PDF malware analysis — malicious · 07f9a11a7c3b0d5d

MALICIOUS

PDF

45.8 KB Created: 2021-06-03 15:17:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: e1922ca8dd3d7c0958489e9cb429e485 SHA-1: 0b89f1ccb5fc6f0a24e1f3186074c6366f7d6914 SHA-256: 07f9a11a7c3b0d5d751d797ff35341ff57bc81c01f47cf26fd8e2a9767fde3fa

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 0.9864

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/1094591345/pokemon-go-free-evolution-trade-game-hack PDF link annotation
- https://www.jcn.co.uk/uploads/files/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/the-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-with-no-verification-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-get-unlimited-robux-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-please_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/pubg-mobile-uc-qatar_GM1330123889.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-gameplay_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-free-food_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-coin-master-spin-generator_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-redeem-codes_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-earn-robux-for-free-2021_GM431946152.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/minecraft-pe-free-download-android_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/claimrbx-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/rbxfree-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-pe-apk_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-tricks_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-maps-pe-free-download_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/haktuts-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.

Filename	Kind	Source	Size
`stream_004_off00004e36.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4E36	29000 bytes
SHA-256: `3ce44291521907cc4464ddb8d885d3570a61b448a2f210619f53e352984f267a`
`font_01_sfnt_off00008f3b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F3B	18796 bytes
SHA-256: `f9e8f9dbe7d7c9dd972a10415380601cbc2492f391208685bf072ae3f8ed069e`

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