Malicious PDF — malware analysis report

Static analysis result for SHA-256 371042ee3defb288…

MALICIOUS

PDF

38.8 KB Created: 2020-06-04 18:47:43 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7848a5b0fa8593cbaa7bc460b16c8fb4 SHA-1: a1335ace3d93e6f686d42f72c438ff770e7e372d SHA-256: 371042ee3defb288482508bb7b069f6803c987a78c6a3e3fd98f049dcc98c043
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 seemingly unrelated domains and are structured to appear as SEO-optimized content. The document body, though heavily obfuscated, contains text related to an 'Elevator modernization checklist' and includes URLs that are likely part of a link farm or phishing scheme. The primary intent appears to be directing users to malicious websites through these embedded links.

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://gracecartercapstone.com/uploads/1/3/1/4/131406621/131406621.html#elevator+modernization+checklist
    • http://shipleyandwayland.info/uploads/1/3/0/2/130291328/xuvas.pdf
    • http://stardustedstones.com/uploads/1/3/0/6/130639966/muwimesusenugixiz.pdf
    • http://soundherd.com/uploads/1/3/0/6/130621349/ccec6c66.pdf
    • http://thanhthanhcafe.com/uploads/1/3/1/4/131453053/xemali.pdf
    • http://perfectbalancenutrition.net/uploads/1/3/0/5/130588445/2121865.pdf
    • http://watchill.net/uploads/1/3/1/4/131437552/109fc.pdf
    • http://streampulse.info/uploads/1/3/1/4/131482808/mosefejojezuwe-vudavupekebamu.pdf
    • http://a1049669xstreamtravel.xsideas.com/uploads/1/3/0/6/130639706/gapuro.pdf
    • http://nuernbergergrund.de/uploads/1/3/0/5/130551164/gizigefepime_nedoxemufuv_pusipetom_rufovirupolax.pdf
    • http://gracecartercapstone.com/uploads/1/3/1/4/131406621/terms.html
    • http://gracecartercapstone.com/uploads/1/3/1/4/131406621/dmca.html
    • http://gracecartercapstone.com/uploads/1/3/1/4/131406621/policy.html
    • https://telemuwivine.files.wordpress.com/2020/06/tavix.pdf
    • https://vejokapixo.files.wordpress.com/2020/06/28072773858.pdf
    • https://datefakifeba.files.wordpress.com/2020/06/wisudadomi.pdf
    • https://nuxejilujuja.files.wordpress.com/2020/06/daxuke.pdf
    • https://vosuzogareg.files.wordpress.com/2020/06/52818501030.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_off00006b99.bin
eac56c6dad8f24126d1f61b513de663db68edd0d5cf53a44bc58775a2e241ce1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6B99 10400 bytes

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