Malicious PDF — malware analysis report

Static analysis result for SHA-256 f3508200c9b3a984…

MALICIOUS

PDF

38.9 KB Created: 2020-03-23 13:05:11 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 1ab52e9e372c360cdfab0ff8cc24b9e6 SHA-1: df13d90afba9ea71ba88d37350f42d22e65c0b96 SHA-256: f3508200c9b3a98400d4f509c242969f15fb4a40659bba6bb6b6083d4768ae49
70 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, many of which point to other PDF files. This is indicative of a link farm designed to host malicious content or to improve search engine ranking for malicious sites. The presence of a 'download button' heuristic further supports the idea that the document is intended to trick users into clicking links. No scripts were extracted, and the document body was heavily corrupted, limiting further analysis.

Heuristics 4

  • 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.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • 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://caletaylor.com/uploads/1/3/0/5/130550827/130550827.html#town+of+dartmouth+ma+board+of+health
    • http://merryxmasgreetings.net/uploads/1/3/0/5/130588670/xejel.pdf
    • http://hostmaster.supercleanqueens.com/uploads/1/3/0/5/130589270/2165587.pdf
    • http://www.wearefue.org/uploads/1/3/0/7/130775249/1083164.pdf
    • http://apartmentapplication.net/uploads/1/3/0/6/130639133/nivikogega.pdf
    • http://www.bollywoodtavern.com/uploads/1/3/0/5/130550657/9932854.pdf
    • http://www.vcare.nl/uploads/1/3/0/6/130604579/sasaxexikugojed_dogekesidimij_zanuset_dixiwoxoneva.pdf
    • http://charmlitmagshop.org/uploads/1/3/0/6/130604687/ba792e88.pdf
    • http://prime-property-investments.com/uploads/1/3/0/6/130620937/zidizejebutix.pdf
    • http://theportraitking.com/uploads/1/3/0/5/130551576/jufodoj_rivebakite.pdf
    • http://diamondskyshop.net/uploads/1/3/0/7/130775115/6478711.pdf
    • http://mta-sts.mx.jennymariescrackers.com/uploads/1/3/0/8/130814339/ribopojefo_tamevaxitafivi.pdf
    • http://santarosalandscaping.org/uploads/1/3/0/6/130639059/luzerezinoba-vojobumuvex-sajatemixow.pdf
    • http://thebuzz-magazine.com/uploads/1/3/0/5/130589178/9965502.pdf
    • http://aataxservices.com/uploads/1/3/0/7/130739463/patevik-kenotuguwole.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_off00006f9d.bin
4ab7b9d7e6ba2ce4db763dac1bf35cf0dd3dd537430e8b343a0a93c5c1bbb383		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F9D 8016 bytes

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