Malicious PDF — malware analysis report

Static analysis result for SHA-256 240d48d223d79030…

MALICIOUS

PDF

31.8 KB Created: 2020-03-24 22:14:20 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: c38d46a477b4f3fc05febe1d70f13dde SHA-1: d04c2501fbd7509e04ec5e47490be03cedc906c2 SHA-256: 240d48d223d79030f0dce6422c3dff7720ea5215ff9c1769b5e74bbc59b9d608
92 Risk Score

Malware Insights

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

The PDF file was flagged by a machine learning classifier as malicious. It contains a large number of external links, many of which point to PDF files with numeric or generic slugs, indicative of a link farm or SEO spam campaign. One of the embedded URLs, http://hazmatpackingandsupplies.com/uploads/1/3/0/8/130814020/130814020.html#this+feeling+alabama+shakes+lyrics+meaning, is directly present in the document body, suggesting a lure to a potentially malicious site.

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

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://hazmatpackingandsupplies.com/uploads/1/3/0/8/130814020/130814020.html#this+feeling+alabama+shakes+lyrics+meaning
    • http://www.waksvik.com/uploads/1/3/0/6/130604525/renilusipomil-gigexikiwapun-pajuf-lesigugikojebet.pdf
    • http://tsdf.com.au/uploads/1/3/0/6/130604098/vexubosoja.pdf
    • http://geekpursuits.org/uploads/1/3/0/5/130550787/puligis_buvipixo_loxedixezol_korusapelosodun.pdf
    • http://houseofgold.net/uploads/1/3/0/5/130550679/9380552.pdf
    • http://glashandellaren.com/uploads/1/3/0/6/130605190/497763.pdf
    • http://experiencebluegrass.net/uploads/1/3/0/6/130621292/7446315.pdf
    • http://www.nolanmarold.com/uploads/1/3/0/8/130814382/ruzoxadaro.pdf
    • http://grandrapids-therapist.com/uploads/1/3/0/6/130621838/vavafod.pdf
    • http://longwoodhomesforsale.net/uploads/1/3/0/5/130551013/roxogesek.pdf
    • http://hcc.us.com/uploads/1/3/0/2/130272395/videkup.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_off00005510.bin
c8cdb9dc1df32c024dd1962dc972b14ad1f6c11337ff836fcfc1cffabf045d5e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5510 7348 bytes

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