Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fa6343df8e55ed4…

MALICIOUS

PDF

37.9 KB Created: 2020-03-30 23:04:32 +03:00 Authoring application: wkhtmltopdf 0.12.1.4 (via Qt 4.8.6)
MD5: 48b83520f70981555c56b487f482294b SHA-1: 42c77ffeeb0d9932f05177a50e626abac1b3600b SHA-256: 3fa6343df8e55ed4701539c3de2f71b8babd8e2b8ae7aeb5d403e6234de1805f
62 Risk Score

Malware Insights

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

The PDF document contains a large number of external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body text, though partially corrupted, includes a title related to book prologues and metadata indicating it was generated by wkhtmltopdf. The primary intent appears to be SEO manipulation or directing users to a large number of potentially malicious or low-quality PDF documents hosted on various domains.

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://cocescreationsanddesigns.com/uploads/1/3/0/2/130287923/130287923.html#como+elaborar+un+prologo+de+un+libro
    • http://jeffcaroldavenportartist.com/uploads/1/3/0/2/130272240/9227838.pdf
    • http://alaskarvcamping.com/uploads/1/3/0/2/130272414/lixom.pdf
    • http://bootlegrp.com/uploads/1/3/1/4/131436991/5894667.pdf
    • http://northstarmedics.com/uploads/1/3/0/3/130312964/1753461.pdf
    • http://manoliskaratarakis.website/uploads/1/3/0/9/130969175/1286698.pdf
    • http://theabyssarts.com/uploads/1/3/0/7/130738497/wetuv.pdf
    • http://my-lose-fat.com/uploads/1/3/0/7/130775776/5decb9471.pdf
    • http://ahomeservices.org/uploads/1/3/0/5/130588297/tumuxagu-jemokik-kimuxiliga-fedagorizetuwu.pdf
    • http://andrewbroomepianist.com/uploads/1/3/0/6/130621926/f1d31b.pdf
    • http://delucaconsulting.se/uploads/1/3/0/5/130589133/lasusazidovaninix.pdf
    • http://wavebuyer.com/uploads/1/3/0/6/130639535/d1e44bdf8aa15a5.pdf
    • http://awesomesportkicks.club/uploads/1/3/0/4/130489417/totoxav.pdf
    • http://barnetthealthconsulting.com/uploads/1/3/0/2/130288559/pesixefavuzi_wawutumewe_duzogog_lijapifimez.pdf
    • http://performx.shop/uploads/1/3/0/5/130541133/padefodesafi.pdf
    • http://napashuttlelimo.com/uploads/1/3/0/3/130323748/2733802.pdf
    • http://autodiscover.elkeycouture.nl/uploads/1/3/0/7/130775047/katadidorit-xavel-jotixakina-legulupexenebod.pdf
    • http://arttherapyinnovations.com/uploads/1/3/0/6/130604646/bupolunib.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_off00006c1d.bin
fff527fcd47e7e3d867f06faf3d2dbaeda1e46a28d3b799aee67ef17f1e2b00e		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6C1D 7952 bytes

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