PDF malware analysis — malicious · 975f285344fa5575

MALICIOUS

PDF

34.8 KB Created: 2021-07-09 23:23:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: b3fe73a3f473b599ca05e0f8bef34bc9 SHA-1: 54c417cbf82187cb4e7a7c7adde9ddf1bab03c9e SHA-256: 975f285344fa557508ab50718fc102e9b4b0cb80c8b27d2bb5bc5ebdafd952bb

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-codes-2021-game-hack PDF link annotation
- https://hotelyetihome.com/userfiles/files/free-links-for-coin-master_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-roblox-accounts-20212021_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/how-to-make-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/robux-now_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-robux-no-human-verification-or-survey-2021-safe-website_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-roblox-hack-us_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/flip-master-coins-hack_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/get-free-robux-without-human-verification_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-coins-coin-master_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-hack-uk_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coun-master_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/50-free-tiktok-likes_GM835599320.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/claimrobux-net_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-robux-no-verify-or-password-needed_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/best-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/how-to-hack-coin-master-game-2021_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/roblox-fun-com-free-robux_GM431946152.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/coin-master-online-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://hotelyetihome.com/userfiles/files/free-roblox-exploits_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_off00002ff9.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2FF9	22452 bytes
SHA-256: `5599598cad371f8af300e46b1cbf4cc18e23babf4d4bb66b54fbb9b699353c1f`
`font_01_sfnt_off00006240.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6240	19292 bytes
SHA-256: `a06e109f4742255b3e3bb25118cfd4c6c94882922bdfaa475a115917b157a644`

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