PDF malware analysis — malicious · 211f896e8f497a65

MALICIOUS

PDF

35.4 KB Created: 2021-06-23 02:14:09 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: a56a51ac5ddbd24533249a57c3e61e20 SHA-1: b89afc470021128e8811744231d5d3db6165db3f SHA-256: 211f896e8f497a65720886bcf4341944d184d18cd0c6e9fe789210d2ae3df551

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1203 Exploitation for Client Execution

The PDF document contains a lure related to game hacks and free shipping, directing users to a suspicious URL. This URL, http://netcdn.co/app/431946152/shirt-roblox-template-free-shipping-game-hack, is likely intended to deliver a malicious payload. The ML classifier strongly flagged this PDF as malicious, supporting the conclusion that it is part of a phishing or malware distribution campaign.

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/431946152/shirt-roblox-template-free-shipping-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/tiktok-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/get-free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-hacks_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-hack-builders-club-on-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-hack-apk-free-download_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-make-hacks-with-studio-roblox_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-be-a-builders-club-in-roblox-free_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-follow-a-player-everywhere-he-goes-roblox-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/oprewards-com-earn_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/best-free-minecraft-servers_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-tiktok-followers-generator_GM835599320.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spain_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-coins-and-spins-today_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-jesse-tc_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/can-you-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/minecraft-free-install_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-music-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-coin-master-game_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_off000031fc.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31FC	22576 bytes
SHA-256: `e2cb7eb99c2bdd04639b6252d2df174327fc8338a61ab7bec31f3244c775a60f`
`font_01_sfnt_off0000645b.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x645B	19476 bytes
SHA-256: `f939d935d3537cb26045b55068285d8c429a2e0ef62c691e9843de8fb0f67e27`

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