Malicious PDF — malware analysis report

Static analysis result for SHA-256 7bbdcfc6ed6d9abd…

MALICIOUS

PDF

33.9 KB Created: 2021-06-19 06:20:19 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 4bdae2a9cbf1e5383e5e27d0688fd6b8 SHA-1: 13c7d727e047d22bf5c4af840f75338d1c4e7cfd SHA-256: 7bbdcfc6ed6d9abd300e651eb2300b1a7885a2cdf12dd4776142844257ab3478
102 Risk Score

Malware Insights

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

This PDF document contains numerous links to external websites, many of which are related to game cheats and hacks for popular titles like Roblox and Coin Master. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of such links, suggesting a tactic to attract users searching for these topics. The presence of a 'SE_DOWNLOAD_BUTTON' heuristic further supports the idea that the document is designed to trick users into clicking malicious links to download files.

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-female-outfits-roblox-game-hack
    • http://aleshashop.net/uploaded_files/userfiles/files/free-roblox-birthday-party_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-anti-gravity-cheat-engine-hack_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/how-to-hack-someones-account-on-roblox_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-daily-free-spins-and-coins_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/how-can-u-get-free-robux_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/toolbox-for-minecraft_GM479516143.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/free-robux-generator-without-human-verification_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/escape-mario-area-51-roblox-game-download-free_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-free-builders-club-generator_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-gun-hack_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-promo-codes-for-free-robux_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coins-master_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/wurst-hacked-client-112-2_GM479516143.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/today-coin-master-spin-free_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master-link-daily-get-free-spins-and-coins_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/free-spins-for-coin-masters_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/tiktok-free-textbooks_GM835599320.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/roblox-promo-codes-free-robux_GM431946152.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/coin-master_GM406889139.pdf
    • http://aleshashop.net/uploaded_files/userfiles/files/haktuts-coin-master-free-spins-2021_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002f93.bin
058377ea033143e918d57ce62db64319dfa4bc614fc8a96d4784881668b9fcdd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x2F93 21536 bytes
font_01_sfnt_off00005ee0.bin
e84ee8767f7370e297e61d703cfe179dfe728b49cd328275a9b5cadca0a633f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5EE0 19276 bytes

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