Malicious PDF — malware analysis report

Static analysis result for SHA-256 e87710e1efd5681b…

MALICIOUS

PDF

38.4 KB Created: 2020-03-12 13:24:21 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8685fc1c43d1936e40acc376cb37b4e7 SHA-1: d0d2bb10744768a9cc1ab587e68c4148e114cd58 SHA-256: e87710e1efd5681ba5871ba3383f830d15796547fb148f9ebbe8dda7474ff039
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links pointing to various domains, suggesting a link farm or SEO abuse tactic. The primary heuristic indicates a 'PDF_SEO_LINK_FARM' which is designed to generate traffic or manipulate search engine results. The embedded URLs are likely part of this scheme, aiming to direct users to potentially malicious content hosted across these 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://starrmark.net/uploads/1/3/0/5/130543156/130543156.html#define+amylase+rich+food
    • http://tiffanyjsellers.com/uploads/1/3/0/5/130539843/siwekezesoxiledu.pdf
    • http://darenbrayson.com/uploads/1/3/0/6/130621648/lagebaxarokatulevof.pdf
    • http://phillycredithelp.com/uploads/1/3/0/4/130476671/gudosebujunoz.pdf
    • http://myboathaus.com/uploads/1/3/0/6/130620795/2185578.pdf
    • http://www.brooksmanagementconsulting.co.uk/uploads/1/3/0/6/130604074/juwafagube-jisuneduxuvakav.pdf
    • http://advancedsecuritygroup.net/uploads/1/3/0/4/130435581/bixosilumob.pdf
    • http://hostmaster.picasnc.it/uploads/1/3/0/2/130288864/ba75147aaf5be.pdf
    • http://sommerfestendingen.ch/uploads/1/3/0/6/130620314/8655677.pdf
    • http://charlestonstemfestival.com/uploads/1/3/0/7/130776253/a3402dfb.pdf
    • http://www.my12kinds.com/uploads/1/3/0/5/130542936/297df.pdf
    • http://ellashae.com/uploads/1/3/0/6/130621814/xixemebekim_murobemu_mupew_wigun.pdf
    • http://trestlestop.com/uploads/1/3/0/7/130775688/5952217.pdf
    • http://www.newsugarmommys.com/uploads/1/3/0/8/130874633/likapim.pdf
    • http://www.jcountyacademy.org/uploads/1/3/0/2/130272877/b56ef77d63d7a15.pdf
    • http://mayaoak.club/uploads/1/3/0/2/130288542/biteranixuvapodi.pdf
    • http://cpkeepsakes.com/uploads/1/3/0/6/130621998/e9a3e862.pdf
    • http://feezell.org/uploads/1/3/0/4/130435914/wezefuribamugizewup.pdf
    • http://l3games.net/uploads/1/3/0/7/130739165/pigowebimow.pdf
    • http://utahdivorceconsulting.com/uploads/1/3/0/6/130639865/pulifejug.pdf
    • http://khanomar.com/uploads/1/3/0/6/130620947/797721.pdf
    • http://natgastrucks.com/uploads/1/3/0/3/130323811/7950256.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_off0000705e.bin
2e70b9691ccd75435a349d99f66dd903ca60070f25d1d6eaadad90928cc23b2d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x705E 6960 bytes

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