PDF malware analysis — malicious · 4e335b163f407ffd

MALICIOUS

PDF

45.5 KB Created: 2021-05-12 17:04:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-19

MD5: 93740f29b29706daec4d14c117f13f5c SHA-1: e1383c21458b251a29b7e46473e28fdfeaad9992 SHA-256: 4e335b163f407ffd2eef793b7d9fbae0b0e800b96990332da8934609a8b3ef18

160 Risk Score

Machine Learning

Nyx PDF Classifier malicious score 0.9507

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/cheats-coin-master-free-game-hack In PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-free-blogspot_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-spin-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/if-you-delete-minecraft-can-you-redownload-it-for-free_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/minecraft-on-computer-free_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/robux-games_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-free-spins-link-october-2021_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/create-minecraft-server-free_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-promo-codes-for-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/freerobux-co_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-coins-coin-master-link_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/free-spins-october-28-2021-coin-master_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/earnrobux_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/unlimited-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/roblox-report-hacker_GM431946152.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-free-coins-link-2021_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/coin-master-free-spins-link-june-2021_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/minecraft-java-free-account_GM479516143.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/daily-spin_GM406889139.pdfIn PDF document text
- https://www.wessexandrology.com/uploads/files/files/minecraft-free-apk_GM479516143.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off00004be0.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4BE0	24812 bytes
SHA-256: `d4a55cd1b290ce1669904f490ee0f978f12396402e37a2011df00d19d57b4b89`
`font_01_sfnt_off000084dd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x84DD	3380 bytes
SHA-256: `1dd933c112880b232546f3aab6a17784a8f412d39fd551cc6eb31c5a04c3ce57`
`font_02_sfnt_off000090c5.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x90C5	17876 bytes
SHA-256: `d474ea2552ad4ab61fecc332af7923c97f8bd7d49077a14e922627460bfe2888`

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