Malicious PDF — malware analysis report

Static analysis result for SHA-256 3970110325150150…

MALICIOUS

PDF

35.4 KB Created: 2021-07-05 23:42:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 540ac951d4f8a135a994682aa489d9da SHA-1: abf6b7ba8fdd506e74b179df0ea2247ff6c5e2fe SHA-256: 397011032515015099bb974c9ac66ba317990d8c0dfdc63bc5e471356283dd5b
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious File

The PDF document contains numerous links to external resources, many of which are presented as game hacks or cheats. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of these links, suggesting a tactic to drive traffic to potentially malicious content. The ML classifier also strongly flagged this PDF as malicious, reinforcing the assessment that it is designed to lure users into downloading harmful files.

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.tw/app/406889139/coin-master-pet-food-hack-game-hack
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/hack-version-of-coin-master_GM406889139.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/coin-master-hacks-for-gold-cards_GM406889139.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/play-minecraft-pocket-edition-for-free_GM479516143.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/free-robux-groups-on-roblox_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/coin-master-free-spin-links-december-30-2021_GM406889139.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/roblox-uno-hack_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/minecraft-server-free-trial_GM479516143.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/best-way-to-get-free-and-easy-robux-fast_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/how-to-get-free-robux-on-chromebook_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/free-robux-redeem-codes-2021_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/is-minecraft-free-on-ps4_GM479516143.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/a-roblox-profile-have-russia-profile-free_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/is-minecraft-free-on-xbox-one_GM479516143.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/coin-free-spin_GM406889139.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/roblox-blue-aldias-tshirt-free_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/aternos-free-minecraft-server_GM479516143.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/dominus-roblox-free_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/free-roblox-accounts-2021-with-robux_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/01-conoce-este-hack-oficial-robux_GM431946152.pdf
    • http://www.lbhbali.or.id/new/public/ckfinder/userfiles/files/impact-minecraft-hack_GM479516143.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003424.bin
25dde401bff3fd07faefb9cfc4201bc83253a3550b775b9a05ebfd823c22d0c8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x3424 22764 bytes
font_01_sfnt_off0000670d.bin
3efe635c010e4f7343278e6af4851d95998f8a18e6dc23db02e30b8169d2591e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x670D 18496 bytes

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