PDF malware analysis — malicious · c0636ba8b728be2c

MALICIOUS

PDF

42.4 KB Created: 2021-05-17 09:02:23 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: e3aa3982530c807697452f97db197403 SHA-1: b9106260d04ff934b41b753c19489a9a5bcb1ff5 SHA-256: c0636ba8b728be2cb5b35800130869dce3dd02ab651f47adb9ada0a7a6a809de

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to malicious redirectors, specifically advertising 'free generator / game hack' lures. These links likely lead to further malicious content or phishing pages designed to trick users into downloading malware or revealing sensitive information. The ML classifier also strongly indicated maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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 https://netcdn.xyz/app/406889139/2021-free-spins-coin-master-game-hack In PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-freebies-2021_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/best-minecraft-hacked-client-2021_GM479516143.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/get-free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/mistplay-robux_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-unlimited-spins-hack_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-robux-games-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-email-rewards_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/scaffold-minecraft-hack_GM479516143.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/roblox-studio-free-robux_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/best-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-roblox-accessories_GM431946152.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/como-hackear-el-juego-coin-master_GM406889139.pdfIn PDF document text
- https://nhaphangjapan.vn/public/upload/files/mcpe-master-hack-unlimited-coins-latest-version_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
`stream_003_off00004941.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4941	25032 bytes
SHA-256: `fd0933e3cdb05e2491e36666337140bfd7454884b4ade941dc9246da6a950504`
`font_01_sfnt_off00008355.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8355	18288 bytes
SHA-256: `d5a46c40ddaffffdec7b194e78d64597afed9f46b5e12e45e50a00bb771aa4a6`

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