Malicious PDF — malware analysis report

Static analysis result for SHA-256 67bee80421446fcf…

MALICIOUS

PDF

34.3 KB Created: 2021-07-03 12:03:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fea3151ffbb8e40ee412a422ef48aa45 SHA-1: 2359ca1c641eb1d1ce1e34ede4e4d1a55a99e303 SHA-256: 67bee80421446fcfd16324ef974f42fac619f28f5b645f8a72d991182a5ed8c1
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/431946152/how-to-hack-in-arsenal-game-hack PDF link annotation
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/admin-command-for-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/free-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/coin-master-free-coins-today_GM406889139.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/how-to-earn-free-stars-on-coin-master_GM406889139.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/intro-roblox-free_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/how-to-hack-roblox-mobile-with-cydia_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/how-to-get-minecraft-for-free-on-xbox_GM479516143.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/allahuakbar-roblox-hack_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/wurst-client-112-2_GM479516143.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/descargar-hacks-de-roblox-nuevos_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/arsenal-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/free-robux-without-verification-2021_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/free-minecraft-premium-account_GM479516143.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/dbz-rage-roblox-cheats-for-ulimited-power_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/free-coin-master-spins-daily_GM406889139.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/wurst-download_GM479516143.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/coin-master-homepage_GM406889139.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/weird-roblox_GM431946152.pdfIn PDF document text
    • http://mtsnukotaagung.sch.id/__statics/gudangsoal/files/how-to-hack-on-jailbreak-roblox_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_off000031a9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x31A9 22088 bytes
SHA-256: ab727e7edfd0b8b7f05d48dfdbc4ee6b27770defaf31e8485b3295ddae897871
font_01_sfnt_off0000629d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x629D 18452 bytes
SHA-256: e830d4d2850352ff681c802b50bfdb69e36cdf0dd9a2fca6f972fc848603048f

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