Malicious PDF — malware analysis report

Static analysis result for SHA-256 8a68c2df73bd1923…

MALICIOUS

PDF

34.2 KB Created: 2020-04-11 06:02:53 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 42829eee57954401f3f16f7c8f13a411 SHA-1: e159ec90aa47d7ca234f37426e31b157f1ed5fb4 SHA-256: 8a68c2df73bd192396c0f552815d582ace5eb353b1f711143c0773481b47a008
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, contains references to scholarship and scholarship-related terms, suggesting a lure. The primary intent appears to be directing users to a network of websites, likely for SEO spam or to host 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://yinghuangwangshangyule.br3h.com/uploads/1/3/0/7/130738917/130738917.html#wayne+state+gold+scholarship
    • http://loner420house.ca/uploads/1/3/0/7/130775045/644763.pdf
    • http://byronequineassistedlearning.com/uploads/1/3/0/2/130287285/09df5d9.pdf
    • http://jumpforkidsla.org/uploads/1/3/0/9/130969504/6390189.pdf
    • http://timbermanconstruction.com/uploads/1/3/1/3/131398142/gekotivofu-vitibutowa.pdf
    • http://tenis2go.pl/uploads/1/3/0/7/130776034/xozatokove.pdf
    • http://starsandimagination.com/uploads/1/3/1/4/131453713/751603.pdf
    • http://tahoegoogletours.com/uploads/1/3/1/4/131438019/riraferoriwam.pdf
    • http://wilbrahamantiques.com/uploads/1/3/0/8/130874501/4665005.pdf
    • http://oliveryouthsoccer.com/uploads/1/3/1/4/131453384/521962a502455.pdf
    • http://aghomes.org/uploads/1/3/0/2/130287514/kegibewel-nizudew-fapevodedil-momadanefano.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_off00005c92.bin
ae72089d0c7814367aa412a346e6ca19ad59e832f9aeca732342212e66e8b596		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C92 8376 bytes

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