Malicious PDF — malware analysis report

Static analysis result for SHA-256 3874b82101863c0e…

MALICIOUS

PDF

53.1 KB Created: 2020-03-08 08:54:25 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5f2d0c53d63f786c761624da8c438807 SHA-1: 98deb781d771be97789ee677d30f35c7b2500417 SHA-256: 3874b82101863c0ec0a2c39bea180791eea47b9a246222edba10fd259aec38b9
62 Risk Score

Malware Insights

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

This PDF document is designed to appear as a legitimate health screening document to trick users into clicking malicious links. The PDF contains a large number of external links, many of which are hosted on similar domains with numeric slugs, suggesting a link farm or SEO abuse tactic. The primary link directs to 'brakeactive.com' which is presented as relevant to the document's theme. No scripts were extracted, and the document body was heavily obfuscated, limiting deeper analysis of the payload.

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://brakeactive.com/uploads/1/3/0/3/130379426/130379426.html#occupational+health+screening+and+medical+surveillance
    • http://eastelephant.us/uploads/1/3/0/4/130476340/tunuvix_gufipudit.pdf
    • http://boutiqueinsolite.com/uploads/1/3/0/5/130588437/tidunex.pdf
    • http://massagefordog.com/uploads/1/3/0/2/130273804/sogapositutogetikika.pdf
    • http://wildfantasycat.com/uploads/1/3/0/6/130620842/6150930.pdf
    • http://mta-sts.divinefield.com/uploads/1/3/0/6/130639539/76aa3320ca95.pdf
    • http://sacequine.com/uploads/1/3/0/4/130436122/7752964.pdf
    • http://princetonfishandgameassociation.com/uploads/1/3/0/7/130775633/pifabuvupuf.pdf
    • http://preparetocare.net/uploads/1/3/0/5/130550812/gosenulobixo-vumiw-rojekawep.pdf
    • http://www.mhdany.org/uploads/1/3/0/4/130491179/febujosigujepabopisi.pdf
    • http://naturaphysicaltherapy.com/uploads/1/3/0/6/130639655/nibonudufudidim-masavur-ravutapodepej-zibatomunejizel.pdf
    • http://mrsottocounselingcorner.com/uploads/1/3/0/3/130324315/f9ce97f728d.pdf
    • http://wildrepurposed.com/uploads/1/3/0/7/130740250/2396545.pdf
    • http://www.joget.net/uploads/1/3/0/7/130738979/cab8602de2489d6.pdf
    • http://godlygovsnov2018writein.org/uploads/1/3/0/8/130814783/riwowejenawixadog.pdf
    • http://www.fosrocindia.com/uploads/1/3/0/4/130478433/vodajemilosatu.pdf
    • http://www.mail.rainiernetworks.com/uploads/1/3/0/7/130775366/3069239.pdf
    • http://www.midlandfellowshipchurch.com/uploads/1/3/0/7/130775822/ratuw-witoke-marusedipusu-wixadow.pdf
    • http://montecarloproductionsmagazine.com/uploads/1/3/0/4/130435649/6510152.pdf
    • http://crushco-engineering.com/uploads/1/3/0/5/130551298/9133483.pdf
    • http://mta-sts.mail.nicolemessina.com/uploads/1/3/0/2/130289632/8764760ab1.pdf
    • http://socialstarllc.com/uploads/1/3/0/2/130288915/nodakijinuligu.pdf
    • http://hostmaster.health-and-wellbeing-week.co.uk/uploads/1/3/0/5/130538841/aca4d034b3.pdf
    • http://www.formations-autrementdecouverte.com/uploads/1/3/0/6/130605263/8b0fd9cd.pdf
    • http://wrightmcleod.com/uploads/1/3/0/2/130291588/3414004.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_off0000a697.bin
526e01c39824d7821671e68bce993bb07e7d456b253b2ce3b9336a918c676610
pdf-font-stream PDF embedded font (sfnt) at offset 0xA697 8068 bytes