PDF malware analysis — malicious · ea3c01fde12d888b

MALICIOUS

PDF

34.1 KB Created: 2021-07-03 21:35:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: d2a407231d88d8a759b2f07f0b2208dc SHA-1: 661b724942b13edebb4bbc87df92fb860f16fb20 SHA-256: ea3c01fde12d888b41503811f4e249c54c3c4630abc69af63f69e6705006b24f

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document uses a lure of 'Free Robux Generator' to entice users to click on a link. The primary link, http://netcdn.tw/app/431946152/free-robux-generator-no-human-verification-2021-game-hack, redirects to a site that likely hosts malware or phishing content. The document's structure and embedded URLs suggest a common social engineering tactic to trick users into downloading or visiting malicious sites.

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.tw/app/431946152/free-robux-generator-no-human-verification-2021-game-hack PDF link annotation
- http://inforplace.com.br/ckfinder/userfiles/files/how-to-hack-a-minecraft-server-and-make-yourself-op_GM479516143.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/where-to-find-free-clothes-on-roblox_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/blue-wistful-wink-roblox-for-free_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/how-to-get-free-things-in-roblox-2021_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/coin-master-free-spin-and-coin_GM406889139.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/free-robux-rewards_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/roblox-earn-robux_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/microsoft-free-robux_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/free-working-roblox-robux-codes_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/free-ninja-pack-roblox_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/roblox-hack-no-downloading-games_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/free-catalog-roblox-hack_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/free-robux-offers_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/earn-free-robux_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/get-800-robux-for-free-gamekit_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/roblox-installer-for-android-free_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/tiradas-coin-master_GM406889139.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/roblox-account-pin-hacked_GM431946152.pdfIn PDF document text
- http://inforplace.com.br/ckfinder/userfiles/files/roblox-free-robux-now_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_off00002f89.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2F89	21392 bytes
SHA-256: `9a6f323ccef655c884571a1b733bbf4fbf0e7f6ac7b5f1521e9730ef5780a8c1`
`font_01_sfnt_off00005e08.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5E08	19736 bytes
SHA-256: `09f061b847c63ff59f035118bd628253d90c30315b77b042e81f05fdb0d3e9b1`

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