Malicious PDF — malware analysis report

Static analysis result for SHA-256 b80219db0854b73a…

MALICIOUS

PDF

33.8 KB Created: 2020-06-25 00:23:20 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 4a39dcfe97784c6dd684dba6195e6387 SHA-1: c6b199e1aeea40c48ce90c6a33ec80b20fbb6dc2 SHA-256: b80219db0854b73a15c9d66da694b112a7bcb00a2b3eef888cbe6f55901eeb72
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, suggesting a link farm or SEO spamming operation. The document body, though partially corrupted, contains text related to 'Treadmill exercise during pregnancy' and includes several of the extracted URLs. The primary intent appears to be directing users to these external sites, which are likely used to host further malicious content or phishing pages.

Heuristics 3

  • 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.
  • 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://emodestov.com/uploads/1/3/1/0/131071262/131071262.html#treadmill+exercise+during+pregnancy
    • http://climatcool.org/uploads/1/3/0/5/130590123/2b83cb0.pdf
    • http://autodiscover.buildingblocksplaycenter.com/uploads/1/3/0/5/130551927/dodizerimaroluxuzix.pdf
    • http://lacquernaildesign.com/uploads/1/3/0/5/130590371/regakuz.pdf
    • http://brainbrandllc.com/uploads/1/3/0/7/130739817/4557845.pdf
    • http://aoboise.org/uploads/1/3/0/4/130488780/099859bd82f09.pdf
    • http://webmail.vegrevillealliance.org/uploads/1/3/0/3/130313140/06d28577286f.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000049de.bin
b5010e1d20fa571ab76134dd754db1b1cebc0a97dd84b426f26dae964960c897		 pdf-font-stream PDF embedded font (sfnt) at offset 0x49DE 5204 bytes
font_01_sfnt_off00005b6e.bin
643bca6780d4bb6c6ae3835c5ba9d50b95c09c1a0472d31d58dca791d07af6c1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B6E 9432 bytes

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