PDF malware analysis — malicious · 929b86fa85c2944d

MALICIOUS

PDF

34.8 KB Created: 2021-07-07 06:40:58 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 74e06043b90e0d4fe497e4c2516137c8 SHA-1: 6abc1b374d24c02999174ec7cbf7eb0c1de88875 SHA-256: 929b86fa85c2944d2aa3378fed90f0110eb507b1ac8b6a3a21762b010c9cdc01

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-spins-hack-2021-game-hack PDF link annotation
- https://vierabyragazze.com/upload/files/free-robux-websites-that-actually-work_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/rbx-com_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/minecraft-pocket-apk_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-free-daily-spins_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/bypass-roblox-cheat-engine-detection_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-invite-friends-hack_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/oprewards-com-roblox_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/tiktok-follower-bot-free_GM835599320.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/como-conseguir-monedas-infinitas-y-tiradas-de-coin-master-hack_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coins-master-hack_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/robloxfun-com-robux_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/robux-hack-2021-on-laptop_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/client-cheat-roblox_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-bots-allowed_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-daily-free-spins-today_GM406889139.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-minecraft-com_GM479516143.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/free-robux-website_GM431946152.pdfIn PDF document text
- https://vierabyragazze.com/upload/files/coin-master-hack-programmers_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
`stream_002_off00002e6e.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x2E6E	23880 bytes
SHA-256: `ef219268c06de4e437b68cbacbe518cca124f380f4de0d7d4e613b0bf203e51e`
`font_01_sfnt_off00006450.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6450	18580 bytes
SHA-256: `63d6adc7563b485c3174704ac8a7a6a262dc9bf1deaf17837918a23c7f43ebb5`

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