PDF malware analysis — malicious · 9193c5dea29cb6f0

MALICIOUS

PDF

35.5 KB Created: 2021-07-07 04:24:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-22

MD5: bb6b44852b96f3c73ebfb185b695c732 SHA-1: 1d2008aafb45534b1fc97aaf34988fb317bdf815 SHA-256: 9193c5dea29cb6f08dfb5e129d68c48b2d273891805c3639908feabc92a6fe9f

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/free-roblox-accounts-with-robux-game-hack PDF link annotation
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/ways-to-get-free-robux-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/best-free-hacked-client_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/real-free-robux-codes_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-free-robux-no-human-verification_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/dll-hack-roblox-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-to-get-1-million-robux-for-free-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-do-you-get-free-tiktok-followers_GM835599320.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-cheat-gg_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-person_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-minecraft-skins-java_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/boost-vector-roblox-hack_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/blox-fish-free-robux_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-game-hacks_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-redeem-code-roblox-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-blox-no-hero-academia-how-to-get-free-spins_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/hack-robux_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-robux-no-survey_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/5-games-on-roblox-that-give-you-free-robux_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-rewards-2021_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/hack-coin-master-32-mod-apk_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
`font_00_sfnt_off00003384.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x3384	22176 bytes
SHA-256: `7d25cb9a4e855b46c32cb6b4d5086e230867648a529b2978fa5866760e4426ed`
`font_01_sfnt_off000064d0.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x64D0	19376 bytes
SHA-256: `f0162913020963e5353758c8abfc28ea25b7e1d49227c6af753a68a32515d33f`

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