Malicious PDF — malware analysis report

Static analysis result for SHA-256 35a7cb8614a7b277…

MALICIOUS

PDF

41.8 KB Created: 2020-05-15 01:50:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2020-09-24
MD5: 403e3c9c32b9da0e987b723aab0df163 SHA-1: 41135ee146350e7771c2e5f856450b3a3cb11c1b SHA-256: 35a7cb8614a7b277f81a4c2179870600c5eb69ef14afc1328dc0b300fe0e3972
96 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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or distribution network. The primary purpose appears to be directing users to these external resources, potentially for SEO manipulation or to serve as a lure for further malicious activity. No scripts were extracted, limiting the analysis of direct payload execution.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • 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://templestoweroofing.com/uploads/1/3/1/6/131606411/131606411.html#jugglerz+city+riddim PDF link annotation
    • http://finfishptyltd.com/uploads/1/3/1/8/131856937/torirodasirep.pdfIn PDF document text
    • http://thejaniehaddadtompkins.com/uploads/1/3/0/8/130814328/vetamefelep.pdfIn PDF document text
    • http://quantummethods.org/uploads/1/3/1/1/131164320/gagumu.pdfIn PDF document text
    • http://antoniogcacho.com/uploads/1/3/0/3/130323465/gebofatipax.pdfIn PDF document text
    • http://meetcoe.com/uploads/1/3/0/7/130776328/c8e8aef4e71a37.pdfIn PDF document text
    • http://apconstruction.org/uploads/1/3/0/5/130589423/bamof-xawukozora-tanizikel-jisow.pdfIn PDF document text
    • http://bimaservices.net/uploads/1/3/0/8/130813478/diwekerowi-pakikefuxamijo-xosanosux.pdfIn PDF document text
    • http://mglobalsolutions.org/uploads/1/3/1/4/131437249/komedasexi.pdfIn PDF document text
    • http://monasteriumlab.eu/uploads/1/3/0/7/130738912/ginutebitajowewa.pdfIn PDF document text
    • http://crazyladiesdesigns.com/uploads/1/3/1/1/131163751/figozelipigimod_rodivo_tejosuwatazu_xexejurulabode.pdfIn PDF document text
    • http://paulghio.com/uploads/1/3/0/7/130739090/cdb868b.pdfIn PDF document text
    • http://jennifairbanksdesigns.com/uploads/1/3/0/8/130814681/wifapobokarebesife.pdfIn PDF document text
    • http://globaly.services/uploads/1/3/1/3/131398380/c2976bc67.pdfIn PDF document text
    • http://nursinghomemedicaidconsultant.com/uploads/1/3/0/4/130488396/venuper-geborixos-mufalejoloja.pdfIn PDF document text
    • http://don-glyndatravel.com/uploads/1/3/1/6/131637219/pojoluximexufu.pdfIn PDF document text
    • http://secretsinsthemovie.com/uploads/1/3/0/8/130873978/31858e059.pdfIn PDF document text
    • http://123chinese.org/uploads/1/3/1/3/131381489/dokeliwajagu.pdfIn PDF document text
    • http://legacyinwords.com/uploads/1/3/1/8/131856068/5252641.pdfIn PDF document text
    • http://alcorndesigns.com/uploads/1/3/1/4/131453463/7621b6a6.pdfIn PDF document text
    • http://dreamfreq.com/uploads/1/3/0/6/130605331/siweriloj.pdfIn PDF document text
    • http://partywithapurposeuth4mdgs.com/uploads/1/3/0/8/130874570/ligakudav.pdfIn PDF document text
    • http://rustichomesteaddesigns.com/uploads/1/3/0/4/130490776/d15e8f9d205.pdfIn PDF document text
    • http://conceptarian.com/uploads/1/3/0/6/130604779/0ff96b.pdfIn PDF document text
    • http://cooltera.com/uploads/1/3/1/4/131454580/d688a72.pdfIn PDF document text
    • http://complicatedinc.org/uploads/1/3/1/4/131453397/2610749.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 1

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007657.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7657 10552 bytes
SHA-256: 6e6c95678ba6ed82b5bb10fe7b5af578530a9f2302763c8347f437a8bf5e79e4