Malicious PDF — malware analysis report

Static analysis result for SHA-256 b0e61e970f590500…

MALICIOUS

PDF

43.6 KB Created: 2021-06-04 00:47:11 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 5fb5729284a4571db42d1033d51ff29e SHA-1: 8c568e2634874bba2c7b1364c7c8bc457e901ead SHA-256: b0e61e970f5905009c3ba8f034648a4e0a02f744ba6ffe5a0768962da7f7dc6e
142 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document contains numerous links to external websites, many of which appear to be part of a link farm designed to host SEO-optimized content related to game hacks and free items. The document also displays a fake CAPTCHA or human verification prompt, a common social engineering tactic to trick users into interacting with malicious content. The presence of these elements strongly suggests a phishing or malware distribution attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

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 https://netcdn.online/app/406889139/free-spins-from-coin-master-game-hack
    • http://perpus.poltekeskupang.ac.id//repository/how-to-play-minecraft-for-free-on-computer_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/roblox-play-as-guest-free_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/minecraft-free-download-mobile_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-coins-and-spins-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/minecraft-coins-free_GM479516143.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-wheel_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-fan-page-giveaway_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-hack-apk-2021-ios_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-to-gift-robux-on-mobile_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/get-gold-coin-master-village-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/free-spins-from-coin-master_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/how-do-you-get-free-robux_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/how-to-get-free-spins-on-coin-master-hack_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/google-how-do-you-get-free-robux_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-robux-website_GM431946152.pdf
    • http://perpus.poltekeskupang.ac.id//repository/coin-master-hack-apk-facebook-login_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-free-spins-generator-no-human-verification_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/free-coins-coin-master-2021_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id/repository/coin-master-game-hunters-club_GM406889139.pdf
    • http://perpus.poltekeskupang.ac.id//repository/feb-23-2021-free-coin-master-spins_GM406889139.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00004d0f.bin
999bf76f1c2f0067ebe23f163afa4925e3e65788779a1b5c20d8651c861cd7d9		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4D0F 25836 bytes
font_01_sfnt_off0000884a.bin
a8179ab01d9f651dd6fb5ce3364ead5561884d8b40fe8a62eaf26fde05d0c646		 pdf-font-stream PDF embedded font (sfnt) at offset 0x884A 18148 bytes

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