PDF malware analysis — malicious · cf253c627409e64f

MALICIOUS

PDF

57.9 KB Created: 2021-04-29 14:33:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: 8672df9926e5ba32c58c9d6a7a93f2e4 SHA-1: 87d879b3e1c5f80b96862fd7247434671aab3e71 SHA-256: cf253c627409e64f4552f8f35db7ecd8e7dcf8ae899a68e3606ca0c2956b82ca

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains a heuristic firing for a game hack redirect lure, pointing to a suspicious URL. The document body and embedded metadata also reference this URL, suggesting the primary purpose is to trick users into visiting a site that likely hosts further malicious content or exploits. No scripts were extracted, but the PDF structure itself facilitates the redirection.

Machine Learning

Nyx PDF Classifier malicious score 0.9140

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.xyz/app/431946152/visea-descargar-hack-roblox-game-hack PDF link annotation
- https://www.malesse.com/ckfinder/userfiles/files/how-to-make-free-admin-game-roblox.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/claim-gg-earn-free-robux-for-roblox.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/roblox-piano-hack.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/roblox-dayz-cheat-code.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/roblox-free-robux-hack-2021.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/descargar-roblox-hackeado-para-pc.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/free-robux-obby-limited-time-only-2021.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/roblox-edit-money-value-cheat-2021.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/roblox-cheat-codes-for-robux-2021.pdfIn PDF document text
- https://www.malesse.com/ckfinder/userfiles/files/roblox-booga-booga-hack-script-pastebin.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 4

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000044fe.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x44FE	39392 bytes
SHA-256: `ba604dc348c286e4369070fd3b0d652a8858a4e6457d556bbde5de2fcbf2f67f`
`font_01_sfnt_off00009a6c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9A6C	2848 bytes
SHA-256: `4737c2778a085e0cb49e73f3b054b1a71e3f40720d213b4bfda97f95a31bfbf1`
`font_02_sfnt_off0000a429.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA429	11440 bytes
SHA-256: `154d59d1680f2d1e38ccb783d6997f344290d121007e51df331726de4128c12e`
`font_03_sfnt_off0000bf49.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xBF49	18892 bytes
SHA-256: `179ca43dc645e031b6d6174f604de976aa583755040764f29c94548a19e2eaef`

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