Malicious PDF — malware analysis report

Static analysis result for SHA-256 1093aeeb91fdef51…

MALICIOUS

PDF

35.0 KB Created: 2021-05-22 17:38:05 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-09-27
MD5: 0f989b23037143de73dbf7936301764c SHA-1: 53449936f6f48592abadcaa9c21238ae4aa3f26e SHA-256: 1093aeeb91fdef5141a3e0c73a248063f1787742d5d55c7871bcbed1ebe13d36
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.001 User Execution: Malicious Link

The PDF document contains embedded links and text that impersonate the Microsoft brand, attempting to trick users into clicking a link for a 'Roblox Generator' or game hacks. The primary malicious URL, 'https://netcdn.xyz/app/431946152/give-me-free-robux-game-hack', is presented as a call-to-action. While no scripts were explicitly extracted, the presence of external URLs and brand impersonation heuristics strongly suggests a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9492

Heuristics 4

  • Brand-impersonation credential phishing lure high SE_BRAND_CREDENTIAL_PHISH
    Document impersonates a well-known consumer brand and uses account-security / verification language ('unusual activity', 'account on hold', 'verify your account') to steer the reader to a credential-harvesting link. Corroborated by: call-to-action link host does not match the impersonated brand: https://netcdn.xyz/app/431946152/give-me-free-robux-game-hack.
  • 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/give-me-free-robux-game-hack PDF link annotation
    • http://www.metinadistribuzione.com/images/coin-master-hack-online-download_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spin-today_GM406889139.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/minecraft-java-edition-free-download_GM479516143.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/download-minecraft-java-edition-free_GM479516143.pdfIn PDF document text
    • http://www.metinadistribuzione.com/images/coin-master-free-spin-and-coins-links-2021_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_off0000312f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x312F 23652 bytes
SHA-256: 185caee6f10642dc4ab0c1ebb0a914894506e4915d09d9478488acba9d9475d7
font_01_sfnt_off0000670c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x670C 18444 bytes
SHA-256: 68319dbf483afe81c5a4de3b3f5290fc223d358c0f75f000dd988daf46eb7eae