PDF malware analysis — malicious · 56efa422fa71302c

MALICIOUS

PDF

45.0 KB Created: 2021-06-08 01:35:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 7b134e4f12497cae29e05e327a5b846a SHA-1: 0fc27a03f030489235b703b1e36ebd5d160bda3c SHA-256: 56efa422fa71302c8e8696854fcf17bf26c71753818525f3d94bd354b804deeb

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links and a call-to-action phrase, strongly suggesting a lure to download external content. The ML classifier and PDF link farm heuristics indicate malicious intent, likely to direct users to sites offering game cheats or hacks. While no scripts were directly extracted, the PDF structure and embedded URIs are indicative of a malicious document designed for user-driven payload acquisition.

Machine Learning

Nyx PDF Classifier malicious score 0.9865

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.tw/app/431946152/in-jack-hack-roblox-game-hack
- http://szekelymozes.ro/images/wwwcoin-master-hack-apk_GM406889139.pdf
- http://szekelymozes.ro/images/do-coin-master-hacks-work_GM406889139.pdf
- http://szekelymozes.ro/images/free-coin_GM406889139.pdf
- http://szekelymozes.ro/images/coin-master-free-spin-and-coin-link-haktuts-hacking-news_GM406889139.pdf
- http://szekelymozes.ro/images/roblox-goradiel-rpg-4-hacked_GM431946152.pdf
- http://szekelymozes.ro/images/coin-master-daily-free-spins-link-today-2021_GM406889139.pdf
- http://szekelymozes.ro/images/coin-master-free-spins-and-coins_GM406889139.pdf
- http://szekelymozes.ro/images/coin-master-free-spins-link-blogspot-today_GM406889139.pdf
- http://szekelymozes.ro/images/free-coins-on-coin-master-2021_GM406889139.pdf
- http://szekelymozes.ro/images/free-robux-present-for-roblox_GM431946152.pdf
- http://szekelymozes.ro/images/coin-master-free-spins-2021-apk_GM406889139.pdf
- http://szekelymozes.ro/images/coin-master-hack-2021_GM406889139.pdf
- http://szekelymozes.ro/images/minecraft-free-computer-game_GM479516143.pdf
- http://szekelymozes.ro/images/free-robux-gift-card-codes-2021_GM431946152.pdf
- http://szekelymozes.ro/images/roblox-com-free_GM431946152.pdf
- http://szekelymozes.ro/images/roblox-cheat-engine-robux-hack-2021_GM431946152.pdf
- http://szekelymozes.ro/images/minecraft-app-free-download_GM479516143.pdf
- http://szekelymozes.ro/images/easy-how-to-get-free-robux_GM431946152.pdf
- http://szekelymozes.ro/images/what-games-give-you-robux_GM431946152.pdf
- http://szekelymozes.ro/images/how-do-you-get-free-robux-on-roblox_GM431946152.pdf
- https://www.roblox.com
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off000051a9.bin` `85b299f65eb4dccfb1d2f9f4a8a5bff2e1b4c287a7ec4dcfff2b0b93727fb66c`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x51A9	26020 bytes
`font_01_sfnt_off00008d39.bin` `aa5f4b64c9ce4fffa71112d06aac572183782c10df0791d7eb8d0c01bdb05f36`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x8D39	18348 bytes

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