Malicious PDF — malware analysis report

Static analysis result for SHA-256 ee3896914bd5b676…

MALICIOUS

PDF

36.5 KB Created: 2020-03-30 10:58:51 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 8e20027f7960bbcdadcc91494398e6ce SHA-1: 1ddf36ec1fe4f9cce995f72a7c6e9b84eec15c89 SHA-256: ee3896914bd5b67611823d234343a848899b40f27a76545ac9c4b0851c2f17f7
62 Risk Score

Malware Insights

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

The PDF contains a large number of external links to various domains, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, includes a URL that points to a similar structure. This suggests a link farm or SEO manipulation tactic, potentially used to distribute malware or phish for credentials through the linked content. No scripts were extracted from this sample.

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://ndchair.com/uploads/1/3/0/4/130436197/130436197.html#ejemplos+de+algoritmos+y+pseudocodigos
    • http://wendyjorredestjorre.com/uploads/1/3/0/8/130813521/5bf0e07e1e1c.pdf
    • http://businessboostprogramme.org/uploads/1/3/0/8/130874396/nabif.pdf
    • http://hostmaster.rheracing.com/uploads/1/3/0/6/130621082/xapoxaxedebud.pdf
    • http://daygroupcompany.com/uploads/1/3/0/2/130288532/1557756.pdf
    • http://thegreatjeffdecker.com/uploads/1/3/0/3/130313196/buzotekexedob_wevote_diluvonedo.pdf
    • http://sfbay.casa/uploads/1/3/0/5/130590637/4640797.pdf
    • http://gsmaintenancesevices.com/uploads/1/3/0/2/130288465/kiboxapuwa-rexubaxonufoj-sininudan-tifemido.pdf
    • http://autonomyroboticscompany.com/uploads/1/3/0/6/130639241/luwibibuzudagaz-petikenodowelim.pdf
    • http://veteranhillhops.com/uploads/1/3/0/7/130738738/6993644.pdf
    • http://dosnorte.com/uploads/1/3/1/3/131398489/xagoburusovewix.pdf
    • http://lifebalanceyogawellness.com/uploads/1/3/0/2/130274028/bozob.pdf
    • http://lillichart.com/uploads/1/3/0/8/130813967/bogolakamakugolisan.pdf
    • http://upinto2.com/uploads/1/3/0/7/130738784/vexeg.pdf
    • http://giftcardguy.org/uploads/1/3/0/5/130551477/404352.pdf
    • http://toddlerchow.com/uploads/1/3/0/6/130639971/402a760a3.pdf
    • http://74-123-72-211.mgwnet.com/uploads/1/3/1/4/131412558/81ed3f.pdf
    • http://shayanehssan.com/uploads/1/3/0/4/130478057/zojiji.pdf
    • http://aditistreetside.com/uploads/1/3/0/5/130589389/xifidita-kogakewa-juzabusajudit.pdf
    • http://botoxalpharetta.com/uploads/1/3/0/8/130873998/jazisif_zunegogodalen_xopoja.pdf
    • http://amberfluidservices.com/uploads/1/3/0/5/130551349/8b742e453.pdf
    • http://leonaguideraart.com/uploads/1/3/0/5/130588588/xubapo-buxikuwajoxi.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_off00006347.bin
9745c5b5a4c9fc9125029ebb8fc16c95b0329e33e70bb7ccd00ad383f198f4e2		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6347 8708 bytes

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