Malicious PDF — malware analysis report

Static analysis result for SHA-256 547dcdc12240ce0e…

MALICIOUS

PDF

28.8 KB Created: 2020-06-03 20:45:09 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 42607b817c54562c7e7095cef176555b SHA-1: 79d6aace0c759b94f565340fbad69de756326c6f SHA-256: 547dcdc12240ce0e01d0d53424911ffc084c37779823af248fd9582958fb0266
62 Risk Score

Malware Insights

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

The PDF file contains a significant number of embedded external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains. The document body, though heavily obfuscated, contains references to these URLs. The primary attack pattern appears to be a link farm or SEO manipulation, potentially leading users to malicious content or phishing sites.

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://joyofphysics.com/uploads/1/3/0/7/130739389/130739389.html#ben+10+battle+ready+game
    • http://kajiansalafi.com/uploads/1/3/0/6/130605118/1475614.pdf
    • http://swimwithpres.com/uploads/1/3/0/5/130544635/fapagisesinabib.pdf
    • http://bellafaccia.org/uploads/1/3/1/4/131437472/a81ec00005.pdf
    • http://northernriverspoolsolutions.com/uploads/1/3/1/8/131856177/dd076d.pdf
    • http://tulsaheli.com/uploads/1/3/0/2/130287991/9f47b22ce.pdf
    • http://joyofphysics.com/uploads/1/3/0/7/130739389/terms.html
    • http://joyofphysics.com/uploads/1/3/0/7/130739389/dmca.html
    • http://joyofphysics.com/uploads/1/3/0/7/130739389/policy.html
    • https://gepuwovu.files.wordpress.com/2020/05/kuzuxipuwadopewonav.pdf
    • https://duzawexosusa.files.wordpress.com/2020/05/dexepipixata.pdf
    • https://zosikex.files.wordpress.com/2020/05/pekafedowupozis.pdf
    • https://buxanoxunos.files.wordpress.com/2020/06/58980101449.pdf
    • https://jebemoma.files.wordpress.com/2020/06/3717956200.pdf
    • https://vubagojexub.files.wordpress.com/2020/06/milotoxafegaxafof.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_off000047df.bin
282246c82172a61a7552dd2425c0cac58d970b6247fbeebadd9bf6fdc174df32		 pdf-font-stream PDF embedded font (sfnt) at offset 0x47DF 9692 bytes

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