PDF malware analysis — malicious · 235e85ed510fc25e

MALICIOUS

PDF

33.9 KB Created: 2021-07-07 18:43:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 3339ae651f6cf993353d8a038959dca9 SHA-1: 977c4a3fa8b6130c83e18fcc79abd08ccadfdd3d SHA-256: 235e85ed510fc25e0174768725adcc2a7466bc6ae9d2de6f8cecd48c36d0e638

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/431946152/free-robux-obby-2021-game-hack PDF link annotation
- http://zagi.hr/files/www-claim-gg-to-earn-free-robux_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/roblox-free-robux-com_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/roblox-free-executor_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/inyector-de-hacks-para-roblox_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/coin-master-free-spin-app-iphone_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/roblox-free-robux_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/free-robux-no-surveys-or-offers_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/safe-mac-roblox-auto-clicker-free_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/robux-quiz-free_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.zagi.hr/files/coin-free-spin_GM406889139.pdfIn PDF document text
- http://zagi.hr/files/hack-tool-robux_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/roblox-hacking-website_GM431946152.pdfIn PDF document text
- https://www.zagi.hr/files/free-robux-hack-no-confusion_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/twitter-coin-master-free-spins_GM406889139.pdfIn PDF document text
- http://zagi.hr/files/today-free-spin-coin-master_GM406889139.pdfIn PDF document text
- http://zagi.hr/files/robux-hack-me_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/how-to-get-free-tiktok-fans_GM835599320.pdfIn PDF document text
- https://www.zagi.hr/files/free-robux-codes-2021_GM431946152.pdfIn PDF document text
- http://zagi.hr/files/roblox-free-robux-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_off00002d2d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2D2D	22168 bytes
SHA-256: `c26554d2c5c8366c7ad69cd18722f7b3162926fd689b3b84589fc4ec8e0b1204`
`font_01_sfnt_off00005e68.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E68	19300 bytes
SHA-256: `b480e57f7d5b556cc4767b9b3cb0f03098c0ecbb180f8a5a4d5272ae73f4a644`

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