Malicious PDF — malware analysis report

Static analysis result for SHA-256 6e4108c61e2d56bd…

MALICIOUS

PDF

35.0 KB Created: 2021-06-28 00:12:27 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17
MD5: 7b00f8e68f95bd93a07d4df56ba74cc5 SHA-1: 70536541636250d76cba8582c0f31398f34db541 SHA-256: 6e4108c61e2d56bd349fef168557099c4b3cd9d00a5663a9376df26951437bf2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs that are disguised as game hacks and generators for popular games like Roblox and Coin Master. These links likely redirect to malicious websites designed to trick users into downloading further malware or providing personal information. The ML classifier strongly indicated maliciousness, and the heuristic firings confirm the lure-based attack pattern.

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/how-to-get-admin-on-roblox-hack-game-hack PDF link annotation
    • http://global-brand.net/userfiles/files/bloxawards-com-earn-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/cheats-for-coin-master_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-free-spins-link-2021-hack_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-daily-free-spins-hack_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-get-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/minecraft-free-computer-game_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/toolbox-apk_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/comment-avoir-des-robux-gratuit-sur-roblox-2021-sans-hack_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/coin-master-game-hack-online_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/minecraft-bedrock-download-pc-free_GM479516143.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/pokemon-go-free-2021_GM1094591345.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/robux-now_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-spins-on-coin-master-app_GM406889139.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/show-me-how-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/everything-free-on-roblox_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-robux-com_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/free-robux-codes-no-human-verification_GM431946152.pdfIn PDF document text
    • http://global-brand.net/userfiles/files/hack-version-of-coin-master_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
font_00_sfnt_off00003080.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3080 22496 bytes
SHA-256: 0f4ed65a9cff2471717df916a82f4999a61880a44d8189156974270fbd73a07e
font_01_sfnt_off00006299.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6299 19476 bytes
SHA-256: 0599deebcd702f08ba6ac5901d2ff826a819b55580ef59d29b2e3c9bf8fdc09c

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