PDF malware analysis — malicious · d05ed5ae022292b5

MALICIOUS

PDF

41.4 KB Created: 2021-05-17 12:45:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: c17cf758c0b5c34c0bfa8c09d061b63a SHA-1: 0bb37549ab987ba6cecfc90242a77539008e38e2 SHA-256: d05ed5ae022292b558d6c9a90549054b53589c8551e3ff2ba87405b93f112c43

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 link farms for game-related cheats and free items. The presence of a download button lure and ML classification further supports malicious intent. The primary goal appears to be directing users to potentially malicious or scam-related content hosted on external domains.

Machine Learning

Nyx PDF Classifier malicious score 0.9971

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/406889139/coinmaster-game-hack
- http://www.fluidtech.hu/images/how-to-get-more-spins-on-coin-master-for-free_GM406889139.pdf
- http://www.fluidtech.hu/images/free-roblox-clothes-2021_GM431946152.pdf
- http://www.fluidtech.hu/images/minecraft-texture-packs-free-download_GM479516143.pdf
- http://www.fluidtech.hu/images/coin-master-hack-online-without-human-verification_GM406889139.pdf
- http://www.fluidtech.hu/images/how-to-get-free-robux-by-playing-games_GM431946152.pdf
- http://www.fluidtech.hu/images/free-minecraft-bedrock-server-hosting_GM479516143.pdf
- http://www.fluidtech.hu/images/minecraft-free-no-download_GM479516143.pdf
- http://www.fluidtech.hu/images/how-to-get-free-robux-on-roblox-2021_GM431946152.pdf
- http://www.fluidtech.hu/images/how-to-get-free-robux-for-free_GM431946152.pdf
- http://www.fluidtech.hu/images/coin-master-free-spin-and-trading-group_GM406889139.pdf
- http://www.fluidtech.hu/images/coin-master-coins-free_GM406889139.pdf
- http://www.fluidtech.hu/images/coin-master-free-spins-daily-link-updated_GM406889139.pdf
- http://www.fluidtech.hu/images/minecraft-bedrock-server-hosting-free_GM479516143.pdf
- http://www.fluidtech.hu/images/free-robux-2021_GM431946152.pdf
- http://www.fluidtech.hu/images/roblox-generator_GM431946152.pdf
- http://www.fluidtech.hu/images/cone-master_GM406889139.pdf
- http://www.fluidtech.hu/images/how-do-you-get-free-robux-without-paying_GM431946152.pdf
- http://www.fluidtech.hu/images/how-to-hack-coin-master_GM406889139.pdf
- http://www.fluidtech.hu/images/facebook-coin-master_GM406889139.pdf
- http://www.fluidtech.hu/images/robux-offers_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_off00004937.bin` `403b1dd00ce2cdd12cbb6bb239b870aa4204f2fcb975fefdfe173d9ab3358108`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x4937	24440 bytes
`font_01_sfnt_off000080be.bin` `af208cdb45bd073d7b5ba90b2b5d7fe18c625e7bd90d48e59b2ee82d337b8146`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x80BE	17808 bytes

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