Malicious PDF — malware analysis report

Static analysis result for SHA-256 8fa7a013365ad17d…

MALICIOUS

PDF

38.1 KB Created: 2020-03-08 07:40:58 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5806c0755844b44dd92729331b323fc8 SHA-1: bf1bd3989163ee9b9120d8c3f7aab8b7b6fd5f06 SHA-256: 8fa7a013365ad17df23911743509ba7e62a055f921578ee080a3e6e0086e00f1
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO scam. The document body itself is heavily obfuscated and contains a primary URL that also appears to be part of this link farm. The intent is likely to lure users to malicious or deceptive content hosted across these 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://host200.carmichaelnl.com/uploads/1/3/0/5/130551625/130551625.html#biotic+and+abiotic+factors+in+tropical+grassland
    • http://specialhairstyle.com/uploads/1/3/0/2/130272981/pidaxalitadobolu.pdf
    • http://dodjikoffi.com/uploads/1/3/0/6/130639147/2576083.pdf
    • http://seedtoatree.com/uploads/1/3/0/6/130603793/7418471.pdf
    • http://resemble.co.za/uploads/1/3/0/2/130288542/pofam_bazivuwogukeni_retedobo.pdf
    • http://bestbefrank.com/uploads/1/3/0/4/130436020/5467192.pdf
    • http://mal-test.com/uploads/1/3/0/6/130639865/8643875.pdf
    • http://mta-sts.mail.poniestheater.nl/uploads/1/3/0/3/130313148/c431796114.pdf
    • http://www.joekejohnson.com/uploads/1/3/0/9/130969818/wafarurofafepe-texupalow-vovokobisesebin.pdf
    • http://www.linklearnlive.org/uploads/1/3/0/5/130540282/netisurufadosi-bosigerabesow.pdf
    • http://riderecruiting.com/uploads/1/3/0/8/130813966/resamijerirere.pdf
    • http://www.embraceyourshadow.com/uploads/1/3/1/0/131070820/fosutakib_zagoxilorina_puzererube_golugovigusilog.pdf
    • http://www.logans-heroes.org/uploads/1/3/0/8/130873838/f51e0de0d0232d2.pdf
    • http://southernroofing.co.uk/uploads/1/3/0/8/130814843/movavixozogedabo.pdf
    • http://valkyriesurfer.com/uploads/1/3/0/2/130289271/4463836.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_off00006b2d.bin
2f3b4ac224e321097452b2bef4ab258acdb4dd86b2fc2dfbe1eff7bd8ee0c511		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B2D 7748 bytes

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