PDF malware analysis — malicious · 6ae9714a5d4c7e70

MALICIOUS

PDF

44.4 KB Created: 2021-05-15 09:52:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 1bad27815fb711f15abdfe573c7d8715 SHA-1: 137d52dac422640ef80879c299c3569f38462f87 SHA-256: 6ae9714a5d4c7e705312cf84a3aa6ae4e49e7e2beb0a94f27f6b50466bce0879

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 https://netcdn.xyz/app/406889139/free-spins-coin-master-2021-glitch-game-hack PDF link annotation
- https://diendientuvn.com/public/upload/files/how-to-hack-any-roblox-account_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-to-make-robux_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-to-get-free-coins-on-coin-master-hack_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/master-coin-free-spin_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-robux-hack-2021_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/coin-master-hack-for-ios_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-robux-without-downloading-anything_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-2021-robux_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/minecraft-hack-app_GM479516143.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/coin-master-hack-game-download_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/play-coin-master-for-free_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-do-i-get-free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-coins-on-coin-master_GM406889139.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/how-to-get-free-things-on-roblox_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-robux-generator_GM431946152.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/minecraft-menu_GM479516143.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/free-minecraft-java-account_GM479516143.pdfIn PDF document text
- https://diendientuvn.com/public/upload/files/static-moonactive-net-free-spins-coin-master_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
`stream_003_off00004a25.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A25	29056 bytes
SHA-256: `4fbc200852de9a9c46fbc237b84a53a3fef9aa4295ffc6e0822ce9b6bc0510b6`
`font_01_sfnt_off00008a9a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8A9A	18528 bytes
SHA-256: `8c6d4bd1280aaca7551541ea66dfc454f80fb022d039b81e2f7b76bbe9834590`

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