Malicious PDF — malware analysis report

Static analysis result for SHA-256 ea72b5863df634c5…

MALICIOUS

PDF

38.7 KB Created: 2020-04-28 23:52:33 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 82b75adaa2ef954ac5860c40dd7b1d02 SHA-1: 651455ca77c080d668c414c02b370ae18fd8fd1a SHA-256: ea72b5863df634c56334fed780ea76162dc5fc8dba252fbf145625a93d610dbc
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF file contains a significant number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The document body, though heavily obfuscated, contains text related to 'Series girlfriends guide to divorce' and references to wkhtmltopdf, suggesting a lure. The primary intent appears to be directing users to a network of related domains, likely for SEO manipulation or to host further malicious 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://iavnt.net/uploads/1/3/0/5/130543156/130543156.html#series+girlfriends+guide+to+divorce
    • http://androsltd.com/uploads/1/3/0/4/130483581/49451cd.pdf
    • http://ulrich-sommer.com/uploads/1/3/0/8/130814360/1191701.pdf
    • http://bradshawscience.com/uploads/1/3/0/8/130814176/koxuwofigevexesa.pdf
    • http://eighty4clothing.com/uploads/1/3/0/4/130483479/barixojos.pdf
    • http://smashingas.com/uploads/1/3/0/5/130589122/18753f2a76.pdf
    • http://onaxservicesllc.com/uploads/1/3/0/6/130605263/5725dae.pdf
    • http://pope3rdgrade.com/uploads/1/3/1/3/131378820/84fee0b.pdf
    • http://122corson.net/uploads/1/3/1/6/131636855/6157627.pdf
    • http://thaiairwayssupport.com/uploads/1/3/1/3/131378991/5114758.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_off00006fd9.bin
e3f28fb6d962bd83524c4bc21b7df155f9156fbb28c4e36295dc8d705e61735b		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6FD9 8380 bytes

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