Malicious PDF — malware analysis report

Static analysis result for SHA-256 9da4c21c5cb6bed4…

MALICIOUS

PDF

42.4 KB Created: 2021-05-16 14:43:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25
MD5: b660d827d7197393ad4313351f0d2b8b SHA-1: afe0327ea70b300f65ac6f2c32d84e09f4cd8c72 SHA-256: 9da4c21c5cb6bed48e5321a65a6b161c094a34db11074fc5e60a1abbea75f150
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 0.9971

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/406889139/coin-master-download-game-hack PDF link annotation
    • http://loriginedupain.org/images/how-to-get-minecraft-for-free-on-android-device_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/25-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-hack-cheat-generator-coins-and-spins-unlimited_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-coins-and-spins_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-roblox-accounts-2021_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-spins-link-today-hack_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/is-it-possible-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/free-minecraft-java-server_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-spins-2021-today_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/sites-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-free-spin-now_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/get-free-robux-today_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/easy-robux-hack_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/wizard-hacks_GM479516143.pdfIn PDF document text
    • http://loriginedupain.org/images/free-pet-food-on-coin-master_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/how-to-get-free-robux-fast_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
    • http://loriginedupain.org/images/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdfIn PDF document text
    • http://loriginedupain.org/images/minecraft-pe-hacks-ios_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_off000048cc.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x48CC 26428 bytes
SHA-256: 5b5f9f71f91e38ad46d8c76ded9545458632592f2e8d83073d1debf00c3fa272
font_01_sfnt_off000083a8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x83A8 18124 bytes
SHA-256: 5249e296d4e98cbf63458d60065d08f788638b222f85d6c58d160e1a36990528

Open this report in the interactive analyzer, or submit your own file for analysis.