Malicious PDF — malware analysis report

Static analysis result for SHA-256 3ef57ebf71d7c1ea…

MALICIOUS

PDF

65.2 KB Created: 2020-06-02 15:15:08 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: a26f80733834dee685735888e16c104f SHA-1: 47a22f133157dc6f15cd257c073865244758b8e0 SHA-256: 3ef57ebf71d7c1ea3b2073ebd98b1dd1d475625907b194ee5b3fdf13965eea78
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.002 Spearphishing Attachment T1059.001 PowerShell

The PDF file was flagged by a machine learning model as malicious and contains numerous external links, indicative of a link farm or SEO spam tactic. The document body, though partially corrupted, contains text related to 'end times' and 'maria v', suggesting a lure. The presence of multiple PDF links and embedded URLs points to an attempt to redirect users to potentially malicious sites.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

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://a1982767xstreamtravel.xsideas.com/uploads/1/3/0/5/130589442/130589442.html#the+end+times+as+revealed+to+maria+v
    • http://spotsylvaniakitchenremodeling.com/uploads/1/3/0/6/130621928/rolapuzanoj.pdf
    • http://mbcouriers.net/uploads/1/3/1/3/131383462/70196.pdf
    • http://witnessthebrand.com/uploads/1/3/1/6/131636587/kudevedezer.pdf
    • http://yatraadvisors.xyz/uploads/1/3/1/4/131453808/wuzebixux-bagusiz.pdf
    • http://a1982767xstreamtravel.xsideas.com/uploads/1/3/0/5/130589442/terms.html
    • http://a1982767xstreamtravel.xsideas.com/uploads/1/3/0/5/130589442/dmca.html
    • http://a1982767xstreamtravel.xsideas.com/uploads/1/3/0/5/130589442/policy.html
    • https://tofosigon.files.wordpress.com/2020/05/pigaziposisezusav.pdf
    • https://jajafer.files.wordpress.com/2020/05/nurosope.pdf
    • https://jogadol.files.wordpress.com/2020/05/29602438726.pdf
    • https://jepovamofeg.files.wordpress.com/2020/05/28661535169.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_off0000d648.bin
dc14a5ccaed7c2a4a03dc0165686b7d18b7b7746fd3f5b0c9198d8c70680ecb6		 pdf-font-stream PDF embedded font (sfnt) at offset 0xD648 10672 bytes

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