Malicious PDF — malware analysis report

Static analysis result for SHA-256 c1469ccb83558129…

MALICIOUS

PDF

30.4 KB Created: 2020-06-14 17:44:07 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 633cd5d9ce7b1295e6fd405315acfc68 SHA-1: 6c4d43e78fa8b3690cc254ede5438a199b19f394 SHA-256: c1469ccb835581297ff5dff1ccef279dc6eb5fa1986d3f620ecc234267d50cff
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1204.002 User Execution: Malicious File

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. The document body suggests a lure related to a piano tutorial, which is likely a pretext to drive traffic to these external sites. The primary intent appears to be SEO spam or a link farm, rather than direct malware delivery.

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://unbridledkreations.com/uploads/1/3/1/6/131636974/131636974.html#dream+on+aerosmith+piano+tutorial
    • http://yardsaleseveryday.com/uploads/1/3/1/6/131637583/4228594.pdf
    • http://indianabeerweek.com/uploads/1/3/0/7/130775540/simoraliw.pdf
    • http://castlemusicstudios.com/uploads/1/3/0/5/130545884/todewabus.pdf
    • http://angelsgivingcloset.org/uploads/1/3/0/6/130604294/jotaretu.pdf
    • http://portlandwhiskeycompany.com/uploads/1/3/0/3/130379711/4477216d50.pdf
    • https://jetexazizi.files.wordpress.com/2020/06/dasunawemavokopoxos.pdf
    • https://sinezuve.files.wordpress.com/2020/06/sibukok.pdf
    • https://biwapatevav.files.wordpress.com/2020/06/gofewotupitalubirixozik.pdf
    • https://pujobat.files.wordpress.com/2020/06/67935567731.pdf
    • https://xukemadoz.files.wordpress.com/2020/06/wulobekemaruwisigew.pdf
    • https://kibewozotag.files.wordpress.com/2020/06/55015378248.pdf
    • https://wofopisuf.files.wordpress.com/2020/06/rozekulemesoxeb.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_off00004ba8.bin
6aa0a354b9027a48c3cc27f3c468c80cca065402d46f5c54530e35e5410db06c		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4BA8 10436 bytes

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