Malicious PDF — malware analysis report

Static analysis result for SHA-256 ab9bec89b53fe7a4…

MALICIOUS

PDF

44.0 KB Created: 2020-04-05 09:14:49 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 9597749b4f49ddec0dbf1384ec6e2b6f SHA-1: 47091a9cb14a2afddc0aaf66539ecdcfd66c1aff SHA-256: ab9bec89b53fe7a407f24b3f4063b4cbce34255ca3b729ec5636ed8d97d3f9dd
62 Risk Score

Malware Insights

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

The PDF file contains numerous external links, a technique commonly used to create SEO link farms. The document body, though partially obfuscated, suggests a lure related to 'communication intention examples'. The primary heuristic identified a mass of external PDF links, indicating a malicious intent to redirect users to potentially harmful or spam 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://newgrowthcounselingservices.com/uploads/1/3/0/6/130603929/130603929.html#ejemplos+de+intencion+comunicativa+fatica
    • http://r3notaryservices.com/uploads/1/3/0/4/130476146/sajosane.pdf
    • http://twoteachersaboard.com/uploads/1/3/0/3/130323556/6801000.pdf
    • http://alsubhitradingltd.com/uploads/1/3/0/7/130740010/1904374.pdf
    • http://theflowercompanyofirthlingborough.com/uploads/1/3/0/2/130273610/nexogiwu_jekunikami.pdf
    • http://covingtonelectric-ms.com/uploads/1/3/0/2/130289749/mulap_putilolufis_lopaxojebij_nipowo.pdf
    • http://anormalwebistebychester.com/uploads/1/3/0/6/130620627/nunigudanafokeni.pdf
    • http://cpmconsultancylettings.com/uploads/1/3/0/3/130313191/8053157.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_off000081fe.bin
a221df6a0d8fbccbd05e3390d4ac1c4f91e45e144546699ac17d1b44b98002de		 pdf-font-stream PDF embedded font (sfnt) at offset 0x81FE 8660 bytes

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