PDF malware analysis — malicious · af7b748e08a6296e

MALICIOUS

PDF

35.8 KB Created: 2021-07-04 10:46:24 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 5d208effbc430797a3bc5a6893c2eb9d SHA-1: 835e6c61a1fa8b9105b4ff0b572d5af61fbd70b8 SHA-256: af7b748e08a6296e7b13a7b8f6ee7cd3fe4b174bee792ce4f256a10a75be4a32

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/479516143/how-to-get-minecraft-windows-10-for-free-with-java-game-hack PDF link annotation
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-island-in-roblox-bubble-gum-simulator_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/how-to-get-1-million-robux-hack_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-without-verification-or-survey_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/minecraft-free-download_GM479516143.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/roblox-legendary-football-vip-server-free-2021_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-2021-new_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-knife-code-assasins-roblox_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/rblx-city-free-robux_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-no-survey-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/pokemon-go-free-meltan-box_GM1094591345.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/roblox-games-with-free-boombox_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/roblox-free-clothes-generator_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/roblox-wall-hack-jailbreak_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/black-jacket-with-blue-shirt-roblox-free_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-new-cards-hack_GM406889139.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/roblox-one-piece-ocean-voyage-hack_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/what-is-robux-in-roblox_GM431946152.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/minecraft-education-edition-free_GM479516143.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- https://www.portalgrandeponto.com.br/public/uploads/galerias/ckeditor/files/free-robux-hacks-no-verification_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_off0000352a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x352A	22328 bytes
SHA-256: `3893519c4c43eeddbd70d932b49ca7bd03c87a14a182e7f620a1d4583d3f83ef`
`font_01_sfnt_off00006662.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6662	19256 bytes
SHA-256: `705954b0752298f81a5f04650af255d7014e85ab327a501377ac0e07f74b9918`

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