Malicious PDF — malware analysis report

Static analysis result for SHA-256 e98d24e14f991ef8…

MALICIOUS

PDF

41.8 KB Created: 2021-05-15 08:31:30 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05
MD5: e2e1d88087b6960f1f5944a82fe2a483 SHA-1: dcd0aef4f0ddf7b1244d74ff34dad4f07b1661d6 SHA-256: e98d24e14f991ef8f785cf07844ddf5821bdd71d085399ecbc087f832a262e38
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple embedded links and a visible call-to-action, directing users to websites offering game hacks and generators. The ML classifier strongly flagged this PDF as malicious, and the heuristic rules indicate it's a lure for game hacks. While no scripts were directly extracted, the nature of the links suggests a phishing or malware distribution attempt.

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-free-spins-hack-iphone-game-hack PDF link annotation
    • http://wadimor.co.id/media/imagesfiles/minecraft-noob-vs-pro-vs-hacker_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-links-for-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-code-hack_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-coins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-without-human-verification_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-minecraft-java-account_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-me-robux-for-free_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-robux-generator-no-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-free-spin-and-coin-link-app_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-money-links-coin-master_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/how-to-get-free-pets-in-adopt-me-roblox_GM431946152.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/minecraft-linux-free_GM479516143.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/coin-master-website_GM406889139.pdfIn PDF document text
    • http://wadimor.co.id/media/imagesfiles/free-spins-and-coins-coin-master-2021-link_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
stream_003_off00004a25.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A25 24500 bytes
SHA-256: 6fafe177b242aea1b856eb38d73e4361239cbbf4213f08ea06f0f13f1b7ca12f
font_01_sfnt_off0000817d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x817D 18220 bytes
SHA-256: 1dfaaa5fda009d523ba1163bf16545e2c66f7621c16cb7ff5e9bef64f998ba72

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