PDF malware analysis — malicious · b0c6dde9c0d2175a

MALICIOUS

PDF

35.9 KB Created: 2021-07-08 15:01:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: cd6e8b25bd6631a8d73a885acf30ceda SHA-1: 48a4d0c5ad2a0beb18a9775d39304a10d74f4980 SHA-256: b0c6dde9c0d2175a2f1f45d85b1b3f4aec57607a3fe34391b04386b8e324579f

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/como-hackear-coin-master-2021-espaol-game-hack PDF link annotation
- https://dolphintour.vn/images/uploadsfiles/coin-master-daily-rewards-link_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-robux-generator-tool_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/www-rbxhut-com_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/minecraft-anarchy-server-no-hacks_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-hack-roblox-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-noclip-hack-no-cheat-engine_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-get-bloxburg-for-free-on-roblox_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-do-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-roblox-cards-pin-number-2021_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-hack-robux-gratis_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-cheat-engine-hacks-2021_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-coin-master-links_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/get-free-robux-generator_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-25-spins-coin-master-links_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-generator-no-human-verification-2021-pc_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-spin-sites_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/hack-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-spins-haktuts_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_off000033f9.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x33F9	23440 bytes
SHA-256: `ec94b841527024e97f0e232ed2f3a0fe9d51b923b945287bb3689e96ef7beca3`
`font_01_sfnt_off000067da.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x67DA	18916 bytes
SHA-256: `022fdbbbf18e3894d325d1979130fd1bca618ff86b17635f3537e40c663d359d`

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