Malicious PDF — malware analysis report

Static analysis result for SHA-256 6b1f2c6d25566533…

MALICIOUS

PDF

38.9 KB Created: 2021-06-18 02:31:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: f4844658fd5ce6797f6a71f2e1b8ec25 SHA-1: 21fc133f1c350b63ea804a013e193eb7f26ecd23 SHA-256: 6b1f2c6d255665333e942e1ca9d8a45f658924baf846244dc47c37570db22639
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains multiple links and a call-to-action phrase related to game hacks and free currency, indicating a lure for users to click through to potentially malicious websites. The ML classifier strongly flagged this PDF as malicious, and the embedded URLs suggest a phishing or malware distribution attempt. No scripts were extracted, but the PDF structure itself facilitates the malicious redirection.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9985

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/apps-that-will-give-you-free-robux-game-hack PDF link annotation
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-cheats-card_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-apk-download-free-11-055_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-hacks-wurst_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/roblox-hacked-com-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-to-hack-roblox-accounts-passwords_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/is-tiktok-app-free_GM835599320.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-bedrock-server-hosting-free_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/how-do-i-get-free-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-legit_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-spin-ml-link_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-free-gifts_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/tiktok-free-vs-paid_GM835599320.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-master-vip-hack_GM406889139.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/dragon-blox-x-roblox-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-private-minecraft-server_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/minecraft-launcher-free_GM479516143.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/free-robux-for-kids-no-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.faterna.unand.ac.id/repository/coin-and-spin-link_GM406889139.pdfIn PDF document text
    • https://www.roblox.com/.IIn 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_off00003d21.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3D21 23316 bytes
SHA-256: 1c3807740e27910f4b6a1e8debb1fea9f41c70a0b6300cc5c713db5e5578a0b9
font_01_sfnt_off00007191.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7191 19644 bytes
SHA-256: 712a4c505fb8a96fb5b82b8ed6956cff8924cb683856dff6059767ba4dc7b257

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