PDF malware analysis — malicious · d3ecbd37a5fc58f8

MALICIOUS

PDF

35.1 KB Created: 2021-07-03 10:27:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-24

MD5: df6b6e41b751307bc6747d5d1fc3d5db SHA-1: fadfe8f4a3847608fdb57217e1a68b9532e2ae18 SHA-256: d3ecbd37a5fc58f80b0deb2de03a318298f31a18d470df4d231c90de304429d4

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/406889139/free-coins-on-coin-master-without-verification-game-hack PDF link annotation
- https://loba.com.vn/public/upload/files/roblox-jailbreak-geld-cheat_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-no-tasks_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/coin-master-free-spins-hack-iphone_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/snowed-out-v2-roblox-hack_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/download-hack-roblox-jailbreak-money_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-spin-link-in-coin-master-game_GM406889139.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-stuff-on-roblox-mobile-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-minecraft-coloring-pages_GM479516143.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/how-to-install-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-that-actually-works_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/hack-roblox-players_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-hacks-com_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/pubg-uc-yatrma-sitesi_GM1330123889.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/earn-points-for-robux_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-free-admin-script-pastebin_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/robux-free-2021_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/how-to-get-free-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/free-robux-live_GM431946152.pdfIn PDF document text
- https://loba.com.vn/public/upload/files/roblox-vehicle-simulator-money-miles-hack_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_off00003235.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3235	23024 bytes
SHA-256: `50caee9679b14213d9d206fb323cd66389b32deff9423a8016344bff4aaebff3`
`font_01_sfnt_off00006562.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6562	18636 bytes
SHA-256: `2d0dfdadec495ae8f46a0d5e7d8d74b83aa87cfc5a4623dcc77c547a69cc94c8`

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