PDF malware analysis — malicious · e5573b1c8bacdd81

MALICIOUS

PDF

36.1 KB Created: 2021-06-18 03:07:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: aded62e311ae26b658aeed5b77cd7d2e SHA-1: 4c72374adc294f6667994f49b2f9f59e24549b18 SHA-256: e5573b1c8bacdd81d852f43dd5d549e3a4fbb52ea970febf9f4badd872a17af6

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/is-there-a-way-to-get-free-robux-on-roblox-game-hack PDF link annotation
- https://klinikdentalestetic.com/ckfinder/userfiles/files/how-to-hack-roblox-for-robux_GM431946152.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/free-private-server-roblox_GM431946152.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/minecraft-switch-free_GM479516143.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/free-unlimited-coin-master-online-tool_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/daily-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/game-hunters-coin-master_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/coin-master-gold-cards-free_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/roblox-hack-cheat-tool-v12_GM431946152.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/coin-master-heaven-daily-free-spins_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/free-coins-and-spins-for-coin-master-game_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/coin-master-free-spin-ml_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/free-robux-no-human-verification-or-survey-or-download_GM431946152.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/how-to-get-free-robux-codes_GM431946152.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/hack-coin-master-game-download_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/daily-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/appsmob-info-coin-master-hack_GM406889139.pdfIn PDF document text
- https://klinikdentalestetic.com/ckfinder/userfiles/files/can-you-host-a-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.roblox.com/my/tasksIn 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_off00003430.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3430	22824 bytes
SHA-256: `7e30ec7562d48cc58b509ae6b997a29b6ee863e3e5429267868926f8029d2741`
`font_01_sfnt_off0000678a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x678A	19252 bytes
SHA-256: `6924f7f918ffd9f7478b914dbaf94e84cb88c3f3e0584ff6510e5a65fbbcec4a`

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