PDF malware analysis — malicious · c6726fc42ffced1b

MALICIOUS

PDF

34.8 KB Created: 2021-06-20 02:15:54 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-01

MD5: 10207fa7b5376dd85117ae580983066c SHA-1: 1b825f395491bbef998c4307f203b69904100e31 SHA-256: c6726fc42ffced1ba04509deecc81dac08484cd629a73cd90d038482d6e00aa6

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.co/app/431946152/how-to-hack-free-stuff-in-catalog-in-roblox-game-hack PDF link annotation
- https://foc.vn/public/upload/files/tiktok-free-promotion_GM835599320.pdfIn PDF document text
- https://foc.vn/public/upload/files/master-coins-free_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-free-spins-hack-no-human-verification_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/oprewards-com-earn_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-roblox-catalog-hack_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-gift-card-online-free_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-robux-no-generator_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/free-robux-hacker-us_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/hack-coin-master-app_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/does-roblox-track-the-ip-of-the-hacker_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-hacks-no-surveys_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/how-to-get-free-robux-easy-2021_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/minecraft-reach-hack_GM479516143.pdfIn PDF document text
- https://foc.vn/public/upload/files/coin-master-daily-free-spins-link-2021_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/how-to-et-robux-for-free_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/pig-master-coin-master-free-spin_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/moonactive-free-spins-link_GM406889139.pdfIn PDF document text
- https://foc.vn/public/upload/files/how-to-hack-a-roblox-account-2021_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/roblox-free-items_GM431946152.pdfIn PDF document text
- https://foc.vn/public/upload/files/easy-how-to-get-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_off0000317e.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x317E	22136 bytes
SHA-256: `20eb6e1ddd35649e399f4cb6b7b0053dc1f4fd7996cd23ea8d3231c20d619c4f`
`font_01_sfnt_off00006272.bin`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x6272	19228 bytes
SHA-256: `836c06da82f26fce960e0c2368a80df7e0480234e3ed221983ab5a25607e8cba`

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