PDF malware analysis — malicious · c1cc0517efc64e57

MALICIOUS

PDF

48.4 KB Created: 2021-06-03 05:14:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: d4390edaf64b74b5d2a39b3d21bfd57e SHA-1: 218caa4c0dcbdeaa56641e7693808ff66dfd60e5 SHA-256: c1cc0517efc64e57a5adc7e72d5e95fa86c4a55adb6aef27f3b4214e1ff1a8af

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains a lure for game hacks and free spins, directing users to the malicious URL https://netcdn.online/app/406889139/500-free-coin-master-spins-game-hack. This URL is associated with a high-risk redirector, indicating a likely phishing or malware distribution attempt. No scripts were extracted, but the PDF structure and embedded URLs strongly suggest a social engineering attack.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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 https://netcdn.online/app/406889139/500-free-coin-master-spins-game-hack PDF link annotation
- https://www.hearcolors.com.mx/img/blog/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-minecraft-java-edition-for-free_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-hack-coin-master-in-pc_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-legit_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-coins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/minecraft-esp_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-long-is-the-minecraft-free-trial_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-coin-master-spins_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-meme_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-hack-roblox-passwords_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/http-coin-master-hack-club_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/minecraft-free-app_GM479516143.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-without-human-verification-2021_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/how-to-get-free-premium-roblox_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-gift-card-codes-2021_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/free-robux-no-verification-required_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/get-free-cards-in-coin-master_GM406889139.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/roblox-games-com-free_GM431946152.pdfIn PDF document text
- https://www.hearcolors.com.mx/img/blog/files/coin-master-free-spins-link-hack_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off0000537d.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x537D	25988 bytes
SHA-256: `6e6f85ef3224f8a974a3ce143b0cbae41b14ac53b0b1219c75d56d63d0d8bcf2`
`font_01_sfnt_off00008db4.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8DB4	3664 bytes
SHA-256: `d36d529b7c516d4556cff9289e20797a41abe86998247c34ed5ed89593e15525`
`font_02_sfnt_off00009a9e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A9E	18192 bytes
SHA-256: `fa9b97764db53bbdcb5733ef4c9d9cb3d8044f2b2a4eb4797e1cb3a317099c79`

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