PDF malware analysis — malicious · 3edcb0d52222d748

MALICIOUS

PDF

45.1 KB Created: 2021-05-15 04:10:13 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 79ea0e6062c83bf7a5819a25ec3ac24e SHA-1: 7e39397de4e06944c8c8002f431b004a689f0933 SHA-256: 3edcb0d52222d7486bf21d93e841800643ad4dd1c8d14b6944d3fee9c3bb94b7

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous links to external websites, many of which are structured as SEO-optimized PDF gateways for game-related cheats and hacks. The ML classifier strongly indicated maliciousness, and the presence of a download button lure further supports a deceptive intent. The document's primary function appears to be directing users to potentially malicious or scam-related content.

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 https://netcdn.xyz/app/431946152/how-to-get-free-robux-for-kids-game-hack
- https://www.acacss.com/images/coin-master-free-coins-link-blogspot_GM406889139.pdf
- https://www.acacss.com/images/free-spins-for-coin-master-hack_GM406889139.pdf
- https://www.acacss.com/images/free-robux-download_GM431946152.pdf
- https://www.acacss.com/images/blogger-free-spins-and-coins_GM406889139.pdf
- https://www.acacss.com/images/free-promo-codes-for-robux_GM431946152.pdf
- https://www.acacss.com/images/free-robux-generator-no-survey-no-download-no-human-verification_GM431946152.pdf
- https://www.acacss.com/images/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdf
- https://www.acacss.com/images/how-to-get-free-shirts-on-roblox_GM431946152.pdf
- https://www.acacss.com/images/orewards-com-free-robux_GM431946152.pdf
- https://www.acacss.com/images/minecraft-hack-app_GM479516143.pdf
- https://www.acacss.com/images/coin-master-free-spins-link-today-new_GM406889139.pdf
- https://www.acacss.com/images/coin-master-hack-apk_GM406889139.pdf
- https://www.acacss.com/images/coin-master-daily-free-spins-link-blogspot_GM406889139.pdf
- https://www.acacss.com/images/coin-master-mod-apk-unlimited-spin-download-free-full-version_GM406889139.pdf
- https://www.acacss.com/images/free-game-pack-with-google-play-coin-master_GM406889139.pdf
- https://www.acacss.com/images/minecraft-esp_GM479516143.pdf
- https://www.acacss.com/images/minecraft-games-free-to-play-online_GM479516143.pdf
- https://www.acacss.com/images/roblox-free-roblox_GM431946152.pdf
- https://www.acacss.com/images/boost9-com-roblox-hack_GM431946152.pdf
- https://www.acacss.com/images/how-to-get-free-robux-no-scam_GM431946152.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_003_off000048cb.bin` `40c78a62a4c3a4451d7f4a942987c4d785aec84aae27c9bd69ed3ec052ca5a40`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x48CB	29840 bytes
`font_01_sfnt_off00008d4e.bin` `d8259766cf036cd113d0b26237eaaf1c704bfb1290fa2ba3336ef80e6ae93167`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D4E	18576 bytes

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