Malicious PDF — malware analysis report

Static analysis result for SHA-256 baca1f6e67f54527…

MALICIOUS

PDF

34.6 KB Created: 2020-05-16 17:57:30 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7)
MD5: b9cea8bb73cc29dffedeb705eeb020cd SHA-1: de866400e38a622de3ac0ec5855720b98eedd48e SHA-256: baca1f6e67f54527008601288d0dcff3b9f2049adb2e475342474dcd2cba0b1e
92 Risk Score

Malware Insights

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

The PDF contains a large number of embedded external links, identified by the PDF_SEO_LINK_FARM heuristic. The document body, though heavily obfuscated, also contains URLs. These elements strongly suggest a malicious intent to redirect users to potentially harmful websites, possibly for SEO spam or phishing purposes. No scripts were extracted, limiting further analysis of the execution chain.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9997

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://qualitycareafh.com/uploads/1/3/0/9/130969603/130969603.html#tra%25C3%25A7o+falciforme+o+que+%25C3%25A9
    • http://straightshottransport.net/uploads/1/3/0/8/130874129/segiwivov.pdf
    • http://themostpositiveplaceonthenet.com/uploads/1/3/0/6/130621000/593ea.pdf
    • http://lamajnyc.com/uploads/1/3/0/5/130551670/465314.pdf
    • http://revival-recovery.com/uploads/1/3/1/4/131482887/zikajagodivuwoxiko.pdf
    • http://drdavidniederkohr.com/uploads/1/3/0/5/130551339/ganepixo-wafololinufo-pemesovodepaf-fomasizarita.pdf
    • http://vailskishuttle.com/uploads/1/3/1/4/131413222/wevedekalivipepe.pdf
    • http://bbgopay.com/uploads/1/3/0/3/130323285/2137253.pdf
    • http://550kirklandway.com/uploads/1/3/0/7/130776791/suver_gufupizem_dijesukuja_kozug.pdf
    • http://mimca-whistler.shop/uploads/1/3/0/5/130550948/948487.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_off00005895.bin
72372beeefc04c2d574e9e76b67524acdb51c5531e5fa051affade169e25b2b9		 pdf-font-stream PDF embedded font (sfnt) at offset 0x5895 12768 bytes

Open this report in the interactive analyzer, or submit your own file for analysis.