Malicious PDF — malware analysis report

Static analysis result for SHA-256 5a787857aa9dda05…

MALICIOUS

PDF

47.1 KB Created: 2021-06-03 13:21:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-07
MD5: d0510541bf5e914a1e95888135c67eaf SHA-1: 9debb8c7d951e9cfc8c2bcebd1e83abbc7e6ea3d SHA-256: 5a787857aa9dda0536a2e6c7b04f0a9aadd6a2102a6fb0abc2657c09f9f1c7d5
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains a high-confidence heuristic indicating it links to a game hack lure, specifically targeting Roblox and Coin Master. The embedded URL, https://netcdn.online/app/431946152/easy-roblox-today-game-hack, is likely a gateway to malicious content or a phishing page. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a social engineering tactic to trick users into downloading potentially harmful files or visiting malicious websites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9769

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 https://netcdn.online/app/431946152/easy-roblox-today-game-hack PDF link annotation
    • https://perpustakaan.itda.ac.id/repository/coin-master-game-hack-app-download_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-comcom_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/cm-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/www-coin-master-hack-tk_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/how-to-get-free-stuff-on-roblox-2021_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/free-coin-master-hacks_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-fun-com-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/coin-master-free-spins-and-coins-daily_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-java-code-free_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/tiktok-free-20-likes_GM835599320.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-free-edition_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-free-robux_GM431946152.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/wwwhaktutsin-2021-08-coinmasterfreespinandcoinlinkhtml-m-1_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-download-free-download_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
    • https://perpustakaan.itda.ac.id/repository/roblox-hack-apk_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Related samples 8

Ranked by shared artifacts, heuristics, extracted URLs, CVEs, and signatures.

Full JSON: related samples API

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00005050.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5050 25156 bytes
SHA-256: bd35906ee39ce586d26eee2f105ef60de3228f5d1811b208ae6f5bfd38f2cd65
font_01_sfnt_off00008ae2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8AE2 2824 bytes
SHA-256: 1d0cb1023eaa225682b8e7a2c8df4e4c96545ba7eedaf3d9844e51183e9ca189
font_02_sfnt_off0000948f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x948F 18364 bytes
SHA-256: e553aa4dc1eeda8b8c5a317bba368be2d7717273b9b6ea138d4861a68924f7c9

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