PDF malware analysis — malicious · addfc2b9e0809ed8

MALICIOUS

PDF

33.0 KB Created: 2021-07-20 12:42:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: 2c57be9cd89a81df2b5c3260dc61ce3a SHA-1: d110c47b555329bd4c748e4f4c09a06d63956af5 SHA-256: addfc2b9e0809ed840d21878a08fa5f5a5e3bbbcacdd152d718e7d13a6499bd2

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

This PDF document contains multiple links, including one to http://netcdn.tw/app/431946152/how-to-get-free-robux-on-ipad-game-hack, which is identified as a malicious redirector. The document body and heuristics suggest a lure for free game-related items, likely leading to a phishing or malware download site. The ML classifier strongly indicates maliciousness.

Machine Learning

Nyx PDF Classifier malicious score 0.9900

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/431946152/how-to-get-free-robux-on-ipad-game-hack In PDF document text
- https://dirigentigiustizia.it/images/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- https://dirigentigiustizia.it/images/get-free-robux-com_GM431946152.pdfIn PDF document text
- https://dirigentigiustizia.it/images/www-free-robux_GM431946152.pdfIn PDF document text
- https://dirigentigiustizia.it/images/free-minecraft-resource-packs_GM479516143.pdfIn PDF document text
- https://dirigentigiustizia.it/images/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
- https://dirigentigiustizia.it/images/coin-master-free-spins-link-today-instagram_GM406889139.pdfIn PDF document text
- https://dirigentigiustizia.it/images/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://dirigentigiustizia.it/images/free-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://dirigentigiustizia.it/images/free-tiktok-likes-no-human-verification-or-downloading-apps_GM835599320.pdfIn PDF document text
- https://dirigentigiustizia.it/images/bloxpink-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_off00002a82.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A82	22368 bytes
SHA-256: `431d472558220aa3c1730d47012312442e4a36666153ef87a91928ed15abd678`
`font_01_sfnt_off00005c51.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5C51	19044 bytes
SHA-256: `fc40f46b89ee5eb81c4a3ee8e07ce7b89220573e4da3f1efd7ddd3b0f2f06e4f`

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