Malicious PDF — malware analysis report

Static analysis result for SHA-256 fc0269e48d5a1a5b…

MALICIOUS

PDF

39.8 KB Created: 2020-06-03 08:55:31 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 7e1966bfdf32aabbf73502561391b7a3 SHA-1: b2f0b165d62a9395ec1d5f9846e5bfec32942447 SHA-256: fc0269e48d5a1a5ba990713901ae5bdad8152a647746b86f11aecbfa83fc60b7
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links, many of which point to domains that appear to be part of a link farm designed for SEO manipulation. The primary heuristic indicates a 'PDF_SEO_LINK_FARM', suggesting the document's purpose is to drive traffic to these external, potentially malicious, sites. The document body contains a reference to a 'Radio shack digital multimeter manual', likely a lure to make the document appear legitimate.

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://sta-66-99-58-197.ladse.org/uploads/1/3/1/4/131406800/131406800.html#radio+shack+digital+multimeter+manual+22-809
    • http://taxstation.net/uploads/1/3/1/4/131438758/funoko-jopobugejim.pdf
    • http://outliercreative.studio/uploads/1/3/0/5/130589194/5392502.pdf
    • http://klopsonline.co/uploads/1/3/0/9/130969804/b7e02c.pdf
    • http://sta-66-99-58-197.ladse.org/uploads/1/3/1/4/131406800/terms.html
    • http://sta-66-99-58-197.ladse.org/uploads/1/3/1/4/131406800/dmca.html
    • http://sta-66-99-58-197.ladse.org/uploads/1/3/1/4/131406800/policy.html
    • https://vimolor.files.wordpress.com/2020/05/6777823839.pdf
    • https://tekifevozeba.files.wordpress.com/2020/05/zefojopulokelajijajonig.pdf
    • https://lasewodaba.files.wordpress.com/2020/05/96878801189.pdf
    • https://nomutodiri.files.wordpress.com/2020/05/futudolif.pdf
    • https://pekuseni.files.wordpress.com/2020/05/16595664605.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_off00006c6a.bin
1e89cf9344d9875f0b1d47ae14be7b740e571eb986b3dc1b3d82e91075044dfe		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C6A 11780 bytes

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