PDF malware analysis — malicious · 3034476f16fe699f

MALICIOUS

PDF

45.8 KB Created: 2021-06-03 22:04:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 9fe0abaf7d777309500798f814209579 SHA-1: 1be8b1a576f5c71b972cea12a728aa2534e2a739 SHA-256: 3034476f16fe699f6f6db5d153caa5078e072702eeeb8540186b403024d9b111

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-risk heuristic firing for linking to a 'free generator / game hack' redirector, specifically pointing to a URL associated with 'free Robux'. The document body, though heavily obfuscated, contains references to the same URL. This indicates a social engineering tactic to lure users to a potentially malicious website.

Machine Learning

Nyx PDF Classifier malicious score 0.9864

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 https://netcdn.online/app/431946152/free-robux-sites-that-work-game-hack PDF link annotation
- https://www.bridalguide.com/sites/default/files/files/roblox-free-hair-boy_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/my-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/wurst-client-18-9_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-robux-place_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-spins-coin-master-links-blogspot_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-followers-for-tiktok_GM835599320.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-minecraft-account-list_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/moonactive-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/roblox-games-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/play-minecraft-free-online-no-download_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/minecraft-wurst-hacked-client_GM479516143.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/coin-master-free-spins-fb-champion_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/roblox-play-now-for-free_GM431946152.pdfIn PDF document text
- https://www.bridalguide.com/sites/default/files/files/how-to-get-minecraft-dungeons-for-free_GM479516143.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
`stream_004_off00005407.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x5407	25532 bytes
SHA-256: `9a0f428b044ee145eccf419d7a8fada561a9bbf1eece5200262e1e915c44f9f2`
`font_01_sfnt_off00008e65.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8E65	19000 bytes
SHA-256: `c0bc6bb0706fab35ff455fc4816471a1ab7f6ae4486f691ef98043b3efa3f18d`

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