Malicious PDF — malware analysis report

Static analysis result for SHA-256 9bdfb9137811c72a…

MALICIOUS

PDF

30.2 KB Created: 2020-04-08 05:55:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 56148852457bbc7ecf68ee8c1f552829 SHA-1: 1072e3c6e4c895622113e9692ea373bf4b3c297c SHA-256: 9bdfb9137811c72a701540939dd542efe5b234fbdfdcb2eb9eeaa2c8687aa663
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, a technique often used for SEO poisoning or to redirect users to malicious sites. The document body, though heavily obfuscated, contains text related to a hospital location, likely intended as a lure. The primary heuristic identified a link farm, suggesting the document's purpose is to drive traffic to a network of potentially malicious or deceptive 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://shopbroadwayskincare.com/uploads/1/3/0/6/130639781/130639781.html#major+hospital+shelbyville+indiana
    • http://gentlespiritsproject.com/uploads/1/3/1/3/131380916/dutikaza_fitojibodagi_zofosedujiruji.pdf
    • http://diagnosissupport.com/uploads/1/3/0/6/130604884/1f5cc1534bc.pdf
    • http://shuttornillodown.com/uploads/1/3/0/6/130603918/9597413.pdf
    • http://cbputzulu.com/uploads/1/3/0/5/130551935/tazozomo-kobazelose-latubikupibivus-bazuwa.pdf
    • http://bee-friendly.info/uploads/1/3/0/5/130588150/4b2cca.pdf
    • http://bethanyclare.com/uploads/1/3/0/6/130621682/zixemivedizidufe.pdf
    • http://sc.advantex.uk.com/uploads/1/3/0/5/130542907/b28c5.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_off00004e5d.bin
a1888cb23ba4306a4cc79bef937b2d1220f1a5ba0aeb442999b4e08babb745ed		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4E5D 7276 bytes

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