Malicious PDF — malware analysis report

Static analysis result for SHA-256 85986bed3cc4614b…

MALICIOUS

PDF

44.9 KB Created: 2021-06-03 23:02:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: f2717e454154e81e26b39ad27a351182 SHA-1: 2a90ab081f519c32ad3601ef534cc52d34c646e5 SHA-256: 85986bed3cc4614bd7894c58f03fc7bf01bdf1881abb4cf5c5f5ca4304d3e565
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains numerous embedded links to external websites, many of which appear to be part of a link farm designed to attract traffic. The document body, though heavily obfuscated, contains references to 'free Minecraft Capes' and a URL that suggests a game-related lure. The presence of many external links and the ML classifier's high confidence score indicate a malicious intent, likely to redirect users to sites hosting malware or phishing content.

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.online/app/479516143/free-minecraft-capes-game-hack
    • http://library.acehresearch.org/repository/legit-free-spins-coin-master_GM406889139.pdf
    • http://library.acehresearch.org/repository/80-free-spins-coin-master_GM406889139.pdf
    • http://library.acehresearch.org/repository/free-robux-games-that-actually-work-2021_GM431946152.pdf
    • http://library.acehresearch.org/repository/roblox-com-free_GM431946152.pdf
    • http://library.acehresearch.org/repository/blogspot-free-spins-coin-master_GM406889139.pdf
    • http://library.acehresearch.org/repository/free-spins-from-coin-master_GM406889139.pdf
    • http://library.acehresearch.org/repository/how-to-hack-roblox-for-robux_GM431946152.pdf
    • http://library.acehresearch.org/repository/coin-master-free-spins-hack-no-human-verification_GM406889139.pdf
    • http://library.acehresearch.org/repository/coin-master-free-pet-food-links_GM406889139.pdf
    • http://library.acehresearch.org/repository/coin-master-on-facebook_GM406889139.pdf
    • http://library.acehresearch.org/repository/www-coin-master-hack-xyz_GM406889139.pdf
    • http://library.acehresearch.org/repository/free-spins-for-coin-master-2021_GM406889139.pdf
    • http://library.acehresearch.org/repository/how-to-get-free-robux-hack-2021_GM431946152.pdf
    • http://library.acehresearch.org/repository/get-me-robux-for-free_GM431946152.pdf
    • http://library.acehresearch.org/repository/minecraft-free-ios_GM479516143.pdf
    • http://library.acehresearch.org/repository/client-minecraft_GM479516143.pdf
    • http://library.acehresearch.org/repository/roblox-free-clothes-hack_GM431946152.pdf
    • http://library.acehresearch.org/repository/coin-master-links-for-free-spins_GM406889139.pdf
    • http://library.acehresearch.org/repository/minecraft-bedrock-free-download_GM479516143.pdf
    • http://library.acehresearch.org/repository/free-robux-generator-no-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000055f1.bin
3a8de5591181ad4152eb239d3cfc7bcb28251080d78e391600c9dc4c52112043		 pdf-font-stream PDF embedded font (sfnt) at offset 0x55F1 25436 bytes
font_01_sfnt_off00008e98.bin
dedc931f5c8bac627c7a83c769fddbd093390c6d69f02f50ba531346133b4d17		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8E98 17744 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.