Malicious PDF — malware analysis report

Static analysis result for SHA-256 449c4533786b3830…

MALICIOUS

PDF

35.4 KB Created: 2021-06-24 12:25:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 68b1adfc80b6a49e80743ae97a7fc498 SHA-1: d70dbe15f4122e714d8949252538a5078c30896c SHA-256: 449c4533786b3830fb24400d1cb0759825dbec4017b7be23a63ca4184105d5c9
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/479516143/how-to-get-minecraft-for-free-on-ipad-game-hack PDF link annotation
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/can-i-download-minecraft-for-free_GM479516143.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-cash_GM406889139.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/robux-hack-apk-2021_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/free-mods-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/free-spins-for-coin-master-without-human-verification_GM406889139.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/daily-coin-master-free_GM406889139.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/roblox-free-robux-codes_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-cheats-free-spins_GM406889139.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/minecraft-life-hacks_GM479516143.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/free-group-roblox_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/xray-mod-minecraft-114_GM479516143.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-on-phone_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/apps-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-earn-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/how-to-get-free-robux-no-verification-2021_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • https://www.st-lukes-endon.staffs.sch.uk/admin/ckfinder/userfiles/files/roblox-free-robux-generator_GM431946152.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_off000034d1.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x34D1 22560 bytes
SHA-256: 6e439d179186276b913603efee191db29737b5e46a786d6969048a4901cc00f2
font_01_sfnt_off00006726.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6726 18512 bytes
SHA-256: 9a5f2a3eec7ab4d8158ce442c8139f99f1f1cb7fd7be9151c1ebe1a4eaf5a268

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