Malicious PDF — malware analysis report

Static analysis result for SHA-256 dae82a3da32b0fb0…

MALICIOUS

PDF

28.0 KB Created: 2020-06-08 23:15:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 810ae92553512cc2b1f2b47afc084375 SHA-1: 921c6ff15f721c22747bab136dfc22ab9a10e26a SHA-256: dae82a3da32b0fb0faa94b60257d8e36db32644c7219503030ca86104b30007b
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 domains associated with SEO spam or link farms. The document body, though heavily obfuscated, contains text related to 'New holland 185 manure spreader specifications' and references wkhtmltopdf, suggesting a lure to disguise the malicious nature of the links. The primary attack pattern involves directing users to a network of potentially malicious or spam-related 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://slfexhibition.com/uploads/1/3/0/4/130477039/130477039.html#new+holland+185+manure+spreader+specifications
    • http://lorikeltnerdesigns.com/uploads/1/3/1/0/131070357/gakelu.pdf
    • http://cotic.com.hr/uploads/1/3/1/4/131483036/abf62d012d.pdf
    • http://pazzoinviaggio.com/uploads/1/3/0/6/130621547/5650148.pdf
    • http://74-123-75-245.mgwnet.com/uploads/1/3/1/6/131606331/wofenarurulu.pdf
    • http://liveattheseminole.com/uploads/1/3/0/5/130546415/6309911.pdf
    • http://webmail.grsymphonicband.org/uploads/1/3/1/6/131606345/f71f2c53.pdf
    • https://motajixug.files.wordpress.com/2020/06/30603747623.pdf
    • https://pitilipoze.files.wordpress.com/2020/06/34335616643.pdf
    • https://xudoraseme.files.wordpress.com/2020/06/68384321610.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_off0000443c.bin
6f01e19e59f8316c9150a1d9dd78b9e7e517f96480ceb8b5be9272135717f27d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x443C 9492 bytes

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