Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd90705177fd7642…

MALICIOUS

PDF

41.1 KB Created: 2020-04-06 14:28:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 410786ad1a26c1037d69d2d069a67588 SHA-1: cba86e184d39498702937df863ac07370e95313c SHA-256: cd90705177fd76423cf3481d999c0188e0ef8f91e99312f5bbb836bceca364f3
62 Risk Score

Malware Insights

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

The PDF document contains a heuristic firing for a link farm, pointing to numerous external PDF files hosted across different domains. The document body text, while partially garbled, includes a URL that is also part of this link farm. This suggests the primary purpose is to redirect users to a large number of potentially malicious or SEO-manipulated pages.

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://lulusboutique.net/uploads/1/3/0/5/130551986/130551986.html#spiritual+meaning+of+number+12+in+the+bible
    • http://morrisfamilyfund.org/uploads/1/3/1/1/131164199/d3b0f97baf29.pdf
    • http://loninkprojects.nl/uploads/1/3/0/7/130775627/rigen.pdf
    • http://gulphin.com/uploads/1/3/0/9/130969294/48555172bfcc64b.pdf
    • http://pugetsoundoutcasts.com/uploads/1/3/0/6/130621456/28dda6.pdf
    • http://atenderfamilycenter.org/uploads/1/3/0/7/130740196/dopejaguziwanoxag.pdf
    • http://majusejahteras.com/uploads/1/3/0/2/130272332/84d09662a.pdf
    • http://zhiweishi.cn/uploads/1/3/0/5/130588790/091ba685fa.pdf
    • http://ssperformancemassage.com/uploads/1/3/1/3/131379262/fejikitivasironeso.pdf
    • http://harvestrunningfestival.com/uploads/1/3/0/6/130639500/rotukewisoz.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_off00007647.bin
93c1e6e41375fa0bbd384fec6059d79b2109c87bd0fc49ffc3d52545789892e0		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7647 8124 bytes

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