Malicious PDF — malware analysis report

Static analysis result for SHA-256 095309d5d41e9a2a…

MALICIOUS

PDF

33.0 KB Created: 2021-06-25 17:56:56 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 3e7976128cfe4cf5127e3a50f0a8b218 SHA-1: 2604089139c9801938751d013a0ffcbd862fc955 SHA-256: 095309d5d41e9a2ad8306dbd65924cd66c373b0c883f8495e0a728bc753dc3ca
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded links, many of which are structured as SEO-optimized slugs pointing to free Robux or game hacks. The primary external URI, http://netcdn.co/app/431946152/800-free-robux-ad-game-hack, suggests a lure for potentially malicious content. The document body and heuristics indicate a deceptive attempt to drive traffic to these links, likely for malware distribution or phishing.

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/431946152/800-free-robux-ad-game-hack
    • http://pustaka.pasca.unand.ac.id/repository/free-roblox-account-giveaway-may-7th-2021_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/free-promoting-groups-on-roblox_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-and-tickets-2021_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/how-to-hack-a-roblox-outfit_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/cheat-hacks-in-roblox-bee-swarm-simulator_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/get-free-robux_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/coin-master-free-spins-link-blogspot_GM406889139.pdf
    • http://pustaka.pasca.unand.ac.id/repository/free-minecraft-texture-packs_GM479516143.pdf
    • http://pustaka.pasca.unand.ac.id/repository/code-sur-free-boost-stands-anime-fighting-simulator-roblox_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/how-do-you-hack-roblox_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/hack-roblox-download_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/haktuts-coin-master-free-spins_GM406889139.pdf
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-co_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/how-to-use-cheats-on-roblox-deathrun_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/redeem-roblox-virtual-item-free-codes-2021_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/minecraft-java-free_GM479516143.pdf
    • http://pustaka.pasca.unand.ac.id/repository/free-robux-generator-no-verification-2021_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/best-roblox-girls-free-cloths_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/robux-generator-free-no-human-verification_GM431946152.pdf
    • http://pustaka.pasca.unand.ac.id/repository/is-it-impossible-to-get-free-robux_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002cf2.bin
5896d064d294d45f11356094268dbf9b74876d2cdc04cbca9e7aae5bcb885942		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2CF2 21196 bytes
font_01_sfnt_off00005ae8.bin
57a139b6bd59820da935014fdeae757a3edc3969c92a2c923c0b67498e00115f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5AE8 19272 bytes

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