PDF malware analysis — malicious · 24ad3ce6dbe2b863

MALICIOUS

PDF

35.8 KB Created: 2021-06-21 16:49:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: b91e2aacd2c7ba5ebd3b7026c5e90c8c SHA-1: e2ca5a9aea507099a4e2b62051720459ea2b4264 SHA-256: 24ad3ce6dbe2b863ea00429026fb403c8bd7cfd442a74f851e5872c8d159d86b

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/free-robux-generator-no-human-verification-or-survey-2021-game-hack PDF link annotation
- https://www.hearcolors.com.mx/img/blog/files/free-roblox-glasses_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-link_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-hack-client_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-make-roblox-not-detect-cheat-engine_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/tiktok-free-fans-and-followers_GM835599320.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-unlimited-coin-master-400-spin-link_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-youtube-tiktok-dance_GM835599320.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-coin-master-cheats_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/robux-gift-card-2021-hack_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/lastrick-com-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/minecraft-font-free_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-things-on-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spin-daily-link_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-do-i-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/hey-google-how-do-you-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/hackear-coin-master-android_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/get-free-robux-proof-2021_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-c9m_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_off000032bf.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x32BF	22156 bytes
SHA-256: `cd380d301d2aa000b279a614f9ff345a8924bba053e71c0e70a94da73bbe1ac3`
`font_01_sfnt_off000063fa.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x63FA	20028 bytes
SHA-256: `862718f3553914d13e7050f30ddf7e0bf5fdf78324d2cf1d5c4be66b223f3a80`

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