PDF malware analysis — malicious · 7a4fd35d76db400c

MALICIOUS

PDF

36.2 KB Created: 2021-06-25 01:28:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 18bb4ae6b5ceddcbcfff73188639f53e SHA-1: df07cf6b13a57b81a48c8b9b9b77291bb4894760 SHA-256: 7a4fd35d76db400c66a07333906a5327cdd3dc69cd535aa0fd7564e9c81ea004

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.co/app/479516143/play-minecraft-free-online-no-download-game-hack PDF link annotation
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/how-to-get-free-views-on-tiktok_GM835599320.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-hack-tool_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-coins-coin-master-link-today_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/roblox-hack-tool_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/minecraft-online-free-download_GM479516143.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-roblox-hacks-jailbreak_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/instantrobux_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-spin-hack_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/2021-roblox-hack-client_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-roblox-harley-quinn_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/robuxy-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/coin-master-redeem-code-free_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/easy-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-coin-and-spin-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-coins-and-spins-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-coins-and-spins-coin-master_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/free-spins-and-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.boneyhayschool.co.uk/admin/ckfinder/userfiles/files/easy-coin-master-hack-without-verification_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
`font_00_sfnt_off0000367f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x367F	22676 bytes
SHA-256: `0e721b2d7b83dd1f84e87a075b124346038bd8f6e017a06f2e9988969ca12297`
`font_01_sfnt_off00006901.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6901	18912 bytes
SHA-256: `346cb213616b37d36555fcb51ba59473eedb80dae61f7accaa613951a8f90450`

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