PDF malware analysis — malicious · 25669d2d64b55dec

MALICIOUS

PDF

49.3 KB Created: 2021-05-12 18:03:49 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 4d724d66ac89025317c7cb93eb835f1b SHA-1: 55262fc919e000f498c3080fddc539e1d3f6c8fe SHA-256: 25669d2d64b55deca156f21b8e4ea82f3593359e3fd0201d6e853bce5d601c54

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains multiple links that redirect to websites offering game hacks and free items, a common lure for phishing or malware distribution. The ML classifier also flagged this PDF as malicious. While no scripts were directly extracted, the embedded URLs and the nature of the lures suggest an attempt to direct the user to a malicious site, likely for credential harvesting or further payload delivery.

Machine Learning

Nyx PDF Classifier malicious score 0.8642

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/406889139/coin-master-club-hack-game-hack PDF link annotation
- https://senvoigiatot.com/public/upload/files/free-spins-coin-master-no-survey_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/cute-free-stuff-on-roblox_GM431946152.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/how-to-get-free-spins-on-coin-master_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/minecraft-bedrock-free_GM479516143.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-70-spin-link_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/free-spins-on-coin-master-links-2021_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/free-minecraft-server-hosting-with-plugins_GM479516143.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/how-to-get-free-pet-food-in-coin-master_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-official-page_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/how-to-become-a-hacker-in-roblox_GM431946152.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-free-spins-link-download-hack_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/free-coin-master-hacks_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/roblox-hacks-for-mac_GM431946152.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coinmaster-spins_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/how-to-earn-free-robux_GM431946152.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-daily-bonus_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/how-many-free-spin-links-is-there-for-coin-master_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-hack-pc-2021_GM406889139.pdfIn PDF document text
- https://senvoigiatot.com/public/upload/files/coin-master-coins-free_GM406889139.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_off00004c83.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4C83	25240 bytes
SHA-256: `f41378372ad80458eaec1a0b983ada74669b2c05ed966bb4686e42f798631347`
`font_01_sfnt_off00008727.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8727	4028 bytes
SHA-256: `a17c2a746d49ac23b23e38a371e32fddecfcd91b10cf42ff6155bff6b8a07e91`
`font_02_sfnt_off000094c7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x94C7	2788 bytes
SHA-256: `6fd7c7f447d66842f81aa8cf197935b17f22157d0c7e9f95622df1b5b4ddf530`
`font_03_sfnt_off00009eb6.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9EB6	18088 bytes
SHA-256: `31499fb402872569a1906597877e8e0710c4d20c86bc1fc6962fc68df46ab383`

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