PDF malware analysis — malicious · 35990608827005a9

MALICIOUS

PDF

33.9 KB Created: 2021-07-03 10:48:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: e7980cb880e5d948020fd939512a646e SHA-1: dc4e9f7da9eedff27568a6a86ce1f7acb955ff4e SHA-256: 35990608827005a9658940b4333f15bb34ce9e6182fa565fed8412e34eba3642

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/free-minecraft-games-for-kids-game-hack PDF link annotation
- https://foc.vn/public/upload/files/roblox-shirt-codes-free-shipping_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/earn-free-robux-for-roblox_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-place-rewards_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-coin-master-spins-no-verification_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-spin-pattern_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-rubux-hack-on-roblox_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/hacks-for-coin-master_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-links-for-free-spins-2021_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/minecraft-pc-download-free-full-version_GM479516143.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-l-robux-2021-obby_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/robux-codes-unused-free-robux_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-shorts-free_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/como-hackear-coin-master-iphone_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-hack-apk-link_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/cheat-roblox-youtuber_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-hack-robux-youtube_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-minecraft-java-account_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
`font_00_sfnt_off0000310d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x310D	22048 bytes
SHA-256: `a4d13da24ba93784935dd590b6470d17050297754f87ce46d236fd68788412c6`
`font_01_sfnt_off00006188.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6188	18432 bytes
SHA-256: `fce0cee9bb026e9b658c5a6be084441bf5d333caf380f9a351f6fa516673a190`

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