pe-mod-menu_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/mais-backpack-free-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-robux-for-real_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spins-on-coin-master-link_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/mcmaster-club-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-april-fools-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-app-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-can-someone-hack-into-yourroblox-account-from-discord_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hacking-roblox-with-brutus_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/new-figer-hack-pastbin-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-earn-robux-without-cheats_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cheat-engine-roblox-trainer_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/get-free-robux-now_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_off00002d1d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2D1D 22784 bytes
SHA-256: 83ae27a73d5e13d01e374df142757954bd1a7ccfdffe71521f94ea502b284623
font_01_sfnt_off00005fed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5FED 19352 bytes
SHA-256: 1a5947cfea0cb82bd8dc53a58b96da97cc31190fa9ce097ae757c718edae1aab

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