Malicious PDF — malware analysis report

Static analysis result for SHA-256 327f5f6777a4dbf3…

MALICIOUS

PDF

40.4 KB Created: 2020-03-27 04:42:44 +02:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 46d94df38bf563c9fd9b950b5a54afe2 SHA-1: 93fd641746b011b485d024adc280143d8a4d35b6 SHA-256: 327f5f6777a4dbf3dd772d91d0cbda5f8c75f026a896c3cc15cca2df3d992f56
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, many of which point to other PDF files hosted on various domains. The document body text, though partially corrupted, includes Spanish text related to a public deed of sale, suggesting a lure. The primary heuristic indicates a PDF link farm, and another identifies an external URI pointing to a deceptive HTML page. These elements suggest the document is designed to redirect users to potentially malicious content or phishing sites.

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://jessicalgervaisbooks.com/uploads/1/3/0/6/130604543/130604543.html#ejemplo+de+escritura+publica+de+compraventa+en+mexico
    • http://myrallylife.com/uploads/1/3/0/3/130379529/957d965205.pdf
    • http://better-for-me.com/uploads/1/3/0/5/130545194/2cb3e82b508c81.pdf
    • http://995silver.com/uploads/1/3/0/5/130588731/0d602b34a0820.pdf
    • http://renderbarn.com/uploads/1/3/0/3/130323789/5920355.pdf
    • http://vferme.net/uploads/1/3/0/5/130551132/valavukadezido.pdf
    • http://mistykwilliams.com/uploads/1/3/0/4/130476013/gigagudunepil-tebajuf.pdf
    • http://firstollie.net/uploads/1/3/0/7/130775819/luwanowirawotoxoxeba.pdf
    • http://aspoolquiltingco.com/uploads/1/3/0/6/130639294/gevolux.pdf
    • http://communitysafetytraining.org/uploads/1/3/0/7/130776458/fecb28d0bb1a.pdf
    • http://limitlessvoyage.com/uploads/1/3/0/5/130551378/gogiwupute.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_off00006e29.bin
dfc9b82ad7ba2b6ce935ee33c408564dcbf003365b588e7a5360a177f54632f1		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6E29 10404 bytes

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