Malicious PDF — malware analysis report

Static analysis result for SHA-256 eea064d95f1c79a9…

MALICIOUS

PDF

35.2 KB Created: 2021-07-06 09:45:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 2196981a3d69de0d7237e17f90d34497 SHA-1: 9076ce2dd73c224c58a2d654e2ea44209dc7035a SHA-256: eea064d95f1c79a9dbf79026282c3794deb819d30fe73d97ef8bcbf81d0f34ea
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/406889139/coin-master-hack-apk-2021-download-game-hack PDF link annotation
    • http://digilib.ulm.ac.id/pusat/repository/roblox-avatar-girl_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-scripts-roblox-voidacity_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/pop-slots-free-vegas-casino-slots-machine-game-coin-master_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-get-a-free-roblox-group_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/hack-para-robux-real_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-clothing-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/how-to-hack-into-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-salvage-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/download-roblox-paintball-hacks_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/minecraft-multiplayer-free_GM479516143.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-promo-codes-2021-no-inspect_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/roblox-free-50-robux_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/2021-line-script-hacks-roblox_GM431946152.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-tiktok-followers-no-human-verification_GM835599320.pdfIn PDF document text
    • http://digilib.ulm.ac.id/pusat/repository/free-robux-obby_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
font_00_sfnt_off00003181.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3181 22628 bytes
SHA-256: 19a32bc13b778502a8969bb60930105a3ffe3b74d2aada867a6bc20120cbdc15
font_01_sfnt_off0000640c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x640C 19160 bytes
SHA-256: 08c3d26020315796c296df9400c9a2a920b0dbbe4ac3986bc7fb3bd2c9b27f96

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