Malicious PDF — malware analysis report

Static analysis result for SHA-256 d1e72a38645244e0…

MALICIOUS

PDF

31.5 KB Created: 2020-06-05 14:42:29 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 897e6d188b680fefb1af2ab0271aa3e7 SHA-1: e6566b270c901f8da9dc776677bdb11c2e733fa2 SHA-256: d1e72a38645244e07523c67fdbe4db02761e02533a6913a71adc41d5515a5ab6
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, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though partially corrupted, contains references to a 'Hyundai santa fe factory service manual' and includes several URLs. These links likely serve to manipulate search engine results or redirect users to malicious websites. 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://mta-sts.mail.webuyhousesone.com/uploads/1/3/0/6/130605497/130605497.html#hyundai+santa+fe+factory+service+manual
    • http://74-123-76-98.mgwnet.com/uploads/1/3/1/4/131453136/segonut_vowaj.pdf
    • http://lgbt-admin-and-assistant.com/uploads/1/3/1/3/131383332/f4851610c8a39e.pdf
    • http://soulwagen.com/uploads/1/3/0/3/130313555/8726888.pdf
    • http://kimberlinclass.com/uploads/1/3/0/4/130479082/xofikezokaxejo_mejidox_wukabos_pusaratusa.pdf
    • http://jardinsetservices.com/uploads/1/3/0/7/130775683/tiladuninurozi.pdf
    • http://beyondwhatyoucansee.com/uploads/1/3/0/3/130323599/e4ef3de17ef6.pdf
    • http://hongliguojiyulechengzuixingonggao.br3h.com/uploads/1/3/0/5/130588922/26deb15b82.pdf
    • http://mta-sts.mail.webuyhousesone.com/uploads/1/3/0/6/130605497/terms.html
    • http://mta-sts.mail.webuyhousesone.com/uploads/1/3/0/6/130605497/dmca.html
    • http://mta-sts.mail.webuyhousesone.com/uploads/1/3/0/6/130605497/policy.html
    • https://dokorutikona.files.wordpress.com/2020/06/81797407944.pdf
    • https://kebesunaxi.files.wordpress.com/2020/06/1207897113.pdf
    • https://refoxakel.files.wordpress.com/2020/06/24653392735.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_off000050ce.bin
40302c417c1f02cc040faeeff559d361627528406bace5283e3e3359aae083ea		 pdf-font-stream PDF embedded font (sfnt) at offset 0x50CE 9884 bytes

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