PDF malware analysis — malicious · 1fcd7f312db7e16d

MALICIOUS

PDF

34.7 KB Created: 2021-07-09 06:48:51 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04

MD5: 31c575b4011e0e36544e8e734478f1fd SHA-1: d002741b70911c65272fcbaf33977dd6cbc608e1 SHA-256: 1fcd7f312db7e16d653beb1ea4368ffb76596afe3bde8e0d39fb25d49511c6f2

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/i-want-robux-game-hack PDF link annotation
- https://affinityinsure.ca/files/coin-master-free-spins-may-11-2021_GM406889139.pdfIn PDF document text
- https://affinityinsure.ca/files/pokemon-go-free-incense-promo-code_GM1094591345.pdfIn PDF document text
- https://affinityinsure.ca/files/can-you-get-minecraft-for-free-on-pc_GM479516143.pdfIn PDF document text
- https://affinityinsure.ca/files/roblox-hack-generator_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/roblox-hack-client_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/roblox-font-free_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/how-to-get-free-shirts-roblox-2021_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/free-roblox-templates_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/robux-robux_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/i-cant-get-free-spins-coin-master_GM406889139.pdfIn PDF document text
- https://affinityinsure.ca/files/robux-com-roblox_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/how-to-get-robux-easy_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/robloox-hack-como-tener-robux-gratis-decienbre-2021_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/free-emojis-that-work-on-roblox-servers_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/free-robux-gift-cards-reddit_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/minecraft-free-minecoins_GM479516143.pdfIn PDF document text
- https://affinityinsure.ca/files/free-robux-no-human-verification-2021_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/how-to-hack-roblox-accounts_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/hack-roblox-pc-sur-jailbreak-2021_GM431946152.pdfIn PDF document text
- https://affinityinsure.ca/files/give-free-robux_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_off00002ec1.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x2EC1	23132 bytes
SHA-256: `370c5e03fd5da8140d0c02c399bd4bb198a609544a0c22e30fdd57f654da586b`
`font_01_sfnt_off000062c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x62C2	18852 bytes
SHA-256: `70b6914cb60ac35d8cb8fec591399a6d82b1f31f0203b16536a8cba000ae2339`

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