Malicious PDF — malware analysis report

Static analysis result for SHA-256 f22e9f09ece8245a…

MALICIOUS

PDF

33.9 KB Created: 2021-06-29 15:44:53 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-13
MD5: 49f3b58a8782a4f8bec715432e50c703 SHA-1: 6a90dec838b67c11213131d9fbf9aa1b5fb49436 SHA-256: f22e9f09ece8245ae51fd3dbfb50e97eb359f2662f34002a2154a8d4ddba67a2
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous links to external websites, many of which are algorithmically generated and point to game-related cheats and hacks, such as for Roblox and Minecraft. The presence of a 'download button' heuristic and the ML classifier's high confidence score indicate a malicious intent to lure users into downloading potentially harmful content. The document's content and structure strongly suggest a phishing or scam attempt disguised as a resource for game exploits.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9824

Heuristics 4

  • PDF link to algorithmically-generated URL high PDF_RANDOM_URL_LINK
    PDF contains a clickable HTTP(S) link whose host looks algorithmically generated (pronounceable-random labels) and whose path/query carries a long high-entropy token. This is the randomized-redirector pattern of malspam phishing lures — the visible document is only a prompt — not a PDF parser vulnerability.
  • 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/www-roblox-cheat.uscom-game-hack PDF link annotation
    • http://digilibfisip.uwks.ac.id/repository/how-to-hack-through-walls-on-roblox-jailbreak_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/hack-roblox-cheat-engine-64-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-become-admin-on-roblox-for-free_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-free-robux-inspect-element-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-minecraft-bedrock-server-hosting_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-robux-hack-2021-computer_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-hack-get-unlimited-free-robux-generator-no-human-verification_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/roblox-dll-cheats_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/free-roblox-gift-card-codes-2021_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/minecraft-hacked-client-download_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/extension-bigefpfhnfcobdlfbedofhhaibnlghod-mega-securehtml-roblox-hack_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-any-free-catalog-item-in-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/any-gamepass-free-roblox-script_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/why-free-robux-is-not-true_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/how-to-get-free-robux-promo-codes-2021-december_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/stop-teleport-hacking-roblox_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/blox-land-free-robux_GM431946152.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/minecraft-for-free-on-phone_GM479516143.pdfIn PDF document text
    • http://digilibfisip.uwks.ac.id/repository/coin-master-hack-without-verification_GM406889139.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00002ba8.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2BA8 22548 bytes
SHA-256: fc5cc9cd4331071824a5e1c4166d3eb3568fca998d5b3f4f7da7258a8e9a2794
font_01_sfnt_off00005dff.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x5DFF 19584 bytes
SHA-256: 4da39eeb7f4ce3b65beaf31240c61d2c604a20c00b9db3eb4dd616d8362d51d0

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