PDF malware analysis — malicious · 09866ba55bcec7d3

MALICIOUS

PDF

43.3 KB Created: 2021-05-11 23:39:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: b0cd66106991175f965f5695bf8daf16 SHA-1: 745646b8decf82846618afb26e491476966b6d15 SHA-256: 09866ba55bcec7d3d953f5bcf7f78d88b8bc63349d437126519cb7cd88e5dc60

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/431946152/free-robux-codes-no-verification-2021-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/free-robux-games-on-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spins-and-coins-from-coin-master-game_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-roblox-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-ultra-attack-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-make-a-minecraft-client_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/rbx-land-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/www-coin-master-hack_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/202100-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/spin-free-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-girl-hair-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-do-you-get-free-robux-without-paying_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-coin_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-cp_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-download-minecraft-windows-10-edition-for-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-that-actually-works_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_off00004802.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4802	26620 bytes
SHA-256: `55aa4f055142b49b810ed1465f4c26705e7ef96a402fe1344590ac2d5a781144`
`font_01_sfnt_off0000842e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x842E	19176 bytes
SHA-256: `db1e34f64d78c47646929d75ef8e7d82dfccacc985d29653851fea35b3c0bf96`

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