Malicious PDF — malware analysis report

Static analysis result for SHA-256 bc1f1d8080d36c1a…

MALICIOUS

PDF

34.1 KB Created: 2021-06-29 23:13:03 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: c46f9e85a0d994f7f02e776290fd7623 SHA-1: 1fd78d3f72818fec59b72b5ae58931d5ba989834 SHA-256: bc1f1d8080d36c1a25072a4fe9e2151b044d7af1a5727da5831b31ff5995bab5
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous links to external websites, many of which are hosted on domains associated with game cheats and hacks, specifically for Roblox. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a malicious intent to redirect users to potentially harmful content or downloads. The presence of a download button lure further supports this. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

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 http://netcdn.co/app/431946152/roblox-dance-your-blox-off-cheats-to-get-points-game-hack
    • http://www.thecoffeebaron.co.za/images/cheats-for-ninja-legends-roblox_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/best-sword-in-fight-the-monster-roblox-hack-download_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/roblox-adopt-me-free-plush_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/free-spins-coin-master-links-blogspot_GM406889139.pdf
    • http://www.thecoffeebaron.co.za/images/free-robux-sin-verificacion-humana_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/free-codes-for-free-robux_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/how-to-hack-without-downloading-anything-roblox_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/what-to-do-if-you-get-hacked-on-roblox_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/jump-fly-hack-roblox_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/wahoo-gaming-co-free-robux_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/roblox-hacked-com-2021_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/hacks-para-roblox-sin-virus_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/counter-roblox-cheat_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/how-to-free-robux-100-virus_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/how-to-get-hacks-on-roblox-streets_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/how-to-get-free-clothe-roblox_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/where-to-buy-pubg-uc-cheap_GM1330123889.pdf
    • http://www.thecoffeebaron.co.za/images/noclip-roblox-cheat-engine-2021_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/unjailbreak-hack-roblox-2021_GM431946152.pdf
    • http://www.thecoffeebaron.co.za/images/shirt-codes-for-roblox-free-shipping_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002c0d.bin
3cefcbd05b94f3ebefc24e8f658feae85d79eaf8fc58e2b080c9726f77e43216
pdf-font-stream PDF embedded font (sfnt) at offset 0x2C0D 23004 bytes
font_01_sfnt_off00005f81.bin
7e82c9a6e920b9c2b6b29b2de7ce795325fef42b40597dac03effbfdedfa0a51
pdf-font-stream PDF embedded font (sfnt) at offset 0x5F81 19500 bytes