Malicious PDF — malware analysis report

Static analysis result for SHA-256 e71d619ded4faad9…

MALICIOUS

PDF

33.3 KB Created: 2021-06-29 08:13:34 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 016211117ca278aa117943c364c18f44 SHA-1: 6bf6e3d6389927d9c669a1986775f0535dbf6421 SHA-256: e71d619ded4faad9aeb30e3bbd33d4efd3514232b8b3634f9a872b202cba8a76
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains numerous embedded URLs and a document body that promotes game cheats and hacks, indicating a lure for users to download malicious content. The heuristic 'PDF_SEO_LINK_FARM' and the ML classification strongly suggest malicious intent. The presence of a 'SE_PASSWORD_ARCHIVE_LURE' heuristic implies that the linked content might be password-protected to evade initial security checks.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Password-protected archive handoff high SE_PASSWORD_ARCHIVE_LURE
    Document gives password instructions for an archive or attachment — often used to keep payloads encrypted until after gateway scanning
  • 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/how-to-get-free-coins-in-assassin-roblox-2021-game-hack
    • http://opac.kolejkrim.edu.my/repository/free-daily-spins-coin-master-2021_GM406889139.pdf
    • http://opac.kolejkrim.edu.my/repository/robux-websites-that-work_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/hacks-to-get-free-robux_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/como-ser-hacker-en-roblox-en-grand-blox-auto_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/coin-master-spin-hack-no-human-verification_GM406889139.pdf
    • http://opac.kolejkrim.edu.my/repository/free-black-hair-roblox_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/free-robux-without-human-verification_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/robux-free-gift-card-org-hack_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/free-roblox-catolog-codes_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/hacking-apps-for-roblox_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/bloxpink-free-robux_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/how-to-get-free-spins-for-coin-master_GM406889139.pdf
    • http://opac.kolejkrim.edu.my/repository/how-to-hack-a-account-on-roblox-2021_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/how-to-get-minecraft-windows-10-for-free-2021_GM479516143.pdf
    • http://opac.kolejkrim.edu.my/repository/roblox-getting-hacked_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/how-to-hack-people-on-roblox_GM431946152.pdf
    • http://opac.kolejkrim.edu.my/repository/coin-master-pet-food-hack_GM406889139.pdf
    • http://opac.kolejkrim.edu.my/repository/free-spins-coin-master-2021_GM406889139.pdf
    • http://opac.kolejkrim.edu.my/repository/get-free-spins-coin-master_GM406889139.pdf
    • http://opac.kolejkrim.edu.my/repository/how-do-u-get-free-robux-2021_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002dcf.bin
afae3bb974fe9d6fe512735f7df7835d4913220ab9edb9204b4b668ac063260e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2DCF 21140 bytes
font_01_sfnt_off00005b94.bin
133958083cdf426ef8402adee1cf93dc9f5a8c0e526d888f44ff6a8d5cab2026		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B94 19440 bytes

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