Malicious PDF — malware analysis report

Static analysis result for SHA-256 2be3f11651addd60…

MALICIOUS

PDF

34.8 KB Created: 2021-06-22 06:00:46 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02
MD5: 49e915756f00777f6b920000d28eb6de SHA-1: 0d71ffd0554978f4062ab5062aa7e59b7c1bc0bb SHA-256: 2be3f11651addd60839a5556c21453b2efdcf179c3e0c84d1b533f469d94f81f
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.co/app/431946152/but-link-says-free-robux-game-hack PDF link annotation
    • http://jarviskeller.co.uk/media/storage/editor/files/all-links-for-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/cm-spins_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/get-robux-today_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-robux-without-download-apps-or-survey_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-only-username_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/piano-keybard-roblox-hack_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/com-roblox_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-not-a-scam_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/coin-master-apk-hack-3527_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/what-do-you-do-if-you-get-hacked-on-roblox_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-rewards-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/can-you-actually-get-free-robux_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/hack-mod-coin-master_GM406889139.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-robux-microsoft_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/how-to-get-free-robux-on-ipad_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/pokemon-go-free-clothes-code_GM1094591345.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
    • http://jarviskeller.co.uk/media/storage/editor/files/free-spins-for-coin-master-game_GM406889139.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_off00002fa2.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FA2 22644 bytes
SHA-256: e9e275a30fb79b13b7e7409cbd1e9aac2f46c60d9f5b2017d18715dcca2d3530
font_01_sfnt_off0000621f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x621F 19292 bytes
SHA-256: 85e89077dd7519a4f4a641b8f2e0513bf80b3f407ef760b68c8b6f40ad995aa9

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