Malicious PDF — malware analysis report

Static analysis result for SHA-256 c9f855f9fae553c5…

MALICIOUS

PDF

37.6 KB Created: 2020-06-07 17:49:18 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 571521f21efedd649319f4bb91582d97 SHA-1: 39aa50b8865a536d3ae6f1c0995ceb38708492f9 SHA-256: c9f855f9fae553c54a7a42454ac936c7a3ecbd68cf42efdc04db85c1fa98a94f
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Phishing: Spearphishing Attachment T1204.002 Malicious File: Malicious Link

The PDF document contains a large number of external links, identified as a 'PDF_SEO_LINK_FARM' heuristic. The embedded document body text, though partially corrupted, also contains URLs. These links likely serve to manipulate search engine results or redirect users to malicious content. No scripts were extracted from this sample, limiting further analysis of its direct payload.

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://lamphousecoworking.com/uploads/1/3/1/8/131856333/131856333.html#html+5+ders+notlar%25C4%25B1
    • http://sgpt.ca/uploads/1/3/0/6/130621279/f565cef.pdf
    • http://refresh-holidays.com/uploads/1/3/0/6/130604657/kukozewadig_sijoxopekug_potisera_deligufopa.pdf
    • http://bepita.ch/uploads/1/3/1/4/131411539/vumitopulazimipagoke.pdf
    • http://spotithomeinspections.com/uploads/1/3/0/6/130620773/tadobojodeb.pdf
    • http://cuantifica.com/uploads/1/3/1/0/131069890/5092628.pdf
    • http://chattanoogacrawlspaceencapsulations.com/uploads/1/3/1/6/131606179/puziwugupovixasut.pdf
    • http://ldcc.nl/uploads/1/3/0/3/130312984/4012015.pdf
    • http://doctorfieser.com/uploads/1/3/1/6/131636734/bamudeletudiv.pdf
    • http://hildegeuens.com/uploads/1/3/0/4/130489128/2688499.pdf
    • http://pathoftheholyway.org/uploads/1/3/0/6/130604445/medow-kumemodi-jitamemalavi.pdf
    • http://brittanyciara.com/uploads/1/3/0/7/130740012/6aae5.pdf
    • http://curbsided.com/uploads/1/3/0/8/130813848/kogalizawulexof-kugaji-zirifux.pdf
    • http://passionbrandingco.com/uploads/1/3/0/4/130476493/viwanalazug-nezefuked.pdf
    • https://fizabisus373515903.files.wordpress.com/2020/06/kadafapeloki.pdf
    • https://gamumibas.files.wordpress.com/2020/06/57429275480.pdf
    • https://vikezepe379027054.files.wordpress.com/2020/06/62333766686.pdf
    • https://pubufifadako.files.wordpress.com/2020/06/14194009689.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_off0000633e.bin
b82f44ab2d3c1f324339667b09c42ed3d6c50842c9d63bae4ead5fb1eef9ec1f		 pdf-font-stream PDF embedded font (sfnt) at offset 0x633E 12032 bytes

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