Malicious PDF — malware analysis report

Static analysis result for SHA-256 efed415d60281a95…

MALICIOUS

PDF

43.2 KB Created: 2020-03-21 11:50:46 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 630aa60de6ce69b4c7cab1133ebfef71 SHA-1: ce571770fad243a6930dfb9663b87f8b3c635be4 SHA-256: efed415d60281a9549ff2ee13f48fb8c1ae0f52cb088e81638db02de52ec664b
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO spam operation. The document body contains garbled text and a reference to 'wkhtmltopdf', indicating it was likely generated programmatically. The primary goal appears to be directing users to a vast collection of external PDF files.

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://klokkeraadgivning.com/uploads/1/3/0/8/130813366/130813366.html#la+dama+boba+pdf+francais
    • http://allaymedicinal.com/uploads/1/3/0/6/130604810/vaxegiridip-benebamewikulu-latorobobopu-disatisanek.pdf
    • http://www.ketymae.com/uploads/1/3/0/5/130542729/duberofuxivugi.pdf
    • http://classroomsinthekitchen.com/uploads/1/3/0/5/130551864/vugajixelikolaxot.pdf
    • http://www.trump-unpresidented.com/uploads/1/3/0/2/130270989/9175380.pdf
    • http://whyislam.in/uploads/1/3/0/7/130775376/8878612.pdf
    • http://jolyongray.net/uploads/1/3/0/4/130476075/8801151.pdf
    • http://www.toulascreole.com/uploads/1/3/0/8/130813669/0c7e19.pdf
    • http://kirby-crow.org/uploads/1/3/0/6/130620942/zipewujixu_boridinepivom_xivavuf.pdf
    • http://designsacredgarden.com/uploads/1/3/0/6/130621505/vuzokafig.pdf
    • http://bornthisday.net/uploads/1/3/0/7/130774977/d05a89b3.pdf
    • http://unutma.com/uploads/1/3/0/5/130542769/jatitezuwoja.pdf
    • http://atcofootdoc.com/uploads/1/3/0/4/130489331/ruxuvupawovov-rofuju-vukepemix.pdf
    • http://lubbockministry.com/uploads/1/3/0/8/130814483/4745145.pdf
    • http://www.thecustomcaninekitchen.com/uploads/1/3/0/5/130540021/gilapofemakazoroba.pdf
    • http://svnforce.com/uploads/1/3/0/2/130270831/sapuvezedezef-gunuwaliroketa-delupi.pdf
    • http://zerocommissionfee.com/uploads/1/3/0/6/130604858/negijidog-rinusevuzupesi-foxomigogoxevit.pdf
    • http://www.youmattercoach.com/uploads/1/3/0/4/130476104/jofawewebem-tixazew-pijowaxubusaj.pdf
    • http://wrecklesswraps.net/uploads/1/3/0/6/130603943/51dddea1d85a0.pdf
    • http://mail.midsussexdogtrainingschool.co.uk/uploads/1/3/0/9/130969816/9827356.pdf
    • http://baguiosoundsrental.com/uploads/1/3/0/2/130272291/junoku.pdf
    • http://alicewild.shop/uploads/1/3/0/6/130603725/1961306.pdf
    • http://leeslawnmowerandsmallenginerepair.com/uploads/1/3/0/6/130605069/5213424.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_off00007835.bin
5bb864cc805c90532da2acd1719df2f559c58c6c6f6ca560103cf54b46778cae		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7835 11092 bytes

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