Malicious PDF — malware analysis report

Static analysis result for SHA-256 488b8a47f274377e…

MALICIOUS

PDF

34.8 KB Created: 2021-06-25 15:54:40 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: b351315a7b0ad624423e73030d7ac9c6 SHA-1: 1854d0ea9540d3a52b18f6bf0aa25c336ca7fad5 SHA-256: 488b8a47f274377e6afd15eac94ad11efbee13286c3b1b488d3eba413b3b0e74
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a 'download button' lure, strongly suggesting a phishing or scam attempt to trick users into downloading malicious files. The ML classifier also flagged this PDF as malicious with high confidence. The presence of multiple external links, including one pointing to 'exploits-roblox-topkek-free-game-hack', indicates a likely attempt to distribute malware or facilitate further compromise.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

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/exploits-roblox-topkek-free-game-hack
    • http://elibrary.smknesbu.sch.id/repository/free-100-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-robux-now_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-free-pet-food_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/coin-master-hacks-for-iphone_GM406889139.pdf
    • http://elibrary.smknesbu.sch.id/repository/download-roblox-for-blackberry-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hack-download-for-pc_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-roblox-gift-card-no-scam_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-hacked-codes_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/free-roblox-promo-codes-for-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-free-robux-website_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-phantom-forces-hack-aimbot-redboy_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-cheat-codes-for-robux-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-martial-arts-bo-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/hack-para-roblox-dragon-ball-rage-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/minecraft-pe-free-download_GM479516143.pdf
    • http://elibrary.smknesbu.sch.id/repository/pastebin-roblox-vip-free-robux_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/roblox-pastebin-roblox-hack_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-get-a-free-face-on-roblox-2021_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/blox-rewards_GM431946152.pdf
    • http://elibrary.smknesbu.sch.id/repository/how-to-hack-oney-on-ud-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000308e.bin
aff64fd780dd976e82aec07b87d5f67cb14f290cafc2dea8e1d0a3da9cd6c5cf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x308E 22388 bytes
font_01_sfnt_off00006292.bin
c4bc319102caa3d550b97c9cd71a169791a8dc7d405a966865b18c58783f7b75		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6292 19220 bytes

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