PDF malware analysis — malicious · 3987ea554f98767a

MALICIOUS

PDF

44.5 KB Created: 2021-05-14 00:32:14 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 49f070032a5d1e51350a15900dcece48 SHA-1: 48046b32d401b22cd4ed777585c269dc1802f044 SHA-256: 3987ea554f98767ae0b410e2bf7f8ea7b1b7648c8aae8fe359bc4922bfe5e274

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/coin-master-hack-download-apk-game-hack PDF link annotation
- https://www.gymun.cz/images/free-robux-2021-no-human-verification_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-hack-android-2021_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/who-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/robux-miner_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-hack-coins_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/minecraft-net-download-free_GM479516143.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-free-spins-generator-no-human-verification_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/how-to-download-minecraft-for-free-on-your-phone_GM479516143.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-game-free_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-70-spin-link-today_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/minecraft-hacker-skin_GM479516143.pdfIn PDF document text
- https://www.gymun.cz/images/www-free-robux_GM431946152.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-get-a-lot-of-robux_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/minecraft-items_GM479516143.pdfIn PDF document text
- https://www.gymun.cz/images/roblox-free-accessories_GM431946152.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-daily-gift-free-spins-and-coins-link_GM406889139.pdfIn PDF document text
- https://www.gymun.cz/images/coin-master-hacks-to-get-spins_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_off00004823.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4823	24756 bytes
SHA-256: `cb8b6a16a294932e7d80ed22b88646cffff6870cd86cea7e26a0aa8e9bbe1169`
`font_01_sfnt_off0000811d.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x811D	2840 bytes
SHA-256: `3fb127b764b9d10f5525bc4de5ec8316de704409ccb0cf21cff3ad8a30d11676`
`font_02_sfnt_off00008ace.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8ACE	18472 bytes
SHA-256: `a0b4f907e64f54d1e36da46d63ed408052d589db2dcff26c8dd3e6dd691bcc85`

Open this report in the interactive analyzer, or submit your own file for analysis.