Malicious PDF — malware analysis report

Static analysis result for SHA-256 37bc8f0234e23fda…

MALICIOUS

PDF

33.6 KB Created: 2020-03-13 03:07:49 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6) First seen: 2026-05-08
MD5: 8e95db93e3137d956e6c4a5caed61c01 SHA-1: f8faba3584681528748816864ca37497f21d45e1 SHA-256: 37bc8f0234e23fdadb77f46a15d8b8d2ef2022ffe3cf4bcba43d963385a8229d
94 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, suggests a lure related to combining PDF files for free. The primary intent appears to be SEO spam or a link farm, directing users to numerous unrelated websites. No scripts were extracted from this sample.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9996

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://www.purplefinchhandbags.com/uploads/1/3/0/5/130588202/130588202.html#how+to+combine+two+pdf+files+for+free PDF link annotation
    • http://www.allinspired.shop/uploads/1/3/0/7/130775892/peduvon-fulupatog-xowuzuzazexeme.pdfIn PDF document text
    • http://prisonersofthejapanese.com/uploads/1/3/0/3/130313196/rubik.pdfIn PDF document text
    • http://jjbeef.com/uploads/1/3/0/6/130603767/228265.pdfIn PDF document text
    • http://avytraining.com/uploads/1/3/0/4/130490056/3560733.pdfIn PDF document text
    • http://myprimalliving.com/uploads/1/3/0/6/130604225/lanibezitatu_dovida_dixanodava_maxibo.pdfIn PDF document text
    • http://mconrad.me/uploads/1/3/0/5/130588710/raweb.pdfIn PDF document text
    • http://gracearnold.com/uploads/1/3/0/4/130436513/9e4ac.pdfIn PDF document text
    • http://mx.jarzbeeimages.com/uploads/1/3/0/8/130813877/fc0d4325c34a.pdfIn PDF document text
    • http://postmaster.bpelab.tech/uploads/1/3/0/8/130814122/6042658.pdfIn PDF document text
    • http://assemblychurch.net/uploads/1/3/0/7/130775380/1240084.pdfIn PDF document text
    • http://trustedfinancialpro.com/uploads/1/3/0/8/130874631/kusede_dusabekomir_totan_dedofamev.pdfIn PDF document text
    • http://cwegcommunity.org/uploads/1/3/0/4/130491852/d25e499a.pdfIn PDF document text
    • http://mhernandez.org/uploads/1/3/0/7/130738679/9167726.pdfIn PDF document text
    • http://petercolettiproperties.com/uploads/1/3/0/6/130640066/dfe89ea7.pdfIn PDF document text
    • http://exhibition-panel-hire.com/uploads/1/3/0/2/130271094/movetofejiwosup_biguwapotutoziv.pdfIn PDF document text
    • http://liquorfort.com/uploads/1/3/0/6/130620982/jadosodumodowuzuvada.pdfIn PDF document text
    • http://www.lionheartdesignbuild.com/uploads/1/3/0/2/130288402/1876075.pdfIn PDF document text
    • http://csuitecommando.com/uploads/1/3/0/8/130814769/60fe9b7.pdfIn PDF document text
    • http://prometeycy.com/uploads/1/3/0/2/130288532/2740188.pdfIn PDF document text
    • http://www.drcmullen.com/uploads/1/3/0/6/130605501/7bfea7e.pdfIn PDF document text
    • http://mta-sts.mail.iscebs-richmond.org/uploads/1/3/0/5/130551416/vigapefidem.pdfIn PDF document text

Related samples 1

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