Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc1674951e7a28a2…

MALICIOUS

PDF

35.8 KB Created: 2021-07-01 07:32:01 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 231d439737f96e3e236cc56a4049e562 SHA-1: fdd6976b435f5aa4e835805d6cde530997aad08a SHA-256: fc1674951e7a28a23a277bbdae6d8d28b2588f341094658643fb7632fead6a7c
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded links, many of which are presented as download lures for game-related items like Robux or Coin Master spins. The document body explicitly mentions 'Free Robux Giver No Download' and includes URLs pointing to external resources. This suggests a phishing or scam attempt to trick users into visiting malicious sites or downloading unwanted software.

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/free-robux-giver-no-download-game-hack
    • http://lib.fekon.untad.ac.id/repository/wurst-commands_GM479516143.pdf
    • http://lib.fekon.untad.ac.id/repository/free-roblox-gift-card-codes_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spins-link-2021_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/how-to-make-a-free-server-in-minecraft-java_GM479516143.pdf
    • http://lib.fekon.untad.ac.id/repository/roblox-witch-hat-free_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/spin-coin-master-hack_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/free-roblox-redeem-codes-2021_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/best-free-spins-for-coin-master_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/roblox-hack-november-2021_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/robux-hack-by-villarnor-gelerb-2021_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-daily-free-coins-link_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-hack-online-pc_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/roblox-free-jeff-the-killer-cape_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/hack-roblox-egg-farm-simulator_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/master-hack-coin_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/coin-master-daily-free-rewards_GM406889139.pdf
    • http://lib.fekon.untad.ac.id/repository/hack-for-roblox-a-bizzare-day_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/free-robux-no-human-verification-generator_GM431946152.pdf
    • http://lib.fekon.untad.ac.id/repository/free-roblox-gift-card-codes-2021-unused_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000033da.bin
b14cb988f2f357bf110c2affc0dfd1c4d973de6097dce246c5d67ac4bacd42f8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x33DA 22360 bytes
font_01_sfnt_off00006595.bin
7517190fb8aadb3192554fbafb4543ad5a5afefa39eb0ad81b84015623716666		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6595 19532 bytes

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