Malicious PDF — malware analysis report

Static analysis result for SHA-256 ceb682e38434006d…

MALICIOUS

PDF

39.8 KB Created: 2020-03-21 11:45:00 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8f3b35553b5dcd540bed1dcd80fbc337 SHA-1: 8d94038f14a2a8612e84650ed29deb94db278f24 SHA-256: ceb682e38434006d9ee015a0630e6665ba4cbfa3619e0fcaf6260081f4bc523a
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The heuristic 'PDF_SEO_LINK_FARM' indicates a mass external PDF link farm, suggesting a tactic to manipulate search engine results or distribute content across many sites. The document body contains the phrase 'Les miserables resumen pelicula', which appears to be a lure to attract users to click on the embedded links. 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://estudio-thuban.com/uploads/1/3/0/7/130739878/130739878.html#les+miserables+resumen+pelicula
    • http://www.aesircoils.com/uploads/1/3/0/4/130483886/8510838.pdf
    • http://projectopendoor.net/uploads/1/3/0/9/130969938/9a5cb7.pdf
    • http://collaborativefamilyservices.net/uploads/1/3/0/8/130814286/mukus.pdf
    • http://high-frequency.shop/uploads/1/3/0/5/130590312/zarafiz-bizemebuguki-volalexotix-jobaz.pdf
    • http://whisperingwillowsalpacas.net/uploads/1/3/0/4/130436007/1424476.pdf
    • http://onesuggestion.org/uploads/1/3/0/5/130543373/aac54f.pdf
    • http://bkmm.nl/uploads/1/3/0/8/130874247/jomur.pdf
    • http://www.churchonthesquare.net/uploads/1/3/0/2/130287456/sonanudusez.pdf
    • http://el043.elrepco.com/uploads/1/3/0/2/130270971/9ce7b325e.pdf
    • http://charity-parties.com/uploads/1/3/0/6/130621196/c274941087698.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_off00007147.bin
95dcfa97f2d60e18181ed3e432a423703953438f6f4b2e0673c92ddb87e0745e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7147 8772 bytes

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