Malicious PDF — malware analysis report

Static analysis result for SHA-256 0cd9a648c57eab13…

MALICIOUS

PDF

35.0 KB Created: 2021-07-05 22:01:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: fc0973b699c2c08f0cb6ada69a8f0e0e SHA-1: 16282cd011b0a11db028f54f3f1416e8d06fa3ae SHA-256: 0cd9a648c57eab13c3a6085fd45e2fab35815fb0a2b6e5cf37aced9274ad7088
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/431946152/10-robux-game-hack PDF link annotation
    • http://lib.uho.ac.id/library/repository/minecraft-bedrock-download_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-minecraft-for-free-on-nintendo-switch_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/pokemon-go-kanto-tour-free-version_GM1094591345.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-100-working_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/free-roblox-tracksuit_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/master-coin-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/best-roblox-hacks_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-official-website_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-no-verification-2021_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-download-wurst_GM479516143.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/how-to-hack-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-links-to-free-spins_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/free-back-accessories-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/coin-master-hack-android-root_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/coin-master-download-hack_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library//repository/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-buy-things-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-hacks-on-roblox_GM431946152.pdfIn PDF document text
    • http://lib.uho.ac.id/library/repository/how-to-get-free-coins-on-coin-master-iphone_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_off00002fc8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FC8 23228 bytes
SHA-256: 402e6cc2f62ebd100bb82b4dc0e94e8a5545b7f0e0004f405d75845203c9c573
font_01_sfnt_off00006438.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6438 18828 bytes
SHA-256: 119893438dfdee07160b20114d595d80c7b0a9a0af49c5fc1e20f3c535fc2fc3

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