PDF malware analysis — malicious · 7dfe88710172d9ab

MALICIOUS

PDF

35.2 KB Created: 2021-07-01 16:21:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: c383c401878a40db3f4ec8f25a93c193 SHA-1: 2720c995f850fb635b3b476cb736d73b924e6dd7 SHA-256: 7dfe88710172d9ab73410303754103e9ca4ea5e6509bc94f7b5fdf0a077d28e4

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains multiple links that redirect to malicious infrastructure, specifically advertising game hacks and generators. The document body and heuristics indicate a lure to download or access potentially unwanted or malicious content. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

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/sk8r-roblox-hack-game-hack In PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/roblox-build-a-boat-for-treasure-new-hack-unlimited-money_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/how-to-get-a-free-minecraft-account_GM479516143.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-tix-roblox-2021_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/jailbreak-cheat-codes-roblox_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/join-for-free-robux_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/how-to-hack-vehicle-simulator-roblox_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-robux-books_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-roblox-codes-for-robux-bc_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-key-cards-roblox_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/denis-daily-robux-hack_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/coin-master-hack-activegamer_GM406889139.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-coin-master-hack-no-verification_GM406889139.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/meepcity-roblox-hack-menu_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-robux-birthday-hack_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/roblox-robux-hack-generator_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-spin-coin-master-link-today_GM406889139.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-robux-human-verification_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/free-injecters-roblox_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/thomas-roblox-free-games_GM431946152.pdfIn PDF document text
- http://www.nguyentraiedu.vn/cms/public/upload/files/minecraft-bedrock-free-download_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_off000032b6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32B6	22476 bytes
SHA-256: `684be284165920636b7a9107e4615b8bf60d2012c4c52b99fe9ab19304353e2f`
`font_01_sfnt_off000064d8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64D8	18864 bytes
SHA-256: `2459a3634b4ddcf6ce94227a962354cb190f1020177b78d9463e56711ddbfb6b`

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