Malicious PDF — malware analysis report

Static analysis result for SHA-256 4e6bcbbea2a2b68c…

MALICIOUS

PDF

32.5 KB Created: 2020-05-31 21:24:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 50d538920e94ac1efa31a99e881decdc SHA-1: bcaaa59be46588c8d228f2af8232fb6bbe30130e SHA-256: 4e6bcbbea2a2b68cc420a61559de0daf3e94b85209a584957627209905d96131
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, many of which point to WordPress hosted PDFs. This behavior is indicative of a link farm or SEO manipulation tactic, likely intended to redirect users to malicious sites or generate ad revenue. The primary external URI points to 'effiesgaming.com', which may be part of the malicious redirection chain.

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://effiesgaming.com/uploads/1/3/0/5/130551182/130551182.html#motores+de+fase+partida
    • https://kipevofi.files.wordpress.com/2020/05/tobafukonitefixasavope.pdf
    • https://xoxutotexoj.files.wordpress.com/2020/05/zutunisurafalulebibo.pdf
    • https://likulorasix.files.wordpress.com/2020/05/65484811591.pdf
    • https://lorimanugolu303520256.files.wordpress.com/2020/05/vilasudurux.pdf
    • https://dasawiduved.files.wordpress.com/2020/05/kixenuxajozekuxuvifoxoj.pdf
    • https://lezidonopo.files.wordpress.com/2020/05/tilarokedajexuwefeda.pdf
    • https://babesakaj.files.wordpress.com/2020/05/rudofutusije.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_off000054c3.bin
fc7a988dcc2bb3141924bf074a0e229007cc431db321849d61c3ca19fedd320d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x54C3 10204 bytes

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