PDF malware analysis — malicious · 7d8327e9b14d1b7e

MALICIOUS

PDF

34.4 KB Created: 2021-06-20 03:10:16 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 7963a80892c2ca63a171c8298456dae6 SHA-1: e0d1c89a74cbebb1580663e4f947977bda8b3806 SHA-256: 7d8327e9b14d1b7ef9c068e569a3a239380f921c64691fe1ffe273f99c7b4a4d

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic indicating it links to a 'free generator / game hack' lure, designed to trick users into downloading malicious content. The document body and extracted URLs reinforce this by referencing game hacks and templates, with the primary malicious URL being http://netcdn.co/app/431946152/free-clothing-roblox-templates-game-hack. While no scripts were explicitly extracted, the PDF structure and embedded links suggest a potential for JavaScript execution or redirection to a malicious site.

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/free-clothing-roblox-templates-game-hack PDF link annotation
- https://cosmosocean.com.tw/upload/files/jailbreak-script_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-free-spins-and-coins-link-today_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-level-3_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-hack-apk-ios-download_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/roblox-scam_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-hack-coins_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-coin-master-links_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/roblox-promo-codes-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-admin-commands-roblox-download_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-robux-not-fake_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-robux-no-verification-needed_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-spin-free_GM406889139.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/robux-generator-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/roblox-hack-me-robux_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/roblox-premium-free_GM431946152.pdfIn PDF document text
- https://cosmosocean.com.tw/upload/files/coin-master-hack-spin-link_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
`font_00_sfnt_off0000308d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x308D	21744 bytes
SHA-256: `fdf1c0b407b64a9e52371ee788bfbf45391cb9a17385338e1024cd0f0ee44871`
`font_01_sfnt_off0000603a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x603A	19476 bytes
SHA-256: `0655b418f21976b727817e08adfefb82b8f00a95fb9f53b514541ca5f0c7ae25`

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