Malicious PDF — malware analysis report

Static analysis result for SHA-256 e9ec6049659da3cc…

MALICIOUS

PDF

34.4 KB Created: 2021-06-29 04:45:42 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: a3948931170b292e770ee77216520e14 SHA-1: 1793078cfc597e24540c2077ec61dabe804407c3 SHA-256: e9ec6049659da3cc6d043e35d246972a21df2b70f77e6685a7101da651292585
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/431946152/hack-any-tycoon-roblox-win10-game-hack PDF link annotation
    • http://lib.untad.ac.id/repository/daniel-refu10-free-gift-card-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-hack-client-windows-10-2021_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-shield_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-meep-city-roblox-money-2021-mac_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-coins-and-spins-link-for-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-minecraft-pe-server_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/fan-page-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-minecraft-coins-for-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/password-free-roblox-accounts_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-get-free-robux-without-offers_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-coin-master-apk-download_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/find-free-download-of-roblox-zombie-rush-for-windows7_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/minecraft-nintendo-switch-digital-code-free_GM479516143.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/coin-master-free-bonus_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/how-to-hack-on-pc-roblox_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/free-roblox-accounts-dantdm_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/roblox-work-at-a-pizza-place-hack_GM431946152.pdfIn PDF document text
    • http://lib.untad.ac.id/repository/hack-coin-master-net_GM406889139.pdfIn PDF document text
    • http://lib.untad.ac.id//repository/coin-master-free-coins-and-spins-daily-summary_GM406889139.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_off00003015.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3015 21776 bytes
SHA-256: 38673d8cad2377fb839b7567feb2edb97815f8fbdea39d2f5aa8347b0a38e9af
font_01_sfnt_off00006014.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6014 19432 bytes
SHA-256: f4676b1c2305b362e44d6c1c8b47ae5ce348cd6675656307683c1d8d47965328

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