PDF malware analysis — malicious · 71eeebc6841f2809

MALICIOUS

PDF

34.6 KB Created: 2021-07-06 07:19:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 06e2a7f949f5d33207efcb2853aab69a SHA-1: d577cbd225b00c0972ada459b34e3089379e3755 SHA-256: 71eeebc6841f280929014c341dea20e64854ac53f18f110ecaa6a8f410069e05

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure to trick users into clicking on a link that leads to a malicious redirector. The document body and embedded links promote 'game hacks' and 'free currency' for popular games, aiming to exploit user interest. The primary link, http://netcdn.tw/app/406889139/free-coins-coin-master-today-game-hack, is identified as a known malicious redirector, likely serving as a gateway to further malicious content or malware.

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/406889139/free-coins-coin-master-today-game-hack In PDF document text
- https://www.sarsen.net/uploads/files/files/free-spins-on-coin-master-cheat_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-hack-robux-roblox_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-goku-clothes-roblox_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-play-online-free_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-tiktok-video_GM835599320.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/roblox-free-clothes-codes_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-hack-roblox-no-downloads-2021_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/sites-for-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-get-robux-clother-for-free_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/hack-minecraft_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-hack-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/minecraft-bedrock-edition-hacks_GM479516143.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/coin-master-hack-software_GM406889139.pdfIn PDF document text
- https://www.sarsen.net/uploads/files/files/how-to-change-your-username-in-roblox-for-free-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
`stream_002_off00002ff9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2FF9	23140 bytes
SHA-256: `45ba4890bc065726328115a6e6397f773a48fa0ffc8b28832b27d69ad86a1d50`
`font_01_sfnt_off0000643b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x643B	18352 bytes
SHA-256: `a5bd84cc4c7de1c91a362ad902b00f54e7cd5c4c8ea3a16876296fc55094fa11`

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