PDF malware analysis — malicious · 02ba5c7d7be7a1f2

MALICIOUS

PDF

33.9 KB Created: 2021-06-21 19:01:31 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: cd65e764bb93159b99f09f4554d486f2 SHA-1: 713a07a65dec6bfef6abcddbb55b921575cdeddd SHA-256: 02ba5c7d7be7a1f2ba70bf4ebdaba69845d6af955ace3caa31b8fc88fcaa9b12

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF file contains a high-confidence heuristic firing for a 'GAME_HACK_REDIRECT_LURE', indicating it directs users to a fake generator or hack. The embedded URL, http://netcdn.co/app/835599320/tiktok-free-account-game-hack, is the primary indicator of this malicious redirection. The ML classifier also strongly flagged this PDF as malicious. While no scripts were explicitly extracted, the nature of the lure suggests a social engineering tactic to trick users into visiting a potentially malicious site, likely for credential harvesting or further malware delivery.

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/835599320/tiktok-free-account-game-hack PDF link annotation
- https://www.hearcolors.com.mx/img/blog/files/free-coinmaster-spins_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-many-villages-are-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/hack-roblox-cheat-engine-bypass_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-coins-link-2021-deutsch_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/minecraft-cheats-switch_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-minecraft-for-free-on-tablet_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/www-free-robux_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/mobihack-roblox-hack_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-minecraft-bedrock-for-free_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-games-that-actually-work_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-hack-into-games-on-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-gift-cards_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/pop-slots-free-vegas-casino-slot-machine-game-coin-master_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spons-apk-2021_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-now_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-fix-cheat-engine-crashing-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/daily-coin-master-free-spin-link_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
`font_00_sfnt_off00003214.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3214	21816 bytes
SHA-256: `aa6fa73a99e21c78e80752f079ca886a78c21a5a338a31e295f95fb8a1ee3637`
`font_01_sfnt_off00006251.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6251	18112 bytes
SHA-256: `ca8d36865a97e26878f1ad2681fe9a10d010a426edbd502935dab7d80505beaf`

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