PDF malware analysis — malicious · 493a8e5331f10b4e

MALICIOUS

PDF

42.4 KB Created: 2021-05-17 03:15:02 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: 47f1ff7901b9091a9e7ccf020e337d76 SHA-1: 298a29d6edf8d353c6f46550bd382ccbd14be43c SHA-256: 493a8e5331f10b4e340dc93886ea64fcfacc8c91d8bb12d13f29c09dcc5ffb99

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-app-game-hack PDF link annotation
- https://gryps.de/images/earn-free-robux-on-roblox_GM431946152.pdfIn PDF document text
- https://gryps.de/images/coin-master-free-spin-group_GM406889139.pdfIn PDF document text
- https://gryps.de/images/coin-master-free-spins-and-coins-haktuts_GM406889139.pdfIn PDF document text
- https://gryps.de/images/can-u-get-free-robux_GM431946152.pdfIn PDF document text
- https://gryps.de/images/free-robux-real_GM431946152.pdfIn PDF document text
- https://gryps.de/images/easy-ways-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://gryps.de/images/ways-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://gryps.de/images/free-roblox-groups_GM431946152.pdfIn PDF document text
- https://gryps.de/images/mcpe-master-hack-coins_GM406889139.pdfIn PDF document text
- https://gryps.de/images/gamehunters-coin-master_GM406889139.pdfIn PDF document text
- https://gryps.de/images/how-to-get-free-robux-without-verification-or-surveys_GM431946152.pdfIn PDF document text
- https://gryps.de/images/www-cheatsk-com-coin-master-hack_GM406889139.pdfIn PDF document text
- https://gryps.de/images/coin-master-free-coins-cheat_GM406889139.pdfIn PDF document text
- https://gryps.de/images/coin-master-free-spin-2912-2021_GM406889139.pdfIn PDF document text
- https://gryps.de/images/real-free-robux-codes_GM431946152.pdfIn PDF document text
- https://gryps.de/images/free-robux-hack_GM431946152.pdfIn PDF document text
- https://gryps.de/images/freerobuxhack-us-2021_GM431946152.pdfIn PDF document text
- https://gryps.de/images/coin-master-free-pet-snacks_GM406889139.pdfIn PDF document text
- https://gryps.de/images/lazyblocks-com-robux_GM431946152.pdfIn PDF document text
- https://gryps.de/images/free-spins-on-coin-master_GM406889139.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_off00004a32.bin`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4A32	25016 bytes
SHA-256: `014563259c900701cfa7d04062d81a9aea0be8299e76da14526922a8a23a038a`
`font_01_sfnt_off000083e8.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x83E8	18056 bytes
SHA-256: `82bd5e5fc9f9c8e10db102fb3f3c15aafc022ab197dd07e70821ea88e25dcd6f`

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