PDF malware analysis — malicious · 60d1b8e4d75d2781

MALICIOUS

PDF

50.9 KB Created: 2021-06-08 20:44:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-25

MD5: bd7d31c4cedc3c2c01b9bf709246f27e SHA-1: 20f44a6e6892091e1b4f3a8e698def42c4464d04 SHA-256: 60d1b8e4d75d2781d04d11fe3e9bb72e508a4414c10af7461c1cdc7c219ee264

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 0.9724

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 https://netcdn.tw/app/431946152/how-to-hack-roblox-with-roblox-plus-game-hack PDF link annotation
- https://zosnow.com/wp-content/uploads/fsqm-files/roblox-hack-com_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/coin-master-daily-free-spins-link-today_GM406889139.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/free-robux-without-doing-anything_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/how-to-hack-roblox-games_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/roblox-free-card-codes-december-2021_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/roblox-wikipedia-free-encyclopedia_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/is-minecraft-free_GM479516143.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/ways-hacks-robux_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/roblox-mod-menu-download-free_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/classic-minecraft-net-hacks_GM479516143.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/free-items-robloxcom_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/genewin-how-to-get-free-robux_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/does-roblox-give-free-robux_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/roblox-jump-hack-2021_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/free-robux-no-human-verification-or-survey_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/works-how-to-get-free-robux-2021-fast-amp_GM431946152.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/free-minecraft-server-hosting_GM479516143.pdfIn PDF document text
- https://zosnow.com/wp-content/uploads/fsqm-files/admin-hack-script-roblox_GM431946152.pdfIn PDF document text
- http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`font_00_sfnt_off00005162.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x5162	31068 bytes
SHA-256: `04d99cea23b0832b74fca57979f389592bb43840d2cc14f872e168d657536e72`
`font_01_sfnt_off00009800.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9800	2844 bytes
SHA-256: `baad2f3f6808f4af03fa9398e38c580c8d846f7f773a947d8cc1f39b2753d31a`
`font_02_sfnt_off0000a1c2.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0xA1C2	19228 bytes
SHA-256: `886ee53ebdef899f38fb0977ca53dac842ac507a675ad69063b3ff7bde7b9394`

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