PDF malware analysis — malicious · f53efe4e5f1b07f4

MALICIOUS

PDF

35.3 KB Created: 2021-06-19 10:35:21 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27

MD5: dfe03547dec9936218326c3bb3491dbe SHA-1: ee83d53e58e7215be9b6994c4f9a4cf1a64270af SHA-256: f53efe4e5f1b07f40442ccc4a4ca4ad0e5553411df41f7f8ebb1614b639ce53f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-confidence heuristic firing for a 'free generator / game hack' lure, directing users to a suspicious URL. The document body explicitly mentions 'Free Robux No Downloads 2021' and repeats the malicious URL, reinforcing the social engineering aspect. While no scripts were extracted, the PDF structure and embedded URI strongly suggest a phishing or malware distribution attempt.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

PDF links to a 'free generator / game hack' redirector high 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.
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
External URI info PDF_URI

PDF contains an external URL action
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.co/app/431946152/free-robux-no-downloads-2021-game-hack PDF link annotation
- https://inspiration-modellbau.de/images/how-to-download-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-get-minecraft-on-chromebook-for-free_GM479516143.pdfIn PDF document text
- https://inspiration-modellbau.de/images/hacker-shirt-for-free-roblox_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-roblox-avatar-gear_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-catalog-free-stuff_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-cheat-for-robux_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-robux-websites-that-actually-work-2021_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/real-free-robux-games_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-creeper-chaos-hack_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/coin-master-hack-unlimited-spins_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-make-my-own-coin-master-cards-hack_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-get-roblox-bc-for-free_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-medieval-warfare-reforged-hack_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/bighead-tshirt-roblox-free_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/roblox-what-is-free_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/how-to-download-hacks-for-roblox_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-anime-roblox-shirt_GM431946152.pdfIn PDF document text
- https://inspiration-modellbau.de/images/free-coin-master-spin-app_GM406889139.pdfIn PDF document text
- https://inspiration-modellbau.de/images/best-way-to-get-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_off0000307b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x307B	22544 bytes
SHA-256: `9761b535d9f0a07c0d7bc11302c50a8b3fd9386ada7ea0de475af9e8b4151eda`
`font_01_sfnt_off00006302.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6302	19696 bytes
SHA-256: `ea642c25e53b67988e598f8768d868058e4c5b779fa8247ba33d660009ee5e2d`

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