PDF malware analysis — malicious · d7a247346efe1478

MALICIOUS

PDF

32.5 KB Created: 2021-07-24 01:50:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04

MD5: f563a198b056e0cc594daad226630167 SHA-1: 7c22115c3b3a66ae71fa1af412f9e11d28f79603 SHA-256: d7a247346efe147810f714ecae689a1fa3fc14b7594ffad435d30b1698158772

160 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains multiple links, including one to a known malicious redirector infrastructure at http://netcdn.tw/app/835599320/tiktok-follower-bot-free-game-hack. This redirector is likely used to deliver a second-stage payload or phish for credentials. The presence of a "download button" lure further supports a malicious intent to trick the user into downloading or executing further malicious content.

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/835599320/tiktok-follower-bot-free-game-hack In PDF document text
- https://www.milewood.co.uk/images/minecraft-classic-free_GM479516143.pdfIn PDF document text
- https://www.milewood.co.uk/images/free-spins-for-coin-master-app_GM406889139.pdfIn PDF document text
- https://www.milewood.co.uk/images/how-to-get-minecraft-realms-for-free_GM479516143.pdfIn PDF document text
- https://www.milewood.co.uk/images/roblox-speed-hack_GM431946152.pdfIn PDF document text
- https://www.milewood.co.uk/images/tiktok-like-bot-free_GM835599320.pdfIn PDF document text
- https://www.milewood.co.uk/images/free-minecraft-skins_GM479516143.pdfIn PDF document text
- https://www.milewood.co.uk/images/buy-robux-free_GM431946152.pdfIn PDF document text
- https://www.milewood.co.uk/images/free-robux-exe_GM431946152.pdfIn PDF document text
- https://www.milewood.co.uk/images/is-tiktok-free_GM835599320.pdfIn PDF document text
- https://www.milewood.co.uk/images/how-to-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_off00002b9f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2B9F	22644 bytes
SHA-256: `c308ab604034390a5bdaf3b5edb880c46f7004ef8a6f4a77192db1a462dfc0cf`
`font_01_sfnt_off00005df3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5DF3	17912 bytes
SHA-256: `36efea1239131c533f338518497dff1810050ff8e972c00fb3f35d249e370860`

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