PDF malware analysis — malicious · ac81ec3a6733512d

MALICIOUS

PDF

35.7 KB Created: 2021-07-09 08:14:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 65af71693c01b921366a43a5b8c84eec SHA-1: 21a7c7ec113c5629136be8476c77cfdfcd48e3f3 SHA-256: ac81ec3a6733512d4daf647570376ade84195964e056328b06c8b7d12f19aa31

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links to a known malicious redirector infrastructure, specifically designed to lure users with promises of game hacks and currency generators for popular games like Roblox and Minecraft. The primary malicious URL identified is http://netcdn.tw/app/431946152/roblox-robux-generator-http-freerobuxgenerator-xyz-game-hack. The document body and heuristics confirm the intent to redirect users to potentially harmful content, likely for credential harvesting or further malware delivery.

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.tw/app/431946152/roblox-robux-generator-http-freerobuxgenerator-xyz-game-hack In PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/minecraft-free-play-no-download_GM479516143.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-admin-hack-any-server-unpached_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/v3rmillion-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-cheat-nocliping_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/ive-been-hacked-on-roblox_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/coin-master-com_GM406889139.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/change-roblox-username-for-free_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-jailbreak-hack-download-mobile_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-roblox-shirts-templates_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-hack-chrome_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-atack-on-titan-hack_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-links-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-com-online-free_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/roblox-free-vip-server-ro-ghoul_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-spin-coin-master-app-download_GM406889139.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/hacks-para-roblox-tycoon_GM431946152.pdfIn PDF document text
- https://e-learningmin10jakarta.com/__statics/gudangsoal/files/free-robux-no-verification-at-all_GM431946152.pdfIn PDF document text
- https://www.e-learningmin10jakarta.com/__statics/gudangsoal/files/free-promocodes-roblox-october-2021_GM431946152.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_off000032f2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32F2	22668 bytes
SHA-256: `e236303ba7987b7427798ca3d63d3536830f3f8480da37513a0459d43197e2e8`
`font_01_sfnt_off000065cc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65CC	19332 bytes
SHA-256: `3847149b477a4e2ba4f9248fde2909885d2401f9abbab2c284e38936ec39ea88`

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