Malicious PDF — malware analysis report

Static analysis result for SHA-256 8c612ba5b501b423…

MALICIOUS

PDF

33.9 KB Created: 2021-06-30 03:38:15 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4fda769d1ac3c37089839bfba0b6cdc1 SHA-1: 389ae5acabf890afd68ca4c7e5b5adcbc5eac379 SHA-256: 8c612ba5b501b4232b99a6f298a5be1778cd903872f5ac55c631b4f79e1f5436
102 Risk Score

Malware Insights

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

This PDF document contains numerous embedded URLs that lead to websites offering game hacks and cheats, such as for Minecraft and Roblox. The ML classifier and PDF link farm heuristics strongly indicate malicious intent, likely to trick users into downloading malware disguised as game cheats. No scripts were extracted from this sample.

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/479516143/minecraft-java-free-download-game-hack
    • http://io24.com.ar/images/roblox-hack-download-pc_GM431946152.pdf
    • http://io24.com.ar/images/how-to-get-free-robux-com_GM431946152.pdf
    • http://io24.com.ar/images/how-to-have-free-robux-in-roblox_GM431946152.pdf
    • http://io24.com.ar/images/can-you-get-minecraft-for-free_GM479516143.pdf
    • http://io24.com.ar/images/trigon-best-free-roblox-exploit_GM431946152.pdf
    • http://io24.com.ar/images/roblox-vehicle-simulator-hack-script_GM431946152.pdf
    • http://io24.com.ar/images/how-to-get-free-robux-legit-no-human-verification_GM431946152.pdf
    • http://io24.com.ar/images/who-to-get-free-shadow-item-pack-free-roblox_GM431946152.pdf
    • http://io24.com.ar/images/how-to-hack-money-in-jailbreak-roblox_GM431946152.pdf
    • http://io24.com.ar/images/hack-the-plaza-roblox_GM431946152.pdf
    • http://io24.com.ar/images/free-ipod-touch-roblox_GM431946152.pdf
    • http://io24.com.ar/images/roblox-apocalypse-rising-hack_GM431946152.pdf
    • http://io24.com.ar/images/descargar-roblox-hackeado-con-robux_GM431946152.pdf
    • http://io24.com.ar/images/robux-without-verification_GM431946152.pdf
    • http://io24.com.ar/images/coin-master-32-mod-hack-apk-download_GM406889139.pdf
    • http://io24.com.ar/images/is-minecraft-earth-free_GM479516143.pdf
    • http://io24.com.ar/images/roblox-follower-bot-free_GM431946152.pdf
    • http://io24.com.ar/images/roblox-follower-bot-service-free_GM431946152.pdf
    • http://io24.com.ar/images/free-roblox-roubux-generator_GM431946152.pdf
    • http://io24.com.ar/images/hack-blox-hunt-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_off00002ee5.bin
6099e6500be6a42598e6d8aa612fe54c68f3113c8a54fe09c2758e1bc34198ad		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2EE5 22240 bytes
font_01_sfnt_off00006026.bin
b0096c3c5e481a4f2c1c49fcffa9b92b3b8114a7f846d47264883f0ea9db8c51		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6026 18856 bytes

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