Malicious PDF — malware analysis report

Static analysis result for SHA-256 592172ea420c6c51…

MALICIOUS

PDF

34.4 KB Created: 2020-06-02 01:01:49 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 0a137d61692146d7dfa58858b64c35b8 SHA-1: 1f888adbadb830af47bd51078e42a5b36e5fc36a SHA-256: 592172ea420c6c515f4aaec8d17d7a8bfd475cfca79d06547b2b8a54b329fd4a
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, many of which point to domains that appear to be part of an SEO spam or link farm operation. The document body mentions 'Nordictrack c2000 treadmill belt adjustment', suggesting a lure to attract users interested in that topic. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates this is not a legitimate document but rather a mechanism to drive traffic to numerous unrelated sites, likely for malicious purposes such as phishing or distributing further malware.

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://zenithhomesllc.com/uploads/1/3/0/6/130639721/130639721.html#nordictrack+c2000+treadmill+belt+adjustment
    • http://yogapilatespersonaltraining.com/uploads/1/3/0/9/130969639/0ac744158443.pdf
    • http://educationaufoyer.com/uploads/1/3/0/9/130969839/9315198.pdf
    • http://mrpeplin.info/uploads/1/3/0/2/130289204/9441625.pdf
    • http://perthtradereviews.com/uploads/1/3/0/8/130813899/xomunad-gagirotumedupiv-mawirejegi.pdf
    • http://badmamablog.com/uploads/1/3/1/3/131383204/72c6534f.pdf
    • http://lifemadehappy.com/uploads/1/3/0/6/130604980/lababemiw-mofirera-xapagimibiledu.pdf
    • http://autodiscover.christianhollowfarm.com/uploads/1/3/0/2/130271219/domibosigij.pdf
    • http://mail.ldcc.nl/uploads/1/3/0/6/130604933/832936f0.pdf
    • http://zenithhomesllc.com/uploads/1/3/0/6/130639721/terms.html
    • http://zenithhomesllc.com/uploads/1/3/0/6/130639721/dmca.html
    • http://zenithhomesllc.com/uploads/1/3/0/6/130639721/policy.html
    • https://gimixose.files.wordpress.com/2020/05/7071700181.pdf
    • https://kegedepubu.files.wordpress.com/2020/05/79398211639.pdf
    • https://noginamopak.files.wordpress.com/2020/05/tawidamibadigo.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_off00005c78.bin
4befd1b9da6e74b384ea0b409da3ae7815e675db5207aa2fca90c4ec5ad3fbd3		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5C78 9820 bytes

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