Malicious PDF — malware analysis report

Static analysis result for SHA-256 0db0e7e4c6a246f8…

MALICIOUS

PDF

45.9 KB Created: 2021-05-13 17:33:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: eff4121799086cf4553e01d720151730 SHA-1: dd494eb1979e5d6a4916e1b26da196ec28b597c6 SHA-256: 0db0e7e4c6a246f87639ac45b68c51d30aeaa2dd8595fb6c0602c4b3ffebc95a
102 Risk Score

Malware Insights

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

The PDF document contains numerous links to external websites, many of which are SEO-optimized PDFs related to game cheats and exploits. The primary URL, https://netcdn.xyz/app/431946152/free-roblox-executor-no-key-game-hack, suggests a lure for downloading potentially unwanted or malicious software. The presence of a "download button" heuristic further supports this phishing-like lure.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9432

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 https://netcdn.xyz/app/431946152/free-roblox-executor-no-key-game-hack
    • http://christiansymbolkits.com/images/minecraft-java-edition-for-free_GM479516143.pdf
    • http://christiansymbolkits.com/images/roblox-games-that-give-you-free-robux_GM431946152.pdf
    • http://christiansymbolkits.com/images/free-robux-pastebin_GM431946152.pdf
    • http://christiansymbolkits.com/images/www-roblox-com-robux-free_GM431946152.pdf
    • http://christiansymbolkits.com/images/coin-master-cheats-2021_GM406889139.pdf
    • http://christiansymbolkits.com/images/coin-master-free-gold-cards-link-2021ee-spins_GM406889139.pdf
    • http://christiansymbolkits.com/images/how-to-get-free-robux-without-verifying_GM431946152.pdf
    • http://christiansymbolkits.com/images/how-to-get-free-robux-without-downloading-apps_GM431946152.pdf
    • http://christiansymbolkits.com/images/free-spin-codes-coin-master_GM406889139.pdf
    • http://christiansymbolkits.com/images/roblox-mobile-hack_GM431946152.pdf
    • http://christiansymbolkits.com/images/how-to-get-free-robux-2021_GM431946152.pdf
    • http://christiansymbolkits.com/images/roblox-free-robux-website_GM431946152.pdf
    • http://christiansymbolkits.com/images/haktuts-coin-master-hack_GM406889139.pdf
    • http://christiansymbolkits.com/images/coin-master-free-spins-link-blogspot-2021_GM406889139.pdf
    • http://christiansymbolkits.com/images/minecraft-xbox-360-free-download-code_GM479516143.pdf
    • http://christiansymbolkits.com/images/how-to-get-robux-for-free-2021_GM431946152.pdf
    • http://christiansymbolkits.com/images/links-to-free-spins-on-coin-master_GM406889139.pdf
    • http://christiansymbolkits.com/images/free-robux-net_GM431946152.pdf
    • http://christiansymbolkits.com/images/free-coin-master-links_GM406889139.pdf
    • http://christiansymbolkits.com/images/free-robux-hack-no-human-verification_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004c06.bin
aebfdcc9070feaf0cae7ec86124a7773808cbcb99cc7d71fb15ebd58dcca3cae		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4C06 25188 bytes
font_01_sfnt_off00008683.bin
10d025f04f706eb71cdda4f99784df1b9ccb52e48080e43095e0398eaef6f132		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8683 2880 bytes
font_02_sfnt_off0000906d.bin
dc47713ba6eb13f64d542fcf15a88c1c3b337790738a4cc5e94b1e08b5db33e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x906D 18372 bytes

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