Malicious PDF — malware analysis report

Static analysis result for SHA-256 7a71c6e12e478de1…

MALICIOUS

PDF

43.0 KB Created: 2021-04-29 03:41:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 8df2a573c633f3d00067beb375dfd822 SHA-1: 3b9b1cbf57dbd55b4c73ad39c9f469515d00a7fb SHA-256: 7a71c6e12e478de1864a254b684cee0fc5a54813c76f77b782832711f2723176
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links and a call-to-action phrase, attempting to lure the user into clicking a URL associated with Roblox game hacks. The primary malicious URL identified is https://netcdn.xyz/app/431946152/fort-hood-texas-hacks-roblox-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest a potential for malicious JavaScript execution or redirection to a phishing or malware distribution site.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

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.xyz/app/431946152/fort-hood-texas-hacks-roblox-game-hack PDF link annotation
    • https://www.bolsoshf.com/ckfinder/userfiles/files/free-cookie-codes-for-roblox.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/roblox-noclip-no-cheat-engine.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/increible-hack-de-robux.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/roblox-shirt-template-free.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/como-hackear-conta-de-roblox.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/uirbx-club-free-robux.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/how-to-hack-roblox-catalog.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/free-gamepass-roblox-script-not-patched.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/easiest-way-to-upload-audio-on-roblox-for-free-2021.pdfIn PDF document text
    • https://www.bolsoshf.com/ckfinder/userfiles/files/free-decals-for-roblox-work-at-a.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
stream_003_off000042f9.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x42F9 29236 bytes
SHA-256: 0b602600ee717529d193a4005b814642744c34b6ba71a6aaf9a858deb74836a0
font_01_sfnt_off00008545.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8545 18624 bytes
SHA-256: 005d9a78c3c999db27475156b16ca98a7285deb760b732bd2312d44b73371d77

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