PDF malware analysis — malicious · 291e6a44a38a7aee

MALICIOUS

PDF

33.2 KB Created: 2021-06-21 03:12:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: e5d03e328c59f012f3dcabebf0ffb729 SHA-1: 093574f1986323a4278aebb91ac938e3050f893f SHA-256: 291e6a44a38a7aee698df0f9ba088ae4d717eac3c10fd1e97fe34d8d82932726

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple embedded URLs and lures users with the promise of free game-related items, such as 'Free Robux'. The primary URL, http://netcdn.co/app/431946152/free-robux-rixty-game-hack, is identified as a malicious redirector. This suggests the document is designed to trick users into visiting potentially harmful websites, likely for credential harvesting or further malware distribution.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector critical 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. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK

PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
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
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-robux-rixty-game-hack In PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-game-hacking-tricks_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/lumber-tycoon-2-cheats-roblox_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-views-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-free_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-tiktok-likes-and-followers_GM835599320.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/template-roblox-shirt-free-shipping_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/how-do-i-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/oprewards-login_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-minecraft-codes-2021_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/how-to-cheat-in-miner-haven-roblox_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-robux-live_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-apk-mods-coin-master_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/is-minecraft-education-edition-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
`font_00_sfnt_off00002e30.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2E30	21232 bytes
SHA-256: `16e1df54739d436e350fe33b016547432589c0b7067173f703f9051c56013e00`
`font_01_sfnt_off00005c82.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C82	19120 bytes
SHA-256: `bdd638cd22087247df8c5836ed512263cb432ea758ae18df5afb1767acf96530`

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