Malicious PDF — malware analysis report

Static analysis result for SHA-256 68cadefd4215793c…

MALICIOUS

PDF

33.3 KB Created: 2021-07-01 13:57:35 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 70eb65bda721b61245d440e8ff4361f9 SHA-1: 0416112be2c2a9ca24fb22f69c920a7ed8b4b4c3 SHA-256: 68cadefd4215793c15b5dfdc8cc2053bdfa109b4cabbf78d26fb233cffdfc430
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and a high-confidence ML classifier indicates maliciousness. The document body and heuristics suggest a lure for game hacks and account selling, directing users to external sites. No scripts were extracted, but the presence of embedded URLs points to a potential download or redirection to a malicious payload.

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/roblox-account-selling-free-game-hack PDF link annotation
    • http://lib.fisipumt.ac.id//repository/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/inappropriate-roblox-games-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-coins-hack_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/coin-master-free-link-app_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/minecraft-free-ios-2021_GM479516143.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/giftbux-com-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/coin-master-mod-apk-2021_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-redeem-card-pin-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/call-of-robloxia-5-roblox-at-war-hack_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/dominus-from-roblox-free_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/how-to-get-free-robux-on-android_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id//repository/how-do-you-hack-roblox_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-unlimited-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-spins-and-coins-for-coin-master-game_GM406889139.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/complete-an-action-for-free-robux_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/free-robux-message-wont-go-away_GM431946152.pdfIn PDF document text
    • http://lib.fisipumt.ac.id/repository/roblox-outfits-free_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_off00002c92.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2C92 22356 bytes
SHA-256: 0d84edabe232dc69ce55d1e33b9fd8e4d57295644573a4ca2b3fdfbb018f2a79
font_01_sfnt_off00005d26.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5D26 19012 bytes
SHA-256: 7bc9f79753205a6c532ab884073382a83b9e1fb7c3a5b659f46e723703e6cdd0

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