PDF malware analysis — malicious · a41607c7c3e6996b

MALICIOUS

PDF

35.8 KB Created: 2021-06-27 15:22:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 659d8cc4f170c29ad1b9db701c3d6d5b SHA-1: 163ffa8c7632b14d7a2ddfe2467395970cac60db SHA-256: a41607c7c3e6996b319870630f2a5dbc4e15c40d1e31acc27b644c5ad4fbfd3d

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/431946152/free-vehicle-simulator-roblox-2021-game-hack PDF link annotation
- http://www.vermaagri.com/uploaded_files/userfiles/files/coin-master-hacks_GM406889139.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/robux-hack-lazyassgamer_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/free-robux-android_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/free-robux-2021_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/coin-master-free-daily-spins-and-coins_GM406889139.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/coin-master-codes_GM406889139.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/coin-master-free-spin-and-coins-fbid-links_GM406889139.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/hack-the-coin-master_GM406889139.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/you-promised-my-son-free-robux_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/robux-hack-2021-august_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/guide--coin-master-free-tips_GM406889139.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/robux-free-codes-2021_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/blox-supply-free-robux_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/free-vip-server-roblox-mad-city_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/claim-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/robux-for-offers_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/free-roblox-outfits-2021_GM431946152.pdfIn PDF document text
- http://www.vermaagri.com/uploaded_files/userfiles/files/roblox-free-gift-cards-list_GM431946152.pdfIn PDF document text
- http://vermaagri.com/uploaded_files/userfiles/files/minecraft-for-ipad-free_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_off0000343f.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x343F	21804 bytes
SHA-256: `c15fce2f7e9e1f54644185a1e53a1af7d17bf45f8f155253962a993f6303966f`
`font_01_sfnt_off00006473.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6473	19976 bytes
SHA-256: `91893f883ce2d878a0d7311020e3c6d408bf818486569ba89e306ea676cfc3ab`

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