Malicious PDF — malware analysis report

Static analysis result for SHA-256 6c9951834a6ff184…

MALICIOUS

PDF

35.5 KB Created: 2021-06-25 03:53:28 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: fc2532821397f0e45749bb3d320693f9 SHA-1: a72a0d86b77cfd1e86e9726f0798c8cc35594d70 SHA-256: 6c9951834a6ff184e825c15caca4073b299fa50a5f732b326d8d34096eb40351
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to websites offering game hacks and currency, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the embedded URLs point to suspicious domains. While no scripts were explicitly extracted, the PDF structure and embedded links suggest an attempt to redirect the user to a malicious site, likely for credential harvesting or further payload delivery.

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/free-roblox-admin-accounts-with-robux-game-hack PDF link annotation
    • http://pustaka.fk.unand.ac.id/repository/comment-hack-sur-roblox-strucid_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-get-free-roblox-with-ihax-games_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-free-robux-on-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/get-tiktok-followers-free_GM835599320.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/comment-hacker-robux-sur-telephone_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-deathrun-cheats-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/hacks-para-robux_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/list-of-free-robux-codes_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/noto-clip-hacks-roblox-wall-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/robux-offers-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-twister-murder-how-to-hack-credits_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/comment-cheat-les-robux-ilimit_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/cheat-roblox-mod-menu_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/how-to-get-22-000-robux-for-free_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/hack-passwords-for-roblox_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-vehicle-simulator-money-hack-deutsch-2021_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/roblox-free-clothes-hack_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/robux-free-no-password_GM431946152.pdfIn PDF document text
    • http://pustaka.fk.unand.ac.id/repository/free-christmas-clothes-roblox_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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003162.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3162 22556 bytes
SHA-256: a2276eadd8c6f74135a82f624decaa91fdade40a77c7f113d8b3a7f0ab81e2bb
font_01_sfnt_off000063b3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x63B3 19812 bytes
SHA-256: 7a5975f1966f9ed4ef93fddedf62a187fe79801543066382bd3166145353dfe7

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