PDF malware analysis — malicious · 9352a80b7b8492e6

MALICIOUS

PDF

34.6 KB Created: 2021-06-29 08:23:20 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13

MD5: 77b053d1c5f3de9025e5f99b9dd1be77 SHA-1: 09ac5ab36a176f744eb693d08ce6230a82919bc8 SHA-256: 9352a80b7b8492e6945798778bb91060d660e4fbc2cbf431519004cfc5ff4f06

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are related to game hacks and in-game currency. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a link farm designed to attract traffic. The ML classifier also flagged this PDF as malicious with high confidence. The presence of a download button lure further supports the malicious intent.

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.co/app/431946152/how-2-hack-roblox-for-robux-game-hack PDF link annotation
- https://dolphintour.vn/images/uploadsfiles/how-to-earn-robux-by-playing-games_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/minecraft-bedrock-edition-free-with-java_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/cone-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/roblox-jaubreak-hack-script_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-gold-cards-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-heaven-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/flame-gg-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/coin-master-free-spins-and-coins_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/get-free-robux-in-1-minute_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/how-to-get-minecraft-for-free-on-xbox-one_GM479516143.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/tiradas-coin-master_GM406889139.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/hack-roblox-plusieur-onglet_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-not-fo-sale-roblox-templates_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/pink-lobster-ru-5c20212021846-roblox-hack-pro-cheat-exe-32e22_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-credit-card-to-buy-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-no-downloads-and-no-email-all-free_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/www-bandicam-com-free-robux_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/tiktok-free-printables_GM835599320.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/glotis-how-to-get-free-robux-youtube_GM431946152.pdfIn PDF document text
- https://dolphintour.vn/images/uploadsfiles/free-robux-roblox-promo-codes_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_off0000307a.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x307A	22236 bytes
SHA-256: `2160fe6f2a5fb71707e3762e25b1808f60b4d5988f25584cc037805fc164cba9`
`font_01_sfnt_off000061b3.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x61B3	19248 bytes
SHA-256: `5f6d097905e6ec28337501bea0810548f7ab738f6e238afdbddb5f7bc77b0b0d`

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