Malicious PDF — malware analysis report

Static analysis result for SHA-256 2275146e91d5a202…

MALICIOUS

PDF

35.3 KB Created: 2021-06-25 19:04:50 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 0248d071552118f75d1c6de4673e80c6 SHA-1: 0948c7fb5211f5e6868f9b2846f35c7c91b09d4c SHA-256: 2275146e91d5a2027786e3b94d3480e30ab11144d476de31cab9738d20bf2f4c
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 point to resources related to game hacks and cheats, such as 'roblox-yammy-xox-hacking-game-hack'. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a tactic to distribute malicious content or drive traffic to potentially harmful sites. The ML classifier also strongly flagged this PDF as malicious.

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/roblox-yammy-xox-hacking-game-hack
    • https://pustaka.widyakartika.ac.id/repository/coin-master-hack-download-android_GM406889139.pdf
    • https://pustaka.widyakartika.ac.id/repository/roblox-microsoft-rewards_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/roblox-army-free-robux_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/roblox-free-robux-proflie_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/how-to-make-roblox-clothes-for-free_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/girl-roblox-avatar_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/games-that-really-give-you-free-robux_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/hacks-for-case-clicker-roblox_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/download-hack-roblox-2021-fr-bee-swarm-simulator_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/cheat-engine-scripts-for-roblox_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/how-to-get-free-robux-com_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/all-coin-master-spin-link-and-free-download_GM406889139.pdf
    • https://pustaka.widyakartika.ac.id/repository/wurst-112-2_GM479516143.pdf
    • https://pustaka.widyakartika.ac.id/repository/roblox-robux-generator-no-hack_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/apoculopse-rising-roblox-hack-script-spawning_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/roblox-lua-hack-scripts_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/roblox-hack-no-hassle-free_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/how-to-not-get-kicked-for-hacking-in-roblox_GM431946152.pdf
    • https://pustaka.widyakartika.ac.id/repository/no-human-verification-hack-for-coin-master_GM406889139.pdf
    • https://pustaka.widyakartika.ac.id/repository/coin-master-email-rewards-link_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000031dc.bin
1bdbebd88b6515c73dea4a89debed8cf4bf717a623ee209618b4ef9aaee060bb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x31DC 22612 bytes
font_01_sfnt_off00006423.bin
a862a615c35b28e3f672db2feb6777bca5a22ee03af5f9dcace038562a9a3268		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6423 19380 bytes

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