Malicious PDF — malware analysis report

Static analysis result for SHA-256 70c92f020c3308e8…

MALICIOUS

PDF

45.2 KB Created: 2021-06-03 15:21:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01
MD5: 36916409bdca96a90d4c71d39911da1a SHA-1: 1a0d65d24f284129aeb3caec818b99ba624052cd SHA-256: 70c92f020c3308e879f7d25dd8742ef6507238f5d1cae9244bfebb62fabedd4f
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 0.9865

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.online/app/406889139/free-mods-for-coin-master-game-hack PDF link annotation
    • https://www.jcn.co.uk/uploads/files/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-robux-scam_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/hack-to-send-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/is-minecraft-earth-free_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/master-coin-free-link_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/roblox-hack-site_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/free-minecraft-capes_GM479516143.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/robux-matchcomfree-robux_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/apk-hack-coin-master_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/robux-for-free-2021-no-vertification_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/roblox-money-hack_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/roblox-gift-card-free-codes_GM431946152.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/coin-master-free-spin-link-today-50_GM406889139.pdfIn PDF document text
    • https://www.jcn.co.uk/uploads/files/files/how-to-get-free-robux-without-verification-or-surveys_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
stream_004_off00005022.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5022 27780 bytes
SHA-256: 593a3c3b8eba8062f208b97523ec59e9566e1c8ef95b5b6db654859f8bcc9c4a
font_01_sfnt_off00008f3a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8F3A 17884 bytes
SHA-256: d16c5c599d3d6644d5dbf16cf85a8b89a6ca3b5553b7cae5f604ea90f23cd4c8

Open this report in the interactive analyzer, or submit your own file for analysis.