PDF malware analysis — malicious · c7abe19af85cedca

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 15:37:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: b4f970328274e16be13383621c032378 SHA-1: dfdf1736dfb5a5aa8e8c387ff433621fa7c600a7 SHA-256: c7abe19af85cedca61dedbbe6db2885f252a8b53b61df82b6a3353ea3abf2159

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/hacks-for-roblox-case-clicker-game-hack PDF link annotation
- https://www.advancissurgical.com/uploads/files/files/free-coins-coin-master-daily_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-114-4-download_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-hack-no-survey-or-verification_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/aternos-free-minecraft-server_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hack-unlimited-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/where-to-buy-pubg-uc_GM1330123889.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/pirates-wrath-roblox-hacks_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-hack-site_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-robux-picture_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/roblox-generator-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/minecraft-free-no-download_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/proprofs-free-robux_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/best-free-spin-app-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/free-minecraft-skin-maker_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-play-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/how-to-hack-people-in-roblox_GM431946152.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/coin-master-gold-cards-hack_GM406889139.pdfIn PDF document text
- https://www.advancissurgical.com/uploads/files/files/github-roblox-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_off00003373.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3373	22436 bytes
SHA-256: `f75b3689b1e3c7519e329a304ffd70dbfb6611004ad6a1d26c8307fefbcf8ede`
`font_01_sfnt_off0000653e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x653E	18940 bytes
SHA-256: `934d4e3b5ef104930b2add577f2ab0c0aaeb3a399469a7027da38c94873fa246`

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