PDF malware analysis — malicious · ce8f0d413dfeb531

MALICIOUS

PDF

33.0 KB Created: 2021-06-26 02:55:32 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 3c9e83a436ae828c6d2a0cf33d78bc65 SHA-1: 88f11b1dcf4de51ca7ee7152f051db480d78f77a SHA-256: ce8f0d413dfeb531ca4a3cb3d97c71ff6612ef2c70a9c15862fa80e63e8ae429

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 0.9824

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/roblox-hack-for-free-robux-no-verification-game-hack PDF link annotation
- https://www.apartmani-mestrovic-krk.hr/files/coin-master-free-items_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/coin-master-free-cards_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/coin-master-daily-free-spins-link-march-2021_GM406889139.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/free-robux-with-no-verification_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-roblox-accounts-with-robux-that-work-not-banned_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/how-to-hack-coin-master-cheat-engine_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/coin-master-free-spins-5-10-2021_GM406889139.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-admin-roblox_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/free-robux-today_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/earn-robux-today-for-free_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/robloxheroxyz-free-robux_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/robux-com-free-robux_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/script-executor-roblox-free_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/minecraft-free-install_GM479516143.pdfIn PDF document text
- https://www.apartmani-mestrovic-krk.hr/files/roblox-game-free-play-no-download_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-robux-no-human-verification-no-survey_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/hack-yourself-levels-in-roblox-phantom-forces_GM431946152.pdfIn PDF document text
- http://apartmani-mestrovic-krk.hr/files/free-coins-coin-master_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_off00002b75.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2B75	21952 bytes
SHA-256: `8d0ebba0b99ddb1af8c7edcb3616be002d3d7838c8e0b83751429428cca5c849`
`font_01_sfnt_off00005bb2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5BB2	19316 bytes
SHA-256: `b5ed4533ae49164101d85e65c2a2540eef1bd4b0ce833c56f7a3ce4e7cd58801`

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