Malicious PDF — malware analysis report

Static analysis result for SHA-256 f683fcf74eac9e7d…

MALICIOUS

PDF

36.9 KB Created: 2020-06-02 22:47:02 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 559c19f9013d89df5ffaa2744833029f SHA-1: 2b8ee7f3b18698a1101c43a2f4ff5744ec8e61bb SHA-256: f683fcf74eac9e7d0d2008581c98dd4c7f3e4701c92c30f802842195456f5ad7
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, identified by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The embedded URLs and the document body text, which includes references to 'angel number' and the wkhtmltopdf generator, indicate a potential lure to external, possibly malicious, content. No scripts were extracted, limiting the analysis of direct payload execution.

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://webmail.k4jtm.com/uploads/1/3/0/6/130621431/130621431.html#2666+angel+number
    • http://hostmaster.ruthiethomas.com/uploads/1/3/0/5/130588934/6101322.pdf
    • http://floridatrailrides.com/uploads/1/3/0/5/130588332/fekidomutawar.pdf
    • http://strengthspeedtraining.com/uploads/1/3/1/4/131437623/1365480.pdf
    • http://sparkad.net/uploads/1/3/0/5/130588164/fedibogetubarojata.pdf
    • http://melissaebbe.com/uploads/1/3/0/8/130874485/xufaru.pdf
    • http://webmail.k4jtm.com/uploads/1/3/0/6/130621431/terms.html
    • http://webmail.k4jtm.com/uploads/1/3/0/6/130621431/dmca.html
    • http://webmail.k4jtm.com/uploads/1/3/0/6/130621431/policy.html
    • https://vifilal.files.wordpress.com/2020/05/51282034294.pdf
    • https://xijijupere.files.wordpress.com/2020/05/5907240773.pdf
    • https://dasawiduved.files.wordpress.com/2020/05/savitedexataw.pdf
    • https://gepuguxiro.files.wordpress.com/2020/05/13877939719.pdf
    • https://ruzugebemem.files.wordpress.com/2020/05/89420116676.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_off00006669.bin
a40b61686b4d146313317a6eb3e6d45622004d057bf51b5f220af1bf03741cc8		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6669 10112 bytes

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