PDF malware analysis — malicious · d541e00e0a254b8d

MALICIOUS

PDF

42.3 KB Created: 2021-05-15 00:45:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 6818dc71822d63be182bcd74ecbe38d5 SHA-1: 25ac55f8cdfb238c955e2fcc554fb1472c0409a0 SHA-256: d541e00e0a254b8d2bc074e251eb882b7988665449a4c8ae4707396514c63a07

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/431946152/free-roblox-gift-card-game-hack PDF link annotation
- https://www.citrus-shop.cz/images/coin-master-32-mod-hack-apk-download_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/free-robux-pin-codes_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/coin-master-app-hack_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/free-robux-generator-2021-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/free-2021-robux_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/how-to-hack-someones-account-on-roblox_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/roblox-free-robux_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/free-daily-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/coin-master-free-spins-bit-ly_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/coin-master-2021-free-spins-link-blogspot_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/tryrbx-site-free-robux_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/coin-master-free-coins-and-spins_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/hack-coin-master-343-apk_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/free-coin-master-spins-and-coins_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/get-free-cards-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/coin-master-hack-online-link_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/app-master_GM406889139.pdfIn PDF document text
- https://www.citrus-shop.cz/images/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://www.citrus-shop.cz/images/coin-master-daily-free-spins-and-coins-2021_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_off000048f3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x48F3	25140 bytes
SHA-256: `c4de149b1c33db96cca90741eee8f47190d2b7a25941ebb37f74459f410096ef`
`font_01_sfnt_off00008228.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8228	18572 bytes
SHA-256: `d6dd878634c6e0bfa0573f8d07d8c04072d5223543faa3ff40eccc306bc8b9ad`

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