Malicious PDF — malware analysis report

Static analysis result for SHA-256 fae3485900bf3e35…

MALICIOUS

PDF

35.7 KB Created: 2020-05-13 11:43:19 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c0eded2302e55251351b6e0748084285 SHA-1: f8972b85596fa5b1d4804682b2e056459df7d35e SHA-256: fae3485900bf3e35a8ba8e114535cd79d9540c2ed9ba2d392ffb9849fba24e6d
92 Risk Score

Malware Insights

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

The PDF document 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 SEO manipulation tactic. The ML classifier also strongly flagged this PDF as malicious. The primary intent appears to be directing users to a network of external PDF files, potentially for distributing malware or engaging in phishing activities.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9999

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://miasfashionmb.com/uploads/1/3/0/8/130814562/130814562.html#edge+fusion+software
    • http://takemyfatoff.com/uploads/1/3/0/8/130874540/9c2bc.pdf
    • http://labradorablelove.com/uploads/1/3/0/2/130271096/jamobupo.pdf
    • http://evetheatrecompany.org/uploads/1/3/1/3/131384694/sosekol-ruroxibidi-fuxojupuvi.pdf
    • http://touristsaccidentslawyer.com/uploads/1/3/0/6/130639710/mewowugogoxerosupuje.pdf
    • http://achsp.org/uploads/1/3/0/4/130483236/797a0ff5b304b48.pdf
    • http://shinersflexwash.com/uploads/1/3/1/3/131383750/febati.pdf
    • http://riggingdeals.com/uploads/1/3/0/7/130776877/9056241.pdf
    • http://entretiendeneigementolly.org/uploads/1/3/0/5/130588434/basozafu.pdf
    • http://marketing-for-yogis.com/uploads/1/3/0/5/130590363/judubabesog.pdf
    • http://onebirdgames.com/uploads/1/3/1/1/131163761/senuzax-danuzip-mikegifakop-lunokabevosir.pdf
    • http://yosemitefineartacademy.com/uploads/1/3/1/3/131398025/tusab-votujaroweru.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_off00005e86.bin
f307de986667ed074b206b74fbc27d9f6b2e29ed3ae0f5bceb3296ed89ec8677		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E86 10932 bytes

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