Malicious PDF — malware analysis report

Static analysis result for SHA-256 235d6f3a815cd2cd…

MALICIOUS

PDF

43.4 KB Created: 2020-06-19 06:38:24 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 95c50630d80acae9fc0fd4a07306148a SHA-1: fc13369181720e459e279f069cc37bb0f4ba3041 SHA-256: 235d6f3a815cd2cd9963b06eb8badcc7d04a8b9e99768b06018cdd6670a3a4ef
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. These links point to various domains, suggesting a link farm or a distribution mechanism for further malicious content. No scripts were extracted from this sample. The primary attack pattern involves luring the user to click on these external links.

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://mailserver.gigi-designs.co.uk/uploads/1/3/0/6/130622104/130622104.html#lighting+aquarium+guide
    • http://mail.piccoloartista.com/uploads/1/3/0/7/130776582/tubozivi-seloritatef-najokedudepel-vorisov.pdf
    • http://angryhealthcoach.com/uploads/1/3/0/4/130436007/34971ab97.pdf
    • http://ebdoproperties.com/uploads/1/3/1/8/131856815/rafavumenamo.pdf
    • http://openpsy.facile.hosting/uploads/1/3/0/6/130620478/6389248.pdf
    • http://videolinkrc.com/uploads/1/3/1/4/131483719/899b673779.pdf
    • http://thestartingpointllc.com/uploads/1/3/0/2/130287238/wuxojabo_fugin_nitizasadatili_dowemilisubug.pdf
    • http://asesoresdesegurosmanejar.com/uploads/1/3/1/4/131412858/tosowese-kuwisodejus-salamuvupem.pdf
    • http://daytonacondosandhomes.com/uploads/1/3/1/4/131453907/cf2f799d90c29.pdf
    • http://parents.sprigeo.com/uploads/1/3/1/3/131379824/9763717.pdf
    • http://74-123-72-187.mgwnet.com/uploads/1/3/0/4/130476628/filotume_mitev.pdf
    • http://styleagency.com/uploads/1/3/0/5/130589008/moziripun.pdf
    • http://cavesandlake.com/uploads/1/3/1/6/131606331/238e6.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_off00006d2f.bin
7b98bc67ed7fa9a0cb0cc1c8ec093d6bae1fefc1f0ba289560834bd28c64d8da		 pdf-font-stream PDF embedded font (sfnt) at offset 0x6D2F 4868 bytes
font_01_sfnt_off00007d77.bin
77fc35ec1b93dad4f4c8f43f4476c0bcf79d4723051aefd2e9817f3754a7b222		 pdf-font-stream PDF embedded font (sfnt) at offset 0x7D77 10556 bytes

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