PDF malware analysis — malicious · 75c2beb00fd9c185

MALICIOUS

PDF

33.2 KB Created: 2021-06-18 07:19:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 47d015f30c4989337650af7667c9bbc4 SHA-1: 5356ff28d5ab7286bdc22d6b2b25b9b6e9516207 SHA-256: 75c2beb00fd9c185c4148d74cfea037c84b5192e3b7e45a7f09486e7bf842b41

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9824

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-websites-that-hack-your-account-game-hack PDF link annotation
- https://www.nara.org.uk/uploads/files/files/if-i-uninstall-minecraft-can-i-reinstall-it-for-free_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-pastel-hair-roblox_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-hacks-no-verification_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-free-spins-2021_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/buy-robux-free_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-get-free-robux-hack_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-cheats-for-amazon-fire_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-spin-blogspot_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-that-actually-works-2021_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/roblox-script-hacks_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-minecraft-maps_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/coin-master-facebook-free-spins_GM406889139.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/minecraft-games-free-download_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/how-to-download-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.nara.org.uk/uploads/files/files/free-roblox-loot-bags_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_off00002a09.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2A09	22324 bytes
SHA-256: `43459889eeb89ae6f698ed141cf048318dedb6553500c0b1162c636f96dbb3bc`
`font_01_sfnt_off00005bd9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BD9	19448 bytes
SHA-256: `d04f34582d57dbe0d013c38121013c27e96f483e6c7b3006b280d73e6ac30c31`

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