Malicious PDF — malware analysis report

Static analysis result for SHA-256 c24d892165a9f355…

MALICIOUS

PDF

34.3 KB Created: 2021-07-01 20:36:17 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9ea35028544af64aee62487d020d8587 SHA-1: a652f4a289067f9c505009cba00ce38f21f07e06 SHA-256: c24d892165a9f35554b64cadfc0a49bf2bebaeedbf85d2e1c14d819b50440f4f
102 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which are SEO-farmed to appear as legitimate resources for game cheats and hacks. The primary lure is 'Free Robux', a common tactic to entice users into clicking malicious links. The presence of a link farm and the ML classifier's high confidence score indicate a malicious intent to redirect users to potentially harmful content or downloads.

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-hack-no-human-verification-real-game-hack
    • http://digilib.stie-yppi.ac.id/repository/roblox-free-suit-not-deflaut_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/coin-master-game-hacking_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/mcpe-master-hack-unlimited-coins-download_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-generator-2021-no-human-verification_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-free-robux-by-inspecting-2021_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/get-free-robux-no-download-no-waiting_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-generator-no-human-verification-or-surveys_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-robux-no-hacking-account_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/roblox-hacked-bloxy_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/www-free-robux-come_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-roblox-cards-pin-number-2021_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/coin-master-games-hack_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/roblox-hack-unlimited-robux_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/free-bux-hack-roblox_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/prison-life-speed-hack-roblox_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/coin-master-cheats-without-verification_GM406889139.pdf
    • http://digilib.stie-yppi.ac.id/repository/robux-adder_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/how-to-get-java-minecraft-for-free_GM479516143.pdf
    • http://digilib.stie-yppi.ac.id/repository/roblox-pokemon-brick-bronze-hack_GM431946152.pdf
    • http://digilib.stie-yppi.ac.id/repository/mobihack-roblox-hack_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f02.bin
657b5ab4e5cc9cb4a872720f04add895ecc1a9361fd8f147e485a00bd6e041e8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F02 21992 bytes
font_01_sfnt_off00005faf.bin
ca452480f84e1fcd57db845b5dcfa276baf8caf0d2aa72372a1a93e4bcf465d6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5FAF 19580 bytes

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