Malicious PDF — malware analysis report

Static analysis result for SHA-256 50c3de88d09f881e…

MALICIOUS

PDF

33.9 KB Created: 2021-06-21 11:58:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7d91f577c359cd17f89860f48012dd29 SHA-1: f0b8ae894cf3f9b190accee9322af445ca4be8de SHA-256: 50c3de88d09f881e97d18faf08fbf5453241d4b848d0df6fc6dce58160a9ace8
82 Risk Score

Malware Insights

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

The PDF document employs a game hack lure to entice users to click on embedded links. These links redirect to malicious websites, likely to download further malware or engage in phishing. The ML classifier strongly indicated maliciousness, and the presence of multiple game-related lures reinforces this assessment.

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-hacks-to-hack-any-game-game-hack PDF link annotation
    • http://shapemybrows.id/images/how-to-get-a-free-dominus-in-roblox_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-hack-tool-v1-9-download_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-cheat-generator-free-download_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/robux-free-2021_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/tiktok-for-free_GM835599320.pdfIn PDF document text
    • http://shapemybrows.id/images/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-no-email-no-password_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/hack-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-x-club-roblox_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/coin-master-hack-to-get-free-spins_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/roblox-lumber-tycoon-2-hack-2021_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/cheats-coin-master-free_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/free-robux-master_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-roblox-cards-live_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/wahoo-gaming-co-free-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/www-roblox-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
    • http://shapemybrows.id/images/free-minecraft-account-generator_GM479516143.pdfIn PDF document text
    • http://shapemybrows.id/images/mistplay-robux_GM431946152.pdfIn PDF document text
    • http://shapemybrows.id/images/free-roblox-generator-for-roblox_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_off00002e52.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E52 22224 bytes
SHA-256: 7bb6ea48e3e5b5701c92678e122fcb1900a07ffa36fabbbdc10b294cbc5e3f36
font_01_sfnt_off00005f4a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5F4A 19096 bytes
SHA-256: 5844b8002bde028c944e7c9a64972612c3e8cf7318c287c793e02a88c0fa1384

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