PDF malware analysis — malicious · a3b60d3f43848d3f

MALICIOUS

PDF

28.5 KB Created: 2021-05-10 19:34:44 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-05

MD5: 4eafa865f880a89abfaf5c2af5eb4c59 SHA-1: b5395d6afe251b86772f3b3092fce32c6b2f2fd4 SHA-256: a3b60d3f43848d3f917dfa139376ccbf2a12bc7a85151cb93a593bef6ed1dce3

82 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

This PDF document employs a common lure of 'free Robux' and game hacks to entice users. It contains numerous embedded URLs, with a primary one pointing to a suspicious domain. The ML classifier and specific heuristics for game hack redirects strongly indicate malicious intent, likely to lead users to phishing sites or download further malware.

Machine Learning

Nyx PDF Classifier malicious score 0.9747

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/431946152/free-robux-groups-2021-game-hack PDF link annotation
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-only-username-no-human-verification_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-legally-get-free-spins-in-coin-master_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-coins-and-spins-hack_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/minecraft-free-download-mac_GM479516143.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-spin-link-free_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/daily-spin_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-roblox-followers-generator_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-no-offers_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spin-reward-links_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-spins-link-blogspot-today_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-com-2021_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-free-stuff_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/hacks-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/is-there-any-way-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/how-to-get-free-robux-on-phone_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-daily-free-spins-link-haktuts_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/flame-gg-free-robux_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/free-robux-on-ipad_GM431946152.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/coin-master-codes_GM406889139.pdfIn PDF document text
- https://khavarrooy.com/assets/uploads/pages/files/minecraft-handbook_GM479516143.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
`font_00_sfnt_off00002227.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2227	19664 bytes
SHA-256: `fd80aada608e94ea2570ee1a83634e7028db80344e4d5e3f9661388d2b748364`
`font_01_sfnt_off00004b98.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x4B98	18592 bytes
SHA-256: `40c688a228a34b1cb0523430700763228a7eb04120cc8b5f4f4e5fd2bdb4007a`

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