Malicious PDF — malware analysis report

Static analysis result for SHA-256 fd246653f70c57d1…

MALICIOUS

PDF

47.7 KB Created: 2020-04-27 00:59:35 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 3f490fd465abb421d465ab2e05255535 SHA-1: edbd25e3410b563a5c755d41dc7c258108040417 SHA-256: fd246653f70c57d111fbde63c08309fe12290797cd57341d0bbb6f1a404bf4ca
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, identified by the PDF_SEO_LINK_FARM heuristic, pointing to various domains. One of these links, http://mychinesewatch.com/uploads/1/3/1/4/131406569/131406569.html#branding+guidelines+sample, is presented as a branding guidelines sample. The presence of a large number of external links suggests a link farm or a distribution mechanism for further malicious content.

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://mychinesewatch.com/uploads/1/3/1/4/131406569/131406569.html#branding+guidelines+sample
    • http://touchhygiene.com/uploads/1/3/0/9/130969592/dikesisa.pdf
    • http://wslicoalition.org/uploads/1/3/1/4/131406344/xixifikug_lukogof_wazurefepatul_ramerebaf.pdf
    • http://my911alerts.com/uploads/1/3/0/3/130313323/depinap.pdf
    • http://akliluseium.com/uploads/1/3/0/4/130488574/8219136.pdf
    • http://collegestationtowing.com/uploads/1/3/0/3/130313500/a2f9aec83edafe8.pdf
    • http://goodshepherdchristianacademyms.com/uploads/1/3/0/9/130968985/xipawujab.pdf
    • http://widespectrum.net/uploads/1/3/0/5/130589146/2367223.pdf
    • http://airpnv.biz/uploads/1/3/0/5/130588827/772eaa137.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_off00008df7.bin
950e3500b23efdc1fad3912146ce8529b350db388482b3f7bcd11a1faa8025bf		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8DF7 9380 bytes

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