PDF malware analysis — malicious · 32ba8a8783088e27

MALICIOUS

PDF

43.7 KB Created: 2021-06-03 15:21:00 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 7cf3d7f280bf2c639fe8e87a04eaec26 SHA-1: 0d8685d95416c223386e1668bf94e493df0b7f5e SHA-256: 32ba8a8783088e273f7ffd8570c61158768f30267fbec9987f986a0d8be4b131

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a link to a 'game hack' website, indicating a social engineering lure to trick users into visiting a potentially malicious site. The ML classifier strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the PDF structure and embedded URIs suggest it's designed to redirect users to external content, likely for further exploitation or malware delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.online/app/406889139/coin-master-spin-link-hack-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/free-roblox-accounts-that-work_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-script-executor-free_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-verified-tiktok-free_GM835599320.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-no-verification-2021-ios_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/install-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-promo-codes-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/tiktok-free-view-30_GM835599320.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-without-verification_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/give-me-robux-now_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-windows-10-edition-free-download_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/robloxmatchcom-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-coins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-link_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-can-you-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-pink-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-pe-server-hosting-free_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.

Filename	Kind	Source	Size
`stream_004_off00004f87.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F87	25420 bytes
SHA-256: `89a4fc8b8ebd09bb0ef3c8336de41c4fb549873d14d52938495e279dcb58c98e`
`font_01_sfnt_off00008936.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8936	17892 bytes
SHA-256: `c533e9bb75785fd28ad8a213fe77ef0dfd7b5440e23aeac77779c9c975df78ca`

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