PDF malware analysis — malicious · 6cfdf6446426174a

MALICIOUS

PDF

48.3 KB Created: 2021-06-03 08:24:12 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: fa7cd4b4ef7ea806111dc4223f1a384e SHA-1: aafc171a4bd69efd79adfd13bebb574fa958601f SHA-256: 6cfdf6446426174aa5917f5d7fb3ccf55c9ef3d7cf6af95fbb7ad27c46840cbb

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links to external websites that promise free game currency or cheats, a common lure for phishing or malware distribution. The ML classifier strongly indicated maliciousness, and the PDF structure suggests a link farm designed to redirect users to potentially harmful content. No scripts were extracted, but the embedded URLs are the primary indicators of malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9796

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.online/app/431946152/huskybuscom-free-robux-game-hack
- https://weddingcards-expert.tw/upload/files/how-do-you-get-free-robux-without-paying_GM431946152.pdf
- https://weddingcards-expert.tw/upload/files/how-to-get-free-coins-on-tiktok_GM835599320.pdf
- https://weddingcards-expert.tw/upload/files/hack-crack-for-coin-master-currency_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/easy-way-to-get-free-robux_GM431946152.pdf
- https://weddingcards-expert.tw/upload/files/free-coins-on-coin-master-generator_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/coin-master-viking-quest-hack_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/juego-hackeado-de-coin-master_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/coin-master-facebook_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/how-to-get-free-robux-codes_GM431946152.pdf
- https://weddingcards-expert.tw/upload/files/minecraft-net-free_GM479516143.pdf
- https://weddingcards-expert.tw/upload/files/get-free-followers-on-tiktok_GM835599320.pdf
- https://weddingcards-expert.tw/upload/files/free-spin-coin-master-link-2021_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/free-spins-coin-master-april-2021_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/easy-robux-hack_GM431946152.pdf
- https://weddingcards-expert.tw/upload/files/hackear-coin-master_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/no-scam-free-robux_GM431946152.pdf
- https://weddingcards-expert.tw/upload/files/coin-master-blogspot-free-spins_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/free-roblox-accounts-with-robux-2021_GM431946152.pdf
- https://weddingcards-expert.tw/upload/files/coin-master-free-spins-daily-link-game-mod_GM406889139.pdf
- https://weddingcards-expert.tw/upload/files/how-to-get-java-minecraft-free_GM479516143.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000051e7.bin` `dbb2b23bf6f06b62388be42ab50cc0cdf5b68ea35fe51cf144184bf0e6cdb3c7`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51E7	26992 bytes
`font_01_sfnt_off00008f9e.bin` `94c1b019735d7e491765340abe50b2897410e2ec65ecf141c08bd9f2220897c4`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8F9E	2824 bytes
`font_02_sfnt_off0000994d.bin` `f893a3bff8774b7ed5d4e22eaab63b6b5727efd4274e33d815ecbde6c17ee355`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x994D	18624 bytes

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