Malicious PDF — malware analysis report

Static analysis result for SHA-256 542db2d73e5a97f3…

MALICIOUS

PDF

70.6 KB Created: 2020-04-05 03:57:36 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 79132d3ea54f9936b8a915842a7e0e38 SHA-1: 1ea95ee85ab03abbc11bb9abe853d56be8be37d4 SHA-256: 542db2d73e5a97f3a4f3e81472fc9747780428f9c8d42a61ad1d0f8b791dcd35
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, a technique often used for SEO spam or to redirect users to malicious sites. The document body, though heavily obfuscated, contains a reference to the Spanish Constitution of 1812, likely as a lure. The primary IOCs are the numerous URLs pointing to various domains, suggesting a link farm or redirection infrastructure.

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://instpastoralsocialwagha.org/uploads/1/3/0/8/130815437/130815437.html#numero+de+articulos+de+la+constitucion+de+1812
    • http://sandyhillaquaponics.com/uploads/1/3/0/4/130476205/9708144.pdf
    • http://lightoftorahpilgrimage.com/uploads/1/3/1/3/131381804/9090052.pdf
    • http://poetryradio.com/uploads/1/3/0/6/130603979/kufiwosisi.pdf
    • http://mecanbike.com/uploads/1/3/1/3/131383665/644800.pdf
    • http://nlspartners.com/uploads/1/3/0/5/130590521/sizagereruvitodopi.pdf
    • http://digijonessolutions.com/uploads/1/3/1/3/131380609/8895225.pdf
    • http://clearchoicesales.com/uploads/1/3/0/6/130639739/rejufutudojelakiv.pdf
    • http://mail.madgreekcafe.com/uploads/1/3/0/5/130551115/e08a8cd255f82.pdf
    • http://swainsborojaycees.org/uploads/1/3/0/4/130483603/8341752.pdf
    • http://rats-love.com/uploads/1/3/1/3/131383548/4216134.pdf
    • http://beacondermatology.com/uploads/1/3/0/2/130272070/mabodidef.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_off0000eca1.bin
7e0bdfdbc48fd4847f63e36302a209b613821296b0084e0a7f0733d6013e850e		 pdf-font-stream PDF embedded font (sfnt) at offset 0xECA1 8304 bytes

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