Malicious PDF — malware analysis report

Static analysis result for SHA-256 2d201e9e458337df…

MALICIOUS

PDF

37.2 KB Created: 2020-04-07 19:08:27 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9de85cc54b5aaf2516cd843731edaaaa SHA-1: f2675341d357b3e8f54e5610d0e7f63572c5096b SHA-256: 2d201e9e458337df821d9169c14ba0099a3ea5fc5ecd078d6d06c684b35289ae
92 Risk Score

Malware Insights

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

The PDF contains a large number of external links to other PDF files hosted on various domains, indicative of a link farm or SEO poisoning attack. The ML classifier strongly flagged this PDF as malicious. The embedded URLs suggest a tactic to drive traffic to these external resources, potentially for distributing malware or phishing content.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://wesnicholson.com/uploads/1/3/0/2/130273982/130273982.html#foam+rc+plane+plans+pdf
    • http://kingkastle.net/uploads/1/3/0/6/130604382/41489.pdf
    • http://applepickndays.com/uploads/1/3/0/7/130774990/malow.pdf
    • http://atefofficial.com/uploads/1/3/0/4/130483924/a94ce99e8c.pdf
    • http://jayelando.com/uploads/1/3/1/3/131383766/zogosuxeke.pdf
    • http://precisedeliveryservice.net/uploads/1/3/0/3/130379104/kukoxi_velivomamoxi_xopijemopub_sugebabi.pdf
    • http://sacredhearts.ca/uploads/1/3/0/7/130739624/7450142.pdf
    • http://martialartskirkland.com/uploads/1/3/0/6/130639365/ff599c.pdf
    • http://tempohealthgroup.com/uploads/1/3/1/3/131380297/04d36b1.pdf
    • http://aceafterschoolcare.com/uploads/1/3/0/7/130775701/7875538.pdf
    • http://karraschconsulting.com/uploads/1/3/0/7/130739479/6810760.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_off00006791.bin
ca02d403e95dcf24ffa14a7d3a9e3c56c1b3f06c7a724d6630d2f17033d5deb7		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6791 8424 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.