Malicious PDF — malware analysis report

Static analysis result for SHA-256 e5bff5e40e6d1b38…

MALICIOUS

PDF

39.9 KB Created: 2020-04-07 07:48:24 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 890fd2f8d214f5fa384983b897f5512d SHA-1: 14c43aed24f09f0d2c02c398a051b6c407ee5047 SHA-256: e5bff5e40e6d1b38ff0a394d189900b4a9a7e26feeaecb75676450139d79c9ab
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 PDF files hosted on different domains, suggesting a link farm or distribution mechanism. The embedded URLs and the document body text, though partially obfuscated, reinforce the presence of these external links. The primary purpose appears to be directing users to external resources, potentially for SEO manipulation or to serve as a distribution point for further malicious content.

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://changewhatyoubelieve.com/uploads/1/3/1/1/131164032/131164032.html#analisis+de+un+articulo+de+periodico+ejemplo
    • http://mix-moment.com/uploads/1/3/0/5/130588874/nuxebozanewij.pdf
    • http://etxsuperstars.com/uploads/1/3/1/3/131398449/simimufexufovuwodosi.pdf
    • http://gentletouchdelivery.com/uploads/1/3/0/3/130323581/f3755fd021f321.pdf
    • http://corazondemujer.net/uploads/1/3/0/7/130776197/kidazitaratirib.pdf
    • http://cumminslandsolutions.com/uploads/1/3/1/0/131071111/f3eae3b52.pdf
    • http://landmarkservices.net/uploads/1/3/0/7/130775712/palojukelij-loretijat-nuzilenubukigo.pdf
    • http://chictravelmama.com/uploads/1/3/0/2/130287302/vogozurejikufowex.pdf
    • http://theopennetworkqc.org/uploads/1/3/0/9/130968925/gomitinevuwi-lomalunemoxi-mesunen.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_off00006f4e.bin
ccc928eb2e5d80f4678cfe9e5d0b4f724d21d4dcd8a77cc516fe4421e2fedfe4		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6F4E 9396 bytes

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