PDF malware analysis — malicious · 0f29c0438cf20c69

MALICIOUS

PDF

34.1 KB Created: 2021-07-09 02:06:47 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: ee4a590af19aa82e6a0a1941e40f7fe2 SHA-1: f9e4d55036761830381d0e10ca0de66d1939aa48 SHA-256: 0f29c0438cf20c69269b6994e593642daad85e1065c15cd3eb7dd0d7394e5303

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 0.9980

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/406889139/coin-master-game-free-spin-game-hack PDF link annotation
- http://studio-dentistico-fiume.com/files/coin-master-daily-link_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/coin-master-hack-club_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/roblox-dungeon-quest-free-stats-reset_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/cheat-engine-roblox-jailbreak-hack_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/games-like-coin-master-for-free_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/free-free-roblox-gift-cards_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/free-coin-master-spins-no-human-verification_GM406889139.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/microsoft-store-robux_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/roblox-free-robux-hack_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/snow-shoveling-hacks-roblox_GM431946152.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/how-to-get-free-gold-cards-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/minecraft-free-download-chromebook_GM479516143.pdfIn PDF document text
- http://studio-dentistico-fiume.com/files/coinmaster_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/coin-master-mod-apk-latest-hack-with-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://www.studio-dentistico-fiume.com/files/coin-master-daily-free-spins-link-2021_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
`font_00_sfnt_off0000311f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x311F	22056 bytes
SHA-256: `073e4d35036aabead3b5357b7165286affefa5c5b2d8a26ca5f7baa75d672569`
`font_01_sfnt_off00006227.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6227	18432 bytes
SHA-256: `a81ce85ab1d38efd73dc51b1055ee083833faa1669764d0dac9c9c7e0fbc8d78`

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