PDF malware analysis — malicious · 6fdf85e607f12a17

MALICIOUS

PDF

44.7 KB Created: 2021-05-19 16:11:52 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 352661b752d6a5c1858126e23b1fc677 SHA-1: 6f955d92e4fe7ee1391cebd689037276a3fef5d6 SHA-256: 6fdf85e607f12a17bd4066ef85582a00a13cd715795e3b87f5a0b54bed9915a1

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

Nyx PDF Classifier malicious score 0.9632

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/hack-coin-master-app-game-hack PDF link annotation
- https://ccej.lviv.ua/images/coin-master-viking-quest-hack_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/how-to-get-free-robux-website_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/make-free-robux_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/free-script-executor-roblox_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/coin-master-free-spins-moonactive_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/coin-master-hack-app-ios-download_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/coin-master-daily-free-spins-and-coins-2021_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/get-coin-master-spins-free_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/coin-master-free-link-app_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/level-coin_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/robux-hack-tools_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/easy-robux-com_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/free-spins-coin-master-blogspot_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/bloxpage-free-robux_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/avatar-de-roblox_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/free-robux-android_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/free-robux-no-verification_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://ccej.lviv.ua/images/robux-link_GM431946152.pdfIn PDF document text
- https://ccej.lviv.ua/images/toolbox-apk_GM479516143.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_off0000496f.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x496F	24536 bytes
SHA-256: `2f6872c9b80afc6dd017e478ca25883e28e83d1fd4009122cd06842a2c61e9ae`
`font_01_sfnt_off000080af.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80AF	3560 bytes
SHA-256: `c953d730e49f69c7d62e02a926729ae4a31de13d9a976dc4a95b39cf47066c93`
`font_02_sfnt_off00008d35.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D35	17892 bytes
SHA-256: `9c4dada9bbcb376b19026f9d82cd29b1bcb88de2b1ea71a23b293af0df71213a`

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