PDF malware analysis — malicious · 7183d9e2d7bd72b7

MALICIOUS

PDF

35.2 KB Created: 2021-06-25 14:33:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 735e20e598c526f44a3b0912cf15ff20 SHA-1: 5c952d97850eb9b620a0e9344b0b5ac65d0b1a41 SHA-256: 7183d9e2d7bd72b75e4b7d6da08bba0a271ca8107580aa152f931a3fd96ae373

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a lure related to 'free Robux' and 'game hacks' to entice users to click on embedded links. The primary link, http://netcdn.co/app/431946152/how-to-use-free-robux-cheat-codes-game-hack, likely leads to a malicious site designed for credential harvesting or malware distribution. While no scripts were explicitly extracted, the PDF structure and embedded URIs strongly suggest a phishing or social engineering attack vector.

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-use-free-robux-cheat-codes-game-hack PDF link annotation
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-system_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/lazy-blocks-com-free-robux_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-hack-mod_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/unlimited-free-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-hack-1021_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/get-free-robux-no-verification_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-no-verify-2021_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/get-free-coin-master-coins_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/daily-spins-coin-master_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-heaven-free-daily-spins_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/legit-coin-master-hack-site-zyngaplayerforumscom_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-spins-coins-coin-master_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/free-robux-no-verification-no-survey_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/op-rewards-free-robux_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/roblox-robux-hack-program_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/robux-link_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/info-roblox-com-robux_GM431946152.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/coin-master-free-spins-for-today_GM406889139.pdfIn PDF document text
- http://www.espaciocultivarte.com/ckfinder/userfiles/files/how-to-tiktok-hands-free_GM835599320.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_off000031a1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x31A1	22380 bytes
SHA-256: `2401cf2f8da697b9f65c88e86eb078df8fc809755c4a0c707a7615111649ea83`
`font_01_sfnt_off00006399.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6399	19324 bytes
SHA-256: `7e73aa8c59e5fb714658bd06f69060c638e4535c2ef111277b0716fc56a7be80`

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