PDF malware analysis — malicious · 662ecf4625a71565

MALICIOUS

PDF

47.0 KB Created: 2021-05-31 17:01:06 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)

MD5: 3ae197cf9b90a783729be98e892a30eb SHA-1: f6f8337642541081232f7edaf1427a4d17c15676 SHA-256: 662ecf4625a7156595867cbc74fbc9e754b3cbf43b810c9d46ab6a83fcc0f2ff

102 Risk Score

Malware Insights

MITRE ATT&CK

T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded links, many of which point to SEO-optimized PDF files related to game hacks and free items, suggesting a link farm or phishing attempt. The primary URL, 'https://netcdn.xyz/app/431946152/how-to-get-free-robux-august-2021-27th-game-hack', is likely the intended destination for users seeking free Robux, which is a common lure for scams or malware distribution. No scripts were extracted, but the presence of many external links and the ML classification indicate malicious intent.

Machine Learning

Nyx PDF Classifier malicious score 0.9832

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-august-2021-27th-game-hack
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-minecraft-hosting_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-free-robux-on-roblox-fast-and-easy_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/best-free-outfits-roblox_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-tiktok-accounts_GM835599320.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/hacks-for-roblox-o-survey_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spin-codes_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-hack-roblox-games_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/packet-of-world-free-roblox_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/best-free-clothing-for-roblox-war-group_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-tiktok-accounts-with-followers_GM835599320.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-spins-promo-code_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/minecraft-online-free-no-download_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-hack-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/free-robux-without-verification-2021_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/daily-free-spins-for-coin-master_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/give-me-free-robux_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-have-a-mad-city-roblox-hack_GM431946152.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/haktuts-coin-master-free-daily-spins_GM406889139.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/how-to-get-minecraft-for-free_GM479516143.pdf
- https://hundt-druck.de/wp-content/uploads/fsqm-files/coin-master-free-cards_GM406889139.pdf
- http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

Filename	Kind	Source	Size
`stream_004_off0000549b.bin` `14a500d1e490b0e0e3059b9ef343a18e7706614a974e3f4e18a42639bb0b6ffb`	decompressed-pdf-stream	PDF FlateDecoded stream at offset 0x549B	26896 bytes
`font_01_sfnt_off00009235.bin` `7307eec6a3019e978059f479df1d56b9be23b27657436644ade503c657585836`	pdf-font-stream	PDF embedded font (sfnt) at offset 0x9235	19192 bytes

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