Malicious PDF — malware analysis report

Static analysis result for SHA-256 943aca520cc3ae14…

MALICIOUS

PDF

30.8 KB Created: 2020-06-01 01:09:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: 84edfa29720daa7b965887a7fcb74fcc SHA-1: c042f60176165b56ec61e8f10ce25575096c0d5b SHA-256: 943aca520cc3ae147f5b0105456f31e4fa55856c3cc507643fe705d8c69859a6
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, identified as a 'PDF_SEO_LINK_FARM' heuristic. The primary external URL points to a page that appears to be part of a content farm. While the document body is heavily obfuscated, the presence of numerous links suggests an attempt to direct users to potentially malicious or misleading content, possibly for SEO manipulation or to host further stages of an attack. 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://a1886807xstreamtravel.xsideas.com/uploads/1/3/0/5/130588425/130588425.html#musical+vaselina+guion+corto
    • https://dizusepi.files.wordpress.com/2020/05/nilebidilovaw.pdf
    • https://tixobumot.files.wordpress.com/2020/05/bebexes.pdf
    • https://vavimanuda.files.wordpress.com/2020/05/51059525530.pdf
    • https://disumagovuza.files.wordpress.com/2020/06/28814772419.pdf
    • https://vemupuki.files.wordpress.com/2020/05/44789189415.pdf
    • https://datunexa.files.wordpress.com/2020/05/kagexefigunifonab.pdf
    • https://xebovuwuru247153088.files.wordpress.com/2020/05/dojinezojaludubexavu.pdf
    • https://mobovowafe.files.wordpress.com/2020/05/rififevinefokoseluxo.pdf
    • https://kututewopox.files.wordpress.com/2020/06/vazusuwetedibumebujax.pdf
    • https://pezuxoni.files.wordpress.com/2020/06/96781703014.pdf
    • https://kisefavel526658237.files.wordpress.com/2020/05/pozorodux.pdf
    • https://gozuwej.files.wordpress.com/2020/05/7252917302.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_off00004c71.bin
17515fd81cf139233fe75fc224d424e8b929121bb8f291396dd806b1a9689275		 pdf-font-stream PDF embedded font (sfnt) at offset 0x4C71 10452 bytes

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