PDF malware analysis — malicious · 06d99bd976350864

MALICIOUS

PDF

42.1 KB Created: 2021-05-20 00:46:26 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 200c4a645feb1529c4d2b1b237b0bbe7 SHA-1: 46e161db7b184fcd90bcf9b93dde090d1ea806c6 SHA-256: 06d99bd976350864b7e3bdc5208ecdd68cd72e6c4564bdbd1993dedb7eb300a4

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 0.9971

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-free-spin-link-today-50-game-hack PDF link annotation
- https://www.gymun.cz/images/earn-free-robux_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/robuxlove-net-free-robux_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/google-how-do-you-get-robux_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-hack-tool-generator_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-free-spins-hack_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/how-to-win-attack-madness-in-coin-master-hack_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/free-spin-coin-master-hack-2021_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/how-to-get-free-robux-not-a-scam_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-34-4-free-download_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/free-spins-and-coins-coin-master-2021-link_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/how-to-make-your-own-minecraft-server-for-free_GM479516143.pdfIn PDF document text
- https://www.gymun.cz/images/free-roblox-generator-for-roblox_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/robux-miner_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/cheats-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/free-roblox-usernames-and-passwords_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/free-robux-without-verify_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/how-to-hack-peoples-roblox-accounts_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/free-4-tiktokcom_GM835599320.pdfIn PDF document text
- https://www.gymun.cz/images/roblox-hack-download_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/robuxmatch-com-free-robux_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
`stream_003_off00004944.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4944	24360 bytes
SHA-256: `628ca54db341de7e82ed08a3d3c388a14778d907b62f37465dc48176715233c0`
`font_01_sfnt_off000080b1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80B1	18716 bytes
SHA-256: `34d71a1e16074585b92cedabb87dd12f76b262856d377b8410846490f9b2f930`

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