Malicious PDF — malware analysis report

Static analysis result for SHA-256 be1661144e623b6f…

MALICIOUS

PDF

45.0 KB Created: 2020-03-31 22:11:37 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 5f755315d701b7445523eae61b82f6eb SHA-1: 21b1ccd8b8bb1088459447b299272a455cbfd7e2 SHA-256: be1661144e623b6f04460f2c13f4db3667ce4741ceee87d2d83687487aa08841
62 Risk Score

Malware Insights

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

The PDF document contains a large number of embedded links, a technique commonly used for SEO link farms or to direct users to malicious content. The document body, though partially corrupted, includes a URL that points to a suspicious domain, and the PDF_SEO_LINK_FARM heuristic indicates a mass of external links, suggesting a phishing or malware distribution attempt. No scripts were extracted from this sample.

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://antiviruseprotectserviceonline.site/uploads/1/3/0/6/130640052/130640052.html#que+son+espolones+en+los+pies
    • http://tripleauniqueclothing.com/uploads/1/3/0/8/130873915/76536a9eaee9b.pdf
    • http://jadealliance.org/uploads/1/3/0/5/130547552/jazilajufavo-gitaxujadavaba-zejutufama-febikuritufa.pdf
    • http://erikaarana.org/uploads/1/3/0/7/130739032/wanunavidug.pdf
    • http://carbuzzznproductions.com.au/uploads/1/3/1/4/131409309/jajavine-sarijak-visimajiverap-guvebibeni.pdf
    • http://classiccleaningservicellc.com/uploads/1/3/0/7/130775176/namoxabonediv.pdf
    • http://may-som.com/uploads/1/3/0/6/130604032/5260938.pdf
    • http://stephwellseverything.com/uploads/1/3/0/8/130874490/22e5c.pdf
    • http://therealfaceking.com/uploads/1/3/0/9/130969198/2592544.pdf
    • http://bridgegapconsulting.com/uploads/1/3/0/3/130323156/03cf0a.pdf
    • http://artsandcorks.com/uploads/1/3/0/7/130776630/nowenutujudotom.pdf
    • http://leadingrecords.com/uploads/1/3/1/3/131378993/kujok.pdf
    • http://sandiegoemitestlab.com/uploads/1/3/0/7/130740324/4558975.pdf
    • http://solrup.info/uploads/1/3/0/5/130540609/d993b2ecf3.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_off000087bf.bin
4d826e2e509e2db8fc0ad2e1f50022f0435073f6f8cd47d0e230cd8888cf522d		 pdf-font-stream PDF embedded font (sfnt) at offset 0x87BF 8036 bytes

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