PDF malware analysis — malicious · 00a450c06d77c1fe

MALICIOUS

PDF

41.4 KB Created: 2021-05-19 10:37:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 9f9979e815c5017f43aafc800b577848 SHA-1: c7113d094bfe0aa89a27037ba42a1df58ee2cdb2 SHA-256: 00a450c06d77c1fed288ef262703278ce380ecb7adc119f11c2f7415336068cc

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 0.9971

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 https://netcdn.xyz/app/406889139/www-coin-master-game-hack PDF link annotation
- https://www.toyogas.com.tw/upload/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-download_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-people-girl_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/roblox-robux-hack_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/hack-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-coins-free_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-shield-hack_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-daily-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-hacks-no-verification_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/toolbox-for-minecraft-ios_GM479516143.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/free-robux-no-survey-or-human-verification_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/blogspot-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/offers-to-complete-and-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/robux-cheat_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coinmasterfreespinlink_GM406889139.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
- https://www.toyogas.com.tw/upload/files/coin-master-free-coins-and-spins-app_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_003_off000048eb.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48EB	24448 bytes
SHA-256: `595aecd6d20e99988136646ad7ca60fc74d984f86c3bb44f5d4d5b1efb7e39eb`
`font_01_sfnt_off00008035.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8035	17908 bytes
SHA-256: `6f31903e710e2f0fcec5102e216c8b2505ef46bc9ceeb62cc07342564c5c8e6e`

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