Malicious PDF — malware analysis report

Static analysis result for SHA-256 f0b8f0b8cbf28343…

MALICIOUS

PDF

41.4 KB Created: 2021-04-29 11:02:04 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 305c2c9a4051510282d198be8c203d87 SHA-1: d1056cfc65b0b04cb8154e685f3ebb8ea42fb92e SHA-256: f0b8f0b8cbf2834395d7b7b24ef77511b17a4d4a7c148551938fe78a00c43efb
90 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free game hacks' to trick users into clicking malicious links. The primary link redirects to a URL associated with a game hack generator, which is a known tactic for distributing malware or leading users to phishing sites. While no scripts were directly extracted, the PDF structure and embedded links strongly suggest a malicious intent to redirect users to potentially harmful content.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9941

Heuristics 5

  • 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.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • 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/roblox-cheats-client-game-hack PDF link annotation
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/nike-roblox-free.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/denis-how-to-get-free-robux-i-39.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/tycoon-simulator-hack-roblox.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/free-shirts-that-cost-robux-youtube.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/roblox-speed-hack-script-v3rmilion.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/free-robux-xyz.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/how-to-exploit-your-on-roblox-with-cheat-engine.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/royalty-free-music-one-sirius-beats-roblox-id.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/earn-free-robux-by-downloading-apps.pdfIn PDF document text
    • https://aphb.or.id/new/public/ckfinder/userfiles/files/free-roblox-exploi.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_off000043b4.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x43B4 26776 bytes
SHA-256: ae63554e038c7432f6b581db46e61417aa9215f9d2409864fc69912fc64cb992
font_01_sfnt_off00007fd4.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7FD4 18404 bytes
SHA-256: 9903d856a80366ca51eee49f9c5eccb28e0ec998848601bc97a7952b9b17b34c

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