Malicious PDF — malware analysis report

Static analysis result for SHA-256 7659a2f106a3fcc3…

MALICIOUS

PDF

44.3 KB Created: 2020-03-20 08:05:39 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9666d741aed95fe8aca915ceb9cbc7d2 SHA-1: dde66b3a4a084e99c870cd5f45a6ab7146633342 SHA-256: 7659a2f106a3fcc3259549a9d0934d46b6a9ef1d472e14caa305c9fe13a3f080
96 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1059.007 JavaScript

The PDF document contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body, though partially corrupted, suggests a 'Manual de políticas de seguridad de la información' lure, indicating a phishing or malware distribution attempt. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs further supports this assessment.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://sdsufiji.com/uploads/1/3/0/9/130969001/130969001.html#manual+de+pol%C3%ADticas+de+seguridad+de+la+informaci%C3%B3n+m-ti-01
    • http://www.bouncevictoria.ca/uploads/1/3/0/5/130589310/mawerel.pdf
    • http://www.nladaycare.org/uploads/1/3/0/5/130539085/zedepajofixipup.pdf
    • http://mta-sts.mail.eagleforumoc.com/uploads/1/3/0/6/130621859/9eafd491c4.pdf
    • http://www.marshallsheatingcoolingllc.com/uploads/1/3/0/3/130379435/kiripikadexeze.pdf
    • http://tiffanyetfleurs.com/uploads/1/3/0/4/130435544/majewudopidefuzovan.pdf
    • http://target.jropro.com/uploads/1/3/0/8/130874297/miwuxagega.pdf
    • http://proper-boston.com/uploads/1/3/0/8/130874108/381480.pdf
    • http://businessempoweredstyle.com/uploads/1/3/0/6/130604558/xujaposavijuwopijim.pdf
    • http://eplpna.com/uploads/1/3/0/8/130874012/4c68b1098adac2.pdf
    • http://abrushwithnature.studio/uploads/1/3/0/6/130621119/bibisuv-xojimolakokoj.pdf
    • http://everestecoexpedition.com/uploads/1/3/0/2/130272232/defixixekuxebopa.pdf
    • http://macyneedum.com/uploads/1/3/0/5/130543941/8248152.pdf
    • http://onenessfellowship.com/uploads/1/3/0/4/130477135/lidutaluxax.pdf
    • http://clarazul.com/uploads/1/3/0/7/130775870/e5d0eb13.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_off000082af.bin
bee49e627ac2e4150cbc28c81b4907fd4261ec0b53a2b327560f7bf2174d75d3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x82AF 8292 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.