Malicious PDF — malware analysis report

Static analysis result for SHA-256 e81de60863491603…

MALICIOUS

PDF

39.5 KB Created: 2020-06-04 06:08:37 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 418cd529feea4fe1beb1c3139ef4e1ea SHA-1: e813cbc3a669af3d1a68cd4ff2041953c4bf1024 SHA-256: e81de60863491603eb7caa03446ec3df556ae5709d71520e72d139614d5a7966
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file contains numerous embedded URLs, many of which point to domains that appear to be part of a link farm or SEO manipulation scheme. The document body, though heavily obfuscated, contains references to a 'Ryobi ry253ss manual' and the wkhtmltopdf tool, suggesting a lure to trick users into visiting malicious sites. The heuristic 'PDF_SEO_LINK_FARM' strongly indicates a malicious intent to distribute content or malware via these 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://74-123-72-172.mgwnet.com/uploads/1/3/0/7/130776827/130776827.html#ryobi+ry253ss+manual
    • http://siteless.club/uploads/1/3/0/2/130271132/gazab.pdf
    • http://coralsunaviation.net/uploads/1/3/0/2/130292148/5bfa798c893098b.pdf
    • http://northcurlcurlphysio.org/uploads/1/3/1/3/131383586/2227584.pdf
    • http://integratescore.org/uploads/1/3/1/6/131606822/jadireson.pdf
    • http://highway180.com/uploads/1/3/0/8/130874015/6520588.pdf
    • http://74-123-72-172.mgwnet.com/uploads/1/3/0/7/130776827/terms.html
    • http://74-123-72-172.mgwnet.com/uploads/1/3/0/7/130776827/dmca.html
    • http://74-123-72-172.mgwnet.com/uploads/1/3/0/7/130776827/policy.html
    • http://highway180.com/uploads/1/3/0/8/130874015/6520
    • https://negijemo435655524.files.wordpress.com/2020/06/85487811493.pdf
    • https://fujipoveju.files.wordpress.com/2020/06/dogufaxujisizelage.pdf
    • https://fakevekabom.files.wordpress.com/2020/06/87503909183.pdf
    • https://dakemevodugu.files.wordpress.com/2020/06/9151572448.pdf
    • https://kesakede.files.wordpress.com/2020/06/67430060583.pdf
    • https://kawumafovod.files.wordpress.com/2020/06/53187794197.pdf
    • https://bugoxalob.files.wordpress.com/2020/06/xidiwibin.pdf
    • https://kudarute.files.wordpress.com/2020/06/jusawonuxox.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_off00006dd7.bin
81a12e575df3a4e21e7c4b725cf2b1a6ab52049530e353ae0502c075299faceb		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6DD7 10740 bytes

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