Malicious PDF — malware analysis report

Static analysis result for SHA-256 95c2c39aeb548b14…

MALICIOUS

PDF

34.6 KB Created: 2021-07-04 01:03:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 034a7fdcc5eb35ac4088e125cc85fcf7 SHA-1: dda304fe9d6dfabb6b8da7ad52d7246089bc38ea SHA-256: 95c2c39aeb548b14de118a26bca4ce3f67daa8da5fe4a79096a2e072f814269d
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-get-a-lot-of-robux-game-hack PDF link annotation
    • http://library.umla.ac.id//repository/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-daily-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/wurst-mc_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id//repository/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/rewardex-robux_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-spin-gratis-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-level-4_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/mcpe-hack-client_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/how-to-hack-minecraft_GM479516143.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-hack-uk_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-instantly_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/how-to-get-free-spins-in-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/freecoins_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/another-hack-on-roblox_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id//repository/free-robux-website_GM431946152.pdfIn PDF document text
    • http://library.umla.ac.id/repository/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
    • http://library.umla.ac.id/repository/pokemon-go-free-upgrade_GM1094591345.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_off00002fd9.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2FD9 22668 bytes
SHA-256: 15f83983ac6f1792f75ad0fb83ad116668068d4294ae6f8ecef93c104c96604d
font_01_sfnt_off00006297.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6297 18820 bytes
SHA-256: cdc6a2a788e7d1c038814bd34757d45de3c8708b5dd2a0e8e1b59012f3bb2d4a

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