Malicious PDF — malware analysis report

Static analysis result for SHA-256 c2ffaeb3710ab6ca…

MALICIOUS

PDF

40.7 KB Created: 2020-06-06 00:44:48 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 3f7befe154df2f9bb084f440dac5c543 SHA-1: 8dfdb392ed88e9b30b45e7eac2a974785102c5ef SHA-256: c2ffaeb3710ab6cadda589fe0ababd8c5fa56ebd91482cf17049a9e9c764b90e
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links point to various domains, suggesting a link farm or SEO manipulation tactic. The document body itself is largely unreadable but contains some of the URLs. No scripts were extracted from this sample. The primary attack pattern involves directing users to external resources through a dense network of 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://jinyouqipaiyouxidating.br3h.com/uploads/1/3/1/6/131606688/131606688.html#origen+del+capsicum+annuum+pdf
    • http://bellemeadedentalcenter.com/uploads/1/3/0/6/130621800/9488067.pdf
    • http://hearthealthpsa.com/uploads/1/3/0/6/130604984/xelosivadit.pdf
    • http://chrislockett.com/uploads/1/3/1/4/131453045/6fc8d.pdf
    • http://mail.castleislandcamps.com/uploads/1/3/0/6/130639306/5965963.pdf
    • http://waybackwrestling.com/uploads/1/3/0/4/130490774/fazizumetuvus_xosezebasajawam_sajugawuduxo_luwogi.pdf
    • http://generationhit974.com/uploads/1/3/1/3/131398024/7662183.pdf
    • http://bm.axiacar.com/uploads/1/3/0/6/130604887/9238792.pdf
    • http://redvitalize.com/uploads/1/3/1/4/131437457/nekinuverura.pdf
    • http://jinyouqipaiyouxidating.br3h.com/uploads/1/3/1/6/131606688/terms.html
    • http://jinyouqipaiyouxidating.br3h.com/uploads/1/3/1/6/131606688/dmca.html
    • http://jinyouqipaiyouxidating.br3h.com/uploads/1/3/1/6/131606688/policy.html
    • https://mudosezu.files.wordpress.com/2020/06/jevisipinabafexegaxew.pdf
    • https://pepemejone391185662.files.wordpress.com/2020/06/nixudepe.pdf
    • https://pajiwilojex.files.wordpress.com/2020/06/dunelupovurofipuzo.pdf
    • https://latumesu.files.wordpress.com/2020/06/kotadowisizuloledukexa.pdf
    • https://gipetos.files.wordpress.com/2020/06/59446064578.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_off00007150.bin
01966c084de2bcd1e7df43ce379cd35c20ee185661ebb4cb4cf9f885688dc433		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7150 11288 bytes

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