Malicious PDF — malware analysis report

Static analysis result for SHA-256 59da9631127ebb32…

MALICIOUS

PDF

35.0 KB Created: 2020-06-07 23:49:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8c7f0cfebae3f4477b3cae5c9e92a21f SHA-1: 0872b23415f86ceb927d95167730463574f607f2 SHA-256: 59da9631127ebb32e1f751143315a974beaa35e8feab2090c5fae7b462ae84f4
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. The document body is heavily obfuscated but appears to contain some of these URLs. The primary intent seems to be directing users to a network of linked pages, likely for SEO manipulation or to serve as a landing page for further malicious activity. No scripts were extracted, limiting the ability to determine specific execution behaviors.

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://cpcalendars.rusticcandlecompany.com/uploads/1/3/0/2/130289784/130289784.html#c%25C3%25B3mo+poner+globos+en+un+poste
    • http://moph402.org/uploads/1/3/0/2/130291694/rokarul_wuwuda_xemax.pdf
    • http://cpanel.thebandroomspage.com/uploads/1/3/0/5/130547812/bakupadedudas-wekoker.pdf
    • http://docklandsprimarycarenetwork.net/uploads/1/3/1/6/131637309/suvuveb.pdf
    • http://mail.angstcoach.nl/uploads/1/3/1/8/131856034/5712423.pdf
    • http://mta81.qualitynow.net/uploads/1/3/0/2/130274330/ca5349edf98.pdf
    • http://5r65d7.bdgct.com/uploads/1/3/0/6/130621376/dupazorigam.pdf
    • https://jurutetufot.files.wordpress.com/2020/06/33560967325.pdf
    • https://gopisasiru.files.wordpress.com/2020/06/39558077380.pdf
    • https://jisavope.files.wordpress.com/2020/06/50795786854.pdf
    • https://ruzulujaso535019409.files.wordpress.com/2020/06/kovuwulalewatuzakikudunit.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_off00005dd8.bin
d8c1f1f99194ebb64f1c509dee00808bb622a4259f6ac312153e60b1bf651f4a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5DD8 10172 bytes

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