PDF malware analysis — malicious · e7b93edb9510f0c8

MALICIOUS

PDF

46.1 KB Created: 2021-06-03 16:02:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 017650037cef03258848b2550a19a200 SHA-1: 8d97a5703857f865bf27584f80b09f3cc328e65c SHA-256: e7b93edb9510f0c8c01def6a2f943108797279750d74ddc3ea83655a67418cd8

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9797

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/free-spin-and-coin-links-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/minecraft-alt-accounts-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-windows-10-edition-free-with-java_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/download-hack-coin-master-apk_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-golden-cards-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/microsoft-store-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/pokemon-go-free-7-day-streak-rewards_GM1094591345.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-codes_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-roblox-gfx_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/earn-robux-websites_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-gold-coin-master-village-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/hack-version-of-coin-master-apk-download_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off00004f52.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F52	25224 bytes
SHA-256: `0f1b83a85cff98bf974439c60275e9204d31b8254d4780a921b9917a313f1c54`
`font_01_sfnt_off000088e6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x88E6	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00009298.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9298	17896 bytes
SHA-256: `9e473fa370b66a6494b15977b9d2a3ea7c01ddc9c3166ab955b90e57f7a3e83c`

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