PDF malware analysis — malicious · d24650eba696fa85

MALICIOUS

PDF

35.4 KB Created: 2021-07-03 16:35:43 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 24caa5d8c3b9c6a517c6ed50880c651b SHA-1: f94857693106259defe5cd3e656e1165409522b6 SHA-256: d24650eba696fa85db608ba7709956a7562b6307c1c838dda149f3e5e69af81e

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.tw/app/406889139/free-spins-coin-master-facebook-game-hack PDF link annotation
- https://www.liputanbali.com/assets/CKImages/files/free-robux-generator-no-verification_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/bbg-free-robux_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/is-roblox-free-on-the-computer_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/minecraft-java-edition-code-free_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-money-roblox-rocitizens_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-robux-no-verification-or-survey-2021_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/coin-master-free-spins-link-2021-iphone_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-hack-site-2021_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/minecraft-java-edition-download-free_GM479516143.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/orewards-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-get-free-things-on-roblox-2021_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/how-to-install-lego-hacks-for-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-robux-hack-extension_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-dominius-roblox_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/free-coin-app_GM406889139.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-cheating-real-no-more-playing_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/roblox-dino-toy-codes-free_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/tiktok-free-movies_GM835599320.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/urbis-roblox-money-cheat_GM431946152.pdfIn PDF document text
- https://www.liputanbali.com/assets/CKImages/files/gete-free-robux_GM431946152.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_off000032b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32B3	23144 bytes
SHA-256: `0d3c7fbefa90ae46d85d1c2c9e72674390aa2d156792e14036cff046e700e86b`
`font_01_sfnt_off000066eb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x66EB	18504 bytes
SHA-256: `cd54949ebaef5849fc85f109f73d9d11112ecbf4734953d8e6d9505d542a0608`

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