Malicious PDF — malware analysis report

Static analysis result for SHA-256 8b31be7fba379660…

MALICIOUS

PDF

32.5 KB Created: 2020-04-11 12:15:09 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 60fee4ddaa24b12e784de4d96637e55b SHA-1: d54aad9fc2f9125923829134e50f7b6bcfd1ce8e SHA-256: 8b31be7fba379660ede3813b678afbc85a2231ef03784e92637357126937c5d3
62 Risk Score

Malware Insights

MITRE ATT&CK
T1598 Gather Victim Identity Information T1204 Malicious Link

The PDF file contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The document body also contains some of these URLs, reinforcing the link farm attack pattern. 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://whiteowlcolorstudio.com/uploads/1/3/0/5/130541221/130541221.html#flames+of+the+faithful
    • http://sclassified.net/uploads/1/3/0/9/130969062/4929079.pdf
    • http://starmapseries.com/uploads/1/3/1/4/131437017/nesaninen.pdf
    • http://beyondhillco.com/uploads/1/3/1/0/131070220/1427995.pdf
    • http://edgrowthgroup.net/uploads/1/3/0/2/130272362/6267820.pdf
    • http://ww.royalanimalhealthuniversity.com/uploads/1/3/0/2/130289554/lomebumiguxex.pdf
    • http://zoelifeprayercoachingcenter.com/uploads/1/3/1/1/131163533/fodulaluvalera.pdf
    • http://hostmaster.ferienhaus-insel-texel.com/uploads/1/3/0/5/130588258/kofezukezajon.pdf
    • http://torayajaigarvinfoundation.net/uploads/1/3/0/2/130289524/romudizemefexuxe.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_off0000587b.bin
4a6299faebcd61b45bc4ffb29fca18fdccc5fc1967d12936c5690f67e25e78b1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x587B 7756 bytes

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