Malicious PDF — malware analysis report

Static analysis result for SHA-256 46ea30c5a80e021f…

MALICIOUS

PDF

45.4 KB Created: 2020-05-04 14:12:21 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8c9aadc2c4108566ff2fb50890284c19 SHA-1: 64636e8c6f1264c16bcbfac2c343b133cf331c8f SHA-256: 46ea30c5a80e021fe866eb0d440fe7b16788b2b1670e9803132af4f7c01b6b96
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, many of which point to unrelated domains and appear to be part of a link farm. The document body, though heavily obfuscated, contains text related to a 'career objective for manual tester' and references the wkhtmltopdf tool, suggesting a lure to potentially malicious websites. The primary attack pattern involves directing users to a network of SEO-optimized PDF files hosted on various domains, likely for traffic generation 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://kidscook4acause.org/uploads/1/3/0/6/130621105/130621105.html#career+objective+for+manual+tester
    • http://theripsychicmedium.com/uploads/1/3/0/5/130541384/3857967.pdf
    • http://supremeinsuranceagency.com/uploads/1/3/1/4/131482850/sozuzabaluko_fometesenexemu.pdf
    • http://mobilehomemcg.com/uploads/1/3/1/1/131163917/pubefafitipepemu.pdf
    • http://whentigerssmoked.com/uploads/1/3/1/4/131452963/6947906.pdf
    • http://myexplorelive.com/uploads/1/3/1/3/131398022/zavelixakafisoxudeb.pdf
    • http://clearlakepool.com/uploads/1/3/0/3/130313098/5c1dfe73903.pdf
    • http://marcjordanflatmuzik.com/uploads/1/3/0/8/130814713/pinakizivedezavuk.pdf
    • http://studioshiuli.com/uploads/1/3/0/5/130551611/93f3d7c00d.pdf
    • http://bowiediesel.com/uploads/1/3/0/6/130639201/buxerolalinuk.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • 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_off000087b9.bin
ee5aed69e6d09e8a9a36bc8b565d2a89ccd2100f3f6bd049cf85d35ff85d0f95		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87B9 10568 bytes

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