Malicious PDF — malware analysis report

Static analysis result for SHA-256 8393db1590cd7345…

MALICIOUS

PDF

35.4 KB Created: 2020-06-03 15:12:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7bfa597ae26687d3a85501d06f989c56 SHA-1: 0183ae3c5f857b1ca719488621fd48d4cf222346 SHA-256: 8393db1590cd734585bb499fa976a98391066e319b66f115f5a327c4e54f4841
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF document contains a large number of embedded URLs pointing to other PDF files across various domains. This behavior is indicative of a link farm or a distribution mechanism for malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this pattern, suggesting the document is part of a larger SEO manipulation scheme or a content distribution network. No scripts were extracted, limiting the analysis of direct payload execution.

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://sixtarubio.com/uploads/1/3/0/9/130969355/130969355.html#el+complot+mongol+pdf+completo
    • http://davidmcauley.com/uploads/1/3/1/4/131406982/26d45789a3.pdf
    • http://windshieldreplacementlasvegas.com/uploads/1/3/0/7/130738706/jobes.pdf
    • http://m.birthnaturallyri.com/uploads/1/3/1/3/131380723/667c01601fd9c.pdf
    • http://vmconstructioninc.net/uploads/1/3/0/4/130475980/juledinivujube.pdf
    • http://sprayfoaminsulationnc.info/uploads/1/3/2/3/132303001/29cd3.pdf
    • http://connor-payne.net/uploads/1/3/1/3/131398254/2587078.pdf
    • http://simplysaigeboutique.com/uploads/1/3/0/5/130589145/3f0a96874f03f.pdf
    • http://uhsalumniband.org/uploads/1/3/1/4/131437733/3459544.pdf
    • http://sixtarubio.com/uploads/1/3/0/9/130969355/terms.html
    • http://sixtarubio.com/uploads/1/3/0/9/130969355/dmca.html
    • http://sixtarubio.com/uploads/1/3/0/9/130969355/policy.html
    • https://fugokogan.files.wordpress.com/2020/06/wejojujelixi.pdf
    • https://jidibabeja.files.wordpress.com/2020/05/5618012314.pdf
    • https://jebituren.files.wordpress.com/2020/05/38510577867.pdf
    • https://goserogupuxe.files.wordpress.com/2020/05/xosenogog.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_off00005e66.bin
16742bc534c0046b2204922b593da14df8112be68e00af3c4d39af7d4ea53254		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5E66 10576 bytes

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