Malicious PDF — malware analysis report

Static analysis result for SHA-256 ac6af0436bcc8467…

MALICIOUS

PDF

45.2 KB Created: 2020-04-21 07:21:57 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: a901a645108e052a92c934d108a6fd70 SHA-1: f630e26011adfbee2f2f1a369e76ca7f888ab866 SHA-256: ac6af0436bcc846718d67ee3e1aaf7f744a67d84853dd822c9916f8e4a169713
102 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which are structured as a link farm. One heuristic specifically identifies a 'Browser extension / update installation lure,' indicating the document's content is designed to trick the user into installing malicious software or plugins. The embedded URLs likely lead to further malicious content or exploit delivery.

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.
  • Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
    Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
  • 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://mipymefinanciamostucrecimiento.com/uploads/1/3/0/3/130323161/130323161.html#cucumber+java+interview+questions+and+answers
    • http://taptep.com/uploads/1/3/1/3/131378932/c88eb11f.pdf
    • http://alrcc.net/uploads/1/3/0/7/130776737/491883.pdf
    • http://beckmanagement.online/uploads/1/3/0/3/130380037/fexirizoraviv.pdf
    • http://snowbirdpicturesinc.com/uploads/1/3/0/5/130589035/gasal_jeweposi.pdf
    • http://zohrabeauty.com/uploads/1/3/0/6/130604363/kusur.pdf
    • http://campoelite.com/uploads/1/3/0/5/130588811/ruxosiderexoter.pdf
    • http://jlhalerbooks.com/uploads/1/3/0/2/130287932/2801244.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://ns.adobe.com/xap/1.0/rights/

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000086f2.bin
3f46c25b0e05e219b1b8af1ebae1c9111aa231fed68a99cc12637744470fef2b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x86F2 8836 bytes

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