Malicious PDF — malware analysis report

Static analysis result for SHA-256 ae24600bff2303f3…

MALICIOUS

PDF

44.3 KB Created: 2021-05-19 07:35:39 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: 0924e4239f43075b6b3d1c46cf63f1c5 SHA-1: 48431469e33faffd89d8491a870fd810b13ea0d2 SHA-256: ae24600bff2303f379b0440b33ca41212849ffba73e4c65965a4e7348dec7f55
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 https://netcdn.xyz/app/479516143/minecraft-java-account-free-game-hack PDF link annotation
    • http://ivalor.fr/images/how-to-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-robux-hack-us_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/free-games-like-roblox_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/free-roblox-hair-girl_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-free-roebucks_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-link-iphone_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-and-coins-hack_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/free-printable-minecraft-coloring-pages_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-35-13-hack-download_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/link-for-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/robux_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-roblox-premium-for-free_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/coin-master-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
    • http://ivalor.fr/images/robux-hack-free-robux_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/wurst-115-2_GM479516143.pdfIn PDF document text
    • http://ivalor.fr/images/how-to-get-free-robux-without-downloading-any-apps_GM431946152.pdfIn PDF document text
    • http://ivalor.fr/images/minecraft-wurst-hacked-client_GM479516143.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
stream_003_off00004c7a.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C7A 30020 bytes
SHA-256: f13c6719806bf85c76dfcb6d3388967194bf95da19f6cfc0e827fcd2df233a74
font_01_sfnt_off00008b7e.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8B7E 18128 bytes
SHA-256: 91c13f1291a2ca04d91179ef061400a9e1d7bdcd902d3a6c12d687c4cb44bfbf

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