PDF malware analysis — malicious · 6db7cafeadf291e3

MALICIOUS

PDF

33.8 KB Created: 2021-07-20 07:05:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 0ad72c9630ce6036f1c16ff3bcf46dbb SHA-1: a6d785d8fb6128e665dfbaa768b9b8dccb2a26b1 SHA-256: 6db7cafeadf291e3e1bdfc05601bbc40f37d01af0a6dc601ecf8aff1a7b12ed6

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors, specifically advertising "free generators" or "game hacks" for popular games like Minecraft and Roblox. The primary lure URL is http://netcdn.tw/app/479516143/how-to-get-minecraft-windows-10-edition-for-free-game-hack. The document body and embedded links suggest a social engineering tactic to trick users into visiting these malicious sites, likely leading to further malware downloads or phishing attempts.

Machine Learning

Nyx PDF Classifier malicious score 0.9946

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/479516143/how-to-get-minecraft-windows-10-edition-for-free-game-hack In PDF document text
- https://europe-upkl.eu/images/tiktok-free-fans_GM835599320.pdfIn PDF document text
- https://europe-upkl.eu/images/how-to-get-free-robux-without-verifying_GM431946152.pdfIn PDF document text
- https://europe-upkl.eu/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://europe-upkl.eu/images/huskybuscom-free-robux_GM431946152.pdfIn PDF document text
- https://europe-upkl.eu/images/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://europe-upkl.eu/images/roblox-help-free-robux_GM431946152.pdfIn PDF document text
- https://europe-upkl.eu/images/how-to-get-minecraft-for-free-on-ps4_GM479516143.pdfIn PDF document text
- https://europe-upkl.eu/images/free-robux-website_GM431946152.pdfIn PDF document text
- https://europe-upkl.eu/images/coin-master-free-coins-and-spins-app_GM406889139.pdfIn PDF document text
- https://europe-upkl.eu/images/www-free-robux_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_off00002f42.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F42	22612 bytes
SHA-256: `a549e95898396f1f71562f94c0737a1c31114cd3d217580a454f67e261056692`
`font_01_sfnt_off00006172.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6172	18524 bytes
SHA-256: `758265ab9626b01b7f82acdeb793963e34ce825989d987f26b8b838bd6c44d94`

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