PDF malware analysis — malicious · 760ebdca39d2982f

MALICIOUS

PDF

35.0 KB Created: 2021-07-04 01:33:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-18

MD5: 1a8ba75e5ee9e35da1e918790238d596 SHA-1: 39edf76cbeb1a34a5e2db9b850658dfd0d005834 SHA-256: 760ebdca39d2982fdfcf6f25338f9f162c237d4822a2ea7e4b9585ec35ad43a5

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-hack-mod-apk-game-hack PDF link annotation
- https://silvterie.com.br/images/ckfinder/files/cracking-websites-roblox-hacking-websites_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/how-to-hack-roblox_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/minecraft-windows-10-hack-client-2021_GM479516143.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/comment-cheat-sur-mad-city-roblox_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/real-coin-master-hack_GM406889139.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/can-you-still-get-minecraft-windows-10-for-free_GM479516143.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/how-to-get-a-halo-in-roblox-royale-high-hack_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/coin-master-hacks-for-pet-food_GM406889139.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/oprewards-free-robux_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/free-coin-master-spin-and-coin-link_GM406889139.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/free-hats-roblox-2021-unpatched-urban420netwrok_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/minecraft-pe-apk-download_GM479516143.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/roblox-free-for-tablet_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/roblox-dragon-ball-rage-stats-hack-site-v3rmillionnet_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/hacking-roblox-with-brutus_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/minecraft-noob-vs-pro-vs-hacker-vs-god_GM479516143.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/lazyblox-com-free-robux-ad_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/free-robux-no-download_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/how-to-get-free-robux-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://silvterie.com.br/images/ckfinder/files/kuso-icu-roblox-hack_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_off000032a0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32A0	22896 bytes
SHA-256: `3fe277aed608892319dfd12a93670210d41b667987666ee293f007add05dab30`
`font_01_sfnt_off000065f1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x65F1	18352 bytes
SHA-256: `4bf67e94d7d6dfdea8b6ca4701ccaf1bd5e348753d7f0670dd6fede0c42c998f`

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