Malicious PDF — malware analysis report

Static analysis result for SHA-256 dc7478f5d6aedcc7…

MALICIOUS

PDF

45.4 KB Created: 2020-04-19 20:07:11 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 4a4081b0fe91907e2b22f9e99a28af67 SHA-1: 86deab2b83c7cf2d0713bffed6e6b5476a42ef89 SHA-256: dc7478f5d6aedcc743c96a6cb5f3b9b6a198db7560637a7191ace4352f881c54
62 Risk Score

Malware Insights

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

The PDF document contains a mass external link farm, with multiple URLs pointing to PDF files hosted on various domains. The document body, though partially corrupted, includes a reference to 'Copper mountain snow report 10 day forecast', suggesting a lure to entice users to click on the embedded links. The primary heuristic 'PDF_SEO_LINK_FARM' indicates a large number of external links, likely intended to redirect users to malicious content or to manipulate search engine results.

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://fetesetevenementsspeciaux.com/uploads/1/3/1/4/131414743/131414743.html#copper+mountain+snow+report+10+day+forecast
    • http://galleryeda.com/uploads/1/3/1/3/131383580/7833172.pdf
    • http://somasoak.com/uploads/1/3/0/6/130604072/gijudojedon-zugedodunanox.pdf
    • http://holycrustpizza.com/uploads/1/3/0/6/130620951/tuzumojurutuduwenozu.pdf
    • http://ga400portfoliofinancing.com/uploads/1/3/0/5/130539205/c7f26c8e9.pdf
    • http://stthomaschiro.com/uploads/1/3/0/4/130476896/tabelamege.pdf
    • http://anewlooknc.com/uploads/1/3/0/7/130776321/eff2c967.pdf
    • http://ezsuccess4all.com/uploads/1/3/0/2/130273743/viwodebowixal.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 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off000071f8.bin
02d4e653e6a287d674179d9af65a2f47040552fcd5a8fdeddb64315d3c1fda7a		 pdf-font-stream PDF embedded font (sfnt) at offset 0x71F8 8612 bytes
font_01_sfnt_off000092f3.bin
b3affdfdfee497c2d3230853582529cf395d265bfdbb8cde7d84ae9c33602211		 pdf-font-stream PDF embedded font (sfnt) at offset 0x92F3 16036 bytes

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