PDF malware analysis — malicious · 5db6b5cd029a5567

MALICIOUS

PDF

34.6 KB Created: 2021-06-28 19:31:59 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: d402b5e5d1384c8976e08afd061d1324 SHA-1: d8aa9f7e6883ce5481d71240a5f338ed39574f2a SHA-256: 5db6b5cd029a556707d2734a4900a7ec143ddfb671592b09669ae952553d76a6

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a high-severity heuristic firing indicating it links to a 'free generator / game hack' redirector, specifically targeting users interested in Roblox. The embedded URL, http://netcdn.co/app/431946152/how-to-get-free-group-on-roblox-game-hack, is the primary indicator of malicious intent. The document body reinforces this lure by mentioning 'how to get free group on Roblox'.

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/how-to-get-free-group-on-roblox-game-hack PDF link annotation
- https://www.hearcolors.com.mx/img/blog/files/100-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-mobile_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/robux-free-online_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-generator_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/freer-pro-tiktok_GM835599320.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/robux-free-promo-codes_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/best-free-minecraft-hacked-client_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-sign-up-free-online_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-swordpack-t-shirt-free-shipping_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-but_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/www-coin-master-hack-xyz_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-do-i-get-minecraft-for-free_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/minecraft-pvp-hacks_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-hack-no-human-verification_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/haktuts-coin-master-free-spin-link_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/freegames911com-coinmastertipsandcheats2021freecoinsandspins_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/20210-robux_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-prison-life-v2-02-hack_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-robux-no-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/hacks-para-roblox_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_off00002efd.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EFD	22568 bytes
SHA-256: `151c41db0a66710adf259eb160f7a6a3630f1c750d40e74b5f871aa8b7c6fd38`
`font_01_sfnt_off00006162.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6162	19236 bytes
SHA-256: `aac5ae139654154805a3505e0a83148de62e78303fc230c90af2f7e4899a5124`

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