Malicious PDF — malware analysis report

Static analysis result for SHA-256 466b0d35fef837ff…

MALICIOUS

PDF

35.3 KB Created: 2020-05-24 01:33:50 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7cb887ccaf723856fd014d09c546d84f SHA-1: 2266f18cacb32bdbcab5e0172240a9e4ff22f507 SHA-256: 466b0d35fef837ffa69918d27877f4d022f69aa160c8873b280ecf87247997ce
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to unrelated domains and appear to be part of a link farm or SEO spam campaign. The document body, though heavily obfuscated, contains references to a 'Canon af35m manual' and the authoring application 'wkhtmltopdf', suggesting a lure to disguise the malicious intent. The primary goal appears to be directing users to potentially malicious or spam-filled websites.

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://ipmofwa.com/uploads/1/3/0/6/130620796/130620796.html#canon+af35m+manual
    • http://angelasacademicblog.com/uploads/1/3/0/7/130775951/tixafebemokef_xevavewes_vawagowuji_mififozu.pdf
    • http://nailspirit.com/uploads/1/3/0/4/130483125/debacb.pdf
    • http://lukeforwoodson.com/uploads/1/3/0/6/130621524/7039589.pdf
    • http://hismaidservant.com/uploads/1/3/0/6/130621505/c82b84.pdf
    • http://anti-rodentmasterbatch.com/uploads/1/3/0/7/130740087/2848365eef43c.pdf
    • http://finaleagency.com/uploads/1/3/0/6/130620853/tufexejulon_jusalinujifuw_kaboxawubuduxe.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_off00005b93.bin
a350a0e50c7e4f05f611e7b1cb3751dff84001e58b603d47c6fc0ecf282f066d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5B93 11528 bytes

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