Malicious PDF — malware analysis report

Static analysis result for SHA-256 ed89d43243498754…

MALICIOUS

PDF

67.0 KB Created: 2020-06-09 05:47:17 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 8ebe2c4dedf744beb20d0c258b0a7861 SHA-1: 8a07fb73af6f9bb6776a12d3098c9efe6cfcff67 SHA-256: ed89d43243498754d9b985ffdc6c5cad411d0ace57ab7c40b7514d8fb7c0b6b5
62 Risk Score

Malware Insights

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

The PDF file contains a large number of external links, as indicated by the PDF_SEO_LINK_FARM heuristic. These links, such as http://armorgrind.org/uploads/1/3/0/6/130620515/130620515.html#o+mundo+sem+n%25C3%25B3s+pdf, are likely intended to direct users to malicious websites or to manipulate search engine results. No scripts were extracted from this sample, limiting further analysis of its behavior.

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://armorgrind.org/uploads/1/3/0/6/130620515/130620515.html#o+mundo+sem+n%25C3%25B3s+pdf
    • http://representaccounting.co.uk/uploads/1/3/0/4/130435649/9667591.pdf
    • http://hometrustrealproperty.com/uploads/1/3/1/6/131606592/24cce.pdf
    • http://hostmaster.vfpkb.ch/uploads/1/3/0/2/130273753/5719259.pdf
    • http://tasteofbainbridge.org/uploads/1/3/1/3/131383386/wakogos.pdf
    • http://redhotyogastudio.com/uploads/1/3/0/6/130639486/6d28973a57a809.pdf
    • http://mail.jacqueleneambrose.com/uploads/1/3/1/4/131453015/jidunuja.pdf
    • http://3dfurniture3d.com/uploads/1/3/0/8/130873902/947326.pdf
    • http://autismeonderzoek.be/uploads/1/3/0/5/130547552/rolija.pdf
    • http://sticky-plates.com/uploads/1/3/0/6/130621808/votejujatu.pdf
    • https://ziganopu.files.wordpress.com/2020/06/20575681829.pdf
    • https://jejasefepu.files.wordpress.com/2020/06/seziwawipadugodekodi.pdf
    • https://gosijanasi.files.wordpress.com/2020/06/rikotopifufepuwibadaz.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_off0000d60c.bin
06f16741fbe90a10d2eecfe189d6a08914ae035081ee271a75e8d94a06f3ef9d		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD60C 13916 bytes

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