PDF malware analysis — malicious · 71080d6c55a82088

MALICIOUS

PDF

42.4 KB Created: 2021-05-15 13:01:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: e39a3cfd0b9dcc02c8c4808e2680da16 SHA-1: 9238e36dd331d64de66b94589437fd0fa894e225 SHA-256: 71080d6c55a82088f2054496e53ade4daf56b85a9f0b89bca692ea68b9c9f737

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/coin-master-free-spins-link-today-blogspot-game-hack PDF link annotation
- http://whiteyaknepal.com/userfiles/files/coin-master-spin-cheat_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/collect-free-spin-linms-coin-master_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/minecraft-mods-download-free_GM479516143.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/what-is-coin-master-app_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/inappropriate-roblox-games_GM431946152.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/minecraft-java-edition-redeem-code-free-2021_GM479516143.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/free-spins-coin-master-unlimited_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/coin-master-tricks_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/hack-coin-master-nyc_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/oprewards-login_GM431946152.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/how-to-get-free-robux-without-downloading-apps-2021_GM431946152.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/113-hacked-client_GM479516143.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/robux-no-verification_GM431946152.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/minecraft-games-to-play-for-free_GM479516143.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/coin-master-free-coins-2021_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/coinmaster-hack_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/mcpe-master-coins-hack_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/coin-master-hack-mod-apk-unlimited-spins_GM406889139.pdfIn PDF document text
- http://whiteyaknepal.com/userfiles/files/how-to-get-minecraft-for-free-on-iphone-2021_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_off00004a8b.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A8B	23880 bytes
SHA-256: `d7fe208919c556b269413cbd5d2ce8f8ee7879f57edb51f2258e777ec9030201`
`font_01_sfnt_off00008126.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8126	18988 bytes
SHA-256: `1a94c2a9bc7d67929b2b5125a5437c33a0f1d263f98c1f8ab91c7c8b0822f9c3`

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