Malicious PDF — malware analysis report

Static analysis result for SHA-256 b333c6d6bcfe9068…

MALICIOUS

PDF

52.8 KB Created: 2020-04-18 20:05:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 705ec03e08537059e728e1c6225f62c2 SHA-1: 029df2c7e31d3b6e5c6968660bffdf2e1f79e952 SHA-256: b333c6d6bcfe9068aaac3923071edc3483c2d5145be7cea91afa9d180744c370
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains a large number of external links, many of which point to similarly structured URLs on different domains. This pattern is indicative of a link farm or SEO scam designed to drive traffic to potentially malicious sites. The document body text, though heavily obfuscated, contains a reference to 'Bacteriological analytical manual fda' and the wkhtmltopdf generator, suggesting a lure to disguise the malicious intent. No scripts were extracted from this sample.

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://forumlogistics.eu/uploads/1/3/1/4/131407424/131407424.html#bacteriological+analytical+manual+fda
    • http://bigjuicyslices.com/uploads/1/3/0/7/130775821/daa5d6b.pdf
    • http://blueovalmovingservices.com/uploads/1/3/1/4/131437640/3c8403321.pdf
    • http://jackandjillpalmbeach.org/uploads/1/3/0/8/130814083/3203475.pdf
    • http://betterbutter510.com/uploads/1/3/0/7/130775854/naraxumozisuf.pdf
    • http://prceducation.net/uploads/1/3/0/5/130590374/tuvoman.pdf
    • http://liacare.org/uploads/1/3/0/7/130738963/fe662dae9bcf346.pdf
    • http://stepitupcourses.com/uploads/1/3/0/5/130539078/efe1bc8d.pdf
    • http://deandrawsstudio.com/uploads/1/3/0/4/130435590/3f90d7.pdf
    • http://rochestersnowremovals.com/uploads/1/3/0/8/130813852/9941af4.pdf
    • http://trinitytreats.net/uploads/1/3/0/7/130739112/fabodegujuxo-loxut-xejujeba.pdf
    • http://cppawleysisland.com/uploads/1/3/1/0/131069753/2705576.pdf
    • http://ncve-taiwan.net/uploads/1/3/0/7/130739766/7526721.pdf
    • http://jlelliottlaw.com/uploads/1/3/1/6/131606619/3921411.pdf
    • http://stepitupcourses.com/u
    • 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_off0000a398.bin
7bdd5426fad004a58a0502f136efcc897070c472a6ec17bbfbf747283ae1bb6c		 pdf-font-stream PDF embedded font (sfnt) at offset 0xA398 8804 bytes

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