PDF malware analysis — malicious · 5c2e4dc6b0c22d7d

MALICIOUS

PDF

37.4 KB Created: 2021-07-04 08:01:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 936952c52a1895f09f585d27ee1786cd SHA-1: 63750cb31108dbf6d711d4e87374b554bef68dc1 SHA-256: 5c2e4dc6b0c22d7d78f74ed8e7fcc5105518d8473e9c5fb366c8bf3b233c72b3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure related to 'free Robux' and 'game hacks', directly linking to a suspicious URL. This suggests a phishing or scam attempt designed to redirect users to a site that likely hosts further malicious content or exploits. The ML classifier strongly flagged this PDF as malicious, supporting the observed lure and URL.

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.tw/app/431946152/free-robux-no-human-verification-or-survey-or-download-game-hack PDF link annotation
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-upload-multiple-music-to-roblox-for-free-2021_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-pins_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/caught-my-mom-cheating-in-roblox_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-get-minecraft-for-free-on-mac_GM479516143.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/hwo-to-hack-roblox-with-salayah_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/sript-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/list-of-free-items-on-roblox_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-do-you-earn-free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-do-u-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-jailbreak-hack-2021-april_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/robux-gratis-no-hack_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-do-you-get-free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/coin-master-hack-tool-v1-9-download-free_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/minecraft-free-play-now_GM479516143.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/how-to-hack-all-the-cargo-crates-in-roblox_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/roblox-free-robux-website_GM431946152.pdfIn PDF document text
- https://www.ati-gulf.com/uploaded_files/userfiles/files/free-robux-com_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_off0000357b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x357B	23292 bytes
SHA-256: `0ff1419cc1346f65a0c80900ed9e4a622e150538e7a7e02762db21dc9193b6fd`
`font_01_sfnt_off000069eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x69EB	20208 bytes
SHA-256: `76b0661ef1631e3ff5be93da9b7a1da7a58595af6d3396f266def641a9cc9522`

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