Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ca44874c98a22b6…

MALICIOUS

PDF

35.7 KB Created: 2021-06-18 09:36:48 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 8ee5825f6ea8037711635e3d33dc9140 SHA-1: 370a2e0f31dac24046c7d8c8ae5ea7d66a125564 SHA-256: 3ca44874c98a22b6e899b039939244ca9ab8673542adfdc7f14bb489485476d5
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous embedded URLs, many of which point to resources related to game hacks and cheats. The presence of a fake CAPTCHA heuristic indicates a social engineering tactic to trick the user into clicking these links. The document's content and structure suggest it is part of a phishing or scam campaign designed to redirect users to potentially malicious websites or downloads.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 5

  • 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.
  • Fake CAPTCHA / human verification prompt high SE_FAKE_CAPTCHA
    Document displays a fake CAPTCHA or human-verification prompt — used to trick users into running commands or pressing keyboard shortcuts
  • 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/fahrzeug-simulator-roblox-hacks-game-hack
    • http://library.atim.ac.id/repository/free-robux-promo-codes-2021_GM431946152.pdf
    • http://library.atim.ac.id/repository/how-to-coin-master-hack_GM406889139.pdf
    • http://library.atim.ac.id/repository/free-robux-that-actually-works_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-stuff-in-roblox-catalog-2021_GM431946152.pdf
    • http://library.atim.ac.id/repository/how-to-get-robux-from-3-invites-free-nitro_GM431946152.pdf
    • http://library.atim.ac.id/repository/island-life-paradise-hack-script-roblox_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-robux-hack-no-robot-verification_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-spin-link-for-coin-master_GM406889139.pdf
    • http://library.atim.ac.id/repository/roblox-magic-training-wand-free_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-minecraft-com_GM479516143.pdf
    • http://library.atim.ac.id/repository/coin-master-hack-version-download-ios_GM406889139.pdf
    • http://library.atim.ac.id/repository/speed-hack-script-roblox_GM431946152.pdf
    • http://library.atim.ac.id/repository/toolbox-premium-apk_GM479516143.pdf
    • http://library.atim.ac.id/repository/coin-master-33-hack-version-download_GM406889139.pdf
    • http://library.atim.ac.id/repository/app-for-free-spins-on-coin-master_GM406889139.pdf
    • http://library.atim.ac.id/repository/hacking-brotherss-roblox-account_GM431946152.pdf
    • http://library.atim.ac.id/repository/how-to-hack-robux-with-cheat-engine-64-2021_GM431946152.pdf
    • http://library.atim.ac.id/repository/pubg-uc-bc-com_GM1330123889.pdf
    • http://library.atim.ac.id/repository/how-you-get-free-robux_GM431946152.pdf
    • http://library.atim.ac.id/repository/free-roblox-headphone_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000332c.bin
68b4fde955662b849cec9254565e2a80a70aee7e1765cc5e8f8e5274b3eb0eea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x332C 22368 bytes
font_01_sfnt_off000064c5.bin
6063ac2cb805b2cb10049539aaf15b004fbc791197a385cfd5e2cb354912e167		 pdf-font-stream PDF embedded font (sfnt) at offset 0x64C5 19692 bytes

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