PDF malware analysis — malicious · 7823f836d2ec831f

MALICIOUS

PDF

33.3 KB Created: 2021-07-05 11:57:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-16

MD5: 2a33efd376d6f25036e4732fcc0ef290 SHA-1: a2d4ce12157811220a2f2f7d726b0bfc75132646 SHA-256: 7823f836d2ec831fb2ced4458c125695452c1af6b0cc87d77b3b3a2402f403d4

160 Risk Score

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/get-free-coin-master-coins-game-hack In PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-stuff-in-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/can-you-give-me-free-robux_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/how-to-make-a-minecraft-bedrock-server-for-free_GM479516143.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/how-to-get-free-robux-fbi-open-up_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/hack-para-roblox-2021-julio_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hack-version_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/minecraft-free-download-2021_GM479516143.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/se-puede-hackear-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/60-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-daily-free-spins-blogspot_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/22-500-robux-hack_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-robux-generator-no-ads_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hack-tool-access-online-generator_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-spin-today-coin-master_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/free-minecraft-packs_GM479516143.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/minecraft-hack-ios_GM479516143.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/robux-gratis-2021-hack_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-master-hack-version-33-2_GM406889139.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/room-cheat-codes-roblox_GM431946152.pdfIn PDF document text
- https://www.alamac-kitbag.co.uk/uploads/files/files/coin-spin-link_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
`font_00_sfnt_off00002f22.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F22	22204 bytes
SHA-256: `10ec185396a9a24c8f581a1668b1e76394314282ee865d9937fe1a932bdfc4fc`
`font_01_sfnt_off00006044.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6044	17996 bytes
SHA-256: `2218a26fc20f3381b15a6c1d56b0fba8ed575611d7fe9869e239c8e40abe84e3`

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