PDF malware analysis — malicious · 354d31383009f822

MALICIOUS

PDF

41.6 KB Created: 2021-05-14 11:18:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 3dc36f501d2cfa3a6617bc82434c1752 SHA-1: 8c1fc8d484c6d52be7a1f6f1d251ea5fcbd8c648 SHA-256: 354d31383009f822cbf821d774e53749de4209f65625f5a8a9a831c2615ef01f

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 0.9971

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.xyz/app/406889139/free-spins-coin-master-ios-links-game-hack PDF link annotation
- http://beautyforyou.fr/images/coin-master-hack-club_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/how-to-use-redstone_GM479516143.pdfIn PDF document text
- http://beautyforyou.fr/images/robux-websites-2021_GM431946152.pdfIn PDF document text
- http://beautyforyou.fr/images/free-minecraft-gift-card_GM479516143.pdfIn PDF document text
- http://beautyforyou.fr/images/coins-master-hacks_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/coin-master-free-spins-link-no-verification-2021_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/coin-master-hacks-for-free-spins_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/coin-master-coins-free_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/free-robux-no-offers_GM431946152.pdfIn PDF document text
- http://beautyforyou.fr/images/how-to-free-robux_GM431946152.pdfIn PDF document text
- http://beautyforyou.fr/images/roblox-old-avatar_GM431946152.pdfIn PDF document text
- http://beautyforyou.fr/images/coin-master-free-spins-promo-code_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- http://beautyforyou.fr/images/bux-free-robux_GM431946152.pdfIn PDF document text
- http://beautyforyou.fr/images/free-cheat-codes-for-coin-master_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/how-to-get-free-robux-without-verifying-2021_GM431946152.pdfIn PDF document text
- http://beautyforyou.fr/images/coin-master-free-food-for-pet_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://beautyforyou.fr/images/minecraft-free-download-mobile_GM479516143.pdfIn PDF document text
- http://beautyforyou.fr/images/hack-free-spin-coin-master_GM406889139.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_003_off000047e2.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47E2	24752 bytes
SHA-256: `e768ac68b9c6618a62992bf5e9fb0e1b4dd3bc301f10a8c66dc290fc51b6357d`
`font_01_sfnt_off000080db.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80DB	18056 bytes
SHA-256: `00725aa741ebcaa50a6a2e905640ddff238fc768dd22f8bd491d0bb4569388e9`

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