PDF malware analysis — malicious · 562ba74a0f3817a3

MALICIOUS

PDF

36.5 KB Created: 2021-07-09 00:03:55 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-17

MD5: b34a0dd52ca0cefad1479c75317f2b4c SHA-1: d22186b951055aa3d7c7da3f3649e737b745cff8 SHA-256: 562ba74a0f3817a3774cf1d69a212a7ebac802fe08f07913b68e74179e6d8418

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment T1204.002 Malicious Link

This PDF document contains numerous links to external websites, many of which are related to game cheats and free currency, indicating a likely phishing or malware distribution lure. The ML classifier strongly flagged this PDF as malicious, and the presence of a link farm heuristic further supports this assessment. The document body, though partially corrupted, contains references to game-related terms and URLs, reinforcing the lure.

Machine Learning

Nyx PDF Classifier malicious score 0.9980

Heuristics 4

Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM

Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
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/robuxy-com-free-robux-game-hack PDF link annotation
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-free-redeem-code_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-to-hack-roblox-to-get-robux_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-robux-glitch-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-to-hack-roblox-account-on-mobile-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/is-minecraft-realms-free_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/master-coin-free-spin-daily_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/hack-teleport-roblox-jailbreak-2021_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/roblox-com-cheats-for-tix_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/coin-master-unlimited-free-spins_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-spin-coin-master-game_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/minecraft-free-education_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/minecraft-esp_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/hacked-version-of-roblox-ios_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-to-hack-roblox-paintball-rank_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/minecraft-aimbot_GM479516143.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/como-sacar-buen-puntaje-en-juego-coin-master-free-spins_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/bloxton-interview-center-anti-cheat-roblox_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-vip-server-roblox-battle_GM431946152.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/free-coins-coin-master-hack_GM406889139.pdfIn PDF document text
- https://promidiapropaganda.com.br/modules/default/fotos/uploads/files/how-to-hack-roblox-accounts-2021-zero_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_off000036b7.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x36B7	22672 bytes
SHA-256: `f7a005d2517ac2b6224bad7c2df72ff0f9e5b31d71d4c42d04feea216fc5ab65`
`font_01_sfnt_off00006995.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6995	19156 bytes
SHA-256: `b91dd01bf7aa8d90f2367b3a0684131ce65c63b3af9073ea9819d735ead4d135`

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