Malicious PDF — malware analysis report

Static analysis result for SHA-256 62a33d8de590565d…

MALICIOUS

PDF

34.8 KB Created: 2021-06-27 09:54:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29
MD5: 0e4e411513b57463be26e6535d04b5f1 SHA-1: d8793a58c786ae1b6e97d2e4cd443e2aa0c45c84 SHA-256: 62a33d8de590565d5eea0c8f94e2fa47b56acda58faad20354b4b97f676aebee
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-de-roblox-robux-infinitas-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/coin-master-link-daily-get-free-spins-amp_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-download-free-online_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-dungeons-download-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/hacked-roblox-game_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/synapse-roblox-hack-2021-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-robux-no-verification-no-download-2021_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-free-coins-in-mcpe-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-com-free_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/is-there-any-free-way-to-get-robux_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/clients-minecraft_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-hack-no-survey_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-mcpe-master-coins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-minecraft-alt-generator_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/free-minecraft-for-kids_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-2-roblox-credit_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/freerobuxhack-us_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/roblox-money-hack-apk-download_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-time-hack-ios_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-get-more-robux_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_off00002f09.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2F09 22848 bytes
SHA-256: 4bb225b62a3d37c939d39cd950c7df484fe68467ed95cfb6b165a2039fcdb038
font_01_sfnt_off00006252.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6252 19188 bytes
SHA-256: 87e6c56e4f0fa5680da3537e536767235b5ea1958b5bf029d4f19f5fb3ced21d

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