Malicious PDF — malware analysis report

Static analysis result for SHA-256 376249479f264558…

MALICIOUS

PDF

35.6 KB Created: 2020-04-07 10:26:26 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 88d29589c8be7063572906a493123229 SHA-1: d26f5d953613266bec0fd81a79457bad656880dc SHA-256: 376249479f264558d32fa3ceb31cbffa80847579204b887db5584c421fe9cf02
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links pointing to various domains, a technique often used for SEO link farms or to distribute malicious content. The heuristic 'PDF_SEO_LINK_FARM' specifically flags this behavior. The embedded URLs and the document body suggest a lure related to product parts or information, directing users to a network of PDF files hosted on numerous unrelated domains. No scripts were extracted, limiting the ability to determine a specific payload.

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://avabaycompany.com/uploads/1/3/0/7/130738949/130738949.html#karcher+k+3.86+parts
    • http://salondefiestascapital.com/uploads/1/3/0/5/130541285/zusajutunapeb.pdf
    • http://ficat.us/uploads/1/3/0/6/130621436/788157.pdf
    • http://runningcode3.net/uploads/1/3/1/0/131070167/miwugukoxusefad_kazajavefuf_xurosuxerasa.pdf
    • http://lf-ant.com/uploads/1/3/1/4/131437544/fakaselefamuwo_fofijulalexo.pdf
    • http://fannyericsson.com/uploads/1/3/0/8/130874635/xorizejomud_sewafazivusilid.pdf
    • http://tigerser.com/uploads/1/3/0/5/130550993/pinunap.pdf
    • http://hcnnelsonjewelers.com/uploads/1/3/1/3/131378897/4738088.pdf
    • http://cencalpgf.com/uploads/1/3/0/7/130776177/8f8633649a4a3.pdf
    • http://bozemanradiant.com/uploads/1/3/1/4/131437766/xuvamufizutududifisi.pdf
    • http://kattpittman.com/uploads/1/3/0/7/130739154/07c9bd.pdf
    • http://computanti.com/uploads/1/3/0/3/130379178/54224.pdf
    • http://cohorsiustorum.org/uploads/1/3/0/2/130289734/4261539.pdf
    • http://life-with-lemons.com/uploads/1/3/0/3/130324350/67680a38e0.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_off000061bc.bin
188aabd1291b7a015d18ff836e01e9fca6ba0af7c55e5425b5d076ca4ea7bcbd		 pdf-font-stream PDF embedded font (sfnt) at offset 0x61BC 7828 bytes

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