PDF malware analysis — malicious · 1386565fddac6275

MALICIOUS

PDF

35.3 KB Created: 2021-07-03 18:25:57 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-02

MD5: d9bc46d89274acbfd2f491faf4ab0ae4 SHA-1: 00b7fdebc182ecaed0c8636f73a07a93d58839ac SHA-256: 1386565fddac6275b5f09481cbe9dc9c2c5036bb91db303f9c88f01cb0b405d7

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 0.9980

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 http://netcdn.tw/app/431946152/roblox-mm2-hacks-2021-game-hack PDF link annotation
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/inspect-robux-hack_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/roblox-hack-instalar_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/how-to-download-minecraft-for-free-on-iphone_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/coin-master-time-speed-hack_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-spins-for-coin-master_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/roblox-how-to-get-unlimited-free-robox-2021_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/codes-in-roblox-free_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/get-me-robux-for-free_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/urbx-club-get-free-robux_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-minecraft-servers-to-join_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-minecraft-accounts-reddit_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-robux-codes-deutsch_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-spins-coin-master-2021-app_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/hack-roblox-cods_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/free-robux-co_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/como-hackear-juego-coin-master_GM406889139.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/rbx-earn_GM431946152.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/download-minecraft-free-hiapphere_GM479516143.pdfIn PDF document text
- https://www.corporateprofessionals.com/uploaded_files/userfiles/files/roblox-deadzone-hack_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
`font_00_sfnt_off00003193.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3193	22544 bytes
SHA-256: `253b2bd0c20df1f0330d9a78b2de831fdd7c3be5772534a581bdba34a3a749d9`
`font_01_sfnt_off0000641c.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x641C	19328 bytes
SHA-256: `f6d8a03d8e54f8f694873c3613827fc92561f95913d0eced493af3fd07ad78ff`

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