Malicious PDF — malware analysis report

Static analysis result for SHA-256 f15f5ba8d30e2957…

MALICIOUS

PDF

44.4 KB Created: 2021-05-11 06:03:45 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 9d1850e2d7e517389d537f45ef79a731 SHA-1: 341d468427e033c2e0c060cf2a6a81fafed0f79a SHA-256: f15f5ba8d30e29573d66c3cca2d2d4b3e08c41a9efcf6e7af22ae35eac8b6abc
82 Risk Score

Malware Insights

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

The PDF document contains a fake CAPTCHA lure designed to trick users into interacting with malicious content. It embeds external URLs, including one pointing to 'netcdn.xyz', which likely serves as a landing page for malware or further phishing attempts. The presence of these elements strongly suggests a phishing or malware distribution campaign.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • 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.xyz/app/431946152/roblox-games-that-give-you-free-robux-game-hack
    • http://stikespantirapih.ac.id/home/repository/what-is-a-robux_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/bux-free-robux_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/haktuts-coin-master-free-daily-spins_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/roblox-hackers-list_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/how-to-get-minecraft-for-free-on-ps4-2021_GM479516143.pdf
    • http://stikespantirapih.ac.id/home/repository/free-coins-coin-master_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/roblox-free-robux-com_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/free-spins-for-coin-master-that-work_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/free-robux-no-download_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-and-coins-daily-links_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-app-for-iphone_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/wurst-115_GM479516143.pdf
    • http://stikespantirapih.ac.id/home/repository/free-coin-and-spin-for-coin-master_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spin-ml_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/coin-master-hack-spins-and-coins-unlimited-free_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/free-robux-without-offers_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-cards-2021_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/roblox-adopt-me-hacks-2021_GM431946152.pdf
    • http://stikespantirapih.ac.id/home/repository/coin-master-free-spins-hack-iphone_GM406889139.pdf
    • http://stikespantirapih.ac.id/home/repository/free-robux-com-roblox_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004a0c.bin
90de7aa3bef3db1b2d6547315375f32b4878c46d0c89db91b28552aac47795ca		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4A0C 27052 bytes
font_01_sfnt_off000088d0.bin
af18d9cb6acc741702b59c78a5d378fdddaa2c6ad6fac2421576a1d1ac5dc213		 pdf-font-stream PDF embedded font (sfnt) at offset 0x88D0 19240 bytes

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