PDF malware analysis — malicious · 07a182dd887a6e91

MALICIOUS

PDF

38.1 KB Created: 2021-07-05 07:43:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 1fd56be0fd6e03c1090ea6cfd276f3d7 SHA-1: 50d1c22bbd53fcf2c2e5c02e7fa73a202e8e4d32 SHA-256: 07a182dd887a6e91c815749fe32fbf1f5634b8cf270aa696391fdf618a7d3342

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 0.9985

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/archery-master-3d-unlimited-coins-hack-game-hack PDF link annotation
- https://diendientuvn.com/public/upload/files/coin-master-claim-spins_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/wwwcoin-master-hack-game-download_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/cosas-free-en-roblox_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-to-hack-into-someones-roblox-account_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/coin-master-hack-version-download-2021-ios_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/roblox-akaunts-free_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-robux-games_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/fluxx-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/roblox-apple-store-tycoon-free-money_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-tiktok-followers-no-human-verification-or-survey-2021_GM835599320.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/downloadable-roblox-hacks_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/roblox-big-head-hack_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/banning-hacks-for-khols-admin-house-roblox_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/roblox-free-login_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-download-coin-master_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-to-use-chatbot-hack-roblox_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/robux-hack-no-verification_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/promo-code-free-robux_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-to-get-free-robux-no-human-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_off00003b52.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3B52	23076 bytes
SHA-256: `9caa9955a6936f8de1918afb59873f11d9ffb8b39039f02663c2f90e161f13dd`
`font_01_sfnt_off00006f37.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6F37	19384 bytes
SHA-256: `9b75674c05e91ed600c295d2e6b126a9e7055cd0ef585cb1713ecaa0414166d3`

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