Malicious PDF — malware analysis report

Static analysis result for SHA-256 30a9b756467f4358…

MALICIOUS

PDF

34.7 KB Created: 2021-07-03 19:12:08 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: f2a185d349ecbdd06b9e173372bcf78a SHA-1: 70b9925d97e822207f22997da561a6cac3299c47 SHA-256: 30a9b756467f4358f2425cb68d30cc9a1c09beca4630c62692d5d4170e1e659d
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

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.tw/app/406889139/free-spins-on-coin-master-hack-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/25-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-drivers-upgrade-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-more-robux-for-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-exploit-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-daily-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-ftw_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-in-roblox-com_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-without-human-verification-real_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/114-hacks_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-robux-patched-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-game-free-download_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-spin-coin-master-twitter_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-website_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/lyce-de-roblox-2-hack-directeur_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-dll-hack-52021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-spin-hack-no-verification_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/ways-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hack-account-roblox_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-a-roblox-account-password_GM431946152.pdfIn 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_off00003252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3252 22584 bytes
SHA-256: 8d9748b3ffac08f33247c0180942a40fdd38045b20f1f70edab351f66c096479
font_01_sfnt_off000064b7.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x64B7 18344 bytes
SHA-256: 9cc65fec0e6e17c64ee19ce37c7fd11c32f0da228a4485440a13819ddf353b1b

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