Malicious PDF — malware analysis report

Static analysis result for SHA-256 c561cfcc4a69a7a3…

MALICIOUS

PDF

34.4 KB Created: 2020-04-09 22:29:56 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5424d8f9bd42986bdc3419454478c100 SHA-1: 682f2c1f9c781bbe1a0c875e54917335c8161a7e SHA-256: c561cfcc4a69a7a3097cb29c90e4c4658089ec3fa2762bc211aa76088ab7d3d7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment T1204.002 Malicious Link

The PDF document contains a significant number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains text related to 'Internet safety pledge cub scouts' and references wkhtmltopdf, suggesting a potential lure. The primary attack pattern involves directing users to a large farm of external URLs, which could be used for SEO manipulation, phishing, or hosting 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://annielande.org/uploads/1/3/0/5/130545633/130545633.html#internet+safety+pledge+cub+scouts
    • http://qaoi.org/uploads/1/3/1/3/131384468/regodas.pdf
    • http://mysoulsingsstudio.org/uploads/1/3/0/4/130476215/bimikixopowo_zifenageje_natobaxarig_derupisujim.pdf
    • http://survivingwidowhood.org/uploads/1/3/0/8/130814754/7323972.pdf
    • http://casecontroltechnology.com/uploads/1/3/0/5/130539182/9759916.pdf
    • http://boucherlandscaping.net/uploads/1/3/0/2/130291809/pejovoridati.pdf
    • http://burtandbrewington.com/uploads/1/3/0/5/130588346/1649368.pdf
    • http://daydreamerphotography.org/uploads/1/3/1/4/131453031/voboza.pdf
    • http://pastandpresentauction.com/uploads/1/3/0/7/130738534/92935cc.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_off00005f28.bin
b85cf2d7e0aae28a1f265f9d6e89ef3661866f4e94be93f55b132f2ac03a67e9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5F28 7664 bytes

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