Malicious PDF — malware analysis report

Static analysis result for SHA-256 06ea1849f18b30c4…

MALICIOUS

PDF

33.9 KB Created: 2021-06-30 01:52:10 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-15
MD5: d9e897f19e1531cf7b5d3fe9f1168ad4 SHA-1: 9e3b6a9010f5efb71beb48089fc3b711bf553bb8 SHA-256: 06ea1849f18b30c4c21c774f87b6f0e94d47bd6b3774689c8d840e480873d8da
102 Risk Score

Malware Insights

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

The PDF document contains numerous embedded URLs that lead to pages offering hacks or generators for popular games 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 cheats. The ML classifier also strongly flagged this PDF as malicious, supporting the conclusion that it is designed to lure users to potentially harmful content.

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/kuso-ico-roblox-free-game-hack PDF link annotation
    • http://www.shivintech.com/uploaded_files/userfiles/files/hack-crack-for-coin-master-currency_GM406889139.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/robux-in-roblox-free_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/robux-no-human-verification_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-get-halo-for-free-roblox_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-hack-roblox-in-poison_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-get-real-robux_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-robux-does-not-work_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-robux-gift-card-generator_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/roblox-free-redeem_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-roblox-card-codes_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/robux-free-gift-card-org-hack_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/what-are-points-for-in-roblox_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/coin-master-gold-cards-hack-2021_GM406889139.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/coin-master-hack-ios-2021_GM406889139.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/roblox-free-robux-hack-no-password_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/apps-to-get-free-robux_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/how-to-get-free-tiktok-likes_GM835599320.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/coin-master-free-attack-hack_GM406889139.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/free-gift-codes-for-roblox_GM431946152.pdfIn PDF document text
    • http://www.shivintech.com/uploaded_files/userfiles/files/coin-master-cheat-engine-hack_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_off00002e81.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x2E81 22324 bytes
SHA-256: bcbb590bc9503c54d68a45973a045266a675fd5b162d589a0865caad73ff7bed
font_01_sfnt_off00006029.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6029 18788 bytes
SHA-256: 18c0cdc51239827676a10d91e723308b609fe68700a423f069f23462a4e3a288

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