Malicious PDF — malware analysis report

Static analysis result for SHA-256 f2465c1477a5b0d4…

MALICIOUS

PDF

41.5 KB Created: 2020-03-24 14:12:20 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8794f6464dfd7584c9294f70364c74c8 SHA-1: aab741cebc8bac15e26c30a987476a38040c2759 SHA-256: f2465c1477a5b0d42e2778de21033c70fd8f712c2fcc74e709d203337435d8ea
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF documents hosted on different domains, suggesting a link farm or SEO spam campaign. The document body itself is largely unreadable, but the presence of the URL http://michaudwellness.com/uploads/1/3/0/5/130590464/130590464.html#la+educacion+antigua confirms the malicious intent of directing users to external content.

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://michaudwellness.com/uploads/1/3/0/5/130590464/130590464.html#la+educacion+antigua
    • http://umstud.com/uploads/1/3/0/7/130776295/ragotu-dakarilefira.pdf
    • http://mail.thecoolingrackcustomcakes.com/uploads/1/3/0/6/130622013/372735763.pdf
    • http://ronniemccray.com/uploads/1/3/0/2/130287930/xirapo-rofobamitejaxu-rapesetubuzajog.pdf
    • http://edclarkesound.com/uploads/1/3/0/6/130639914/rufuwabu-kumabunojog-bezikesafoxex.pdf
    • http://www.theeisenberggroupcpas.com/uploads/1/3/0/7/130738988/8769288.pdf
    • http://luckydogpropertyinspections.net/uploads/1/3/0/3/130313671/6720371.pdf
    • http://rohrsenfitness.com/uploads/1/3/0/7/130739006/675d1d41853e.pdf
    • http://alarstrategy.com/uploads/1/3/0/2/130274146/nogiroretotiv.pdf
    • http://iamthemuseum.com/uploads/1/3/0/7/130775558/bininowozudosow-kigifubida-relufibusukuzoz.pdf
    • http://tracymarcuzzi.com/uploads/1/3/0/4/130478819/7fb35e1beb54.pdf
    • http://hostmaster.missabrasileira.de/uploads/1/3/0/4/130483741/zikib-biwij-mezulo-fogid.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_off0000771b.bin
63606dddbd065401735553dd7e87a32b490873922cbe317634b276f504ae4aa3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x771B 9260 bytes

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