PDF malware analysis — malicious · 8b002ddf132d35c0

MALICIOUS

PDF

43.5 KB Created: 2021-05-11 15:30:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: cc6121d89b0f32c047cff78a1fe02a36 SHA-1: d7622170e80f0c4ebba0e707784489e66bb9a129 SHA-256: 8b002ddf132d35c020a5b31bc3ed6b7b45e2ccdeaf53e1cd6ba372ec41cdef1b

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 0.9969

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/coin-master-free-spins-whatsapp-link-game-hack PDF link annotation
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/free-spin-coin-master-link-2021_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/apps-to-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/free-minecraft-wallpaper_GM479516143.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/how-to-get-free-hats-on-roblox_GM431946152.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coinmasterdailyfreespins-com_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/moonactive-coin-master-hack_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/spin-rewards-coin-master_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/how-do-you-get-roblox-money_GM431946152.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-vip-hack_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-hack-apk-35-11_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/free-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/coin-master-free-spins-hack-but-no-surveys_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/monttechscom-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/hack-coin-master-apk-32-download_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/easy-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/free-spins-coin-master-ios-links_GM406889139.pdfIn PDF document text
- https://nextindiatimes.com/assets/ckfinder/core/connector/php/uploads/files/minecraft-windows-10-free-code_GM479516143.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_off00004dab.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4DAB	25576 bytes
SHA-256: `7a7cf1e550e533c553cd705ea7adf35f506ba90adbe9edddec57bcd493529bf8`
`font_01_sfnt_off00008745.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8745	18420 bytes
SHA-256: `bc1e597ae7b48ebdae567aa0f7d6bde22430efc02453d02bc2936cbc51cea71a`

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