Malicious PDF — malware analysis report

Static analysis result for SHA-256 e7671ec1e2f853be…

MALICIOUS

PDF

48.4 KB Created: 2020-04-04 08:55:44 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 871e4e6c6831ac429dbaec4cbe21e1f8 SHA-1: ab990f4e5802e7da7db9b279dae1ff62a11a0558 SHA-256: e7671ec1e2f853be7c10032dc44e4e4d31dbc3f8cc5397229ec2cbe7b48fee17
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF file contains a large number of external links to other PDF documents, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains references to these URLs. This suggests a link farm or SEO poisoning attack, where the goal is to drive traffic to malicious or deceptive content hosted on numerous domains.

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://hkcfoundationforparkinsons.org/uploads/1/3/0/7/130739026/130739026.html#como+hacer+un+modelo+de+regresion+lineal+multiple
    • http://botanasbelimex.org/uploads/1/3/0/5/130588976/jomijukomowaw.pdf
    • http://theoriginalpetpacker.com/uploads/1/3/0/5/130551864/8c5952.pdf
    • http://campprepare.com/uploads/1/3/0/5/130539658/vebakus-wosetaw-tavudirab-gaburag.pdf
    • http://baygrownfarms.com/uploads/1/3/0/2/130288626/3e91cdd6e335.pdf
    • http://pointbreakpools.com/uploads/1/3/0/8/130874129/848e01e1120f9.pdf
    • http://ne4me.com/uploads/1/3/0/6/130640179/8713347.pdf
    • http://hikarimartialarts.org/uploads/1/3/0/7/130740054/59e6b91592f951.pdf
    • http://bsprs.net/uploads/1/3/0/6/130621002/68b023ee4f8.pdf
    • http://girlsgot-game.org/uploads/1/3/1/0/131070843/jezudo-newole-foriremafuko-nusefodu.pdf
    • http://sarahparis.photos/uploads/1/3/0/4/130483123/kowuzoli_jomofegejoj_roxozefabo.pdf
    • http://jonashpetty.com/uploads/1/3/0/5/130590596/gelubufowezogo.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_off00008f08.bin
34f2d1261071b6aa656f2163ebf771b4d337fa4708ca0c1542f00e486ed657f9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8F08 10704 bytes

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