PDF malware analysis — malicious · 104cff52c129d72a

MALICIOUS

PDF

44.0 KB Created: 2021-05-15 11:01:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-29

MD5: 13523a16e1158149ba37af9ec23a7339 SHA-1: d76f6ff82d29cc1360b76cddaeb5e2f7e99c27e3 SHA-256: 104cff52c129d72a964a8fd1d96c273ef7d5af1d6502fd5c0a95339012137211

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document contains a high-confidence heuristic indicating it links to a game hack lure. The embedded URL, https://netcdn.xyz/app/406889139/coin-master-cheat-free-game-hack, is likely intended to lead the user to a malicious site. While no scripts were explicitly extracted, the PDF structure and heuristics suggest it's designed to exploit user interest in game cheats to redirect them to potentially harmful content.

Machine Learning

Nyx PDF Classifier malicious score 0.9648

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-cheat-free-game-hack PDF link annotation
- http://gops.pruszczgdanski.pl/images/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/robux-game-com_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-mod-apk-coin-master_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-hack_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coinmaster-free-spins-link_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coinmasterfreespins_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/spinuri-gratis-coin-master_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-free-coins-and-spins-2021_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-apk-hack-2021_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/100-free-coin-master-spins_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/oprewards-free-robux_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/androeed-ru-minecraft_GM479516143.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-human-verification_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/free-robux-apk_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/coin-master-hack-tool-pc-download_GM406889139.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/promo-code-free-robux_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/how-to-get-free-robux-com_GM431946152.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/minecraft-free-download-apk-softonic_GM479516143.pdfIn PDF document text
- http://gops.pruszczgdanski.pl/images/mcpe-master-hack-coin-apk_GM406889139.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000047e8.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x47E8	24920 bytes
SHA-256: `e4344f04f294f7e28b950a960a7412f3fc4890973bfcfbe6d2e8ea248aa44d17`
`font_01_sfnt_off00008109.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8109	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008abb.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ABB	17876 bytes
SHA-256: `3080be39145a7e19e49f31c27d216b7ef11c5a53cf2903de633486ff32396878`

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