Malicious PDF — malware analysis report

Static analysis result for SHA-256 38cae92c27b77a6b…

MALICIOUS

PDF

37.2 KB Created: 2020-04-12 03:10:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 64c31b4ebcf47b39c467bacf6ade927f SHA-1: f382e48c79aa68004d76be4ff1866ed8324c263f SHA-256: 38cae92c27b77a6bdf8e16984b69c202377133ba9de13eec0b395e744798d902
62 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 document body, though partially garbled, contains references to the wkhtmltopdf tool and a date, indicating it was likely generated programmatically. The primary intent appears to be directing users to external resources, potentially for SEO manipulation or to serve as a landing page for further malicious activity.

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://illuminationtms.com/uploads/1/3/1/4/131407857/131407857.html#riassunto+del+film+piccolo+principe
    • http://imaginarymonsters.net/uploads/1/3/1/4/131437222/kiladatetukivil.pdf
    • http://fgmsp.com/uploads/1/3/0/5/130551770/75b98ace63fc6.pdf
    • http://bethelamechurchluling.com/uploads/1/3/1/4/131454549/sezaxu.pdf
    • http://covedemond.net/uploads/1/3/1/4/131483598/wuwidugo.pdf
    • http://naturalfest.net/uploads/1/3/1/3/131383751/jusajaxoxo.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_off00006b26.bin
b1ec4b1581993cf7b0dcb81d786e2006beb3d7697dbdf127598adcb2cd40f160		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B26 8328 bytes

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