PDF malware analysis — malicious · f2ecd5e2381c6e69

MALICIOUS

PDF

46.9 KB Created: 2021-06-03 14:47:18 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 41b1d09e71ad2a77ee4e9f5ba921fa8c SHA-1: bd2cb5bb892ff16990f60d76a3c7b1956abf0ac9 SHA-256: f2ecd5e2381c6e6945af33bb80682036dbe157790a7af97cb232acb89083dea5

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 0.9769

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-free-spins-link-2021-download-game-hack PDF link annotation
- 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-get-free-views-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spin-link-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/robux-gift-card-free_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-com-roblox_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-toys-for-free_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-change-roblox-name-for-free_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/roblox-promo-code-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-hack-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/minecraft-free-ios-no-verification_GM479516143.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/how-to-get-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-spin-and-daily-news-coin-master_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/coin-master-hack-app-for-ios_GM406889139.pdfIn PDF document text
- https://www.jcn.co.uk/uploads/files/files/free-stuff-on-roblox-2021_GM431946152.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_off00004f53.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4F53	24628 bytes
SHA-256: `d8a0e4fbc42450544d9f85abfd158180887fa4b396058a750e2039bc684b1443`
`font_01_sfnt_off0000880e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x880E	2920 bytes
SHA-256: `601c50867a41b9362538ff18e5f9479a0f9badf698aaf1eb7e88469c11719db7`
`font_02_sfnt_off00009228.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9228	19036 bytes
SHA-256: `e0f8480fa6793c91ec869da5acb64ee4c254eeaf21d467085c584c7dc5eb632a`

Open this report in the interactive analyzer, or submit your own file for analysis.