Malicious PDF — malware analysis report

Static analysis result for SHA-256 cfeafb9eefd320f3…

MALICIOUS

PDF

43.6 KB Created: 2020-06-14 16:08:22 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: ffaf231cdad0ae95434a7ffa81fbfd16 SHA-1: faa88eebde2f3f095afbd9259f7a36d9cf86733e SHA-256: cfeafb9eefd320f32aaf4a0560aea3fd77d424827fc5831a353532c195fa6ab9
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a common tactic for SEO spam or phishing campaigns. The heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, suggesting a malicious intent to drive traffic to potentially harmful sites. The document body, though heavily obfuscated, contains text related to a 'Stanley superstar oil manual' and the wkhtmltopdf application, which could be a lure. 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://transportdoszwajcarii.com/uploads/1/3/0/7/130775737/130775737.html#stanley+superstar+oil+manual
    • http://robynkiltygardensnow.co.nz/uploads/1/3/1/3/131383514/cd4b175557e543.pdf
    • http://archetype.graphics/uploads/1/3/1/4/131409621/0e8c91.pdf
    • http://mcag.com.au/uploads/1/3/0/2/130273748/bixigotu.pdf
    • http://nikkiheyder.com/uploads/1/3/1/3/131380627/midokeba.pdf
    • http://rimasrl.facile.hosting/uploads/1/3/0/4/130492038/2679364.pdf
    • http://sabinescottage.com/uploads/1/3/0/5/130539205/8dd1a256db5d.pdf
    • http://london-office-2.pleasingfood.com/uploads/1/3/0/4/130436145/4197955.pdf
    • http://mail.speluqueros.com/uploads/1/3/0/5/130550910/87509f0f841.pdf
    • https://jerurig.files.wordpress.com/2020/06/71601977465.pdf
    • https://kurizuveji.files.wordpress.com/2020/06/33194947001.pdf
    • https://betusomoru.files.wordpress.com/2020/06/ziwabafetaze.pdf
    • https://dupowoso.files.wordpress.com/2020/06/zozukaj.pdf
    • https://suzonuvo.files.wordpress.com/2020/06/zuzoxuvumomebunusogubor.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_off00007999.bin
3f3ab5d0bb856e4405c123c2fd7b511d68189ee2e097676bcf122c21ebde6bc6		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7999 12112 bytes

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